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Chen Z, Guo X, Tao R, Huyghe JR, Law PJ, Fernandez-Rozadilla C, Ping J, Jia G, Long J, Li C, Shen Q, Xie Y, Timofeeva MN, Thomas M, Schmit SL, Díez-Obrero V, Devall M, Moratalla-Navarro F, Fernandez-Tajes J, Palles C, Sherwood K, Briggs SEW, Svinti V, Donnelly K, Farrington SM, Blackmur J, Vaughan-Shaw PG, Shu XO, Lu Y, Broderick P, Studd J, Harrison TA, Conti DV, Schumacher FR, Melas M, Rennert G, Obón-Santacana M, Martín-Sánchez V, Oh JH, Kim J, Jee SH, Jung KJ, Kweon SS, Shin MH, Shin A, Ahn YO, Kim DH, Oze I, Wen W, Matsuo K, Matsuda K, Tanikawa C, Ren Z, Gao YT, Jia WH, Hopper JL, Jenkins MA, Win AK, Pai RK, Figueiredo JC, Haile RW, Gallinger S, Woods MO, Newcomb PA, Duggan D, Cheadle JP, Kaplan R, Kerr R, Kerr D, Kirac I, Böhm J, Mecklin JP, Jousilahti P, Knekt P, Aaltonen LA, Rissanen H, Pukkala E, Eriksson JG, Cajuso T, Hänninen U, Kondelin J, Palin K, Tanskanen T, Renkonen-Sinisalo L, Männistö S, Albanes D, Weinstein SJ, Ruiz-Narvaez E, Palmer JR, Buchanan DD, Platz EA, Visvanathan K, Ulrich CM, Siegel E, Brezina S, Gsur A, Campbell PT, Chang-Claude J, Hoffmeister M, Brenner H, Slattery ML, Potter JD, Tsilidis KK, Schulze MB, Gunter MJ, Murphy N, Castells A, Castellví-Bel S, Moreira L, Arndt V, Shcherbina A, Bishop DT, Giles GG, Southey MC, Idos GE, McDonnell KJ, Abu-Ful Z, Greenson JK, Shulman K, Lejbkowicz F, Offit K, Su YR, Steinfelder R, Keku TO, van Guelpen B, Hudson TJ, Hampel H, Pearlman R, Berndt SI, Hayes RB, Martinez ME, Thomas SS, Pharoah PDP, Larsson SC, Yen Y, Lenz HJ, White E, Li L, Doheny KF, Pugh E, Shelford T, Chan AT, Cruz-Correa M, Lindblom A, Hunter DJ, Joshi AD, Schafmayer C, Scacheri PC, Kundaje A, Schoen RE, Hampe J, Stadler ZK, Vodicka P, Vodickova L, Vymetalkova V, Edlund CK, Gauderman WJ, Shibata D, Toland A, Markowitz S, Kim A, Chanock SJ, van Duijnhoven F, Feskens EJM, Sakoda LC, Gago-Dominguez M, Wolk A, Pardini B, FitzGerald LM, Lee SC, Ogino S, Bien SA, Kooperberg C, Li CI, Lin Y, Prentice R, Qu C, Bézieau S, Yamaji T, Sawada N, Iwasaki M, Le Marchand L, Wu AH, Qu C, McNeil CE, Coetzee G, Hayward C, Deary IJ, Harris SE, Theodoratou E, Reid S, Walker M, Ooi LY, Lau KS, Zhao H, Hsu L, Cai Q, Dunlop MG, Gruber SB, Houlston RS, Moreno V, Casey G, Peters U, Tomlinson I, Zheng W. Fine-mapping analysis including over 254,000 East Asian and European descendants identifies 136 putative colorectal cancer susceptibility genes. Nat Commun 2024; 15:3557. [PMID: 38670944 PMCID: PMC11053150 DOI: 10.1038/s41467-024-47399-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Genome-wide association studies (GWAS) have identified more than 200 common genetic variants independently associated with colorectal cancer (CRC) risk, but the causal variants and target genes are mostly unknown. We sought to fine-map all known CRC risk loci using GWAS data from 100,204 cases and 154,587 controls of East Asian and European ancestry. Our stepwise conditional analyses revealed 238 independent association signals of CRC risk, each with a set of credible causal variants (CCVs), of which 28 signals had a single CCV. Our cis-eQTL/mQTL and colocalization analyses using colorectal tissue-specific transcriptome and methylome data separately from 1299 and 321 individuals, along with functional genomic investigation, uncovered 136 putative CRC susceptibility genes, including 56 genes not previously reported. Analyses of single-cell RNA-seq data from colorectal tissues revealed 17 putative CRC susceptibility genes with distinct expression patterns in specific cell types. Analyses of whole exome sequencing data provided additional support for several target genes identified in this study as CRC susceptibility genes. Enrichment analyses of the 136 genes uncover pathways not previously linked to CRC risk. Our study substantially expanded association signals for CRC and provided additional insight into the biological mechanisms underlying CRC development.
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Affiliation(s)
- Zhishan Chen
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Xingyi Guo
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Ran Tao
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, 37232, TN, USA
| | - Jeroen R Huyghe
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Philip J Law
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - Ceres Fernandez-Rozadilla
- Edinburgh Cancer Research Centre, Institute of Genomics and Cancer, University of Edinburgh, Edinburgh, UK
- Genomic Medicine Group, Instituto de Investigacion Sanitaria de Santiago, Santiago de Compostela, Spain
| | - Jie Ping
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Guochong Jia
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jirong Long
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Chao Li
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Quanhu Shen
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Yuhan Xie
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
| | - Maria N Timofeeva
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Danish Institute for Advanced Study, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Minta Thomas
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Stephanie L Schmit
- Genomic Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
- Population and Cancer Prevention Program, Case Comprehensive Cancer Center, Cleveland, OH, USA
| | - Virginia Díez-Obrero
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health, Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
- Oncology Data Analytics Program, Catalan Institute of Oncology, Barcelona, Spain
| | - Matthew Devall
- Center for Public Health Genomics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
| | - Ferran Moratalla-Navarro
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health, Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
- Oncology Data Analytics Program, Catalan Institute of Oncology, Barcelona, Spain
| | - Juan Fernandez-Tajes
- Edinburgh Cancer Research Centre, Institute of Genomics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Claire Palles
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Kitty Sherwood
- Edinburgh Cancer Research Centre, Institute of Genomics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Sarah E W Briggs
- Department of Public Health, Richard Doll Building, University of Oxford, Oxford, UK
| | - Victoria Svinti
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Kevin Donnelly
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Susan M Farrington
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - James Blackmur
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Peter G Vaughan-Shaw
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Yingchang Lu
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Peter Broderick
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - James Studd
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - Tabitha A Harrison
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - David V Conti
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Fredrick R Schumacher
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Marilena Melas
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Nationwide Children's Hospital, Columbus, OH, USA
| | - Gad Rennert
- Clalit National Cancer Control Center, Haifa, Israel
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Mireia Obón-Santacana
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health, Madrid, Spain
- Oncology Data Analytics Program, Catalan Institute of Oncology, Barcelona, Spain
| | - Vicente Martín-Sánchez
- Consortium for Biomedical Research in Epidemiology and Public Health, Madrid, Spain
- Biomedicine Institute, University of León, León, Spain
| | - Jae Hwan Oh
- Center for Colorectal Cancer, National Cancer Center Hospital, National Cancer Center, Gyeonggi-do, South Korea
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Gyeonggi-do, South Korea
| | - Sun Ha Jee
- Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Keum Ji Jung
- Department of Epidemiology and Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, South Korea
| | - Sun-Seog Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea
| | - Min-Ho Shin
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea
| | - Aesun Shin
- Cancer Research Institute, Seoul National University, Seoul, South Korea
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon-Ok Ahn
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong-Hyun Kim
- Department of Social and Preventive Medicine, Hallym University College of Medicine, Okcheon-dong, South Korea
| | - Isao Oze
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Wanqing Wen
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Keitaro Matsuo
- Department of Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Koichi Matsuda
- Laboratory of Clinical Genome Sequencing, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Tokyo, Japan
| | - Chizu Tanikawa
- Laboratory of Genome Technology, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Zefang Ren
- School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yu-Tang Gao
- State Key Laboratory of Oncogenes and Related Genes and Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wei-Hua Jia
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
- Department of Epidemiology, School of Public Health and Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Mark A Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
| | - Aung Ko Win
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
| | - Rish K Pai
- Department of Laboratory Medicine and Pathology, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Jane C Figueiredo
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Robert W Haile
- Division of Oncology, Department of Medicine, Cedars-Sinai Cancer Research Center for Health Equity, Los Angeles, CA, USA
| | - Steven Gallinger
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Michael O Woods
- Division of Biomedical Sciences, Memorial University of Newfoundland, St. John, ON, Canada
| | - Polly A Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- School of Public Health, University of Washington, Seattle, WA, USA
| | - David Duggan
- City of Hope National Medical Center, Translational Genomics Research Institute, Phoenix, AZ, USA
| | | | - Richard Kaplan
- MRC Clinical Trials Unit, Medical Research Council, Cardiff, UK
| | - Rachel Kerr
- Department of Oncology, University of Oxford, Oxford, UK
| | - David Kerr
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Iva Kirac
- Department of Surgical Oncology, University Hospital for Tumors, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
| | - Jan Böhm
- Department of Pathology, Central Finland Health Care District, Jyväskylä, Finland
| | | | - Pekka Jousilahti
- Department of Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Paul Knekt
- Department of Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Lauri A Aaltonen
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | - Harri Rissanen
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Eero Pukkala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
- Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Helsinki, Finland
| | - Johan G Eriksson
- Folkhälsan Research Centre, University of Helsinki, Helsinki, Finland
- Human Potential Translational Research Programme, National University of Singapore, Singapore, Singapore
- Unit of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tatiana Cajuso
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | - Ulrika Hänninen
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | - Johanna Kondelin
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | - Kimmo Palin
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | - Tomas Tanskanen
- Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | | | - Satu Männistö
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Stephanie J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Edward Ruiz-Narvaez
- Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Julie R Palmer
- Department of Medicine, Boston University School of Medicine, Boston, MA, USA
- Slone Epidemiology Center at Boston University, Boston, MA, USA
| | - Daniel D Buchanan
- Colorectal Oncogenomics Group, Department of Clinical Pathology, University of Melbourne, Parkville, VIC, Australia
- Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, VIC, Australia
- University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, Parkville, VIC, Australia
| | - Elizabeth A Platz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kala Visvanathan
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Cornelia M Ulrich
- Huntsman Cancer Institute and Department of Population Health Sciences, University of Utah, Salt Lake City, UT, USA
| | - Erin Siegel
- Cancer Epidemiology Program, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Stefanie Brezina
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Vienna, Austria
| | - Andrea Gsur
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Vienna, Austria
| | - Peter T Campbell
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, New York, NY, USA
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
- University Medical Centre Hamburg-Eppendorf, University Cancer Centre Hamburg, Hamburg, Germany
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center and National Center for Tumor Diseases, Heidelberg, Germany
- German Cancer Consortium, German Cancer Research Center, Heidelberg, Germany
| | - Martha L Slattery
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - John D Potter
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Research Centre for Hauora and Health, Massey University, Wellington, New Zealand
| | - Kostas K Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
| | - Marc J Gunter
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Neil Murphy
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Antoni Castells
- Gastroenterology Department, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, University of Barcelona, Barcelona, Spain
| | - Sergi Castellví-Bel
- Gastroenterology Department, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, University of Barcelona, Barcelona, Spain
| | - Leticia Moreira
- Gastroenterology Department, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, University of Barcelona, Barcelona, Spain
| | - Volker Arndt
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Anna Shcherbina
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - D Timothy Bishop
- Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - Graham G Giles
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC, Australia
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC, Australia
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Melissa C Southey
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC, Australia
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, VIC, Australia
| | - Gregory E Idos
- Department of Medical Oncology and Center For Precision Medicine, City of Hope National Medical Center, Duarte, CA, USA
| | - Kevin J McDonnell
- Clalit National Cancer Control Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Department of Medical Oncology and Center For Precision Medicine, City of Hope National Medical Center, Duarte, CA, USA
| | - Zomoroda Abu-Ful
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
| | - Joel K Greenson
- Clalit National Cancer Control Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Katerina Shulman
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
| | - Flavio Lejbkowicz
- Clalit National Cancer Control Center, Haifa, Israel
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Clalit Health Services, Personalized Genomic Service, Lady Davis Carmel Medical Center, Haifa, Israel
| | - Kenneth Offit
- Clinical Genetics Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Yu-Ru Su
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
| | - Robert Steinfelder
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Temitope O Keku
- Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, NC, USA
| | - Bethany van Guelpen
- Department of Radiation Sciences, Oncology Unit, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | | | - Heather Hampel
- Division of Human Genetics, Department of Internal Medicine, Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Rachel Pearlman
- Division of Human Genetics, Department of Internal Medicine, Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Sonja I Berndt
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Richard B Hayes
- Division of Epidemiology, Department of Population Health, New York University School of Medicine, New York, NY, USA
| | - Marie Elena Martinez
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA
- Population Sciences, Disparities and Community Engagement, University of California San Diego Moores Cancer Center, La Jolla, CA, USA
| | | | - Paul D P Pharoah
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Susanna C Larsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yun Yen
- Taipei Medical University, Taipei, Taiwan
| | - Heinz-Josef Lenz
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Emily White
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington School of Public Health, Seattle, WA, USA
| | - Li Li
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - Kimberly F Doheny
- Center for Inherited Disease Research, Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elizabeth Pugh
- Center for Inherited Disease Research, Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tameka Shelford
- Center for Inherited Disease Research, Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrew T Chan
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Marcia Cruz-Correa
- Comprehensive Cancer Center, University of Puerto Rico, San Juan, Puerto Rico
| | - Annika Lindblom
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - David J Hunter
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Amit D Joshi
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Clemens Schafmayer
- Department of General Surgery, University Hospital Rostock, Rostock, Germany
| | - Peter C Scacheri
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Anshul Kundaje
- Department of Genetics, Stanford University, Stanford, CA, USA
- Department of Computer Science, Stanford University, Stanford, CA, USA
| | - Robert E Schoen
- Department of Medicine and Epidemiology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Jochen Hampe
- Department of Medicine I, University Hospital Dresden, Technische Universität Dresden, Dresden, Germany
| | - Zsofia K Stadler
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Medicine and Biomedical Center in Pilsen, Charles University, Pilsen, Czech Republic
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ludmila Vodickova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Medicine and Biomedical Center in Pilsen, Charles University, Pilsen, Czech Republic
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Veronika Vymetalkova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Medicine and Biomedical Center in Pilsen, Charles University, Pilsen, Czech Republic
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Christopher K Edlund
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - W James Gauderman
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - David Shibata
- Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Amanda Toland
- Departments of Cancer Biology and Genetics and Internal Medicine, Comprehensive Cancer Center, Ohio State University, Columbus, OH, USA
| | - Sanford Markowitz
- Departments of Medicine and Genetics, Case Comprehensive Cancer Center, Case Western Reserve University and University Hospitals of Cleveland, Cleveland, OH, USA
| | - Andre Kim
- Department of Preventive Medicine, USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Franzel van Duijnhoven
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
| | - Edith J M Feskens
- Division of Human Nutrition, Wageningen University and Research, Wageningen, The Netherlands
| | - Lori C Sakoda
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Manuela Gago-Dominguez
- Genomic Medicine Group, Galician Public Foundation of Genomic Medicine, Servicio Galego de Saude, Santiago de Compostela, Spain
- Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, Spain
| | - Alicja Wolk
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Barbara Pardini
- Candiolo Cancer Institute FPO-IRCCS, Candiolo, (TO), Italy
- Italian Institute for Genomic Medicine, Candiolo Cancer Institute FPO-IRCCS, Candiolo, (TO), Italy
| | - Liesel M FitzGerald
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, VIC, Australia
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Soo Chin Lee
- National University Cancer Institute, Singapore, Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Shuji Ogino
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cancer Immunology Program, Dana-Farber Harvard Cancer Center, Boston, MA, USA
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Stephanie A Bien
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Charles Kooperberg
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Christopher I Li
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Yi Lin
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Ross Prentice
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Conghui Qu
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Stéphane Bézieau
- Service de Génétique Médicale, Centre Hospitalier Universitaire Nantes, Nantes, France
| | - Taiki Yamaji
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Norie Sawada
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | - Motoki Iwasaki
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, National Cancer Center, Tokyo, Japan
| | | | - Anna H Wu
- Preventative Medicine, University of Southern California, Los Angeles, CA, USA
| | - Chenxu Qu
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Caroline E McNeil
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | | | - Caroline Hayward
- MRC Human Genetics Unit, Institute of Genomics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Ian J Deary
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Sarah E Harris
- Lothian Birth Cohorts group, Department of Psychology, University of Edinburgh, Edinburgh, UK
| | - Evropi Theodoratou
- Centre for Global Health, Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Stuart Reid
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Marion Walker
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Li Yin Ooi
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Department of Pathology, National University Hospital, National University Health System, Singapore, Singapore
| | - Ken S Lau
- Epithelial Biology Center and Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Hongyu Zhao
- Department of Biostatistics, Yale School of Public Health, New Haven, CT, USA
- Department of Genetics, Yale School of Medicine, New Haven, CT, USA
- Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA
| | - Li Hsu
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Biostatistics, School of Public Health, University of Washington, Seattle, WA, USA
| | - Qiuyin Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Malcolm G Dunlop
- Colon Cancer Genetics Group, Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Stephen B Gruber
- Department of Medical Oncology and Center For Precision Medicine, City of Hope National Medical Center, Duarte, CA, USA
| | - Richard S Houlston
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - Victor Moreno
- Colorectal Cancer Group, ONCOBELL Program, Bellvitge Biomedical Research Institute, Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health, Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
- Oncology Data Analytics Program, Catalan Institute of Oncology, Barcelona, Spain
| | - Graham Casey
- Center for Public Health Genomics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Ian Tomlinson
- Edinburgh Cancer Research Centre, Institute of Genomics and Cancer, University of Edinburgh, Edinburgh, UK
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, Nashville, TN, USA.
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El-Sayed C, Yiu A, Burke J, Vaughan-Shaw PG, Todd J, Lin P, Kasmani Z, Munsch C, Rooshenas L, Campbell M, Bach SP. Correction to: Measures of performance and proficiency in robotic assisted surgery: a systematic review. J Robot Surg 2024; 18:163. [PMID: 38578548 DOI: 10.1007/s11701-024-01864-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Affiliation(s)
- Charlotte El-Sayed
- Robotics and Digital Surgery Initiative, Royal College of Surgeons England, London, England, UK.
- NHSE Technology Enhanced Learning, London, UK.
- Institute of Cancer and Genomics, University of Birmingham, Birmingham, UK.
| | - A Yiu
- Guys' and St Thomas NHS Foundation Trust, London, UK
| | - J Burke
- Leeds Institute Medical Research, University of Leeds, Leeds, UK
| | | | - J Todd
- Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - P Lin
- Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - Z Kasmani
- Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - C Munsch
- NHSE Technology Enhanced Learning, London, UK
| | - L Rooshenas
- Population Health Science, Bristol Medical School, University of Bristol, Bristol, UK
| | - M Campbell
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - S P Bach
- Robotics and Digital Surgery Initiative, Royal College of Surgeons England, London, England, UK
- Institute of Cancer and Genomics, University of Birmingham, Birmingham, UK
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Avellaneda N, Al Masri M, Baimakhanov A, Balasubramaniam D, Bhangu A, Bouchagier K, Bozbiyik O, Carpelan A, Chwat C, Cunha M, Dawson BE, Mallen MVD, Ellebæk MB, Gonzalez TE, Elshami M, Fakhradiyev I, Ozkan OF, Fleres F, Futaba K, Gallo G, Ghosh D, Glasbey JC, Harrison E, Hooper RL, Jain R, Kamarajah S, Veetil SK, Kamer E, Keatley J, Knowles CH, Kulimbet M, Lal P, Li E, Polamreddy BM, Minaya-Bravo A, Mittal R, Morton DG, Nadal LRM, Negoi I, Nepogodiev D, Omar O, Pata F, Pinkney T, Potter MA, Rottoli M, Santos G, Smith I, Spinelli A, Venn M, Hooper R, Morton D, Bywater E, Evans J, Magill L, McKay S, Bordom DO, Simões J, Venn ML, Adeyeye A, Avellaneda N, Buchs N, Cato L, Finch D, Umar GI, Bravo AM, Junior HM, Neary P, Poskus T, Roslani A, Samadov E, Sbaih M, Shalaby M, Singh B, Sinha A, Vardanyan A, Chaudhry S, Frasson M, Millward J, Sánchez-Guillén L, Stijns J, Zimmerman DDE, Beard D, Campbell M, Moug S, Aytac E, Blackwell S, Buchwald P, Chowdhury SM, Dardanov D, Dulskas A, Elhadi M, El-Hussuna A, Garoufalia Z, Aslam MI, Kelly M, Knowles C, Mendes B, Ng S, Pellino G, Sebastian S, Sivrikoz E, Tejedor P, Vaizey C, Bianchi R, Christensen P, Lee SH, Lohsiriwat V, Mantoo SK, Mazlan L, Um JW, Wang JY, Watanabe J, Yao H, Bengueddach A, Tidjane A, Tabeti B, Behilil C, Boudjenan-Serradj N, Bensafir S, Meharzi SEI, Aissat A, Ghouali AK, Larabi K, Riffi O, Kacimi SEO, Mesli SN, Rezoug W, Mitidieri A, José A, Pablo C, Rodriguez CA, Panettiere MF, Barbalace N, Juan T, Lucena J, Houdin A, Fernandez E, Lococo J, Pedro L, Loban M, Vecchio P, Grinblat A, Carrie A, Veracierto F, Santillan M, Napolitano M, Rosa SL, Gonzalez CM, Ferro E, Muñoz JP, Ventorutti T, Cabrera C, Carrizo C, Mospane C, Leiro F, Espino J, Trama M, Potolicchio A, Dindri F, Buey L, Lucas N, Catalano P, Astilleta R, Quiroga Y, Valli D, Alexandre F, Martres G, Rosato G, Lemme G, Romero V, Doniquian AM, Pachajoa DAP, Llahi F, Fiorenza JM, Parodi M, Ocaña N, Gallardo A, Valenzuela A, Perriello J, Nador R, Fermani C, Garay L, Blanco P, Villalobos S, Posner F, Vieyra N, Fiorito P, Ciabattari P, de Kort C, Daryanani D, Smit J, Gosselink MP, Janssen N, Feiss A, Lee CHA, Taylor D, Edington J, Chen N, Ong WM, Aigner F, Moitzi G, Gemes G, Braumille M, Mitteregger M, Gerald S, Uranitsch S, Belarmino A, Waha J, Kahn J, Treiber M, Schemmer P, Mikalauskas S, Ibrahimli A, Orujova E, Namazov I, Alikhanli J, Asgarov M, Kutkut A, Almahmeed E, Aljawder H, Juma I, Johnston K, Saeed MF, Khairi S, Matovic E, Omerasevic M, Delibegovic S, Hodzic S, Rudell AG, Fuzari J, Farah JF, Dos Santos MBA, Lupinacci RA, Pereira TS, da Silveira Sete A, Filho AL, de Souza Pires BL, de Queiroz FL, Amaral HAT, Dos Santos MAM, de Miranda Silvestre SC, Hanan B, Reis C, Cassia G, da Luz M, Delgado M, Campanati R, Silva R, Bomfa-Barbosa A, Alves BC, Costa BXM, Cortes BGW, Lemos FHT, Arreguy-Borges K, Silva TB, Assis A, Freitas AH, Rezende D, Silva H, Alvarenga I, Cascais R, Silva T, Pinto H, Silva I, Leite L, Massahud M, Meyer M, Tibúrcio R, Martinez CAR, Espinha DR, Marson FAL, de Oliveira Góes IA, de Souza Artioli LM, Boschiero MN, Takahashi CY, de Oliveira FG, Junior HFL, de Oliveira JCC, Dos Santos JM, Gerber MT, Erdmann TR, Barbosa A, Fernandes A, Júnior AN, Júnior HM, Moreira J, Ribeiro M, Moreira P, Carvalho A, Santos B, Fidelis F, Cruz I, Codes L, Aibe R, Boudoux S, Favacho BC, Pinto F, Gava G, Pivati IR, Vilain LF, Kim N, Nunes RL, Dimitrov D, Peneva K, Karamanliev M, Dimitrova S, Ivanov T, Atanasov B, Dzharov G, Shtereva M, Slavchev M, Belev N, Krastev P, Arabadzhiev A, Tonova D, Tzoneva D, Sokolov M, Gribnev P, Maslyankov S, Pavlov V, Bakmaz B, Dijan E, Ćoza I, Mihanovic J, Kučić J, Sulen N, Katušić Z, Hudáček K, Farkašová M, Marková M, Grolich T, Kala Z, Pazdírek F, Hoch J, Filipová L, Kocián P, Přikryl P, Høgn A, Møller B, Slot DK, Bælum JK, Cour KL, Eriksen ND, Mahmoud A, Abdellatif A, Nafea A, Ewedah M, Soliman M, Yakout N, Argawy O, Sallam I, Kamel I, Sherif M, Ashmawy S, Ali A, Saad M, Ahmed M, Mohamed M, Mohamed N, Mahmoud S, Mahmoud S, Rashed AM, Abd-Errazik MA, Ammar MA, Mohammed R, Ebrahem A, Abd El Aal A, Abdou K, Wagdy M, Qassem M, Taha M, El-Wafa YA, Shehta A, El Metwally A, Hamed H, Ali MA, Elrefai M, El Sorogy M, Abdelkhalek M, Ragab A, Refky B, Metwally IH, Abdelkhalek M, Kamal M, Zuhdy M, Shetiwy M, Sakr A, Elfallal A, Elfeki H, Eldakroury I, Elbahrawy K, Mostafa M, Emile S, Tessema A, Tasew A, Gezahegn H, Bekele K, Belay M, Gudisa Z, Teferu Z, Väyrynen A, Kechagias A, Turunen A, Katunin J, Parhiala M, Pengerma P, Lahti P, Vihervaara H, Huhtinen H, Pasonen J, Heino R, Pakarinen S, Falenius V, Pinard B, Nobile C, Duchalais E, Drissi F, Meurette G, Podevin J, Lepenndu M, Hoetzel A, Jud A, Jauch D, Stefan FF, Neeff H, Holzner P, Nguyen P, Ryl A, Kehl F, Pullig F, Baral J, Münch S, Fütterer C, Reißfelder C, Sandra-Petrescu F, Herrle F, Hardt J, Lamm L, Seyfried S, Gharbi A, Aydin F, Stavrou G, Sperber J, de Deken J, Schwarzkopf K, Widyaningsih R, Polidorou A, Mpakas A, Tokidis E, Loun L, Petropoulou T, Balalis D, Korkolis D, Manatakis D, Assimakopoulou E, Bourazani M, Gklavas A, Kalamara E, Papaconstantinou I, Theodoraki K, Chardalias L, Konstadoulakis M, Theodosopoulos T, Soulioti E, Kavezou F, Filippou J, Papadoliopoulou M, Michalopoulos N, Vassiliu P, Sidiropoulos T, Charakopoulou A, Panagiotou A, Kokkinakis K, Lambridi E, Psarologos M, Maria S, Giannaraki S, Kapiris S, Triantafyllou A, Theodoropoulos C, Matthaiou G, Westzaan N, Etelka S, Triantafyllou T, Schizas D, Mpaili E, Karydakis L, Mpoura M, Danassi D, Karavokyros I, Dimitriou N, Livanou X, Kikira A, Tsourouflis G, Tomara NK, Nikiteas N, Dorovinis P, Tsiotos G, Stamou K, Kocka N, Ballian N, Kalakonas S, Athanasakis E, Chrysos E, Xynos E, Tsiaoussis J, Papadaki K, Xenaki S, Nyktari V, Sarakatsianou C, Bompou E, Arnaoutoglou E, Tzovaras G, Baloyiannis I, Mamaloudis I, Perivoliotis K, Apostolidi E, Mulita F, Karpetas G, Maroulis I, Vailas M, Petra A, Kontis E, Kaouras E, Katsaros I, Katsiaras L, Manikis P, Papadopoulou T, Papadopoulos A, Manioti E, Zeringa G, Katsinelis I, Mouzakis O, Kouki P, Nikolaou V, Marinis A, Alexopoulou K, Papadaki M, Vederaki SA, Samara A, Giakoustidis D, Christodoulidis G, Bareka M, Chatzikomnitsa P, Tsigara S, Papadopoulos V, Zarzava E, Anestiadou E, Lydia L, Apostolakidou M, Ioannidis O, Simeonidis S, Mpitsianis S, Tam PTH, Ng SSM, Lau VNM, Tse WK, Bánky B, Dolhai E, Horváth É, Golub J, Marton J, Lakatos L, Suszták N, Maurya AP, Kumawat H, Saxena P, Lather R, Waindeskar V, Khanduri A, Goyal L, Gupta R, Singh S, Saksena AR, Rayani BK, Kasula J, Raju K, Shah MM, Thammineedi SR, Patnaik SC, Rathod D, Poonia DR, Vishnoi JR, Sharma N, Byshetty R, Yadav RK, Misra S, Dhali A, Dhali GK, Biswas J, Ray S, Ghose T, Pipara A, Singh HM, Roy MK, Desai N, Thambudorai R, Ishwarappagol V, Chaturvedi A, Verma D, Akhtar N, Gupta S, Rajan S, Tiwari T, Kumar V, Mahajan A, Jain D, Liddle D, Jyoti J, Haque PD, Prem W, Lakshminarayana B, S BV, Poojary PH, Bhat RRK, Mathew S, Gupta L, Bains L, Kumar M, Singh N, Sharma A, Kumar A, Garg L, Aggarwal M, Jakhar R, Kumar A, Bose B, Huda F, Thakur N, Dhar P, Seenivasagam RK, Prakash S, Chaudhari A, Shukla A, Mahakalkar C, Saxena G, Mahuli K, Kaple M, Kshirsagar S, Mehraj A, Parray F, Aziz G, Chowdri N, Wani R, Gurcoo S, Shah Z, Madhavan S, Subbarayan S, Vino S, Aravindan U, George G, Ck H, Yadev IP, Chisthi M, Ps R, Sreekumar RC, Vijayan V, Theodore B, Victor C, Jesudason MR, Arulappan N, Philip R, Durai S, Creavin B, Cullinane C, Davis C, Flynn C, Liam D, Cooke F, Earley H, Peter M, Hamilton V, Trani AD, Conversano I, Cianci P, Petta R, Picciariello A, Altomare DF, Martines G, Grasso S, Moffa S, Papagni V, Zanoni A, Belvedere A, Romano A, Croce GD, Tanzanu M, Cardelli S, Lauro A, Sartarelli L, Binetti M, Cervellera M, Tonini V, Sanna B, Pusceddu E, Runfola M, Manunza R, Pisanu A, Cois A, Frongia F, Esposito G, Podda M, Mura P, Marzella A, Scotto B, Cuneo D, Ascari F, Giulino G, Varoli M, Laquatra N, Fortunato C, Marino F, Perrone F, Pace M, Convertini O, Cutellè C, Ammerata G, Sena G, Pignataro M, Scozzafava M, Mazza M, Bruni A, Curro G, Hila J, Ammendola M, Curcio S, Signorelli V, Marano A, Sasia D, Borghi F, Giuffrida MC, Bonardello M, Palmisano S, Testa V, Porta A, Scaltrini F, Iacob G, Gaspa I, Guatteri L, Coladonato M, Zapparoli A, Pesce A, Feo CV, Pindozzi F, Bigoni I, Torchiaro M, Fabbri N, Cianchi F, Staderini F, Elena F, Coratti F, Barbato G, Fortuna L, Romagnoli S, Bergamini C, Villa G, Cecchini I, Martellucci J, Izzo M, Trafeli M, Scheiterle M, Manoocheehri F, Cagnazzo F, Spampinato MG, Adam N, Depalma N, D'Ugo S, Garritano S, Mazzeo C, Cucinotta E, Melita F, Viscosi F, Biondo SA, Tripodi VF, Foppa C, Greco M, Sacchi M, Carvello M, Deac V, Laurenti V, Frontali A, Zappone A, Cammarata F, Colombo F, Ferrario L, Currà MC, Danelli P, Vignali A, Umberto C, Mastriale F, Riccardo R, Turi S, Elmore U, Galimberti A, Ceretti AP, Vespo D, Opocher E, Longhi M, Mariani NM, Flandoli C, Ciulli C, Vaira G, Ripamonti L, Cigagna L, Oldani M, Tamini N, Palumbo A, Castaldi A, Antropoli C, Rupealta N, Palmiero N, Donatiello V, Novi A, Cappiello A, Bianco F, de Luca M, Incollingo P, Esposito R, Gili S, Aprea G, de Simone G, Palomba G, Capuano M, Basile R, D'Angelo S, Tropeano FP, Luglio G, Pagano G, de Palma GD, Cricrì M, Milone M, Manigrasso M, Anoldo P, Boccia G, Raiano G, Nuzzo MMD, Calabria M, Peltrini R, Castiglioni S, Bracale U, Cervone C, Rega D, Caliendo D, Benetti E, Delrio P, Guarino R, de Franciscis S, Coppolino F, Romano FM, Selvaggi F, Sciaudone G, Selvaggi L, de Stefano M, Resendiz A, Carosso F, Degiuli M, Salusso P, Reddavid R, Benetti S, Callari C, Miceli DD, Pardo D, Sabatino G, Licari L, Lirosi MC, Sorce V, Peri A, Mori A, Pugliese L, Filardo M, Nuccio P, Dominioni T, Massimo C, Giuseppina F, Angelo F, Raffaele G, Michele M, Roberto P, Mondini A, Muratore A, Valentino C, Calabro' M, Danna R, Cremonini C, Sbarbaro C, Tartaglia D, Coccolini F, Chiarugi M, 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K, Arakawa S, Asano Y, Alawneh F, Rajab I, Ramadan M, Masri MA, Qaisi MA, Alsamneh M, Mubaidin O, Al-Jarrah A, Ababneh H, Khdair K, Tawarh T, Sabri W, Arida ZA, Dzhumabekov B, Klyshbayeva D, Ispbayeva K, Nadyrov M, Tanabayeva S, Saliev T, Jumanov A, Aitbaeva A, Arynov A, Nadyrov M, Maulenov N, Dushimova Z, Park EJ, Kim H, Kang J, Baik SH, Song Y, Kwak HD, Kim J, Son JH, Chung JS, Lee H, Baek JH, Nam KH, Lee KC, Lee WS, Jeon Y, Kim CW, Park SE, Son GM, Ahn HM, Lee IY, Kim TK, Pcolkins A, Sivins A, Lobovs D, Ancans G, Kreice I, Budnikova I, Jelovskis I, Emhareb A, Abaidalla A, Hammed A, Khairallah M, Jibreel SS, Mohmmad WAS, Hasan W, Venskutonis D, Daugėla E, Dainius E, Juočas J, Kutkevičius J, Vaitkutė K, Bradulskis S, Macas A, Pauzas H, Jokubauskas M, Lizdenis P, Budrikienė R, Svagzdys S, Saladzinskas Z, Volkoviene G, Makauskiene J, Kuliavas J, Bernotaite V, Danys D, Kontrimaviciute E, Poskus E, Kryzauskas M, Jakubauskas M, Jotautas V, Zakaria AD, Kai MWP, Zainy RHM, Tan SS, Zain WZW, Zakaria Z, Yusoff ZM, Raduan F, Sagap I, Razali NYF, Rahman NA, Kanthan SBC, Nie YC, Azman ZAM, Ang CW, Tang CY, Poh KS, Ng K, Hashim NM, Xavier R, Khong TL, Amir AS, Ali CSC, Yew CK, Henry F, Muniandy J, Baharom S, Eng SCR, Hu FSM, Amin-Tai H, Jabar MF, Satar MHSA, Fathi NQ, Rao PS, Podesta AMC, Cini C, Psaila J, Debono M, Sammut M, Spiteri N, Andrejevic P, Muro AG, Leon BP, Perez JAV, Quiñonez JRA, Vera MTR, Gutierrez VMM, Bobadilla BJ, Martinez CM, de León Rendón JL, Hererro JAV, Cuichan MVY, Baez NF, Prevost PG, Hoyos-Torres A, Ruiz-Muñoz EA, Alvarez-Bautista FE, Ortíz-Méndez G, Zamudio-Bautista JL, Salgado-Nesme N, Vergara-Fernández O, Sanchez-Valdivieso E, Martinez G, Navarrete-Aleman J, Perez-Arellano J, Maldonado-Barron R, Hernandez-Krauss R, Ousadden A, Benjelloun EB, Bzikha I, Ibnmajdoub K, Mazaz K, Marghich O, Touzani S, Benkabbou A, Souadka A, El Ahmadi B, Zaari F, Laamri I, Majbar MA, Mohsine R, Van CB, Seuren D, Gillissen F, Aarts F, Konsten J, Van MH, Schlooz S, Naiqiso A, Merrie A, Varghese C, Pugh F, Bissett I, Wilson K, Mitchell S, Dawson C, Hill C, Wright D, Hubley S, Lin A, Jones D, Siggins L, Fagan P, Wu S, Ekwesianya A, Nwoye C, Agara D, Ejiofor G, Sundaynweke N, Kwentoh N, Ewah R, Aremu A, Ballah A, Ningi A, Ohia E, Mienda I, Aliyu M, Oloko N, Okunlola A, Abiyere H, Bolanle OE, Babatunde O, Fatudimu S, Orewole T, Mba EL, Felix MS, Abdulfatah M, Ibrahim N, Masoro U, Fakoya A, Irabor D, Anyadike F, Ulasi I, Orji M, Afuwape O, Ayandipo O, Aremu I, Adegboye K, Gbadegesin P, Aminu B, Aghadi IK, Makama JG, Joshua S, Kache SA, Sheshe AA, Bala AM, Garzali IU, Abdullahi MMM, Muhammad N, Umar NA, Muhammad S, Okoye A, Emegoakor C, Nwosu C, Egwuonwu OA, Ekwunife O, Amadigwe R, Ojiakor S, Akere A, Okereke C, Olaleye O, Ige O, Olubayo O, Olatiilu T, Idris M, Shehu A, Oluyori D, Nwabuoku E, Ukwubile L, Bashir M, Daniyan M, Rauf H, Ali M, Zakaria M, Hameed M, Amanullah N, Chawla T, Waqar U, Jamal A, Butt A, Kerawala A, Samson S, Dodhy AA, Gill AJ, Malik A, Ali D, Mohsin H, Afzal MF, Batool S, Suleman A, Khalid J, Zafar M, Dilawar M, Janjua MH, Sarwar MZ, Naqi SA, Akbar A, Afzal A, Anwar J, Gondal KM, Shaukat M, Waheed M, Sohail M, Mukhtiar N, Ammar AS, Hussain A, Khan AN, Sarwar A, Khan I, Khattak S, Oqaili B, Saada B, Zatari D, Jubran F, Hamdan F, Emar M, Alawi R, Jacome G, Insturain I, Arauz J, Hurtado M, Beron RI, Castaño R, Cao VHB, Kwiatkowski A, Dobkowski G, Bartosiak K, Walędziak M, Możański M, Zadrożna M, Kowalewski P, Fiedziuk A, Wątroba A, Los A, Sitarska M, Rząca M, Zawadzki M, Czarnecki R, Tavares C, Santos F, Borges F, Real JC, Lima MJ, Carlos S, Pereira V, Pacheco A, Gomes G, Pimenta J, Elisiario L, Jervis M, Gonçalves V, Pedro V, Jordão D, Neves FR, Conceição L, Ângelo MD, Marques P, Saraiva RP, Caroço TV, Windels A, Machado A, Ribeiro C, Velez C, Oliveira J, Melo MR, Lima R, Pires A, Lareiro C, Martins R, Revez T, Martins A, Cardoso D, Alegre I, Estevão P, Andrade D, Gomes DC, Duarte MJ, Custódio P, Nemésio RA, Rodrigues S, Correia A, Domingos H, Herrando I, Azevedo J, Fernandez L, Azevedo P, Vieira P, Torre A, Amado A, Paiva M, Saraiva R, Costa S, Mendes T, Queirós T, Silva A, Faustino A, Freitas A, Mendes J, Amaral L, Quintanilha R, Silva R, Coelho AM, Ribeiro A, Pinto C, Ribeiro N, Reis R, Costa S, Fernandes V, Sanches A, Amorim E, Miguel I, Rachadell J, Sanches M, Oliveira S, Baptista V, Roxo A, Devesa H, Teslyak O, Barradas R, Marques S, Martins S, Pepino S, Silva A, Deus AC, Ferreira A, Marinho D, Sousa D, Martins MJ, Matias N, Pinto A, Correia D, Amado F, Cordeiro L, Morales M, Lamas M, Marçal S, Rodrigues AI, Santos A, Marçal A, Oliveira A, Gomes C, Ferreira C, Marques R, Chitul A, Alexandrescu C, Bezede C, Cristian D, Mandi D, Grama F, Ungureanu R, Stoica B, Diaconescu C, Ciubotaru C, Tanase I, Grintescu I, Negoita VM, Calin C, Simeanu C, Ciotarla DC, Caltea M, Mirica RM, Luca A, Pasca A, Vlad C, Bonci EA, Stefanescu I, Achimas-Cadariu PA, Gata VA, Capusan A, Petrisor C, Dindelegan G, Seicean R, Scurtu R, Bintintan V, Fagarasan V, Ionescu C, Crisan D, Zanc L, Ene-Cocis MV, Muresan MS, Mihalcea SM, Dudric V, Musina AM, Ristescu AI, Roata CE, Moglan M, Dimofte MG, Lunca S, Iacob S, Dychko A, Litvin A, Kapustina A, Provozina A, Anokhin E, Zabiyaka M, Shin A, Djumabayev K, Kuznetsova M, Gordeyev S, Kochkina S, Mamedli Z, Markaryan D, Galliamov E, Semina E, Agapov M, Malahov P, Garmanova T, Kakotkin V, Zaycev A, Sumbaev A, Bedzhanyan A, Orman E, Petrenko K, Bredikhin M, Frolova Y, Tulina I, Bashilkina O, Tsarkov P, Rodimov S, Stamov V, Balaban V, Alexnder A, Yanishev A, Rogozhev D, Yakunina N, Chubukova N, Nugmanov R, Karachun A, Petrov A, Domanskiy A, Panaiotti L, Smolina M, Sapronova T, Pelipas Y, Zagaynov E, Khrykov G, Davidovskaja L, Burlov N, Mankevich N, Tverdohlebova T, Bogatikov A, Lodygin AV, Krasnoselsky C, Vasiukova ES, Kopteyev NR, Ovchinnikov T, Kashchenko VA, Novikova A, Terentyeva E, Kuleshov O, Pavlov R, Koshel A, Kostromitsky D, Drozdov E, Klokov S, Camacho A, Khan FN, Bandar MA, Shamim R, Chowdhury S, Kovacevic B, Krdzic I, Zdravkovic M, Kenic M, Milentijevic M, Petkovic N, Radulovic R, Ngu J, Teo NZ, Singh PA, Ong SY, Li S, en Siew B, Chee C, Koh JJM, Lee KY, Tan KK, Wong SC, Loh W, Pujol AF, Rubio JC, Farrés LP, Vendrell LL, Del Olmo MIU, Pedregosa AB, Galmes C, Luckute D, Casanova D, Artigot M, Guedes X, Olivella Y, Sarda MS, Toscano MJ, Damieta MP, Pera M, Gonçalvez SA, Galvez ST, Ruiz SS, Espin-Basany E, Marinello F, Villarino-Villa L, Heras MVL, Martin-Sanchez R, Mata RM, Blanco-Colino R, Otero A, de Lacy AM, Sanahuja JM, Bravo R, Ferraz T, Gonzabay V, Gonzalez F, Menendez P, Del Castillo VCG, Lopez-Pelaez VM, Silva ÁS, Lillo-García C, Tauler EM, Manresa MCE, Pérez SL, Llopis SQ, Rubio AV, Castillo ER, Miramón FJJ, Rodriguez JLR, Rizo-Lamberti LA, Garrido PG, Carneros VJ, Alfonso BA, Sierra BG, Amador CG, Gomendio MDP, Palomino MVR, de La Plaza Llamas R, Cafranga EG, Ramos JLE, Estudillo MC, Pérez RE, Pernas RM, de Lebrusant Fernández S, Bautista WMS, Llamazares AL, Valbuena AL, Moran LA, Alvarez LJ, Raposo LG, Ceron SF, Calvo AC, Valcárcel CR, Peña JP, Gómez LMJ, Díez MC, Lindenbaum PD, Mata SK, Ruiz-De-La-Hermosa A, Abad-Motos A, Toribio-Combarro B, Ripollés-Melchor J, Fuenmayor-Valera ML, Ortega-Domene P, Loscos A, Del Pueblo CS, Dziakova J, Mugüerza JM, Carlin PS, Anula R, Mouvet Y, Forero-Torres A, Andrés BDS, Marcos CM, Rubio I, Pascual I, Yague J, Alcolea NG, Alonso A, Diéguez B, Ibañez I, Pérez JL, Losada M, García-Conde M, Hernández M, Blazquez-Martin A, Vera-Mansilla C, Mendoza-Moreno F, Hernandez-Salvan J, Diez-Alonso M, Hernandez-Juara P, Barrena-Blazquez S, Minaya-Bravo AM, Galván-Pérez A, Miguel-Méndez CS, Gonzalez-Gonzalez E, Alvarez-Díez M, García-Ureña MÁ, Llorente-Moreno M, Ruiz-Lozano C, Colás-Ruiz E, Pérez-Calvo J, Gomila-Sanso JA, Álvarez-Llano L, Serrano-Fuentes SC, Soto-Montesinos C, Dedeu-Bastardas I, Perez-Reche I, Labró-Ciurans M, Pardo-López S, Pérez EG, Fernández IO, Canals LO, Espino PC, Ruano PG, Ricardo V, Ros EP, Manuel EM, Buleje JAB, Prats MMC, Baños PAP, González PM, Celdrán RG, Pellicer-Franco EM, Valero-Navarro G, Vicente-Villena JP, Martinez-Mercader MM, Baeza-Murcia M, Mengual-Ballester M, Soria-Aledo V, Fernández-Martínez D, Varela-Rodríguez L, Garcia-Flórez LJ, Fernández-Hevia M, Gonzalez-Diaz MJ, Fernández-Arias S, Puertas CP, de San Pío Carvajal E, Cebolla ES, Brainsa E, Bayo JMM, Castro MC, Blanco RR, Gutierrez E, Pinto FL, Alegre JM, Flores N, ÓSullivan SN, Fernández BF, Alonso JE, Conde JGA, Ropero NM, Bayón RÁ, Dominguez SH, Ramirez S, Martin de Pablos A, Perez-Sanchez A, Cano-Matias A, Del-Rio-Lafuente FJ, Caballero-Delgado J, Valdes-Hernandez J, Gomez-Rosado JC, Martinez C, Cholewa H, Sancho-Muriel J, Alberola MJ, Navasquillo M, Primo V, Moreno V, Espí-Macías A, Moro-Valdezate D, Carrascosa-Morales I, Martín-Arévalo J, Soro-Domingo M, García-Botello S, Pla-Marti V, Abellán AM, Pérez CM, Cortés GFV, Blasco LF, Chornet MR, Martín RS, Diego ARD, Vázquez-Fernández A, Pascual A, de Andrés-Asenjo B, Beltrán de Heredia J, Ruiz-Soriano M, Rodríguez-Jiménez R, Iribarren EM, Rodríguez EVF, Del Carmen Casas García M, García-Señoráns MP, Valderrama ÓC, Rodríguez PF, Santos RS, Currás RP, Vigorita V, Roche CG, Delgado E, Lafuente F, Gascon I, Saudi S, Fraj V, Wickramasinghe D, de Zoysa I, Samarasekera N, Wickramarathne R, Dassanayake V, Balathayalan Y, de Silva D, Perera M, Pulleperuma S, Jayasekara S, Wijenayake W, Gunetilleke B, Abeysinghe N, Chandrasinghe P, Kumarage S, Abdalradiy AG, Widatalla ABH, Ahmed AY, Mohamed HA, Hamid HKS, Ali MH, Eldin SJ, Agger E, Jutesten H, Lindgren J, Lepsenyi M, Azhar N, Hansdotter P, Ekepil A, Lindén Å, Brandström G, Smedberg J, Schiffer E, Ris F, Longchamp G, Meyer J, Dupret L, Galetti K, Regusci L, Grischott M, Malugani M, Mouhandes AEF, Danial AK, Khayat M, Sbahi MHE, Marawy MK, Abdullah MA, Douba Z, Mansour A, Niazi A, Hamza A, Mohamad AH, Awead M, Mohammad S, Salloum S, Jabar AA, Zazo A, Shebli B, Ayoub K, Younes L, Bannoud MH, Zazo R, Saad A, Hamdan A, Wakkaf H, Adra L, Souliman M, Anton M, Hannouf S, Li KL, Cheng KI, Ji SJ, Hsieh YC, Parlak EA, Demir M, Kara U, Peker YS, Yiğit D, Unal N, Iflazoğlu N, Yalkin Ö, Topal S, Gulcu B, Ozturk E, Gümbelek G, Terkanlıoğlu S, Koklucan A, Ince G, Sen M, Isik O, Kural S, Akesen S, Yilmazlar T, Sungurtekin H, Sungurtekin U, Vural U, Ozgen U, Isik A, Onk D, Kurnaz E, Ozker TS, Ipek A, Ferlengez A, Erturk C, Tatar C, Sevik H, Akay O, Sensoy O, Hayirlioglu MB, Aktas S, Ozben V, Aliyeva Z, Mutlu AU, Gökay BV, Saraçoğlu C, Aytaç E, Gülmez M, Işık MÜ, Hacim A, Akbas A, Soyhan F, Turgut MA, Demirgan S, Meric S, Altinel Y, Baris B, Akova E, Kahraman E, Kucuk HF, Saracoglu KT, Kaya S, Lel S, Gurbulak EK, Caz E, Kostek M, Mihmanli M, Yazici P, Oba S, Kırkan EF, Ulgur HS, Kalın M, Dinkci MD, Duzgun O, Ozturk S, Zengin AK, Aşkar A, Şanlı AN, Erginöz E, Özçelik MF, Ergün S, Uludağ SS, Kara D, Yılmaz G, Sarıcı IŞ, Kara Y, Incesu A, Arican C, Atici SD, Kaya T, Gezer T, Kirmizi Y, Aydin G, Namdaroglu O, Adakaya S, Canda AE, Ozzeybek D, Coskun N, Sokmen S, Ozkardesler S, Bisgin T, Miftari A, Caliskan C, Akgun E, Avseren G, Deniz N, Yoldas T, Güreşin A, Zayakov G, Pösteki G, Utkan NZ, Tatar OC, Akçay Ö, Güler SA, Mantoğlu B, Demirel E, Akın E, Gonullu E, Altintoprak F, Palabıyık O, Bayhan Z, Ciftci AB, Colak E, Aybar E, Celik HK, Eraslan H, Yemez K, Ozbilgin SS, Senol S, Gultekin FA, Piskin O, Guler O, Karadere Y, Kakeeto A, Oguttu B, Sikakulya FK, Lule H, Rybachuk A, Shudrak A, Beznosenko A, Lisnyy I, Rozhkova V, Zvirych V, Alawlaqi D, El Jamali F, Balooshi IA, Ahmed M, Albers M, Ali NA, Church R, Dudas G, Wells J, Pavlova M, Sebastiani S, Paterson C, Kaushal M, Patel P, Panchal S, Handa S, Tezas S, Zaidi SN, Raj G, Wright J, Hallam S, Karandikar S, Gates Z, Marshall A, Thompson A, Tennakoon A, Rao M, Callan R, Tufail S, Rajendran G, Polisetty K, Husain N, Clarke N, Naranayanasamy S, Hallett A, Lorejo E, Ward N, Antakia R, Xanthis A, Simillis C, Tweedle E, Panagiotopoulou I, Grimes L, Mounstephen L, Bocancia R, Carden C, Lynch J, Noveros MS, Shaalan R, Khalil T, Marshall W, Hodge K, Balfour J, Mcintosh K, Buijs L, Yule M, Vaughan-Shaw PG, Smith S, Anderson T, Mcdermott FD, Daniels IR, Tapp J, Smart N, Rajaretnam N, Bethune R, Clark T, Delimpalta C, Liao C, Banham G, Induruwage L, Velchuru V, Lawrence A, Rahman A, Bennett J, Badawi M, Harshen R, Bhargava A, Gorrela K, Jumah M, Hanson M, Arya S, Atendido T, Shrestha A, Cook E, Rakhimov I, Collins J, Alamin N, Vigneswaran N, Basnyat P, Shamardal A, Chacko A, Wanshantha D, Bisheet G, Ebdewi H, Abdellatif M, Adu-Poku P, Tore A, Adams F, Allen K, Ahmed K, Kulkarni N, Chitnis A, Patel H, Magsino J, Sarodaya V, Minicozzi A, Dempsy C, Ahmed H, Jayasinghe JD, Okail MH, Thaha M, Hallworth S, Parmar C, Chua L, Pizanias M, Samin R, Young T, Sagar J, Yorkmui L, Cirocchi N, Ahmed S, Barreda SC, Kudchadkar S, Baker A, Jayasankar B, Jackson J, Abdelsaid K, Hassan M, Shetty S, Coldwell C, Davies E, Nader H, Raistrick M, Ryska O, Hawkin P, Raymond T, Witjes C, Van de Steen K, Crabtree N, Boyce S, Somera W, Woodward A, Ryan K, Kassai M, Aleem M, Ghosh A, Rixson D, Lewis E, Lynch N, Shovelton C, Zywicka E, Guest F, Barton J, Purnell R, Bamford R, Teare T, Adams B, Chmielewski G, Smith L, Connolly L, Niblett R, Singh A, Halliwell G, Paraoan M, Doree N, Asaad P, Kilbride C, Carpenter H, Wilson J, Fletcher J, Vijayagopal KA, Abbakar M, Zaimis T, Walsh A, Kubisz-Pudelko A, Nono J, Pippard L, Chowdhary M, Dalton R, Moussa T, Dominguez F, Solla G, Curbelo J, Laurini M, Viola M, Brito N, Al-Alnsi A, Al-Naggar H, Saryah L, Al-Shehari M, Alsayadi R, Al-Hutheifi R, Shream S, Saeed S, Spurring EM. Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries. Br J Surg 2024; 111:znad370. [PMID: 38029386 PMCID: PMC10771257 DOI: 10.1093/bjs/znad370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/10/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. METHODS The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. RESULTS A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P < 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). CONCLUSION Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov).
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Vaughan-Shaw PG, Evans MD. Neoadjuvant chemotherapy for advanced colonic cancer: standard of care or is the jury still out? Br J Surg 2023; 110:1565-1566. [PMID: 37724780 DOI: 10.1093/bjs/znad281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 09/21/2023]
Affiliation(s)
| | - Martyn D Evans
- Department of Colorectal Surgery, Morriston Hospital, Swansea Bay University Health Board, Swansea, UK
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Vaughan-Shaw PG, Joel AS, Farah M, Ofoezie F, Harji D, Liane M, Choudhary S, Royle JT, Holtham S, Farook G. Evaluation of an established colorectal robotic programme at an NHS district general hospital: audit of outcomes and systematic review of published data. Langenbecks Arch Surg 2023; 408:416. [PMID: 37874420 DOI: 10.1007/s00423-023-03152-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 10/11/2023] [Indexed: 10/25/2023]
Abstract
INTRODUCTION Robotic-assisted surgery (RAS) offers potential advantages over traditional surgical approaches. This study aimed to assess outcomes from a district general hospital (DGH) robotic colorectal programme against published data. MATERIALS AND METHODS The robotic programme was established following simulator, dry/wet lab training, and proctoring. We performed a case series analysing technical, patient, and oncological outcomes extracted from a prospective database of colorectal RAS cases (2015-2022). A registered systematic review (PROSPERO CRD42022300773; PubMed, Web of Science, EMBASE) of single-centre colorectal series from established robotic centres (n>200 cases) was completed and compared to local data using descriptive summary statistics. Risk of bias assessment was performed using an adapted version of the Cochrane ROBINS-I tool. RESULTS Two hundred thirty-two RAS cases were performed including 122 anterior resections, 56 APERs, 19 rectopexies, and 15 Hartmann's procedures. The median duration was 325 (IQR 265-400) min. Blood loss was < 100 ml in 97% of cases with 2 (0.9%) cases converted to open. Complications (Clavien-Dindo 3-5) occurred in 19 (8%) patients, with 3 (1.3%) deaths in < 30 days. Length of stay was 7 (IQR 5-11) days. In 169 rectal cancer cases, there were 9 (5.3%) cases with a positive circumferential or distal margin and lymph node yield of 17 (IQR 13-24). A systematic review of 1648 abstracts identified 13 studies from established robotic centres, totaling 4930 cases, with technical, patient, and oncological outcomes comparable to our own case series. CONCLUSIONS Outcomes from our robotic colorectal programme at a UK DGH are comparable with the largest published case series from world-renowned centres. Training and proctoring together with rolling audit must accompany the expansion of robotic surgery to safeguard outcomes.
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Affiliation(s)
| | - Abraham S Joel
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - Mohamed Farah
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - Frank Ofoezie
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - Deena Harji
- Manchester University NHS Foundation Trust, M13 9WL, Manchester, UK
| | - Maren Liane
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - Saif Choudhary
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - James T Royle
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - Stephen Holtham
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK
| | - Golam Farook
- Sunderland Royal Hospital, Kayll Rd, Sunderland, SR4 7TP, UK.
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Adisa A, Bahrami-Hessari M, Bhangu A, George C, Ghosh D, Glasbey J, Haque P, Ingabire JCA, Kamarajah SK, Kudrna L, Ledda V, Li E, Lillywhite R, Mittal R, Nepogodiev D, Ntirenganya F, Picciochi M, Simões JFF, Booth L, Elliot R, Kennerton AS, Pettigrove KL, Pinney L, Richard H, Tottman R, Wheatstone P, Wolfenden JWD, Smith A, Sayed AE, Goswami AG, Malik A, Mclean AL, Hassan A, Nazimi AJ, Aladna A, Abdelgawad A, Saed A, Abdelmageed A, Ghannam A, Mahmoud A, Alvi A, Ismail A, Adesunkanmi A, Ebrahim A, Al-Mallah A, Alqallaf A, Durrani A, Gabr A, Kirfi AM, Altaf A, Almutairi A, Sabbagh AJ, Ajiya A, Haddud A, Alnsour AAM, Singh A, Mittal A, Semple A, Adeniran A, Negussie A, Oladimeji A, Muhammad AB, Yassin A, Gungor A, Tarsitano A, Soibiharry A, Dyas A, Frankel A, Peckham-Cooper A, Truss A, Issaka A, Ads AM, Aderogba AA, Adeyeye A, Ademuyiwa A, Sleem A, Papa A, Cordova A, Appiah-Kubi A, Meead A, Nacion AJD, Michael A, Forneris AA, Duro A, Gonzalez AR, Altouny A, Ghazal A, Khalifa A, Ozair A, Quzli A, Haddad A, Othman AF, Yahaya AS, Elsherbiny A, Nazer A, Tarek A, Abu-Zaid A, Al-Nusairi A, Azab A, Elagili A, Elkazaz A, Kedwany A, Nuhu AM, Sakr A, Shehta A, Shirazi A, Mohamed AMI, Sherif AE, Awad AK, Abbas AM, Abdelrahman AS, Ammar AS, Azzam AY, Ciftci AB, Dural AC, Sanli AN, Rahy-Martín AC, Tantri AR, Khan A, Al-Touny A, Tariq A, Gmati A, Costas-Chavarri A, Auerkari A, Landaluce-Olavarria A, Puri A, Radhakrishnan A, Ubom AE, Pradhan A, Turna A, Adepiti A, Kuriyama A, Kassam AF, Hassouneh A, El-Hussuna A, Habeebullah A, Ads AM, Mousli A, Biloslavo A, Hoang A, Kirk A, Santini A, Melero AV, Calvache AJN, Baduell A, Chan A, Abrate A, Balduzzi A, Sánchez AC, Navarrete-Peón A, Porcu A, Brolese A, Barranquero AG, Saibene AM, Adam AA, Vagge A, Maquilón AJ, Leon-Andrino A, Sekulić A, Trifunovski A, Mako A, Bedada AG, Broglia A, Coppola A, Giani A, Grandi A, Iacomino A, Moro A, D’amico A, Malagnino A, Tang A, Doyle A, Alfieri A, Haynes A, Wilkins A, Baldwin A, Heriot A, Laird A, Lazarides A, O'connor A, Trulson A, Rokohl AC, Caziuc A, Triantafyllou A, Anesi A, Nikova A, Andrianakis A, Charalabopoulos A, Tsolakidis A, Chirca A, Arnaud AP, Narvaez-Rojas AR, Kavalakat A, Spina A, Recordare A, Annicchiarico A, Conti A, Mohammed AD, Kocataş A, Almhimid A, Arnaout A, Fahmy A, Mangi A, Modabber A, Ulas AB, Mohamedahmed AYY, Frontali A, Moynihan A, Yunus A, Ahmad A, Kent AJ, Khamees A, Ugwu AO, Turan A, Mohammed AAK, Navarro-Barrios A, Yebes A, De Sousa ÁFL, Moreno A, Sethi A, Dawson AC, Othman AAA, Kaur A, Wolde A, Antonelli A, Scifo A, Alhamad A, Davis A, Alderazi A, Harky A, Mohammed-Durosinlorun A, Seguya A, Okhakhu A, Chamakhi A, Sebai A, Souadka A, Asla A, Agrawal A, Persad A, Gupta A, Elgazar A, Kulkarni A, Coates A, Bellés AC, Hadzibegovic AD, Jotic A, Kowark A, Martins A, Pineda AM, Peral A, Gollarte AS, Senent-Boza A, Camarena AIA, Castaño-Leon AM, Bravo AMM, Moro AMG, Musina AM, Tapia-Herrero AM, Kothari A, Gupta A, Raja A, Aljaiuossi A, Taha A, Majbar AM, Prodromidou A, Kanatas A, Gupte A, Zakaria AD, Balla A, Barberis A, Bondurri A, Bottari A, Costantino A, Figus A, Lauretta A, Mingoli A, Romanzi A, Sagnotta A, Scacchi A, Picchetto A, Valadez AEC, Luzzi AP, Älgå A, Fontalis A, Hecker A, Demetriades AK, Serban AM, Văcărașu AB, Cokan A, Isaza-Restrepo A, Beamish A, Schache A, Stevenson A, Yiu A, Cockbain AJ, Litvin A, Abad-Motos A, Becerra A, Ramos ÁC, Chiaradia A, Dell A, Romano A, Pascale A, Marra AA, Dimas A, Kolias A, Cerovac A, Koneru A, Tidjane A, Agbeko AE, Bajaj A, Gosain A, Allan A, Carreras-Castañer A, D'amore A, Dare A, Maffioli A, Palepa A, Paspala A, Konney A, Gatta AND, Ezanno AC, Yiallourou A, Kinnair A, Rayner A, Scafa AK, Bowan AB, Veglia A, Russo A, Maniaci A, Castaldi A, Gil-Moreno A, Maffuz-Aziz A, Meola A, Nenna A, Ferrer AP, Bonilla AR, Ramos-De La Medina A, Infante AR, Santoro A, Laganà AS, Bateman A, Michael ALR, Abozid A, Seidu AS, Lowery A, Tantraworasin A, Rasheed A, Picciariello A, Isik A, Saif A, Anjum A, Ioannidis A, Abeldaño A, Hussain A, Nathan A, Bedzhanyan A, Perfecto A, De Virgilio A, Galvan A, Sablotzki A, Böttcher A, Pellacani A, Gatti A, Ibrahimli A, Menon A, Sahni A, Mwenda AS, Choudhry A, Jayawardane A, Gupta A, Ramasamy A, Mitul AR, Bawa A, Nugur A, Rammohan A, Sachdeva A, Mehraj A, Yildirim A, Alqaseer A, Radwan A, Sallam A, Syllaios A, Tampakis A, Alwael A, Samara A, Eroglu A, Rahman A, Ulkucu A, Zaránd A, Dulskas A, Tawiah A, Zani A, Vas A, Lukosiute-Urboniene A, Adamu A, Aujayeb A, Malik AA, İplikçi A, Mahmud A, Cil AP, Makanjuola A, Akwaisah A, Galandarova A, Saracoglu A, Regan A, Barlas AM, Alhassan BAB, Mostafa B, Hamida BB, Torun BC, Abdullah B, Balagobi B, Banky B, Singh B, Alegbeleye B, Yigit B, Hajjaj BN, Burgos-Blasco B, Seeliger B, Alayande B, Alhazmi B, Enodien B, Torre B, Pérez BG, Tamayo BV, De Andrés-Asenjo B, Quintana-Villamandos B, Girgin B, Barmayehvar B, Beisenov B, Creavin B, Dunne B, Marson B, Waterson B, Martin B, Zucker B, Wong BNX, Ozmen BB, Hammond B, Mbwele B, Núñez B, Dhondt B, Gafsi B, Mcleish B, Lieske B, Tailor B, La Pira B, Picardi B, Zampogna B, Casagranda B, Festa BM, Panda B, Kirmani B, Sulaiman B, Gurung B, Zacharia B, Bette B, Ayana B, Nikolovska B, Vilaró BC, De Vega Sánchez B, Hameed BZ, Diaconescu B, Kovacevic B, Bumber B, Sakakushev B, Tadic B, Malek B, Alrayes B, Thomas B, Gális B, Gallagher B, Knowles B, Cunningham B, Daley B, Mishra B, Ashford B, Pirozzi BM, Berselli B, Martinez-Leo B, Sensi B, Nardo B, Celik B, Giray B, Abud B, Almiqlash B, Pramesh CS, Taskiran C, De Campos Prado CA, Cipolla C, Kumar C, English C, Riccetti C, Vanni C, Brasset C, Downey C, Duffy C, Chwat C, Cutmore C, Sars C, Ratto C, Pacilio CA, De La Infiesta García C, Moreno CG, Magalhães C, Prada C, Zapata CS, Senni C, Flumignan CDQ, Martinez-Perez C, Duarte CL, Garcia CSR, Anderson C, Hing C, Cullinane C, Cina C, Zabkiewicz C, Sohrabi C, Guldogan CE, Ciubotaru C, Desai C, Raut C, Demetriou C, Handford C, Okpani C, Paranjape C, Koh C, Khatri C, Parmar C, Mok CW, Caricato C, Marafante C, Echieh CP, Tan CY, Ong CS, Conso C, Jardinez C, Konrads C, Warner C, Makwe CC, Henein C, Fleming C, Roland CL, Maurus C, Nitschke C, Mittermair C, Mallmann C, Andro C, Harmston C, Kuppler C, Lotz C, Nahm C, Rowe C, Ryalino C, Wallis C, Millward CP, Anthoulakis C, Apostolou C, Chouliaras C, Kalfountzos C, Kaselas C, Vosinakis C, Okereke C, Chean CS, Barlow C, Tatar C, Clancy C, Forde C, Sharpin C, Mccarthy C, Nestor C, Warden C, Ávila CC, Massaguer C, Fang CEH, Martins CP, Guerci C, Mauriello C, Holzmeister C, Miller C, Weber C, Wiesinger CG, Kenington C, Noel C, Sue-Chue-Lam C, Adumah C, Neary C, Sen C, Fitzgerald C, Ezeme C, Nastos C, Mesina C, Bombardini C, Torregrosa C, Valdespino CP, Don CP, Wickramasinghe D, Milanesi D, Armijos D, Asiimwe D, Beswick D, Clerc D, Cox D, Doherty D, Martínez DF, Lechuga DG, Gero D, Gil-Sala D, Lindegger D, Reim D, Shaerf D, Shmukler D, Branzan D, Filipescu D, Rega D, Bernardi D, Bissacco D, Fusario D, Morezzi D, Sabella D, Zimak DM, Vinci D, Sale D, Khan DZ, Thereska D, Andreotti D, Tartaglia D, Abdulai DR, Mukherjee D, Verdi D, Idowu D, John D, Johnson D, Moro-Valdezate D, Naumann D, Omar D, Proud D, Roberts D, Guzmán DS, Watson D, Bergkvist DJ, Lumenta DB, Ferrari D, Rizzo D, Degarege D, Castillo DFC, Douglas D, Wright D, Nanjiani D, Bratus D, Altun D, Sievers D, Vaysburg D, Katechia D, Ghosh D, Azize DA, Rodrigues D, Pachajoa DAP, Hayne D, Mutter D, Raimondo D, Eskinazi D, Sasia D, Corallino D, Muduly D, Grewal D, Hadzhiev D, Peristeri D, Pournaras D, Raptis DA, Angelou D, Haidopoulos D, Magouliotis D, Moris D, Schizas D, Symeonidis D, Tsironis D, Korkolis D, Tatsis D, Thekkinkattil D, Bulian DR, Pandey D, Vatansever D, Parker D, Wiedemann D, Borselle D, Pedini D, Schweitzer D, Venskutonis D, Otokwala J, Adamu KM, Pk P, Garod M, Ellafi AAD, Zivkovic D, Jelovac D, Wijeysundera D, Mcpherson D, Ryan É, Ugwu E, Baidoo EI, Shaddad E, Memişoğlu E, Naranjo EPL, Brodkin E, Segalini E, Viglietta E, Hendriks E, Bonci EA, Sá-Marta E, Ortega EN, Gomez EGL, Joviliano EE, Clune E, Horwell E, Mains E, Vasarhelyi E, Caruana EJ, Nevins EJ, Yenli EMTA, Baili E, Lostoridis E, Morgan E, Shiban E, Latif E, Tampaki EC, Ezenwa E, Irune E, Borg E, Eisa E, Gialamas E, Parvez E, Theophilidou E, Toma EA, Arnaoutoglou E, Samadov E, Kantor E, Ulman EA, Colak E, Cassinotti E, Bannone E, Sarjanoja E, Yates E, Vincent E, Lun EWY, Cerovac E, Dif ES, Alkhalifa E, Daketsey E, Fayad EA, Sheikh E, Pontecorvi E, Cammarata E, La Corte E, Rausa E, Odai ED, Guasch E, Cano-Trigueros E, Uldry E, Ros EP, Matthews E, Donmez EE, Giorgakis E, Kapetanakis E, Stamatakis E, Bua E, Schneck E, Nachelleh EA, Ofori EO, Akin E, Gönüllü E, Kirkan EF, Çelik E, Wong E, Capozzi E, Pinotti E, Colás-Ruiz E, González E, Fekaj E, Ohazurike E, Kebede E, Erginöz E, Duran EES, Scott E, Aytac E, Albanese E, Castro EJ, Albayadi E, Kriem E, Siddig E, Otify E, El Tayeb EEABH, Hong EH, Saguil E, Belzile E, Tuyishime E, Panieri E, Martínez EG, Myriokefalitaki E, Wong EG, Samara E, Agbeno EK, Drozdov E, Tokidis E, Shah FA, Barra F, Carbone F, Ferreli F, Marino F, Martinelli F, D'acapito F, Masciello F, Bàmbina F, Issa F, Salameh FT, Kethy F, Mahmood F, Gareb F, Idrees F, Karimian F, Ashraf F, Haji F, Inayat F, Begum F, Nabil F, Rosa F, Haider F, Parray F, Calculli F, Ferracci F, Saraceno F, Coppola F, Coccolini F, Fusini F, Migliorelli F, Pecoraro F, Alconchel F, Coimbra FJF, Trivik-Barrientos F, Naegele F, Almarshad F, Agresta F, Fleming F, Mendoza-Moreno F, Brzeszczyński F, Carannante F, Wu F, Aljanadi F, Hayati F, Campo F, Sorbi F, Milana F, Takeda FR, Shekleton F, Gessler F, Recker F, Grama F, Cherbanyk F, Faponle F, Angelis F, Calabretto F, Gaino F, Toia F, Bianco F, Bussu F, Cammarata F, Castagnini F, Colombo F, Ferrara F, Fleres F, Guerrera F, Litta F, Mongelli F, Pata F, Roscio F, Mulita F, Ardura F, Tejero-Pintor FJ, Calvo FJR, Escobedo FJB, Camacho FJB, Odicino F, Schmitt F, Bloemers F, Hölzle F, Gyamfi FE, Messner F, Koh F, Cáceres F, Smolle-Juettner FM, Herman F, Ayeni F, Djedovic G, De Oliveira GP, Rodrigues G, Wagner G, Bellio G, Giarratano G, Capolupo GT, Budd G, Marom G, Poillucci G, Thiruchandran G, Nicholson G, Groot G, Hoey G, Bass GA, Sachdev G, Agarwal G, Aggarwal G, Cormio G, Mazzarella G, Perrone G, Osterhoff G, Singer G, Dejeu G, Fowler G, Garas G, Gradinariu G, Theodoropoulos G, Tzimas G, Babis G, Wong GKC, Cross GWV, Micha G, Chrysovitsiotis G, Koukoulis G, Peros G, Tsoulfas G, Kapetanios G, Karagiannidis G, Verras GI, Ekwen G, Perrotta G, Petruzzi G, Bertelli G, Calini G, Fiacchini G, Pirola GM, Dolci G, Mendiola G, Baiocchi GL, Palini GM, Prucher GM, D'andrea G, Maggiore G, Cassese G, Franceschini G, Pellino G, Saponaro G, Pattacini GC, Pantuso G, Iannella G, Bonsaana GB, Lever G, Brachini G, Giraudo G, Lisi G, Russo GI, Aprea G, Pascale G, Tomasicchio G, Sandri GBL, Armatura G, Turri G, Zaccaria G, Barugola G, Lantone G, Gasparini G, Iacob G, Sozzi G, Zancana G, Mercante G, Bianco G, Brisinda G, Consorti G, Currò G, Giannaccare G, Palomba G, Pascarella G, Rotunno G, Spriano G, Vizzielli G, Cucinella G, Sica G, Campisi G, Baiocchi G, Guerra GR, Pacheco GMF, Atis G, Augustin G, Šantak G, Chauhan GS, Branagan G, Harris G, Stewart GD, Padmore G, Kocher GJ, Di Franco G, De Jesus Labrador Hernandez G, Christodoulidis G, Neal-Smith G, Yim G, Piozzi GN, Claret G, Yanowsky-Reyes G, Dhaity GD, Cakmak GK, Mohamed G, Kucuk GO, Ancans G, Banipal GS, De Bacco Marangon G, Laporte G, Martinez-Mier G, Recinos G, V GMM, Benshetrit G, Vijgen G, Pickett G, Rodriguez HA, Shiwani H, Derilo H, Awad H, El Assaad H, Raji HO, Hardgrave H, Karakullukcu HK, Abdussalam HO, Mustafa H, Parwaiz H, Khan H, Arbab H, Naga H, Salem H, Ulgur HS, Perez-Chrzanowska H, Greenlee H, Javanmard-Emamghissi H, Lederhuber H, Osman H, Adamou H, Majid HJ, Van Goor H, Spiers HVM, Manesh HF, Mushtaq H, Aljaaly H, Hasan HB, Ahmed HTA, Martinez-Said H, Aguado HJ, Consani H, Chaplin H, Mohan H, Van Vliet H, Lohse HAS, Shah H, Claireaux H, Lule H, Juara H, Abozied H, Bayo HL, Alibrahim H, Kroon HM, Ulman H, Khan H, Yonekura H, Abou-Taleb H, Wong HYF, Carpenter H, Majd HS, Zenha H, Mayer HF, Elghadban H, Abdou H, Elfeki H, Yusefi H, Gomez-Fernandez H, Horsfall HL, Meleiro H, Sungurtekin H, Junior HFL, Moloo H, Bayhan H, Şevi̇k H, Embarek H, Hamid HKS, Pradeep IHDS, Donkin I, Ateca IV, Jafarov I, Salisu I, Abdalaal I, Garzali IU, Sall I, Adebara I, Aghadi I, Ugwu I, Zapardiel I, Reis I, Nwafor I, Fakhradiyev I, Surya IU, Robo I, Njokanma I, Iannone I, Khan I, Correia I, Königsrainer I, Seiwerth I, Linero IB, Kadiri I, Florian IA, Tzima I, Akrida I, Baloyiannis I, Gerogiannis I, Katsaros I, Tsakiridis I, Valioulis I, Negoi I, Yadev I, De Haro Jorge I, Vázquez IO, Dajti I, Russo IS, Afzal I, Wasserman I, Chukwu I, Gracia I, Oliver IM, Hughes I, Mondi I, Ncogoza I, Bsisu I, Rashid I, Balasubramanian I, Omar I, Dominguez-Rosado I, Smati I, Vokshi I, Al-Badawi IA, Saleh IA, Pilkington I, Kirac I, Trostchansky I, Gawron IM, Trebol J, Martellucci J, Andreuccetti J, Abou-Khalil J, Shah J, Manickavasagam J, De Alarcón JR, Mihanovic J, O'riordan J, Archer J, Ashcroft J, Blair J, Hamill J, Munthali J, Park J, Parry J, Ryan J, Tomlinson J, Wheeler J, Wilkins J, Balogun JA, Hodgetts JM, Vatish J, Žatecký J, Dziakova J, Martin J, Beatty JW, Stijns J, Faiz J, Ripollés-Melchor J, Mata J, Vásquez JAG, Mitra JK, Tuech JJ, Mvukiyehe JP, Fallah JM, Díaz JT, Vishnoi JR, Van Den Eynde J, Rickard J, Rolinger J, Kaplowitz J, Meyer J, Reid J, Rossaak J, Smelt J, Thomas JJ, Reyes JAS, Davies J, Luc J, Alonso JAM, Hajiioannou J, Querney J, Van Acker J, Pu JJ, Cama J, Simoes J, Cozens J, Barbosa-Breda J, Ribeiro J, De Haro J, Nigh J, Bowen J, Pollok JM, Strotmann JJ, Doerner J, Edwards J, Green J, Massoud J, Mcgrath J, Squiers J, Street J, Windsor J, Santoshi JA, Meara JG, Abebrese JT, Reilly JJ, Zabaleta J, Phillips J, Herron J, Horsnell J, Dawson J, Sheen J, Kauppila JH, Konsten J, Raurich-Leandro J, Romera JS, Nuñez J, Gass JM, Blanco J, Calvache JA, Iturralde JLF, D’addino JL, Hermosa JMG, Guillen JRO, Beristain-Hernandez JL, Sole-Sedeno JM, Vives JMM, Attwood J, Furey J, Hadaya J, Mckay J, Meilak J, Natale J, Shalhoub J, Jung J, Arthur J, Kealey J, Wright J, Moreau J, Miskovic J, Juloski J, Bauset JCC, Segura-Sampedro JJ, Cisneros JRT, Gomez-Rosado JC, Arneja J, Heider J, Fernández JD, Plata-Bello J, Villanueva J, Olaogun J, Hing JX, Košir JA, Daruwalla J, Yeung J, Wormald J, Seyi-Olajide J, Rani J, Wong KY, Hristova K, Kajal K, Algarni K, Theivendran K, Futaba K, Elsayem K, Kapur K, Bailey K, El-Boghdadly K, Ataya K, Lacorbiniere K, Shah K, Tellez KSM, Szyluk K, Rangasamy K, Iyengar K, Szabómihályová K, Atkinson K, Camargo-Parra K, Galliard K, Dickson K, Singh K, Qader K, Hasan K, Spellar K, Feeney K, Ajenifuja K, Oh KE, Okunade K, Adanu K, Bateman K, Saracoglu K, Ho KW, Enwerem K, Mishra K, Verhoeff K, Bensoltane K, Larabi K, Hamdan KH, Nadi K, Fozo K, Abdelwahab K, Al-Sayaghi K, Dajani K, Algahtany K, Abdel-Galil K, Ahmed K, Bajunaid K, Bhatti K, Sofi K, Abdulsalam K, Tamoos K, Dzhumabaev K, Samo KA, Purich K, Madhvani K, Qin KR, Underwood K, Senanayake KJ, Augestad KM, Sigamoney K, Apostolou K, Bouchagier K, Bouliaris K, Bramis K, Gousias K, Lasithiotakis K, Paraskevopoulos K, Perivoliotis K, Roditis K, Stamatis K, Stroumpoulis K, Paraskevas KI, Govindarajan KK, Šimko K, Olson KA, Khobragade K, Seah KM, Kishore K, Ayad K, Papavasiliou K, Angelou K, Paniagua LC, Czako L, Ching LVK, Rai L, Gupta L, Ismail L, Mbodi L, Dasanayake L, Schröder L, Baiyewu LA, Fortuna L, Fernandez LG, Vivancos LG, Jack L, Keçi L, Lavalle L, Leonard L, Shelmerdine L, Vaassen L, Hasan L, Lazarou L, Tzelves L, Matos L, Siragusa L, Licari L, Lima LS, Solaini L, Lichman L, Moral LT, Cabeza L, Kaplan L, Valeanu L, Kaman L, Karout L, Pieteris L, Chan L, Grüßer L, Zamora L, Catarzi L, Rampersad L, Anyanwu LJ, Cheung LK, Rodríguez LV, Andreani L, Cobianchi L, Petagna L, Howse L, Gonzalez LE, Bains L, Vohra L, Ansaloni L, Bertolaccini L, Ferrario L, Orecchia L, Tirloni L, Zanin L, Morelli L, Scaravilli L, Locatello LG, García LD, Vida L, Carbone L, Heindl LM, Bonavina L, Conti L, Marano L, Verre L, Conte LE, Boccalatte L, Tellez LGS, Loureiro L, Sánchez-Guillén L, Tallon-Aguilar L, Nakano L, Alvarez-Lozada LA, Gonzalez LAS, Flórez LJG, Capitan-Morales LC, Kowalski LP, Widmer LW, Harper L, Render L, Wheldon L, Abdur-Rahman L, Doğan L, Prusty L, Katsiaras L, Gourbault L, Siddiqui MT, Saleh M, Karthigeyan M, Rodriguez M, Chowdhury M, Nagappa M, Sultania M, Bashir M, Alam M, Elshahawy MAM, Elfiky M, Loubani M, Marei M, Mewafy M, Alali M, Nassar MA, Alobied M, Bilfaqirah M, Ahmad M, Rius M, Manangi M, Dornseifer MD, Tripathi M, S M, Sokolov M, Pigeolet M, Alonso MD, Losada M, Carretero MM, Tousidonis M, Cotovio MD, Wijeyaratne M, Boira MA, Franza M, Albdour M, Alkhatieb M, Déserts MDD, Niewiera M, Vallve-Bernal M, Kavanagh MM, Migliore M, Calabrò M, Martino MD, Reicher M, Baia M, Caricato M, Clementi M, De Zuanni M, Fiore M, Giacometti M, Inama M, Maestri M, Materazzo M, Sparavigna M, Pascale MM, Nemeth M, Serra M, Fahim MMF, Soucheiron MC, Papadoliopoulou M, Wittmann M, Sotiropoulou M, García-Conde M, Ranucci MC, Amo MDAD, Boedo MJM, Velázquez MJM, Pissaridou MK, Petersen ML, Sacras ML, Modolo MM, Caubet MM, Di Nuzzo MM, Ntalouka MP, Menna MP, Aguilera-Arevalo ML, Rela M, Capuano M, Hollyman M, Olivos M, Sacdalan MD, Raphael MC, Takkenberg M, Bortul M, Cabrera M, Castaño M, D'oria M, Giuffrida M, Laborde MM, Rodriguez-Lopez M, Trejo-Avila M, Papa MV, Ghobrial M, Kryzauskas M, Anwer M, Cheetham M, Davies M, Higgins M, Siboe M, Tarle M, Velten M, Wurm M, Süleyman M, Bauer M, O’dwyer M, Caretto M, De La Rosa-Estadella M, Fragoso M, Serra ML, Merayo M, Golet MR, Martínez-Sánchez MI, Domingo MMA, Gosselink M, Batstone M, Reichert M, Salö M, Soljic M, Zambon M, Angeles MA, Abdulkhaleq M, Abdelkarim M, Alsefri M, Iwasaki M, Shiota M, Veroux M, Molina-Corbacho M, Frasson M, Serenari M, De Pastena M, Desio M, Risaliti M, Rottoli M, Bence M, Chan M, Watson M, Wiles M, Boisson M, Berselli M, Capobianco M, Di Bartolomeo M, Fehervari M, Pacilli M, Romano M, Zizzo M, Domanin M, Montuori M, Podda M, Zago M, Dzogbefia M, Frountzas M, Thaw MH, Al-Juaifari M, Gharat M, Mohamed M, Hannan MJ, Venketeswaran M, Chisthi M, Dessalegn M, Kaplan M, Çakıcı MÇ, Ulutaş ME, Hassan M, Elsadek M, Mengesha MG, Gómez ME, Elbadawy MA, Pitcher M, Tanal M, Tokocin M, Ergenç M, Çelik MN, Bareka M, Pekcici MR, Cappuccio M, Dasa M, Dewan M, El Boghdady M, Ezeanochie M, Greenhalgh M, Jenkinson M, Kelly M, Spartalis M, Zyskowski M, Racine M, De Cillia M, Chu MJJ, Mallmann MR, Zhu MZL, Klimovskij M, Vailas M, Kisielewski M, Adamina M, Campanelli M, Carvello M, Ammendola M, Manigrasso M, Scopelliti M, White M, Collins ML, Chevallay M, Borges MF, Mayo-Yáñez M, Melo MR, Ruiz-Marín M, Eiras MAF, Cunha MF, Pertea M, Slavchev M, Davidescu M, Prieto M, Agapov M, Gahwagi M, Prats MC, Rudic M, Verbic MS, Kostusiak M, Stoleriu MG, Lucas MA, Barone M, Ahmad M, Alemu MAA, Fatima M, Ida M, Sahu M, Muhaisen M, Salem M, Emara MM, Oludara M, Sotudeh M, Kassab MB, Abdelkhalek M, Alsori M, Anwar M, El-Kassas M, Elbahnasawy M, Eldabaa M, Rabie M, Hassanin MA, Thaha MA, Ali MSM, Alhamid M, Almoshantaf MB, Keramati MR, Bafaquh M, Abuzaid M, Al-Shehari M, Alharthi M, Alkahlan M, Alwash M, Alyousef M, Amir M, Basendowah M, Deputy M, Jibreel M, Alam MS, Alsharif M, Issahalq MD, Omer MEA, Abubakar MK, Draman MR, Elnour MAE, Eltayeb M, Castillo MN, Jawad M, Raut M, Ghalleb M, Katsura M, Lebe M, Abbas M, Abdelrahman M, Shalaby M, Farhan-Alanie M, Farooq M, Musadaq M, Arshad M, Anjum MA, Usman M, Chaudhary MA, Raza MA, Karim MFSA, Chaudhary MH, Janjua MH, Khokhar MI, Malik MIK, Pirzada MT, Younis MU, Elhadi M, Suer MS, Ergenç M, Binnawara M, Emmanuel M, Abbasi M, Naimzada MD, Kulimbet M, Kusunoki M, Eugene M, Chauhan M, Shokor MA, Aljiffry M, Kalın M, Kurawa M, Dincer MB, Tolani MA, Soytas M, Yakubu M, Usman MI, Aremu M, Paranyak M, Talat N, Kausar N, Dudi-Venkata N, Bazzi N, Hasan NB, Van Wyk NN, Shaban N, Almgla N, Kandevani NY, Alzerwi N, Alvarez N, Motas N, Rincón NAR, Blencowe N, Simon N, Aghtarafi N, Ghuman NK, Sharma N, Wijekoon N, Kumar N, Hassan N, Onyemaechi N, Prijović N, Özçay N, Goel N, Segaren N, Sharma N, Kalyva N, Palacios NM, Alonso NFP, Onyeagwara N, Petrucciani N, Daddi N, Lightfoot N, Power N, Segaren N, Starr N, Dreger NM, Cillara N, Colucci N, Eardley N, Tartaglia N, Zanini N, Bacalbasa N, Campuzano N, Mouawad N, Federico NSP, Tamini N, Mariani NM, Beasley N, Adu-Aryee NA, Burlov N, Dimitrokallis N, Gouvas N, Machairas N, Memos N, Thomakos N, Tsakiridis N, Schizas N, Börner N, Theochari N, Al-Saadi N, Glass N, Horesh N, R NE, Gahlot N, Ismail N, Aljirdabi N, Maria NUH, Trabulsi N, Akeel N, Borges N, Moda N, Redondo NV, Nyarko OO, Ginghina O, Enciu O, Okere O, Ekwunife OH, Quadri O, Ogundoyin O, Tucker O, Mateo-Sierra O, Azzis O, Ojewuyi O, Habeeb O, Idowu O, Elebute O, Agboola O, Ladipo-Ajayi O, Oyinloye O, Adebola O, Ekor O, Ogundoyin O, Salamanca O, Vergara-Fernandez O, Wafi O, Aladawi O, Bahassan OM, Tammo Ö, Ozkan OF, Williams OM, Salami O, Akinajo O, Sakhov O, Gallo O, Sole OM, Milella O, Alser O, Bettar OA, Alomar O, Osman OS, Aisuodionoe-Shadrach O, Basnayake O, Bozbiyik O, Hodges O, Ojo O, Yanık Ö, Mutlu ÖPZ, Kazan O, Calavia P, García PR, Urriza PV, Lopez PR, Christidis P, Dorovinis P, Kokoropoulos P, Mourmouris P, Papatheodorou P, Garg PK, Patel P, Vassiliu P, Campennì P, De Nardi P, Bernante P, Ubiali P, Baroffio P, Pizzini P, Sapienza P, Myrelid P, Chatzikomnitsa P, Tsiantoula P, Gada P, Avella P, Cianci P, Romero P, Méndez PS, Pazmiño PAF, Coughlin P, Kirchweger P, Pessaux P, Maguire PJ, Petrone P, Cullis P, Köglberger P, Marriott P, Nankivell P, Santos-Costa P, Martins PN, Panahi P, Botelho P, Teixeira P, Escobar P, Vázquez PJG, Gribnev P, Nolte P, Agbonrofo P, Bobak P, Choong P, Elbe P, Hutchinson P, Labib P, Paal P, Pockney P, Reemst P, Szatmary P, Vaughan-Shaw PG, Alexander P, Pucher P, Stather P, Foessleitner P, Winnand P, Zehnder P, Kruse P, Matos PAW, Lapolla P, Cicerchia PM, Solli P, Di Lascio P, Zarif P, Champagne PO, Anoldo P, Bertoglio P, Fransvea P, Familiari P, Lombardi PM, Stogowski PT, Bruzzaniti P, Tripathi P, D'sa P, Salunke P, Shah PA, Punjabi PPP, Christodoulou P, Hamdan Q, Tawalbeh R, Gadelkareem R, Awad R, Callcut R, Clegg R, Choron R, Payne R, Gefen R, Costea R, Drasovean R, Mirica RM, Ravindra R, Fajardo RT, Nunes RL, Aspide R, Lombardi R, Vidya R, Elboraei R, Saaid R, Ghodke R, Gupta R, Sharma RD, Lunevicius R, Kalayarasan R, Mohan R, Singh R, Sivaprakasam R, Seenivasagam RK, Rajendram R, Radulescu RB, Goicea R, Seshadri RA, Sarı R, Nataraja R, Aslam R, Abdelemam R, Shrestha R, Bharathan R, Pellini R, Guevara R, Agarwal R, Vissapragada R, Alharmi RA, Sayyed R, Browning R, Critchley R, Mallick R, Alarabi R, Beron RI, Függer R, Othman R, Saad R, Amores RR, Colombari RC, Radivojević RC, Patrone R, Novysedlák R, Palacios Huatuco RM, Baertschiger R, Liang R, Luckwell R, Escrevente R, Rezende RF, Cruz RP, Lenzi R, Rosati R, Donovan R, Egan R, Morris R, Page R, Seglenieks R, Unsworth R, Wilkin R, Skipworth RJ, Davies RJ, Bezirci R, Talwar R, Azami R, Bohmer R, Crichton R, Fruscio R, Hooker R, Jach R, Parker R, Pillerstorff R, Sinnerton R, Stabler R, O'connell RM, Ragozzino R, Tutino R, Angelico R, Cammarata R, Colasanti R, Macchiavello R, Peltrini R, Pirrello R, Vaschetti R, Pires RE, Papalia R, Arrangoiz R, Hompes R, Mittal R, Salah R, Pinto R, Flumignan R, Callan R, Cuthbert R, Dennis R, Scaramuzzo R, Macías RM, Sánchez R, Ogu R, Ramely R, Sgarzani R, Ramli R, Hillier R, Thumbadoo R, Ooi R, Abdus-Salam R, Masri R, Hodgson R, Mathew R, Wade R, D'archi S, Khan S, Ngaserin S, Kale S, Hassan S, Merghani S, Benamar S, Muhammad S, Badran S, Elsahli S, Heta S, Hammouche S, Baeesa S, Paiella S, Eldeen STEHT, Arkani S, Mittal S, Hirji S, Tebha S, Emile S, Dbouk S, Bandyopadhyay SK, Muhammad S, Olori S, Asirifi SA, Hailu S, Ling S, Newman S, Ross S, Wanjara S, Kumar S, Seneviratne S, Tamburello S, Suarez SB, Ingallinella S, Irshaidat S, Konswa S, Mambrilla S, Nasser S, Parini S, Pitoni S, Ornaghi S, Rodrigues SC, Abdelmohsen S, Aitken S, Tian S, Badiani S, Ahmad S, Swed S, Muthu S, Lakpriya S, Alzahrani S, Mikalauskas S, Lasrado S, Satoskar S, Bawa S, Altiner S, Garcia S, Stevens S, Demir S, Ken-Amoah S, Tranca S, Ziemann S, Awad S, Atici SD, Subramaniam S, Erel S, Jiang S, Efetov S, Efremov S, Katorkin S, Valladares SC, Contreras SM, Meriç S, Zenger S, Safi S, Leventoğlu S, Elsalhawy S, Shaikh S, Sheik S, Islam S, Shamim S, Waqar SH, Ahmad S, Farid S, Seraj SS, Sundarraju S, Karandikar S, Sambhwani S, Chopra S, Chowdhury S, Laura S, Ahmed S, Wason S, Tan SJH, Fraser S, Williams S, Ghozy S, Abdelmawgoud S, Shehata S, Sharma S, Ahmed S, Al-Touny SA, Ramzanali S, Nah SA, Jansen S, Rajan S, Dindyal S, Amin S, Ahmad S, Shoukrie SIM, Karar S, Patkar S, Abdulsalam S, Lin S, Hegde S, Fiorelli S, Quaresima S, Redondo SV, Palmisano S, Ruggiero S, Balogun S, Cais S, Cole S, Federer S, Le Roux S, Ippoliti S, Meneghini S, Viola S, Manfredelli S, Novello S, Gananadha S, Mesli SN, Kale S, Tani SI, Malik S, Anastasiadou S, Boligo S, Esposito S, Valanci S, Xenaki S, Pejkova S, Bandyopadhyay S, Trungu S, Basu S, Alkhatib S, Pérez-Bertólez S, Flores SL, Donoghue S, Lunca S, Orsoo S, Potamianos S, Devarakonda S, Suresh S, Croghan SM, Turi S, Capella S, Lucchini S, Magnone S, Salizzoni S, Scabini S, Scaringi S, Cioffi SPB, Seyfried S, Degener S, Potten S, Taha-Mehlitz S, Ali S, Angamuthu S, Mcaleer S, Knight SR, White S, Mantziari S, Kykalos S, Goh SK, Chowdhury SP, Ibrahim S, Elzwai S, Bansal S, Tripathy S, Amrayev S, Anwar SL, Banerjee S, Thakar S, Saeed S, Venkatappa SK, Das S, Techapongsatorn S, Dube SK, Lee S, González-Suárez S, Henriques S, Konjevoda S, Gisbertz S, Bravo SL, Mannan S, Bukhari SI, Zafar SN, Batista S, Chin SL, Arif T, Lawal TA, Aktokmakyan TV, Osborn T, Szakmany T, Sztipits T, Triantafyllou T, Valadez TAC, Singh T, Khaliq T, Patel T, Fadalla T, Jichi T, Sammour T, Al-Shaiji T, Naggs T, Barišić T, Nikolouzakis T, Bisgin T, Perra T, Uprak TK, Dagklis T, Liakakos T, Sidiropoulos T, Adjeso TJK, Dölker T, Oung T, Aherne T, Diehl T, Pinkney T, Raymond T, Rhomberg T, Schmitz-Rixen T, Madhuri TK, Lohmann TK, Yeoh T, Zaimis T, Bright T, Vilz TO, Glowka TR, Board T, Hardcastle T, Cohnert T, Mahečić TT, William TG, Klatte T, Abbott T, Watcyn-Jones T, Mendes T, Kulis T, Sečan T, Campagnaro T, Frisoni T, Simoncini T, Violante T, Safranovs TJ, Risteski T, Pang T, Akinyemi T, Yotsov T, Laeke T, Kochiyama T, Sholadoye TT, Alekberli T, Ezomike U, Giustizieri U, Grossi U, Köksoy ÜC, Bork U, Kisser U, Ronellenfitsch U, Saeed U, Bracale U, Jayarajah U, Rauf UHA, Bumbasirevic U, Ferrer UMJ, Ahmed U, Bello UM, Jogiat U, Sadia U, Galandarov V, Narayanan V, Calu V, Bianchi V, Ciniero V, Tonini V, Silvestri V, Vijay V, Dewan V, Lohsiriwat V, Thuduvage V, Mousafeiris V, Dragisic V, Sasireka V, Santric V, Kusuma VRM, Kolli VS, Alonso V, De Simone V, Picotti V, Martínez VM, Panduro-Correa V, Kakotkin V, Angulo VP, Turrado-Rodriguez V, Krishnamoorthy V, Ban VS, Shah V, Maiola V, Giordano V, La Vaccara V, Lizzi V, Papagni V, Schiavone V, Satchithanantham V, Garcia-Virto V, Jimenez V, Kumar V, Shelat V, Bhat V, Sodhai V, Graziadei V, Kutuzov V, Stoyanov V, Oktseloglou V, Flis V, Elhassan WAF, Yang W, Soon WC, Tashkandi W, Al-Khyatt W, Mabood W, Bijou W, Wijenayake W, D W, Krawczyk W, Atkins W, Bolton W, White W, Ceelen W, Vagena X, Gozal Y, Baba YI, Subramani Y, Jansen Y, Mittal Y, Kara Y, Zwain Y, Noureldin Y, Alawneh Y, Aydin Y, Lam YH, Tang Y, Lim Y, Dean Y, Tanas Y, Su YX, Fujimoto Y, Altinel Y, Frolova Y, Oshodi Y, Fadel ZT, Zahid Z, Elahi Z, Djama Z, Zaheen Z, Jawad Z, Demetrashvili Z, Gebremeskel Z, Gudisa Z, Alyami Z, Garoufalia Z, Li Z, Zimak Z, Radin Z, Balogh ZJ. Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries. Br J Surg 2023; 110:804-817. [PMID: 37079880 PMCID: PMC10364528 DOI: 10.1093/bjs/znad092] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. METHODS This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low-middle-income countries. RESULTS In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of 'single-use' consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low-middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. CONCLUSION This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high- and low-middle-income countries.
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El-Sayed C, Fletcher JA, Sarmah P, Sivathondan P, Vaughan-Shaw PG. The Dukes' Club fundamentals of colorectal surgery video series: A stepwise approach to laparoscopic right hemicolectomy- A video vignette. Colorectal Dis 2022; 25:828-829. [PMID: 36325956 DOI: 10.1111/codi.16406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Charlotte El-Sayed
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK.,University of Birmingham, Birmingham, UK
| | - Jordan A Fletcher
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Panchali Sarmah
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | | | - Peter G Vaughan-Shaw
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
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Harris BT, Rajasekaran V, Blackmur JP, O'Callaghan A, Donnelly K, Timofeeva M, Vaughan-Shaw PG, Din FVN, Dunlop MG, Farrington SM. Transcriptional dynamics of colorectal cancer risk associated variation at 11q23.1 correlate with tuft cell abundance and marker expression in silico. Sci Rep 2022; 12:13609. [PMID: 35948568 PMCID: PMC9365857 DOI: 10.1038/s41598-022-17887-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/02/2022] [Indexed: 11/09/2022] Open
Abstract
Colorectal cancer (CRC) is characterised by heritable risk that is not well understood. Heritable, genetic variation at 11q23.1 is associated with increased colorectal cancer (CRC) risk, demonstrating eQTL effects on 3 cis- and 23 trans-eQTL targets. We sought to determine the relationship between 11q23.1 cis- and trans-eQTL target expression and test for potential cell-specificity. scRNAseq from 32,361 healthy colonic epithelial cells was aggregated and subject to weighted gene co-expression network analysis (WGCNA). One module (blue) included 19 trans-eQTL targets and was correlated with POU2AF2 expression only. Following unsupervised clustering of single cells, the expression of 19 trans-eQTL targets was greatest and most variable in cluster number 11, which transcriptionally resembled tuft cells. 14 trans-eQTL targets were found to demarcate this cluster, 11 of which were corroborated in a second dataset. Intra-cluster WGCNA and module preservation analysis then identified twelve 11q23.1 trans-eQTL targets to comprise a network that was specific to cluster 11. Finally, linear modelling and differential abundance testing showed 11q23.1 trans-eQTL target expression was predictive of cluster 11 abundance. Our findings suggest 11q23.1 trans-eQTL targets comprise a POU2AF2-related network that is likely tuft cell-specific and reduced expression of these genes correlates with reduced tuft cell abundance in silico.
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Affiliation(s)
- Bradley T Harris
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Vidya Rajasekaran
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - James P Blackmur
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Alan O'Callaghan
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Kevin Donnelly
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Maria Timofeeva
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Department of Public Health, D-IAS, Danish Institute for Advanced Study, University of Southern Denmark, Odense, Denmark
| | - Peter G Vaughan-Shaw
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Farhat V N Din
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Malcolm G Dunlop
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Susan M Farrington
- Edinburgh Cancer Research, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
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Blackmur JP, Vaughan-Shaw PG, Donnelly K, Harris BT, Svinti V, Ochocka-Fox AM, Freile P, Walker M, Gurran T, Reid S, Semple CA, Din FVN, Timofeeva M, Dunlop MG, Farrington SM. Gene Co-Expression Network Analysis Identifies Vitamin D-Associated Gene Modules in Adult Normal Rectal Epithelium Following Supplementation. Front Genet 2022; 12:783970. [PMID: 35096006 PMCID: PMC8790603 DOI: 10.3389/fgene.2021.783970] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/02/2021] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is a common, multifactorial disease. While observational studies have identified an association between lower vitamin D and higher CRC risk, supplementation trials have been inconclusive and the mechanisms by which vitamin D may modulate CRC risk are not well understood. We sought to perform a weighted gene co-expression network analysis (WGCNA) to identify modules present after vitamin D supplementation (when plasma vitamin D level was sufficient) which were absent before supplementation, and then to identify influential genes in those modules. The transcriptome from normal rectal mucosa biopsies of 49 individuals free from CRC were assessed before and after 12 weeks of 3200IU/day vitamin D (Fultium-D3) supplementation using paired-end total RNAseq. While the effects on expression patterns following vitamin D supplementation were subtle, WGCNA identified highly correlated genes forming gene modules. Four of the 17 modules identified in the post-vitamin D network were not preserved in the pre-vitamin D network, shedding new light on the biochemical impact of supplementation. These modules were enriched for GO terms related to the immune system, hormone metabolism, cell growth and RNA metabolism. Across the four treatment-associated modules, 51 hub genes were identified, with enrichment of 40 different transcription factor motifs in promoter regions of those genes, including VDR:RXR. Six of the hub genes were nominally differentially expressed in studies of vitamin D effects on adult normal mucosa organoids: LCN2, HLA-C, AIF1L, PTPRU, PDE4B and IFI6. By taking a gene-correlation network approach, we have described vitamin D induced changes to gene modules in normal human rectal epithelium in vivo, the target tissue from which CRC develops.
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Affiliation(s)
- James P. Blackmur
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Peter G. Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Kevin Donnelly
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Bradley T. Harris
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Victoria Svinti
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Anna-Maria Ochocka-Fox
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Paz Freile
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Marion Walker
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Toby Gurran
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Stuart Reid
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Colin A. Semple
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Farhat V. N. Din
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Maria Timofeeva
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Department of Public Health, Danish Institute for Advanced Study, University of Southern Denmark, Odense, Denmark
| | - Malcolm G. Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Susan M. Farrington
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
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Vogel I, Vaughan-Shaw PG, Gash K, Withers KL, Carolan-Rees G, Thornton M, Dhruvao Rao PK, Torkington J, Cornish JA. Improving the time to ileostomy closure following an anterior resection for rectal cancer in the UK. Colorectal Dis 2022; 24:120-127. [PMID: 34543512 DOI: 10.1111/codi.15921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 02/08/2023]
Abstract
AIM Delayed closure of ileostomy following an anterior resection for rectal cancer in the UK is common. The aims of this study were (i) to investigate the variation in patient pathways between hospitals, (ii) to identify the key learning points from units with the shortest time to closure and (iii) to develop guidance for a pathway to minimize delay in ileostomy closure. METHOD This was a mixed methods study. Thirty-eight colorectal units in the UK completed a short online survey. Nine colorectal units in Wales filled in an additional, expanded version of the survey. Semi-structured interviews were performed with clinicians from the six best performing units in terms of timely ileostomy closure. The optimal pathway suggested is based on the best evidence available and the Association of Coloproctology of Great Britain and Ireland guidelines. RESULTS Qualitative analysis revealed that 5% of units (n = 2) have a local target time for ileostomy closure. Of all units, 90% (n = 34) would consider implementing a pathway if guidelines were developed. In-depth interviews highlighted the importance of a multidisciplinary approach, a dedicated coordinator to facilitate timely booking, and consensus on whether closure should be performed before or after adjuvant chemotherapy. CONCLUSION There is a lack of national guidance in timing of contrast studies and ileostomy closure. Key aspects to consider are better information at consent regarding stoma closure timing, a dedicated person to track patients and the planning of contrast studies at discharge from initial surgery. With a dedicated approach closure of ileostomy within 10-12 weeks is feasible for most units.
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Affiliation(s)
- Irene Vogel
- Department of Surgery, University Hospital of Wales, Cardiff, UK
| | - Peter G Vaughan-Shaw
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Katherine Gash
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Kathleen L Withers
- Cedar, Cardiff and Vale University Health Board, Cardiff Medicentre, Cardiff, UK
| | - Grace Carolan-Rees
- Cedar, Cardiff and Vale University Health Board, Cardiff Medicentre, Cardiff, UK
| | - Michael Thornton
- Department of Surgery, Wrexham Maelor Hospital, Betsi Cadwaladr UHB, Wrexham, UK
| | | | - Jared Torkington
- Department of Surgery, University Hospital of Wales, Cardiff, UK
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Julie A Cornish
- Department of Surgery, University Hospital of Wales, Cardiff, UK
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
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11
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Vaughan-Shaw PG, Blackmur JP, Grimes G, Ooi LY, Ochocka-Fox AM, Dunbar K, von Kriegsheim A, Rajasekaran V, Timofeeva M, Walker M, Svinti V, Din FVN, Farrington SM, Dunlop MG. Vitamin D treatment induces in vitro and ex vivo transcriptomic changes indicating anti-tumor effects. FASEB J 2022; 36:e22082. [PMID: 34918389 DOI: 10.1096/fj.202101430rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 12/21/2022]
Abstract
Vitamin D deficiency is associated with risk of several common cancers, including colorectal cancer (CRC). Here we have utilized patient derived epithelial organoids (ex vivo) and CRC cell lines (in vitro) to show that calcitriol (1,25OHD) increased the expression of the CRC tumor suppressor gene, CDH1, at both the transcript and protein level. Whole genome expression analysis demonstrated significant differential expression of a further six genes after 1,25OHD treatment, including genes with established links to carcinogenesis GADD45, EFTUD1 and KIAA1199. Furthermore, gene ontologies relevant to carcinogenesis were enriched by 1,25OHD treatment (e.g., 'regulation of Wnt signaling pathway', 'regulation of cell death'), with common enriched processes across in vitro and ex vivo cultures including 'negative regulation of cell proliferation', 'regulation of cell migration' and 'regulation of cell differentiation'. Our results identify genes and pathways that are modifiable by calcitriol that have links to CRC tumorigenesis. Hence the findings provide potential mechanism to the epidemiological and clinical trial data indicating a causal association between vitamin D and CRC. We suggest there is strong rationale for further well-designed trials of vitamin D supplementation as a novel CRC chemopreventive and chemotherapeutic agent.
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Affiliation(s)
- Peter G Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - James P Blackmur
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Graeme Grimes
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Li-Yin Ooi
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Department of Pathology, National University Hospital, National University Health System, Singapore City, Singapore
| | - Anna M Ochocka-Fox
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Karen Dunbar
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Alex von Kriegsheim
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Vidya Rajasekaran
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Maria Timofeeva
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- DIAS, Danish Institute for Advanced Study, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Marion Walker
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Victoria Svinti
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Farhat V N Din
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Susan M Farrington
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Malcolm G Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
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12
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Vaughan-Shaw PG, Timofeeva M, Ooi LY, Svinti V, Grimes G, Smillie C, Blackmur JP, Donnelly K, Theodoratou E, Campbell H, Zgaga L, Din FVN, Farrington SM, Dunlop MG. Differential genetic influences over colorectal cancer risk and gene expression in large bowel mucosa. Int J Cancer 2021; 149:1100-1108. [PMID: 33937989 DOI: 10.1002/ijc.33616] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 03/05/2021] [Accepted: 03/31/2021] [Indexed: 12/30/2022]
Abstract
Site-specific variation in colorectal cancer (CRC) incidence, biology and prognosis are poorly understood. We sought to determine whether common genetic variants influencing CRC risk might exhibit topographical differences on CRC risk through regional differences in effects on gene expression in the large bowel mucosa. We conducted a site-specific genetic association study (10 630 cases, 31 331 controls) to identify whether established risk variants exert differential effects on risk of proximal, compared to distal CRC. We collected normal colorectal mucosa and blood from 481 subjects and assessed mucosal gene expression using Illumina HumanHT-12v4 arrays in relation to germline genotype. Expression quantitative trait loci (eQTLs) were explored by anatomical location of sampling. The rs3087967 genotype (chr11q23.1 risk variant) exhibited significant site-specific effects-risk of distal CRC (odds ratio [OR] = 1.20, P = 8.20 × 10-20 ) with negligible effects on proximal CRC risk (OR = 1.05, P = .10). Expression of 1261 genes differed between proximal and distal colonic mucosa (top hit PRAC gene, fold-difference = 10, P = 3.48 × 10-57 ). In eQTL studies, rs3087967 genotype was associated with expression of 8 cis- and 21 trans-genes. Four of these (AKAP14, ADH5P4, ASGR2, RP11-342M1.7) showed differential effects by site, with strongest trans-eQTL signals in proximal colonic mucosa (eg, AKAP14, beta = 0.61, P = 5.02 × 10-5 ) and opposite signals in distal mucosa (AKAP14, beta = -0.17, P = .04). In summary, genetic variation at the chr11q23.1 risk locus imparts greater risk of distal rather than proximal CRC and exhibits site-specific differences in eQTL effects in normal mucosa. Topographical differences in genomic control over gene expression relevant to CRC risk may underlie site-specific variation in CRC. Results may inform individualised CRC screening programmes.
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Affiliation(s)
- Peter G Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Maria Timofeeva
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Department of Public Health, D-IAS, Danish Institute for Advanced Study, University of Southern Denmark, Odense, Denmark
| | - Li-Yin Ooi
- Department of Pathology, National University Hospital, Singapore
| | - Victoria Svinti
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Graeme Grimes
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Claire Smillie
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - James P Blackmur
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Kevin Donnelly
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Evi Theodoratou
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Harry Campbell
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Lina Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin, Ireland
| | - Farhat V N Din
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Susan M Farrington
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Malcolm G Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
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13
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Weixler B, Ramser M, Warschkow R, Viehl CT, Vaughan-Shaw PG, Zettl A, Kettelhack C, Zuber M. The Value of Sentinel Lymph Node Mapping for the Staging of Node-Negative Colon Cancer: Propensity Score and Mediation Analyses. Ann Surg Open 2021; 2:e084. [PMID: 37635823 PMCID: PMC10455289 DOI: 10.1097/as9.0000000000000084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 06/29/2021] [Indexed: 11/27/2022] Open
Abstract
Objectives Mediation analysis to assess the protective impact of sentinel lymph node (SLN) mapping on prognosis and survival of patients with colon cancer through a more precise evaluation of the lymph node (LN) status. Background Up to 20% of patients with node-negative colon cancer develop disease recurrence. Conventional histopathological LN examination may be limited in describing the real metastatic burden of LN. Methods Data of 312 patients with stage I & II colon cancer was collected prospectively. Patients were either staged using intraoperative SLN mapping with multilevel sectioning and immunohistochemical staining of the SLN or conventional techniques. The value of the SLN mapping for the detection of truly node-negative patients was assessed using Cox regression and mediation analysis. Results SLN mapping was performed in 143 patients. Disease recurrence was observed in 13 (9.1%) patients staged with SLN mapping and in 27 (16%) staged conventionally. Five-year overall survival (OS) rate was 82.7% (95% confidence interval [CI], 76.5-89.4%) with SLN mapping compared with 65.8% (95% CI, 58.8-73.7%). Five-year cancer-specific survival (CSS) was 95.1% (95% CI, 91.3-99.0%) with SLN mapping compared with 92.5% (95% CI, 88.0-97.2%). Node-negative staging with SLN mapping was associated with significantly better OS (hazard ratio [HR], 0.64; 95% CI, 0.56-0.72; P < 0.001) and CSS (HR, 0.49; 95% CI, 0.39-0.61; P < 0.001) in multivariate analysis. Mediation analysis confirmed a direct protective effect of SLN mapping on OS (HR, 0.78; 95% CI, 0.52-0.96; P < 0.01) and disease-free survival (DFS) (HR, 0.75; 95% CI, 0.48-0.89; P < 0.01). Conclusions Staging performed by SLN mapping with multilevel sectioning provides more accurate results than conventional staging. The observed clinically relevant and statistically significant benefit in OS and DFS is explained by a more accurate detection of positive LN by SLN mapping.
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Affiliation(s)
- Benjamin Weixler
- From the Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité University of Medicine Berlin, Berlin, Germany
| | - Michaela Ramser
- Department of Surgery, Cantonal Hospital Olten, Olten, Switzerland
| | - Rene Warschkow
- Department of Surgery, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Carsten T. Viehl
- Department of Surgery, Hospital Center Biel/Bienne, Biel/Bienne, Switzerland
| | - Peter G. Vaughan-Shaw
- Colorectal Unit, Western General Hospital, University of Edinburgh, Edinburgh, United Kingdom
| | - Andreas Zettl
- Viollier AG, Histopathology/Cytology, Basel, Switzerland
| | - Christoph Kettelhack
- Clarunis Visceral Medicine Center, St. Clara Hospital & University Hospital Basel, Basel, Switzerland
| | - Markus Zuber
- Department of Surgery, Cantonal Hospital Olten, Olten, Switzerland
- Clarunis Visceral Medicine Center, St. Clara Hospital & University Hospital Basel, Basel, Switzerland
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14
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Vaughan-Shaw PG, Grimes G, Blackmur JP, Timofeeva M, Walker M, Ooi LY, Svinti V, Donnelly K, Din FVN, Farrington SM, Dunlop MG. Oral vitamin D supplementation induces transcriptomic changes in rectal mucosa that are linked to anti-tumour effects. BMC Med 2021; 19:174. [PMID: 34340708 PMCID: PMC8330024 DOI: 10.1186/s12916-021-02044-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/23/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The risk for several common cancers is influenced by the transcriptomic landscape of the respective tissue-of-origin. Vitamin D influences in vitro gene expression and cancer cell growth. We sought to determine whether oral vitamin D induces beneficial gene expression effects in human rectal epithelium and identify biomarkers of response. METHODS Blood and rectal mucosa was sampled from 191 human subjects and mucosa gene expression (HT12) correlated with plasma vitamin D (25-OHD) to identify differentially expressed genes. Fifty subjects were then administered 3200IU/day oral vitamin D3 and matched blood/mucosa resampled after 12 weeks. Transcriptomic changes (HT12/RNAseq) after supplementation were tested against the prioritised genes for gene-set and GO-process enrichment. To identify blood biomarkers of mucosal response, we derived receiver-operator curves and C-statistic (AUC) and tested biomarker reproducibility in an independent Supplementation Trial (BEST-D). RESULTS Six hundred twenty-nine genes were associated with 25-OHD level (P < 0.01), highlighting 453 GO-term processes (FDR<0.05). In the whole intervention cohort, vitamin D supplementation enriched the prioritised mucosal gene-set (upregulated gene-set P < 1.0E-07; downregulated gene-set P < 2.6E-05) and corresponding GO terms (P = 2.90E-02), highlighting gene expression patterns consistent with anti-tumour effects. However, only 9 individual participants (18%) showed a significant response (NM gene-set enrichment P < 0.001) to supplementation. Expression changes in HIPK2 and PPP1CC expression served as blood biomarkers of mucosal transcriptomic response (AUC=0.84 [95%CI 0.66-1.00]) and replicated in BEST-D trial subjects (HIPK2 AUC=0.83 [95%CI 0.77-0.89]; PPP1CC AUC=0.91 [95%CI 0.86-0.95]). CONCLUSIONS Higher plasma 25-OHD correlates with rectal mucosa gene expression patterns consistent with anti-tumour effects, and this beneficial signature is induced by short-term vitamin D supplementation. Heterogenous gene expression responses to vitamin D may limit the ability of randomised trials to identify beneficial effects of supplementation on CRC risk. However, in the current study blood expression changes in HIPK2 and PPP1CC identify those participants with significant anti-tumour transcriptomic responses to supplementation in the rectum. These data provide compelling rationale for a trial of vitamin D and CRC prevention using easily assayed blood gene expression signatures as intermediate biomarkers of response.
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Affiliation(s)
- P G Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - G Grimes
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - J P Blackmur
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - M Timofeeva
- DIAS, Danish Institute for Advanced Study, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Deanery of Molecular, Genetic & Population Health Sciences, in the College of Medicine & Veterinary Medicine, University of Edinburgh, Edinburgh, UK
| | - M Walker
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - L Y Ooi
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Department of Pathology, National University Hospital, National University Health System, Singapore, Singapore
| | - Victoria Svinti
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Kevin Donnelly
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - F V N Din
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - S M Farrington
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - M G Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK.
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
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Vaughan-Shaw PG, Fletcher J, El-Sayed C, Sarmah P, Gregoir T, Potter M. The Dukes' Club Fundamentals of Colorectal Surgery video series: End-to-end single layer handsewn ileocolic anastomosis - a video vignette. Colorectal Dis 2021; 23:1940. [PMID: 33825284 DOI: 10.1111/codi.15667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 02/08/2023]
Affiliation(s)
- Peter G Vaughan-Shaw
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Jordan Fletcher
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Charlotte El-Sayed
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Panchali Sarmah
- Dukes' Club, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, London, UK
| | - Tine Gregoir
- Department of Coloproctology, University of Edinburgh, Western General Hospital, Edinburgh, UK
| | - Mark Potter
- Department of Coloproctology, University of Edinburgh, Western General Hospital, Edinburgh, UK
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Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries. Lancet 2021; 397:387-397. [PMID: 33485461 PMCID: PMC7846817 DOI: 10.1016/s0140-6736(21)00001-5] [Citation(s) in RCA: 104] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/02/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND 80% of individuals with cancer will require a surgical procedure, yet little comparative data exist on early outcomes in low-income and middle-income countries (LMICs). We compared postoperative outcomes in breast, colorectal, and gastric cancer surgery in hospitals worldwide, focusing on the effect of disease stage and complications on postoperative mortality. METHODS This was a multicentre, international prospective cohort study of consecutive adult patients undergoing surgery for primary breast, colorectal, or gastric cancer requiring a skin incision done under general or neuraxial anaesthesia. The primary outcome was death or major complication within 30 days of surgery. Multilevel logistic regression determined relationships within three-level nested models of patients within hospitals and countries. Hospital-level infrastructure effects were explored with three-way mediation analyses. This study was registered with ClinicalTrials.gov, NCT03471494. FINDINGS Between April 1, 2018, and Jan 31, 2019, we enrolled 15 958 patients from 428 hospitals in 82 countries (high income 9106 patients, 31 countries; upper-middle income 2721 patients, 23 countries; or lower-middle income 4131 patients, 28 countries). Patients in LMICs presented with more advanced disease compared with patients in high-income countries. 30-day mortality was higher for gastric cancer in low-income or lower-middle-income countries (adjusted odds ratio 3·72, 95% CI 1·70-8·16) and for colorectal cancer in low-income or lower-middle-income countries (4·59, 2·39-8·80) and upper-middle-income countries (2·06, 1·11-3·83). No difference in 30-day mortality was seen in breast cancer. The proportion of patients who died after a major complication was greatest in low-income or lower-middle-income countries (6·15, 3·26-11·59) and upper-middle-income countries (3·89, 2·08-7·29). Postoperative death after complications was partly explained by patient factors (60%) and partly by hospital or country (40%). The absence of consistently available postoperative care facilities was associated with seven to 10 more deaths per 100 major complications in LMICs. Cancer stage alone explained little of the early variation in mortality or postoperative complications. INTERPRETATION Higher levels of mortality after cancer surgery in LMICs was not fully explained by later presentation of disease. The capacity to rescue patients from surgical complications is a tangible opportunity for meaningful intervention. Early death after cancer surgery might be reduced by policies focusing on strengthening perioperative care systems to detect and intervene in common complications. FUNDING National Institute for Health Research Global Health Research Unit.
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Vaughan-Shaw PG, Buijs LF, Blackmur JP, Theodoratou E, Zgaga L, Din FVN, Farrington SM, Dunlop MG. The effect of vitamin D supplementation on survival in patients with colorectal cancer: systematic review and meta-analysis of randomised controlled trials. Br J Cancer 2020; 123:1705-1712. [PMID: 32929196 PMCID: PMC7686489 DOI: 10.1038/s41416-020-01060-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Low circulating vitamin D levels are associated with poor colorectal cancer (CRC) survival. We assess whether vitamin D supplementation improves CRC survival outcomes. METHODS PubMed and Web of Science were searched. Randomised controlled trial (RCTs) of vitamin D supplementation reporting CRC mortality were included. RCTs with high risk of bias were excluded from analysis. Random-effects meta-analysis models calculated estimates of survival benefit with supplementation. The review is registered on PROSPERO, registration number: CRD42020173397. RESULTS Seven RCTs (n = 957 CRC cases) were identified: three trials included patients with CRC at outset, and four population trials reported survival in incident cases. Two RCTs were excluded from meta-analysis (high risk of bias; no hazard ratio (HR)). While trials varied in inclusion criteria, intervention dose and outcomes, meta-analysis found a 30% reduction in adverse CRC outcomes with supplementation (n = 815, HR = 0.70; 95% confidence interval (CI): 0.48-0.93). A beneficial effect was seen in trials of CRC patients (progression-free survival, HR = 0.65; 95% CI: 0.36-0.94), with suggestive effect in incident CRC cases from population trials (CRC-specific survival, HR = 0.76; 95% CI: 0.39-1.13). No heterogeneity or publication bias was noted. CONCLUSIONS Meta-analysis demonstrates a clinically meaningful benefit of vitamin D supplementation on CRC survival outcomes. Further well-designed, adequately powered RCTs are needed to fully evaluate benefit of supplementation in augmenting 'real-life' follow-up and adjuvant chemotherapy regimens, as well as determining optimal dosing.
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Affiliation(s)
- Peter G Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Louis F Buijs
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - James P Blackmur
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Evi Theodoratou
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Lina Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin, Ireland
| | - Farhat V N Din
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Susan M Farrington
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Malcolm G Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK.
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK.
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Vaughan-Shaw PG, Ramser M, Kwok A, Anderson D, Potter MA, Paterson HM. Re: 'Clinical impact of leakage in patients with handsewn vs stapled anastomosis after right hemicolectomy: a retrospective study'. Colorectal Dis 2020; 22:1446. [PMID: 32579739 DOI: 10.1111/codi.15207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 02/08/2023]
Affiliation(s)
- P G Vaughan-Shaw
- Department of Coloproctology, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - M Ramser
- Department of Coloproctology, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - A Kwok
- Department of Coloproctology, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - D Anderson
- Department of Coloproctology, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - M A Potter
- Department of Coloproctology, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - H M Paterson
- Department of Coloproctology, Western General Hospital, University of Edinburgh, Edinburgh, UK
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Vaughan-Shaw PG, Zgaga L, Ooi LY, Theodoratou E, Timofeeva M, Svinti V, Walker M, O'Sullivan F, Ewing A, Johnston S, Din FVN, Campbell H, Farrington SM, Dunlop MG. Low plasma vitamin D is associated with adverse colorectal cancer survival after surgical resection, independent of systemic inflammatory response. Gut 2020; 69:103-111. [PMID: 31023832 PMCID: PMC6943245 DOI: 10.1136/gutjnl-2018-317922] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/04/2019] [Accepted: 03/26/2019] [Indexed: 12/31/2022]
Abstract
OBJECTIVE We assessed the effect of surgical resection of colorectal cancer (CRC) on perioperative plasma vitamin D (25OHD) and C-reactive protein (CRP) level. We investigated the relationship between circulating vitamin D level and CRC survival. DESIGN We sequentially sampled 92 patients undergoing CRC resection, and measured plasma 25OHD and CRP. For survival analyses, we assayed 25OHD and CRP in two temporally distinct CRC patient cohorts (n=2006, n=2100) and investigated the association between survival outcome, circulating vitamin D and systemic inflammatory response. RESULTS Serial sampling revealed a postoperative fall (mean 17.3 nmol/L; p=3.6e-9) in plasma 25OHD (nadir days 1-2). CRP peaked 3-5 days postoperatively (143.1 mg/L; p=1.4e-12), yet the postoperative fall in 25OHD was independent of CRP. In cohort analyses, 25OHD was lower in the 12 months following operation (mean=48.8 nmol/L) than preoperatively (54.8 nmol/L; p=1.2e-5) recovering after 24 months (52.2 nmol/L; p=0.002). Survival analysis in American Joint Committee on Cancer stages I-III demonstrated associations between 25OHD tertile and CRC mortality (HR=0.69; 95% CI 0.46 to 0.91) and all-cause mortality (HR=0.68; 95% CI 0.50 to 0.85), and was independent of CRP. We observed interaction effects between plasma 25OHD and rs11568820 genotype (functional VDR polymorphism) with a strong protective effect of higher 25OHD only in patients with GG genotype (HR=0.51; 95% CI 0.21 to 0.81). We developed an online tool for predicted survival (https://apps.igmm.ed.ac.uk/mortalityCalculator/) that incorporates 25OHD with clinically useful predictive performance (area under the curve 0.77). CONCLUSIONS CRC surgery induces a fall in circulating 25OHD. Plasma 25OHD level is a prognostic biomarker with low 25OHD associated with poorer survival, particularly in those with rs11568820 GG genotype. A randomised trial of vitamin D supplementation after CRC surgery has compelling rationale.
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Affiliation(s)
- P G Vaughan-Shaw
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - L Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Republic of Ireland
| | - L Y Ooi
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - E Theodoratou
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - M Timofeeva
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - V Svinti
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - M Walker
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - F O'Sullivan
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Republic of Ireland
| | - A Ewing
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - S Johnston
- Specialist Endocrine Laboratory, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - F V N Din
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - H Campbell
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - S M Farrington
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - M G Dunlop
- Cancer Research UK Edinburgh Centre and MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
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Vaughan-Shaw PG, Zgaga L, Theodoratou E, Blackmur JP, Dunlop MG. Whether vitamin D supplementation protects against colorectal cancer risk remains an open question. Eur J Cancer 2019; 115:1-3. [PMID: 31082686 DOI: 10.1016/j.ejca.2019.03.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 03/31/2019] [Indexed: 11/22/2022]
Affiliation(s)
- P G Vaughan-Shaw
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom; MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - L Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Ireland
| | - E Theodoratou
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom; Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, United Kingdom
| | - J P Blackmur
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom; MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - M G Dunlop
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom; MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom.
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Vaughan-Shaw PG, Gash K, Adams K, Vallance AE, Pilkington SA, Torkington J, Cornish JA. Protocol for a multicentre, dual prospective and retrospective cohort study investigating timing of ileostomy closure after anterior resection for rectal cancer: The CLOSurE of Ileostomy Timing (CLOSE-IT) study. BMJ Open 2018; 8:e023305. [PMID: 30327406 PMCID: PMC6196810 DOI: 10.1136/bmjopen-2018-023305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION A defunctioning ileostomy is often formed during rectal cancer surgery to reduce the potentially fatal sequelae of anastomotic leak. Once the ileostomy is closed and bowel continuity restored, many patients can suffer poor bowel function, that is, low anterior resection syndrome (LARS). It has been suggested that delay to closure can increase incidence of LARS which is known to significantly reduce quality of life. Despite this, within the UK, time to closure of ileostomy is not subject to national targets within the National Health Service and delay to closure exceeds 18 months in one-third of patients. Clinical factors, surgeon and patient preference or service pressures may all impact time to closure, yet to date no study has investigated this. The aim of this UK-wide study is to assess time to ileostomy closure and identify reasons for delays. METHODS AND ANALYSIS A UK-wide multicentre prospective snapshot study, together with retrospective analysis of ileostomy closure through The Dukes' Club Research Collaborative including patients undergoing ileostomy closure in a 3-month period (April to June 2018) and all patients who underwent anterior resection and ileostomy formation over a historical 12-month period (2015). Time to closure and incidence of 'non-closure' will be calculated. Units will be surveyed to determine local clinical and management protocols and barriers to timely closure. Multivariate linear regression analysis will be used to determine factors significantly associated with delay to ileostomy closure. ETHICS AND DISSEMINATION Study approved by the South West-Exeter Research Ethics Committee and the Health Research Authority. Study results will be submitted for presentation at international conferences and for publication in peer-reviewed journals. Results will be presented to and discussed with the patient and public representatives and relevant national bodies to facilitate the development of consensus guidelines on optimum treatment pathways.
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Affiliation(s)
- Peter G Vaughan-Shaw
- Dukes' Club Research Collaborative, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, Edinburgh, UK
| | - Katherine Gash
- Dukes' Club Research Collaborative, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, Edinburgh, UK
| | - Katie Adams
- Dukes' Club Research Collaborative, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, Edinburgh, UK
| | - Abigail E Vallance
- Dukes' Club Research Collaborative, Association of Coloproctology of Great Britain and Ireland, Royal College of Surgeons of England, Edinburgh, UK
| | - Sophie A Pilkington
- Department of Colorectal Surgery, University Hospital Southampton, Southampton, UK
| | - Jared Torkington
- Department of Colorectal Surgery, University Hospital of Wales, Cardiff, UK
| | - Julie A Cornish
- Department of Colorectal Surgery, University Hospital of Wales, Cardiff, UK
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Zgaga L, Vaughan-Shaw PG, O’Sullivan F, Farrington SM, Theodoratou E, Campbell H, Dunlop MG. Reply to 'Comment on 'The impact of vitamin D pathway genetic variation and circulating 25-hydroxyvitamin D on cancer outcome: systematic review and meta-analysis''. Br J Cancer 2017; 117:e4. [PMID: 28641317 PMCID: PMC5520522 DOI: 10.1038/bjc.2017.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- L Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Ireland
| | - P G Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
| | - F O’Sullivan
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Ireland
| | - S M Farrington
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
| | - E Theodoratou
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH164UX, UK
| | - H Campbell
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH164UX, UK
| | - M G Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
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Vaughan-Shaw PG, O'Sullivan F, Farrington SM, Theodoratou E, Campbell H, Dunlop MG, Zgaga L. The impact of vitamin D pathway genetic variation and circulating 25-hydroxyvitamin D on cancer outcome: systematic review and meta-analysis. Br J Cancer 2017; 116:1092-1110. [PMID: 28301870 PMCID: PMC5396104 DOI: 10.1038/bjc.2017.44] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/20/2017] [Accepted: 01/26/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Vitamin D has been linked with improved cancer outcome. This systematic review and meta-analysis investigates the relationship between cancer outcomes and both vitamin D-related genetic variation and circulating 25-hydroxyvitamin D (25OHD) concentration. METHODS A systematic review and meta-analysis of papers until November 2016 on PubMed, EMBASE and Web of Science pertaining to association between circulating vitamin D level, functionally relevant vitamin D receptor genetic variants and variants within vitamin D pathway genes and cancer survival or disease progression was performed. RESULTS A total of 44 165 cases from 64 studies were included in meta-analyses. Higher 25OHD was associated with better overall survival (hazard ratio (HR=0.74, 95% CI: 0.66-0.82) and progression-free survival (HR=0.84, 95% CI: 0.77-0.91). The rs1544410 (BsmI) variant was associated with overall survival (HR=1.40, 95% CI: 1.05-1.75) and rs7975232 (ApaI) with progression-free survival (HR=1.29, 95% CI: 1.02-1.56). The rs2228570 (FokI) variant was associated with overall survival in lung cancer patients (HR=1.29, 95% CI: 1.0-1.57), with a suggestive association across all cancers (HR=1.26, 95% CI: 0.96-1.56). CONCLUSIONS Higher 25OHD concentration is associated with better cancer outcome, and the observed association of functional variants in vitamin D pathway genes with outcome supports a causal link. This analysis provides powerful background rationale to instigate clinical trials to investigate the potential beneficial effect of vitamin D in the context of stratification by genotype.
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Affiliation(s)
- P G Vaughan-Shaw
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
| | - F O'Sullivan
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Republic of Ireland
| | - S M Farrington
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
| | - E Theodoratou
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH164UX, UK
| | - H Campbell
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh EH164UX, UK
| | - M G Dunlop
- MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH42XU, UK
| | - L Zgaga
- Department of Public Health and Primary Care, Trinity College Dublin, Dublin 24, Republic of Ireland
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Vaughan-Shaw PG, Walker M, Ooi L, Gilbert N, Farrington SM, Dunlop MG. A simple method to overcome the inhibitory effect of heparin on DNA amplification. Cell Oncol (Dordr) 2015; 38:493-5. [PMID: 26515719 DOI: 10.1007/s13402-015-0250-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2015] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Genetic material from large patient cohorts is increasingly central to translational genetic research. However, patient blood samples are a finite resource and their supply and storage are often dictated by clinical and not research protocols. Our experience supports difficulty in amplifying DNA from blood stored in herparin; a scenario that other researchers may have or will encounter. This technical note describes a number of simple steps that enable successful PCR amplification. METHODS DNA was extracted using the Illustra Nucleon Genomic DNA Extraction Kit. PCR amplification was attempted using a number of commercially available PCR mastermixes. RESULTS PCR DNA amplification failed using ReddyMix™ PCR Master Mix, Thermo-Start® (Thermo Scientific Inc. US) and ZymoTaq™ (Zymo research, US) PCR mastermixes, as demonstrated absence of products on gel electrophoresis. However, using the Invitrogen™ (Thermo Scientific Inc., US) Platinum® Taq DNA Polymerase, PCR products were identified on a 1% agarose gel for all samples. PCR products were cleaned with ExoSAP-IT® (Affymetrix Inc., US) and a sequencing reaction undertaken using a standard Big Dye protocol. Subsequent genotyping was successful for all samples for alleles at the CDH1 locus. CONCLUSION From our experience a standard phenol/chloroform purification and using the Invitrogen™ Platinum® Taq has enabled the amplification of whole blood samples taken into lithium heparin and stored frozen for up to a month. This simple method may enable investigators to utilise blood taken in lithium heparin for DNA extraction and amplification.
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Affiliation(s)
- P G Vaughan-Shaw
- Colon Cancer Genetics Group, Institute of Genetics and Molecular Medicine, University of Edinburgh and MRC Human Genetics Unit, Western General Hospital Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK.
| | - M Walker
- Colon Cancer Genetics Group, Institute of Genetics and Molecular Medicine, University of Edinburgh and MRC Human Genetics Unit, Western General Hospital Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
| | - L Ooi
- Colon Cancer Genetics Group, Institute of Genetics and Molecular Medicine, University of Edinburgh and MRC Human Genetics Unit, Western General Hospital Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
| | - N Gilbert
- Chromatin Biology, MRC Human Genetics Unit, University of Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
| | - S M Farrington
- Colon Cancer Genetics Group, Institute of Genetics and Molecular Medicine, University of Edinburgh and MRC Human Genetics Unit, Western General Hospital Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
| | - M G Dunlop
- Colon Cancer Genetics Group, Institute of Genetics and Molecular Medicine, University of Edinburgh and MRC Human Genetics Unit, Western General Hospital Edinburgh, Crewe Road, Edinburgh, EH4 2XU, UK
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Vaughan-Shaw PG, Aung M, Knight H, Williams T, Borley NR, Wheeler JMD. Systematic analysis of missed colorectal cancer cases and common pitfalls in diagnosis. Frontline Gastroenterol 2015; 6:232-240. [PMID: 28839816 PMCID: PMC5369597 DOI: 10.1136/flgastro-2014-100513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 12/05/2014] [Accepted: 12/16/2014] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Missed colorectal cancer on endoscopic or radiological investigations may delay diagnosis and impact outcome. This study audits incidence of previous investigations in patients with colorectal cancer, considers outcome in 'missed' cancer cases and examines the diagnostic pathway in the derived case series to identify common pitfalls in diagnosis. METHODS Patients diagnosed with colorectal cancer in 2011 at a single National Health Service (NHS) Trust were reviewed. Incidence of endoscopic and radiological investigations in the 3 years preceding diagnosis and outcome data were collected. Cases of prior investigation not leading to diagnosis were considered 'missed' cancers and survival compared with 'detected' cases. The diagnostic pathway in each 'missed' case was reviewed. RESULTS 395 colorectal cancer cases were studied. Eighteen (4.6%) patients underwent previous investigation including colonoscopy (n=4), flexible sigmoidoscopy (n=5), barium enema (n=5) and diagnostic abdominal CT scan (n=12), median 708 days prior to diagnosis. Previous investigation predicted reduced overall and disease-free survival (HR 2.07, p=0.04 and HR 2.66, p<0.0001), after age and gender adjustment. Ten different categories termed 'pitfalls' were derived from analysis of the diagnostic pathway. These included CT scanning for abdominal pain without further investigation (n=7), rectosigmoid cancer following a previous diagnosis of diverticular disease (n=4) and incomplete diagnostic investigations without adequate follow-up (n=3). CONCLUSIONS A proportion of patients diagnosed with colorectal cancer have previously been investigated for gastrointestinal symptoms and survival appears reduced in these patients. Regular audit and analysis of previous investigations can identify common pitfalls in diagnosis, which should be used to inform training and improve practice.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - M Aung
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - H Knight
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - T Williams
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - N R Borley
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - J M D Wheeler
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
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Vaughan-Shaw PG, Wheeler JMD, Borley NR. The impact of a dedicated multidisciplinary team on the management of early rectal cancer. Colorectal Dis 2015; 17:704-9. [PMID: 25704245 DOI: 10.1111/codi.12922] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 12/31/2014] [Indexed: 12/13/2022]
Abstract
AIM Local excision of early rectal cancer (ERCa) offers comparable survival and reduced operative morbidity compared with radical surgery, yet it risks an adverse oncological outcome if performed in the wrong setting. This retrospective review considers the impact of the introduction of a specialist early rectal cancer multidisciplinary team (ERCa MDT) on the investigation and management of ERCa. METHOD A retrospective comparative cohort study was undertaken. Patients with a final diagnosis of pT1 rectal cancer at our unit were identified for two 12-month periods before and after the introduction of the specialist ERCa MDT. Data on investigations and therapeutic interventions were compared. RESULTS Nineteen patients from 2006 and 24 from 2011 were included. In 2006, 12 patients underwent MRI and four transrectal ultrasound (TRUS) examination, while in 2011, 18 and 20, respectively, received MRI and TRUS. In 2006 four patients underwent incidental ERCa polypectomy, with all having a positive resection margin leading to anterior resection. In 2011 only one case with a positive margin following extended endoscopic mucosal resection was identified. Definitive local excision without subsequent resection occurred in two patients in 2006 and in 16 in 2011. CONCLUSION The study demonstrates an improvement in preoperative ERCa staging, a reduction in margin positivity and an increase in the use of local excision following the implementation of a specialist ERCa MDT. The increased detection of rectal neoplasms through screening and surveillance programmes requires further investigation and management. A specialist ERCa MDT will improve management and should be available to all practitioners involved with patients with ERCa.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - J M D Wheeler
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
| | - N R Borley
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
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Vaughan-Shaw PG, Aung M, Sahnan K, Rai P, Goodman A. Findings on interval colonoscopies: an auditable performance indicator for colonoscopy quality? Frontline Gastroenterol 2014; 5:249-253. [PMID: 28839781 PMCID: PMC5369743 DOI: 10.1136/flgastro-2014-100439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 03/27/2014] [Accepted: 04/02/2014] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE An important marker of colonoscopy quality is detection of pathology and incidence of missed pathology. Back-to-back colonoscopies cannot ethically be performed for quality assurance alone yet may be required for clinical reasons. This study aims to investigate the incidence of new findings in colonoscopies repeated within a 12 month period and considers the role of such an analysis in the assessment of colonoscopy quality. DESIGN All colonoscopies performed over a 3-year period at an endoscopy training unit were studied. Colonoscopies repeated within a 12-month period were analysed. RESULTS 5747 colonoscopies were performed over the study period. 137 repeat colonoscopies were included with median interval from initial colonoscopy of 174 days. 19 (14%) repeat colonoscopies yielded new findings including one cancer, 234 days following a normal colonoscopy. Additional polyps were identified in 13 colonoscopies indicating a missed polyp rate of 9%. In these, a median number of two polyps per colonoscopy with median size 5.5 mm were found. There was no morbidity associated with repeat colonoscopy in this series. New findings on repeat colonoscopy appeared more likely following initial colonoscopy by non-consultant non-training grade endoscopists (23% vs 11%, p=0.09) yet small numbers involved preclude meaningful comparison. CONCLUSIONS Analysis of clinically indicated repeat colonoscopies and rate of detection of new pathology may offer utility in colonoscopy quality assurance and would offer a direct assessment of the most important aspect of colonoscopy quality.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, GLOS, UK
| | - M Aung
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, GLOS, UK
| | - K Sahnan
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, GLOS, UK
| | - P Rai
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, GLOS, UK
| | - A Goodman
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, GLOS, UK
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Vaughan-Shaw PG, Cutting J, Borley N, Brooklyn T, Wheeler JMD. Two-week wait symptoms are prevalent in screened patients with a positive faecal occult blood test but do not predict cancer. Colorectal Dis 2014; 16:40-7. [PMID: 24103034 DOI: 10.1111/codi.12422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 06/13/2013] [Indexed: 12/24/2022]
Abstract
AIM Lower gastrointestinal (LGI) symptoms are prevalent in patients screened for bowel cancer yet do not predict a finding of cancer. This study evaluates symptoms in patients with these characteristics against the 2-week wait (2ww) criteria to determine whether they predicted cancer in these patients. METHOD A prospective cohort study was performed. Patients with a positive faecal occult blood (FOB) test attending our unit over a 7-month period were included. Data on symptom prevalence, frequency and duration were collected and assessed against the 2ww criteria. Associations between symptom prevalence and patient outcome were investigated using the χ(2) test. RESULTS Three hundred and ninety-seven patients were included and 37 (9%) were found to have colorectal cancer (CRC). The prevalence of undefined LGI symptoms was 71% and appeared comparable between those with and without CRC (65 vs 72%, P = 0.385). 2ww symptoms were reported in 147 (37%), with 2ww change in bowel habit in 10% and 2ww rectal bleeding in 31%. 2ww symptom prevalence was similar in those with and without cancer (38 vs 37%, P = 0.915). No significant differences in overall 2ww prevalence or prevalence of individual 2ww symptoms were demonstrated between those with a normal colonoscopy or one showing cancer, polyps or other pathology. Twenty nine per cent of patients with 2ww symptoms had reported these to their GP. CONCLUSION Undefined LGI symptoms are prevalent in FOB-positive patients but do not predict CRC. 2ww symptoms are also highly prevalent, yet similarly fail to predict cancer. Further efforts to increase public awareness of cancer symptoms are required, whilst false reassurance from a negative FOB result should be discouraged.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
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Vaughan-Shaw PG, Saunders J, Smith T, King AT, Stroud MA. Oedema is associated with clinical outcome following emergency abdominal surgery. Ann R Coll Surg Engl 2013; 95:390-6. [PMID: 24025285 DOI: 10.1308/003588413x13629960046552] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Oedema is observed frequently following surgery and may be associated with worse outcomes. To date, no study has investigated the role of oedema in the emergency surgical patient. This study assesses the incidence of oedema following emergency abdominal surgery and the value of early postoperative oedema measurement in predicting clinical outcome. METHODS A prospective cohort study of patients undergoing emergency abdominal surgery at a university unit over a two-month period was undertaken. Nutritional and clinical outcome data were collected and oedema was measured in the early postoperative period. Predictors of oedema and outcomes associated with postoperative oedema were identified through univariate and multivariate analysis. RESULTS Overall, 55 patients (median age: 66 years) were included in the study. Postoperative morbidity included ileus (n=22) and sepsis (n=6) with 12 deaths at follow-up. Postoperative oedema was present in 19 patients and was associated with prolonged perioperative fasting (107 vs 30 hours, p=0.009) but not with body mass index (24 kg/m(2) vs 27 kg/m(2), p=0.169) or preadmission weight loss (5% vs 3%, p=0.923). On multivariate analysis, oedema was independently associated with gastrointestinal recovery (B=6.91, p=0.038), artificial nutritional support requirement (odds ratio: 6.91, p=0.037) and overall survival (χ(2) =13.1, df=1, p=0.001). CONCLUSIONS Generalised oedema is common after emergency abdominal surgery and appears to independently predict gastrointestinal recovery, the need for artificial nutritional support and survival. Oedema is not associated with commonly applied markers of nutritional status such as body mass index or recent weight loss. Measurement of oedema offers utility in identifying those at risk of poor clinical outcome or those requiring artificial nutritional support following emergency abdominal surgery.
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Vaughan-Shaw PG, Borley NR, Tomlinson IP, Wheeler JMD. Polypectomy in patients with a family history of colorectal cancer may lead to inadequate surveillance and missed cancers in their kindred. Colorectal Dis 2013; 15:1452-3. [PMID: 24034625 DOI: 10.1111/codi.12405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 06/13/2013] [Indexed: 02/08/2023]
Affiliation(s)
- P G Vaughan-Shaw
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
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Abstract
A patient was admitted as an emergency with bowel obstruction. Recent medical history included an episode of gallstone ileus treated surgically by removal of an enteric calculus. On this admission, an obstructing calculus was removed from the descending colon (gallstone coleus) at laparotomy. However, the postoperative course was complicated by sepsis and the patient died. A CT scan on the second admission and cytology results from a liver abscess suggested gallbladder malignancy as the underlying cause of the cholecystoenteric fistula. The technical challenge and increased mortality associated with cholecystoenteric fistula repair supports simple enterolithotomy as the preferred management of gallstone ileus. However, this case supports the need for a systematic search for all enteric stones at laparotomy and consideration of concurrent or interval cholecystectomy and cholecystoenteric fistula repair to prevent recurrent gallstone ileus and determine underlying pathology.
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Abstract
AIM The inappropriate use of the '2-week wait' pathway for suspected colorectal cancer (CRC2ww) may overload urgent clinics and delay the assessment and investigation of other patients. Those who have been previously referred and investigated for suspected colorectal cancer may present one group that does not warrant repeat urgent referral. This paper aims to identify the incidence and diagnostic yield of repeat CRC2ww referrals. METHOD All CRC2ww patients referred to our unit over a 4-year period were identified retrospectively. Referral indication, outcome and instances of repeat referral were identified from multidisciplinary team, endoscopy and imaging databases. RESULTS In all, 2735 CRC2ww referrals were made over the study period. Of these, 122 were repeated CRC2ww referrals, with the incidence increasing from 2% in 2008 to 6% in 2010 (P = 0.0006). The median time to repeat referral was 1070 days. After initial referral 267 cancers were detected, including 212 colorectal cancers. The diagnostic yield was lower but not significantly so after repeated referral (six cancers) compared with initial referral (5%vs 10%, P = 0.07). CONCLUSION The incidence of repeat referral is low but the diagnostic yield is not insignificant. Exclusion of these patients from urgent assessment and investigation will not significantly reduce workload and may risk missing some patients with cancer.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of Colorectal Surgery, Cheltenham General Hospital, Cheltenham, UK
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Sahnan K, Manjunath A, Vaughan-Shaw PG, Mitsopoulos G. An unexpected finding of a rare intrascrotal lesion: the sertoliform cystadenoma of the rete testis. BMJ Case Rep 2013; 2013:bcr-2012-008439. [PMID: 23429025 DOI: 10.1136/bcr-2012-008439] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 19-year-old man presented with a right testicular swelling. Testicular ultrasound demonstrated areas suspicious for malignancy and so it was decided to proceed for a right radical inguinal orchiectomy. Initial histological examination revealed a multiloculated cystic lesion at the area of the rete testis yet normal testicular parenchyma elsewhere. Specialist histological opinion was sought from the regional teratoma multi-disciplinary team which confirmed the diagnosis of a sertoliform cystadenoma, an extremely rare benign testicular neoplasm. The recognition of the benign nature of the mass enabled complete reassurance to be offered to the patient and avoided further oncological treatment.
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Affiliation(s)
- Kapil Sahnan
- Department of Surgery, Gloucester Royal Hospital, Glocuester, UK
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Sahnan K, McGowan D, Vaughan-Shaw PG, Al-Allak A. Non-specific abdominal pain, an inconclusive CT scan and an unusual and puzzling finding at exploratory laparotomy. BMJ Case Rep 2013; 2013:bcr2012008271. [PMID: 23376671 PMCID: PMC3604275 DOI: 10.1136/bcr-2012-008271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 71-year-old man presented to our hospital with generalised abdominal pain. Initial laboratory investigations were normal and an abdominal CT scan was inconclusive. The following day, persisting pain, generalised tenderness and haemodynamic instability prompted exploratory laparotomy. At laparotomy, two perforations of the proximal jejunum were identified caused by two 3 cm pieces of wood. The pieces of wood were retrieved and the perforations repaired primarily. The postoperative period was complicated by acute confusion but the patient went on to make a full recovery. On direct questioning, the patient was unable to explain the presence of wood within his gastrointestinal tract. One hypothesis was that he may have ingested this material during a period of acute confusion following an elective abdominal aortic aneurysm repair 8 years previously.
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Affiliation(s)
- Kapil Sahnan
- Department of Surgery, Gloucester Royal Hospital, Glocuester, UK
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Vaughan-Shaw PG, King AT, Cheung T, Beck NE, Knight JS, Nichols PH, Nugent KP, Pilkington SA, Smallwood JA, Mirnezami AH. Early experience with laparoscopic extralevator abdominoperineal excision within an enhanced recovery setting: analysis of short-term outcomes and quality of life. Ann R Coll Surg Engl 2011; 93:451-9. [PMID: 21929915 DOI: 10.1308/003588411x588621] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Conventional abdominoperineal excision for low rectal cancer has a higher local recurrence and reduced survival compared to anterior resection. An extralevator abdominoperineal excision (ELAPE) may improve outcome through removal of increased tissue in the distal rectum. Experience with ELAPE is limited and no studies have reported on quality of life (QOL) following this procedure. We describe a minimally invasive approach to ELAPE within an enhanced recovery programme, and present short-term results and QOL analyses. METHODS All laparoscopic ELAPEs were included in a prospective database. Demographics, intra-operative and post-operative outcomes were evaluated. Postoperative QOL was assessed using the European Organisation for Research and Treatment of Cancer (EORTC) questionnaires QLQ-C30 and QLQ-CR29. RESULTS Thirteen laparoscopic ELAPEs were performed over a two-year period. All were enrolled in an enhanced recovery programme. The median age was 76. The median tumour height was 20 mm (range: 0-50 mm) from the dentate line and all patients received neoadjuvant treatment. The median duration of surgery was 300 minutes (range: 120-488 minutes), the mean blood loss was 150 ml and one procedure was converted to open surgery. There was no circumferential resection margin involvement or tumour perforation. The median duration of use of intravenous fluid, patient controlled analgesia and urinary catheterisation was 2, 2 and 2.5 days respectively and the median length of hospital stay was 7.5 days. Two patients developed perineal wound dehiscence. QOL analysis revealed high global health status (90.8), physical (91.3), emotional (98.3) and social functioning (100) scores, which compared favourably with EORTC reference values and published QOL scores following conventional abdominoperineal excision. CONCLUSIONS Laparoscopic ELAPE within an enhanced recovery setting is a feasible and safe approach with acceptable short-term outcomes and post-operative quality of life.
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Manjaly JG, Corlett JC, Dale O, Vaughan-Shaw PG, Frost R. Long-Term Repeated Cricopharyngeal Dilatation for OPMD. Otolaryngol Head Neck Surg 2011. [DOI: 10.1177/0194599811416318a128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: Oculopharyngeal muscular dystrophy (OPMD) is a rare, autosomal dominant, progressive degenerative muscle disorder featuring dysphagia with limited therapeutic options. Cricopharyngeal myotomy improves symptoms, yet dysphagia frequently recurs, failing to prevent aspiration and enteral feeding. The objective is to evaluate safety and efficacy of repeated endoscopic dilatation for OPMD over a 15-year period. Method: All patients at our unit with genetically confirmed OPMD were included. Cricopharyngeal dilatation was performed with a wire-guided 18 mm Savary-Gilliard bougie. Repeat dilatation was offered when symptoms recurred. Symptom severity prior to initial dilatation and at follow-up was evaluated using the Sydney Swallow Questionnaire (SSQ). Results: Nine patients (7 female, 2 male) were included. Median total treatment period was 13 years (range, 3-15 years), median number of dilatations per patient was 7.2 (1-16), and median interval between treatments was 15 months (range, 4.5-45 months). All patients recorded sustained symptom improvement. Mean SSQ score was 1108 out of 1700 (SD ± 272.9) prior to first dilatation and 298 out of 1700 (SD ± 189.1) at last follow-up, representing a 73% decrease (95% CI 52-94) in degree of dysphagia symptoms (Paired t test, P = .0001). All mean scores for individual questions also showed significant improvement ( P < .05). No adverse events were reported with all patients maintaining oral feeding at last follow-up. Conclusion: Repeated cricopharyngeal dilatation is a safe, effective, well-tolerated, and long-lasting treatment for dysphagia in OPMD.
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Manjaly JG, Vaughan-Shaw PG, Dale OT, Tyler S, Corlett JCR, Frost RA. Cricopharyngeal dilatation for the long-term treatment of dysphagia in oculopharyngeal muscular dystrophy. Dysphagia 2011; 27:216-20. [PMID: 21805106 DOI: 10.1007/s00455-011-9356-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Accepted: 07/06/2011] [Indexed: 10/17/2022]
Abstract
Oculopharyngeal muscular dystrophy (OPMD) is a rare autosomal dominant, progressive degenerative muscle disorder featuring dysphagia with limited therapeutic options. The aim of this study was to evaluate the safety and efficacy of repeated endoscopic dilatation for OPMD over a 15-year period. All patients seen at our Regional Swallowing Clinic with OPMD confirmed by genetic analysis were included. Cricopharyngeal dilatation was performed as an outpatient procedure using a wire-guided 18-mm (54 Fr) Savary-Gilliard bougie with the patient under sedation. Patients were offered repeat endoscopic dilatation when symptoms recurred. Symptom severity prior to initial dilatation and at follow-up was evaluated using the Sydney Swallow Questionnaire (SSQ). Nine patients (7 female, 2 male) were included for analysis. Median total treatment period was 13 years (range = 3-15), median number of dilatations per patient was 7.2 (range = 1-16), and median interval between treatments was 15 months (range = 4.5-45). All patients recorded sustained symptom improvement. Mean SSQ score (out of 1,700) was 1,108.11 (SD ± 272.85) prior to first dilatation and 297.78 (SD ± 189.14) at last follow-up, representing a 73% decrease (95% CI = 52-94) in degree of dysphagia symptoms (paired t-test, P = 0.0001). All mean scores for individual questions also showed significant improvement (P < 0.05). No adverse events were reported with all patients maintaining oral feeding at last follow-up. Repeated cricopharyngeal dilatation is a safe, effective, well-tolerated, and long-lasting treatment for dysphagia in OPMD.
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Affiliation(s)
- Joseph G Manjaly
- Departments of ENT and Radiology, Salisbury NHS Foundation Trust, Salisbury, UK.
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Vaughan-Shaw PG, Rees JR, Bell E, Hamdan M, Platt T. Normal inflammatory markers in appendicitis: evidence from two independent cohort studies. JRSM Short Rep 2011; 2:43. [PMID: 21637404 PMCID: PMC3105453 DOI: 10.1258/shorts.2011.010114] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Acute appendicitis is a common surgical condition which can lead to severe complications. Recent work suggested that patients experiencing right lower abdominal pain, with normal white cell count (WCC) and C-reactive protein (CRP) are unlikely to have acute appendicitis and can be discharged. We present two independent data-sets that suggest that this strategy may not be risk-free. DESIGN Retrospective cohort study of consecutive patients from two district general hospitals. Sensitivity and specificity of CRP, WCC and neutrophil count (NC) in predicting appendicitis were calculated. Markers were analysed using Fisher's exact test and Kruskul-Wallace test. SETTING Two district general hospitals in the UK. PARTICIPANTS Patients undergoing appendicectomy for suspected appendicitis. MAIN OUTCOME MEASURES Inflammatory markers and appendix histology. RESULTS A total of 297 patients were included. Appendicitis occurred in four patients with normal CRP, WCC and NC in centre A and 13 patients in centre B. The sensitivity of all three markers combined was 94% (centre A) and 92% (centre B). The specificity was 60% (centre A) and 64% (centre B). No single marker could differentiate uncomplicated and complicated appendicitis, but a raised NC or a CRP >35.5 mg/l predicted complicated appendicitis. CRP, WCC and NC combined differentiated between patients with a normal appendix, uncomplicated appendicitis and complicated appendicitis. CONCLUSIONS Appendicitis in the presence of normal inflammatory markers is not uncommon. We disagree with the view of Sengupta et al. who suggest that patients with normal WCC and CRP are unlikely to have appendicitis, and recommend that clinicians be wary of normal inflammatory markers in patients with a high clinical suspicion of appendicitis.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of Lower GI Surgery, Southampton University Hospitals Foundation Trust , Southampton , UK
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Vaughan-Shaw PG, Pavlou P, Manjaly JG, Ward P. Thromboprophylaxis in trauma: a review of methods, evidence and guidelines. Acta Orthop Belg 2011; 77:1-8. [PMID: 21473437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Venous thromboembolism is a common cause of morbidity and mortality in trauma patients. Mechanical and pharmacological methods of thromboprophylaxis are available and guidelines relating to thromboprophylaxis in trauma include those published by the American College of Chest Physicians, the UK-based National Institute of Clinical Excellence, the Scottish Intercollegiate Guidelines Network and US-based Eastern Association for the Surgery of Trauma. All four guidelines have in common a recommendation for the use of low-molecular-weight heparin except where contraindicated. However, there is little consensus between guidelines relating to which mechanical methods should be used. Given the risk of thromboembolism in trauma patients and increasing interest in this condition clinicians should be aware of local and national guidelines relating to venous thromboembolism prevention in trauma patients. This paper reviews methods of thromboprophylaxis and compares guidelines relating to their use in trauma patients.
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Abstract
OBJECTIVE Medical inpatients have been shown to be at risk of venous thromboembolism (VTE) including fatal pulmonary emboli. Several studies have shown that pharmacological thromboprophylaxis significantly reduces the rates of VTE, yet studies published to date have shown a considerable underuse of thromboprophylaxis in medical patients. This study assesses the current use of thromboprophylaxis in medical patients at our institution and aims to identify simple strategies to improve practice. DESIGN A prospective study of thromboprophylaxis prescription was undertaken on three occasions over a 12-month period. Patients were stratified according to the number of risk factors and standards of thromboprophylaxis assessed according to risk. After the first round of data collection, results were presented, a local guideline was developed and a risk assessment was added to the clerking pro forma. RESULTS There were 122 patients in the first round, 101 in the second and 163 in the third. Eligible moderate and high-risk patients receiving a low molecular weight heparin (LMWH) increased from 31% to 63% (P < 0.005) over the study period. Prescription of thromboembolic deterrent (TED) stockings in those contraindicated to LMWH increased from 23% to 35% although this was not statistically significant (P = 0.08), and the percentage of high-risk patients correctly receiving LMWH, TED stockings or both increased from 22% to 62% (P < 0.0005). Documentation of contraindications to thromboprophylaxis increased from 0% to 59% (P < 0.0005). CONCLUSION This paper demonstrates an initial rate of thromboprophylaxis use considerably less than the ENDORSE trial. However the strategies employed following initial audit resulted in a significant increase in the prescription of both mechanical and pharmacological thromboprophylaxis. This example demonstrates the role of audit education and a risk assessment in stimulating change. Such strategies could be used to ensure compliance to recently published National Institute of Clinical Excellence VTE guidelines. Furthermore this example could be generalized to improve other aspects of care.
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Affiliation(s)
- P G Vaughan-Shaw
- Department of General Surgery, Southampton General Hospital, Tremona Road, Southampton SO166YD, UK.
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Abstract
Cholecystitis caused by Campylobacter is rare with only 14 cases found in the literature. This case describes a 71-year-old man who presented with right hypochondrial abdominal pain due to a gangrenous gallbladder identified at laparotomy. Culture of a bile sample identified a slow-growing gram-negative bacterium identified as Campylobacter jejuni. After a poor clinical response, this identification allowed targeted antibiotic treatment resulting in a slow but successful recovery and discharge 17 days postoperatively. This case demonstrates the importance of considering rare organisms in severe acute cholecystitis and ensuring appropriate cultures are performed, particularly in those who fail to respond to initial antimicrobial treatment.
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Affiliation(s)
- Peter G Vaughan-Shaw
- Salisbury District Hospital, Surgery, Odstock Road, Salisbury, Wiltshire, SP2 8BJ, UK
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