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Beslow LA, Krings T, Kim H, Hetts SW, Lawton MT, Ratjen F, Whitehead KJ, Gossage JR, McCulloch CE, Clancy M, Bagheri N, Faughnan ME. De Novo Brain Vascular Malformations in Hereditary Hemorrhagic Telangiectasia. Pediatr Neurol 2024; 155:120-125. [PMID: 38631080 DOI: 10.1016/j.pediatrneurol.2024.03.013] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/26/2024] [Accepted: 03/15/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Approximately 10% of people with hereditary hemorrhagic telangiectasia (HHT) have brain vascular malformations (VMs). Few reports describe de novo brain VM formation. International HHT Guidelines recommend initial brain VM screening upon HHT diagnosis in children but do not address rescreening. We aimed to confirm whether brain VMs can form de novo in patients with HHT. METHODS The Brain Vascular Malformation Consortium HHT project is a 17-center longitudinal study enrolling patients since 2010. We analyzed the database for de novo VMs defined as those detected (1) on follow-up neuroimaging in a patient without previous brain VMs or (2) in a location distinct from previously identified brain VMs and reported those in whom a de novo VM could be confirmed on central neuroimaging review. RESULTS Of 1909 patients enrolled, 409 (21%) had brain VMs. Seven patients were recorded as having de novo brain VMs, and imaging was available for central review in four. We confirmed that three (0.7% of individuals with brain VMs) had de novo brain VMs (two capillary malformations, one brain arteriovenous malformation) with intervals of six, nine, and 13 years from initial imaging. Two with de novo brain VMs were <18 years. The fourth patient, a child, did not have a de novo brain VM but had a radiologically confirmed increase in size of an existing brain arteriovenous malformation. CONCLUSIONS Brain VMs can, albeit rarely, form de novo in patients with HHT. Given the potential risk of hemorrhage from brain VMs, regular rescreening in patients with HHT may be warranted.
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Affiliation(s)
- Lauren A Beslow
- Division of Neurology, Children's Hospital of Philadelphia, Departments of Neurology and Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Timo Krings
- Division of Neuroradiology, Toronto Western Hospital and University of Toronto, Toronto, Ontario, Canada
| | - Helen Kim
- Department of Anesthesia, University of California - San Francisco, San Francisco, California
| | - Steven W Hetts
- Division of Neurointerventional Radiology, University of California - San Francisco, San Francisco, California
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Felix Ratjen
- Department of Paediatrics, Division of Paediatric Respiratory Medicine, The Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada
| | - Kevin J Whitehead
- Departments of Internal Medicine and Pediatrics, The University of Utah, Salt Lake City, Utah
| | - James R Gossage
- Department of Medicine, Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Charles E McCulloch
- Department of Epidemiology & Biostatistics, University of California - San Francisco, San Francisco, California
| | | | - Negar Bagheri
- Toronto HHT Centre, Department of Medicine, St. Michael's Hospital and Li Ka Shing Knowledge Institute, University of Toronto, Toronto, Ontario, Canada
| | - Marie E Faughnan
- Toronto HHT Centre, Department of Medicine, St. Michael's Hospital and Li Ka Shing Knowledge Institute, University of Toronto, Toronto, Ontario, Canada
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Ola R, Hessels J, Hammill A, Friday C, Clancy M, Al-Samkari H, Meadows S, Iyer V, Akhurst R. Executive summary of the 14th HHT international scientific conference. Angiogenesis 2023; 26:27-37. [PMID: 37695357 PMCID: PMC10543799 DOI: 10.1007/s10456-023-09886-5] [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] [Accepted: 07/12/2023] [Indexed: 09/12/2023]
Abstract
Hereditary Hemorrhagic Telangiectasia (HHT) is an autosomal dominant vascular disorder characterized by small, dilated clustered vessels (telangiectasias) and by larger visceral arteriovenous malformations (AVMs), which directly connect the feeding arteries with the draining veins. These lesions are fragile, prone to rupture, and lead to recurrent epistaxis and/or internal hemorrhage among other complications. Germline heterozygous loss-of-function (LOF) mutations in Bone Morphogenic Protein 9 (BMP9) and BMP10 signaling pathway genes (endoglin-ENG, activin like kinase 1 ACVRL1 aka ALK1, and SMAD4) cause different subtypes of HHT (HHT1, HHT2 and HHT-juvenile polyposis (JP)) and have a worldwide combined incidence of about 1:5000. Expert clinicians and international scientists gathered in Cascais, Portugal from September 29th to October 2nd, 2022 to present the latest scientific research in the HHT field and novel treatment strategies for people living with HHT. During the largest HHT scientific conference yet, participants included 293 in person and 46 virtually. An impressive 209 abstracts were accepted to the meeting and 59 were selected for oral presentations. The remaining 150 abstracts were presented during judged poster sessions. This review article summarizes the basic and clinical abstracts selected as oral presentations with their new observations and discoveries as well as surrounding discussion and debate. Two discussion-based workshops were also held during the conference, each focusing on mechanisms and clinical perspectives in either AVM formation and progression or current and future therapies for HHT. Our hope is that this paper will represent the current progress and the remaining unanswered questions surrounding HHT, in order to serve as an update for those within the field and an invitation to those scientists and clinicians as yet outside of the field of HHT.
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Affiliation(s)
- Roxana Ola
- Cardiovascular Pharmacology Mannheim (EPM), European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Josefien Hessels
- Department of Pulmonology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Adrienne Hammill
- Cancer and Blood Diseases Institute, Division of Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Cassi Friday
- HHT Foundation International, Inc (Cure HHT), Monkton, MD, USA.
| | - Marianne Clancy
- HHT Foundation International, Inc (Cure HHT), Monkton, MD, USA
| | - Hanny Al-Samkari
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Stryder Meadows
- Cell and Molecular Biology Department, Tulane Brain Institute, Tulane University, New Orleans, LA, USA
| | - Vivek Iyer
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
| | - Rosemary Akhurst
- Helen Diller Family Comprehensive Cancer Center and Department of Anatomy, University of California, San Francisco (UCSF), San Francisco, CA, USA
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Jarraya M, Guermazi A, Liew JW, Tolstykh I, Lynch JA, Aliabadi P, Felson DT, Clancy M, Nevitt M, Lewis CE, Torner J, Neogi T. Prevalence of intra-articular mineralization on knee computed tomography: the multicenter osteoarthritis study. Osteoarthritis Cartilage 2023; 31:1111-1120. [PMID: 37088266 PMCID: PMC10524737 DOI: 10.1016/j.joca.2023.04.004] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/23/2023] [Accepted: 04/12/2023] [Indexed: 04/25/2023]
Abstract
OBJECTIVE The aim of this work was to report the prevalence of computed tomography (CT)-detected intra-articular mineralization. DESIGN We included participants from the Multicenter Osteoarthritis (MOST) Study. At the 12th year visit of the MOST study, bilateral knee CTs were first obtained. All participants also had posteroanterior and lateral radiographs of bilateral knees and completed standard questionnaires. Knee radiographs were assessed for Kellgren & Lawrence grade (KLG) and radiographic evidence of intra-articular mineralization. CT images were scored using the Boston University Calcium Knee Score (BUCKS) for cartilage, menisci, ligaments, capsule, and vasculature. Prevalence of intra-articular mineralization was computed for the total sample, and stratified by age, sex, race, Body Mass Index (BMI), presence of frequent knee pain, and KLG. We also determined distribution of mineralization in the cartilage and meniscus, and co-localization. RESULTS 4140 bilateral knees from 2070 participants were included (56.7% female, mean age 61.1 years, mean BMI: 28.8 kg/m2). On radiographs 240 knees (5.8%) had intraarticular mineralization, while CT-detected mineralization was present in 9.8% of knees. Prevalence of hyaline articular and meniscus mineralization increased with age and KL grade, and was similar by sex, BMI categories, and comparable in subjects with and without frequent knee pain. Mineralization tended to be ubiquitous in the joint, most commonly involving all three (medial/lateral tibiofemoral and patellofemoral) compartments (3.1%), while the patellofemoral compartment was the most involved compartment in isolation (1.4%). CONCLUSIONS CT of the knee provides greater visualization of intra-articular mineralization than radiographs and allows better localization of the crystal deposition within the joint. Further studies should focus on the co-localization of intra-articular crystal deposition and corresponding magnetic resonance imaging (MRI)-features of knee osteoarthritis (OA).
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Affiliation(s)
- M Jarraya
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - A Guermazi
- Department of Radiology, VA Healthcare System, Boston University School of Medicine, Boston, MA, USA
| | - J W Liew
- Department of Medicine, Boston University School of Medicine, Boston University, Boston, MA, USA
| | - I Tolstykh
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - J A Lynch
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - P Aliabadi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - D T Felson
- Department of Medicine, Boston University School of Medicine, Boston University, Boston, MA, USA
| | - M Clancy
- Department of Medicine, Boston University School of Medicine, Boston University, Boston, MA, USA
| | - M Nevitt
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - C E Lewis
- Department of Epidemiology, University of Alabama at Birmingham, AL, USA
| | - J Torner
- Department of Epidemiology, College of Public Health, University of Iowa, IA, USA
| | - T Neogi
- Department of Medicine, Boston University School of Medicine, Boston University, Boston, MA, USA
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Alkhalid Y, Darji Z, Shenkar R, Clancy M, Dyamenahalli U, Awad IA. Multidisciplinary coordinated care of hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu disease). Vasc Med 2023; 28:153-165. [PMID: 36890671 DOI: 10.1177/1358863x231151731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Hereditary hemorrhagic telangiectasia (HHT), also known as Osler-Weber-Rendu disease, is a rare disorder with a case prevalence as high as one in 5000, causing arteriovenous malformations in multiple organ systems. HHT is familial with autosomal dominant inheritance, with genetic testing allowing confirmation of the diagnosis in asymptomatic kindreds. Common clinical manifestations are epistaxis and intestinal lesions causing anemia and requiring transfusions. Pulmonary vascular malformations predispose to ischemic stroke and brain abscess and may cause dyspnea and cardiac failure. Brain vascular malformations can cause hemorrhagic stroke and seizures. Rarely, liver arteriovenous malformations can cause hepatic failure. A form of HHT can cause juvenile polyposis syndrome and colon cancer. Specialists in multiple fields may be called to care for one or more aspects of HHT, but few are familiar with evidence-based guidelines for HHT management or see a sufficient number of patients to gain experience with the unique characteristics of the disease. Primary care physicians and specialists are often unaware of the important manifestations of HHT in multiple systems and the thresholds for their screening and appropriate management. To improve familiarity, experience, and coordinated multisystem care for patients with HHT, the Cure HHT Foundation, which advocates for patients and families with this disease, has accredited 29 centers in North America with designated specialists for the evaluation and care of patients with HHT. Team assembly and current screening and management protocols are described as a model for evidence-based, multidisciplinary care in this disease.
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Affiliation(s)
- Yasmine Alkhalid
- Department of Neurological Surgery, University of Chicago Medicine, Chicago, IL, USA
| | - Zeena Darji
- Department of Neurological Surgery, University of Chicago Medicine, Chicago, IL, USA
| | - Robert Shenkar
- Department of Neurological Surgery, University of Chicago Medicine, Chicago, IL, USA
| | | | - Umesh Dyamenahalli
- Department of Pediatrics, Section of Pediatric Cardiology, University of Chicago Medicine, Chicago, IL, USA
| | - Issam A Awad
- Department of Neurological Surgery, University of Chicago Medicine, Chicago, IL, USA.,Multidisciplinary faculty of the HHT Center of Excellence at University of Chicago Medicine, Chicago, IL, USA includes: Remzi Bag, Section of Pulmonary Medicine; Fuad Baroody, Section of Otolaryngology and Head and Neck Surgery; Elizabeth Blair, Section of Otolaryngology and Head and Neck Surgery; Diana Bolotin, Section of Dermatology; James R Brorson, Department of Neurology; Kenneth S Cohen, Section of Hematology and Oncology; Brian Funaki, Section of Interventional Radiology; Hilary Jericho, Section of Pediatric Gastroenterology; Tarek Kass-Hout: Department of Neurology; Sonia Kupfer, Section of Gastroenterology; James K Liao, Section of Cardiology; Anjana Pillai, Section of Gastroenterology; Jayant Pinto, Section of Otolaryngology and Head and Neck Surgery; Christopher Roxbury, Section of Otolaryngology and Head and Neck Surgery; Carol E Semrad, Section of Gastroenterology; Sarah Stein, Section of Dermatology; Mary E Strek: Section of Pulmonary Medicine; Darrel J Waggoner, Department of Human Genetics; Steven Zangan, Section of Interventional Radiology
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- Multidisciplinary faculty of the HHT Center of Excellence at University of Chicago Medicine, Chicago, IL, USA includes: Remzi Bag, Section of Pulmonary Medicine; Fuad Baroody, Section of Otolaryngology and Head and Neck Surgery; Elizabeth Blair, Section of Otolaryngology and Head and Neck Surgery; Diana Bolotin, Section of Dermatology; James R Brorson, Department of Neurology; Kenneth S Cohen, Section of Hematology and Oncology; Brian Funaki, Section of Interventional Radiology; Hilary Jericho, Section of Pediatric Gastroenterology; Tarek Kass-Hout: Department of Neurology; Sonia Kupfer, Section of Gastroenterology; James K Liao, Section of Cardiology; Anjana Pillai, Section of Gastroenterology; Jayant Pinto, Section of Otolaryngology and Head and Neck Surgery; Christopher Roxbury, Section of Otolaryngology and Head and Neck Surgery; Carol E Semrad, Section of Gastroenterology; Sarah Stein, Section of Dermatology; Mary E Strek: Section of Pulmonary Medicine; Darrel J Waggoner, Department of Human Genetics; Steven Zangan, Section of Interventional Radiology
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Faughnan ME, Mager JJ, Hetts SW, Palda VA, Lang-Robertson K, Buscarini E, Deslandres E, Kasthuri RS, Lausman A, Poetker D, Ratjen F, Chesnutt MS, Clancy M, Whitehead KJ, Al-Samkari H, Chakinala M, Conrad M, Cortes D, Crocione C, Darling J, de Gussem E, Derksen C, Dupuis-Girod S, Foy P, Geisthoff U, Gossage JR, Hammill A, Heimdal K, Henderson K, Iyer VN, Kjeldsen AD, Komiyama M, Korenblatt K, McDonald J, McMahon J, McWilliams J, Meek ME, Mei-Zahav M, Olitsky S, Palmer S, Pantalone R, Piccirillo JF, Plahn B, Porteous MEM, Post MC, Radovanovic I, Rochon PJ, Rodriguez-Lopez J, Sabba C, Serra M, Shovlin C, Sprecher D, White AJ, Winship I, Zarrabeitia R. Second International Guidelines for the Diagnosis and Management of Hereditary Hemorrhagic Telangiectasia. Ann Intern Med 2020; 173:989-1001. [PMID: 32894695 DOI: 10.7326/m20-1443] [Citation(s) in RCA: 191] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
DESCRIPTION Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant disease with an estimated prevalence of 1 in 5000 that is characterized by the presence of vascular malformations (VMs). These result in chronic bleeding, acute hemorrhage, and complications from shunting through VMs. The goal of the Second International HHT Guidelines process was to develop evidence-based consensus guidelines for the management and prevention of HHT-related symptoms and complications. METHODS The guidelines were developed using the AGREE II (Appraisal of Guidelines for Research and Evaluation II) framework and GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology. The guidelines expert panel included expert physicians (clinical and genetic) in HHT from 15 countries, guidelines methodologists, health care workers, health care administrators, patient advocacy representatives, and persons with HHT. During the preconference process, the expert panel generated clinically relevant questions in 6 priority topic areas. A systematic literature search was done in June 2019, and articles meeting a priori criteria were included to generate evidence tables, which were used as the basis for recommendation development. The expert panel subsequently convened during a guidelines conference to conduct a structured consensus process, during which recommendations reaching at least 80% consensus were discussed and approved. RECOMMENDATIONS The expert panel generated and approved 6 new recommendations for each of the following 6 priority topic areas: epistaxis, gastrointestinal bleeding, anemia and iron deficiency, liver VMs, pediatric care, and pregnancy and delivery (36 total). The recommendations highlight new evidence in existing topics from the first International HHT Guidelines and provide guidance in 3 new areas: anemia, pediatrics, and pregnancy and delivery. These recommendations should facilitate implementation of key components of HHT care into clinical practice.
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Affiliation(s)
- Marie E Faughnan
- St. Michael's Hospital, Li Ka Shing Knowledge Institute, and University of Toronto, Toronto, Ontario, Canada (M.E.F.)
| | | | - Steven W Hetts
- University of California, San Francisco, San Francisco, California (S.W.H., M.C.)
| | | | | | | | - Erik Deslandres
- Centre Hospitalier de l'Université de Montréal, Hôtel-Dieu, Montreal, Quebec, Canada (E.D.)
| | - Raj S Kasthuri
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (R.S.K., J.D.)
| | - Andrea Lausman
- St. Michael's Hospital and University of Toronto, Toronto, Ontario, Canada (A.L., R.P.)
| | - David Poetker
- Froedtert and Medical College of Wisconsin, Milwaukee, Wisconsin (D.P., P.F.)
| | - Felix Ratjen
- The Hospital for Sick Children and University of Toronto, Toronto, Ontario, Canada (F.R.)
| | - Mark S Chesnutt
- VA Portland Health Care System and Oregon Health & Science University, Portland, Oregon (M.S.C.)
| | | | - Kevin J Whitehead
- University of Utah Medical Center, Salt Lake City, Utah (K.J.W., J.M.)
| | - Hanny Al-Samkari
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts (H.A.)
| | - Murali Chakinala
- Washington University School of Medicine, St. Louis, Missouri (M.C., K.K., J.F.P., A.J.W.)
| | - Miles Conrad
- University of California, San Francisco, San Francisco, California (S.W.H., M.C.)
| | - Daniel Cortes
- St. Michael's Hospital and Unity Health Toronto, Toronto, Canada (D.C.)
| | | | - Jama Darling
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (R.S.K., J.D.)
| | | | | | | | - Patrick Foy
- Froedtert and Medical College of Wisconsin, Milwaukee, Wisconsin (D.P., P.F.)
| | - Urban Geisthoff
- University Hospital of Marburg and Phillips University Marburg, Marburg, Germany (U.G.)
| | | | - Adrienne Hammill
- Cincinnati Children's Hospital and University of Cincinnati, Cincinnati, Ohio (A.H.)
| | - Ketil Heimdal
- Oslo University Hospital, Rikshospitalet, Oslo, Norway (K.H.)
| | | | | | | | | | - Kevin Korenblatt
- Washington University School of Medicine, St. Louis, Missouri (M.C., K.K., J.F.P., A.J.W.)
| | - Jamie McDonald
- University of Utah Medical Center, Salt Lake City, Utah (K.J.W., J.M.)
| | | | - Justin McWilliams
- University of California, Los Angeles, Los Angeles, California (J.M.)
| | - Mary E Meek
- University of Arkansas for Medical Sciences, Little Rock, Arkansas (M.E.M.)
| | - Meir Mei-Zahav
- Schneider Children's Medical Center of Israel and Sackler School of Medicine of Tel Aviv University, Tel Aviv, Israel (M.M.)
| | | | | | - Rose Pantalone
- St. Michael's Hospital and University of Toronto, Toronto, Ontario, Canada (A.L., R.P.)
| | - Jay F Piccirillo
- Washington University School of Medicine, St. Louis, Missouri (M.C., K.K., J.F.P., A.J.W.)
| | | | | | - Marco C Post
- St. Antonius Hospital, Nieuwegein, and University Medical Center Utrecht, Utrecht, the Netherlands (M.C.P.)
| | - Ivan Radovanovic
- Toronto Western Hospital and University of Toronto, Toronto, Ontario, Canada (I.R.)
| | - Paul J Rochon
- University of Colorado Hospital, Aurora, Colorado (P.J.R.)
| | | | | | - Marcelo Serra
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina (M.S.)
| | | | | | - Andrew J White
- Washington University School of Medicine, St. Louis, Missouri (M.C., K.K., J.F.P., A.J.W.)
| | - Ingrid Winship
- Royal Melbourne Hospital and University of Melbourne, Melbourne, Victoria, Australia (I.W.)
| | - Roberto Zarrabeitia
- Hospital Sierrallana (Servicio Cántabro de Salud), Torrelavega, Spain (R.Z.)
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Macfarlane AJR, Kearns R, Clancy M, Aitken E. Does regional anaesthesia for arteriovenous fistula formation surgery improve long-term outcome? Anaesthesia 2020; 75:1684. [PMID: 32592494 DOI: 10.1111/anae.15127] [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] [Accepted: 05/14/2020] [Indexed: 10/24/2022]
Affiliation(s)
| | - R Kearns
- Glasgow Royal Infirmary, Glasgow, UK
| | - M Clancy
- Queen Elizabeth University Hospital, Glasgow, UK
| | - E Aitken
- Queen Elizabeth University Hospital, Glasgow, UK
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Buechler KF, Moi S, Noar B, McGrath D, Villela J, Clancy M, Shenhav A, Colleymore A, Valkirs G, Lee T. Simultaneous Detection of Seven Drugs of Abuse by the TriageTM Panel for Drugs of Abuse. Clin Chem 2019. [DOI: 10.1093/clinchem/38.9.1678] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
This novel, competitive immunoassay simultaneously detects seven drugs of abuse in urine. A urine sample is placed in contact with lyophilized reagents, the reaction mixture is allowed to come to equilibrium (10 min), and then the whole mixture is applied to a solid phase that contains various immobilized antibodies in discrete drug-class-specific zones. After a washing step, the operator visually examines each zone for the presence of a red bar. The method incorporates present threshold concentrations that are independent for each drug. In the absence of drug or in the presence of drug in quantities less than the threshold concentration, no colored bar is visible. Samples containing drug(s) at or above the threshold concentration cause a red bar to appear for the appropriate drug(s). Positive and negative procedural control zones are incorporated into each determination. The performance of the assay methodology matches that of instrumented immunoassay systems.
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Affiliation(s)
| | - S Moi
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | - B Noar
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | - D McGrath
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | - J Villela
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | - M Clancy
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | - A Shenhav
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | | | - G Valkirs
- Biosite Diagnostics, Inc., San Diego, CA 92121
| | - T Lee
- Biosite Diagnostics, Inc., San Diego, CA 92121
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Chaturvedi S, Kohli R, Schaefer N, Clancy M, Kasthuri RS. Characteristics and outcomes of venous thromboembolism in patients with hereditary hemorrhagic telangiectasia. Thromb Res 2018; 169:41-43. [DOI: 10.1016/j.thromres.2018.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/07/2018] [Accepted: 07/03/2018] [Indexed: 10/28/2022]
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Chaturvedi S, Clancy M, Schaefer N, Oluwole O, McCrae KR. Depression and post-traumatic stress disorder in individuals with hereditary hemorrhagic telangiectasia: A cross-sectional survey. Thromb Res 2017; 153:14-18. [PMID: 28314138 DOI: 10.1016/j.thromres.2017.03.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 10/05/2016] [Revised: 03/01/2017] [Accepted: 03/06/2017] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Hereditary hemorrhagic telangiectasia (HHT) is characterized by frequent severe bleeding, particularly epistaxis, and life-threatening complications including stroke, brain abscess and heart failure. The psychological impact of HHT is not known. We conducted this cross sectional study to determine the prevalence of depression and post-traumatic stress disorder (PTSD) related to HHT. METHODS A survey tool comprising demographic and clinical information and two validated self-administered questionnaires, the PTSD checklist for DSM-5 (PCL-5) and Beck Depression Inventory-II (BDI-II), was distributed to individuals with HHT. Associations with clinical and demographic variables with depression and PTSD were evaluated in a logistic regression model. RESULTS A total of 222 individuals responded to the survey. Of these, 185 completed either the BDI II or PCL-5 and were included in the analysis. Median age was 54years and 142 (76.8%) were female. An existing diagnosis of depression, anxiety disorder and PTSD was present in 81 (43.8%), 59 (31.9%) and 16(8.6%) respondents, respectively. BDI-II scores>13 indicating at least mild depressive symptoms were present in 142 (88.7%) patients and 52 (28.1%) patients had a positive screen for PTSD (PCL-5 score≥38). On multivariable analysis, depression [OR 2.17 (95% CI 1.045-4.489), p=0.038], anxiety disorder [OR 2.232 (95% CI 1.066-4.676), p=0.033], and being unemployed [OR 2.234 (95% CI 1.46-4.714), p=0.019) were associated with PTSD. CONCLUSION We report a high prevalence of depressive and PTSD symptoms in individuals with HHT. While selection bias may lead to overestimation of prevalence in this study, our results are concerning and clinicians should remain vigilant for signs of psychological distress and consider screening for these disorders.
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Affiliation(s)
- Shruti Chaturvedi
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | | | | | - Olalekan Oluwole
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Keith R McCrae
- Department of Cellular and Molecular Medicine, Cleveland Clinic, United States; Hematologic Oncology and Blood Disorders, Taussig Cancer Center, Cleveland Clinic, Cleveland, OH, United States.
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Clancy M, Gray H. PATIENTS ADMITTED FROM THE EMERGENCY DEPARTMENT INTO AN ACUTE MEDICINE BED FOR LESS THAN TWENTY FOUR HOURS–ARE THESE ADMISSIONS JUSTIFIED? Arch Emerg Med 2016. [DOI: 10.1136/emermed-2016-206402.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sheldon A, Thomson P, Clancy M. Patterns of CMV infection post renal transplant. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Davies D, Clancy M, Su Z, Denghani H, Belli A. Choosing a cerebral near-infrared spectroscopy system for use in traumatic brain injury: deriving the ideal source detector layout. Crit Care 2014. [PMCID: PMC4069440 DOI: 10.1186/cc13658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Englund M, Haugen I, Guermazi A, Roemer F, Niu J, Neogi T, Aliabadi P, Clancy M, Felson D. OP0034 The association between radiographic hand osteoarthritis and meniscal damage on MRI in the general population:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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McDermott M, Aitken E, Geddes C, Clancy M. Re. ‘Cost-effectiveness of vascular access for haemodialyis: arteriovenous fistulas versus arteriovenous grafts’. Eur J Vasc Endovasc Surg 2013; 46:149-50. [PMID: 23642522 DOI: 10.1016/j.ejvs.2013.03.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 03/16/2013] [Indexed: 11/18/2022]
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Akers AL, Ball KL, Clancy M, Comi AM, Faughnan ME, Gopal-Srivastava R, Jacobs TP, Kim H, Krischer J, Marchuk DA, McCulloch CE, Morrison L, Moses M, Moy CS, Pawlikowska L, Young WL. Brain Vascular Malformation Consortium: Overview, Progress and Future Directions. J Rare Disord 2013; 1:5. [PMID: 25221778 PMCID: PMC4160161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Brain vascular malformations are resource-intensive to manage effectively, are associated with serious neurological morbidity, lack specific medical therapies, and have no validated biomarkers for disease severity and progression. Investigators have tended to work in "research silos" with suboptimal cross-communication. We present here a paradigm for interdisciplinary collaboration to facilitate rare disease research. The Brain Vascular Malformation Consortium (BVMC) is a multidisciplinary, inter-institutional group of investigators, one of 17 consortia in the Office of Rare Disease Research Rare Disease Clinical Research Network (RDCRN). The diseases under study are: familial Cerebral Cavernous Malformations type 1, common Hispanic mutation (CCM1-CHM); Sturge-Weber Syndrome (SWS); and brain arteriovenous malformation in hereditary hemorrhagic telangiectasia (HHT). Each project is developing biomarkers for disease progression and severity, and has established scalable, relational databases for observational and longitudinal studies that are stored centrally by the RDCRN Data Management and Coordinating Center. Patient Support Organizations (PSOs) are a key RDCRN component in the recruitment and support of participants. The BVMC PSOs include Angioma Alliance, Sturge Weber Foundation, and HHT Foundation International. Our networks of clinical centers of excellence in SWS and HHT, as well as our PSOs, have enhanced BVMC patient recruitment. The BVMC provides unique and valuable resources to the clinical neurovascular community, and recently reported findings are reviewed. Future planned studies will apply successful approaches and insights across the three projects to leverage the combined resources of the BVMC and RDCRN in advancing new biomarkers and treatment strategies for patients with vascular malformations.
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Affiliation(s)
| | | | | | - Anne M Comi
- Hugo Moser Kennedy Krieger Research Institute; Departments of Neurology and Pediatrics at the Johns Hopkins School of Medicine, Baltimore, MD
| | - Marie E Faughnan
- Toronto HHT Centre, Division of Respirology, Department of Medicine, St Michael's Hospital, University of Toronto and Keenan Research Centre and the Li Ka Shing Knowledge Institute, Toronto, Ontario, Canada
| | | | | | - Helen Kim
- Center for Cerebrovascular Research, Departments of Anesthesia and Perioperative Care, Neurological Surgery, Neurology, and Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA
| | | | | | - Charles E McCulloch
- Center for Cerebrovascular Research, Departments of Anesthesia and Perioperative Care, Neurological Surgery, Neurology, and Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA
| | - Leslie Morrison
- Department of Neurology, University of New Mexico, Albuquerque, NM
| | | | | | - Ludmilla Pawlikowska
- Center for Cerebrovascular Research, Departments of Anesthesia and Perioperative Care, Neurological Surgery, Neurology, and Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA
| | - William L Young
- Center for Cerebrovascular Research, Departments of Anesthesia and Perioperative Care, Neurological Surgery, Neurology, and Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA
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Walter* S, Dong J, Alexander S, Hunter T, Yin K, Maclean D, Tomlinson J, Karim F, Johnson R, Stevens K, Patel R, Clancy M, Graham D, Delles C, Jardine A, Behets G, Viaene L, Meijers B, D'haese P, Evenepoel P, Seiler S, Herath E, Flugge F, Weihrauch A, Fliser D, Heine GH, Brandenburg V, Kruger T, Wagstaff R, Floege J, Specht P, Ketteler M, Angelini ML, Angelini ML, Cianciolo G, La Manna G, Cappuccilli ML, Della Bella E, Rum I, Conte D, Cuna V, Dormi A, Todeschini P, Donati G, Costa R, Bagnara GP, Stefoni S. Bone and mineral diseases - 1. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Stevens K, Clancy M, Geddes C. Reply. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfr800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Whalen H, Clancy M, Jardine A. Future challenges in renal transplantation. MINERVA CHIR 2012; 67:15-30. [PMID: 22361673] [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: 05/31/2023]
Abstract
There is a worldwide increase in the incidence of end-stage renal disease. Renal transplantation has been shown to be cost effective, prolong survival and provide a better quality of life in comparison to dialysis. Consequently, there has been a steady increase in demand for organs leading to a shortage of available kidneys, and an increase in transplant waiting lists. Renal transplantation is therefore an expanding field with a number of unique future challenges to address. This article outlines strategies that may be employed to expand organ supply in order to meet increased demand. The ethical issues surrounding this are also summarized. Furthermore, we highlight techniques with the potential to minimize peri-transplant injury to the kidney on its journey from donor to recipient. Current and potential future management strategies to optimize graft and patient survival are also discussed.
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Tse GH, Clancy M. Transplant ureteric stenosis complicating laparoscopic recurrent inguinal hernia repair. Hernia 2011; 17:271-3. [DOI: 10.1007/s10029-011-0878-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 08/04/2011] [Indexed: 10/17/2022]
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Stevens KK, Woo YM, Clancy M, McClure JD, Fox JG, Geddes CC. Deceased donor transplantation in the elderly--are we creating false hope? Nephrol Dial Transplant 2011; 26:2382-6. [DOI: 10.1093/ndt/gfq826] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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22
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Stefanik JJ, Zhu Y, Zumwalt AC, Gross KD, Clancy M, Lynch JA, Frey Law LA, Lewis CE, Roemer FW, Powers CM, Guermazi A, Felson DT. Association between patella alta and the prevalence and worsening of structural features of patellofemoral joint osteoarthritis: the multicenter osteoarthritis study. Arthritis Care Res (Hoboken) 2010; 62:1258-65. [PMID: 20506169 DOI: 10.1002/acr.20214] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To examine the relationship between patella alta and the prevalence and worsening at followup of structural features of patellofemoral joint (PFJ) osteoarthritis (OA) on magnetic resonance imaging (MRI). METHODS The Multicenter Osteoarthritis Study is a cohort study of persons ages 50-79 years with or at risk for knee OA. Patella alta was measured using the Insall-Salvati ratio (ISR) on the baseline lateral radiograph, and cartilage damage, bone marrow lesions (BMLs), and subchondral bone attrition (SBA) were graded on MRI at baseline and at 30 months of followup in the PFJ. We examined the association of the ISR with the prevalence and worsening of cartilage damage, BMLs, and SBA in the PFJ using logistic regression. RESULTS A total of 907 knees were studied (mean age 62 years, body mass index 30 kg/m(2), ISR 1.10), 63% from female subjects. Compared with knees in the lowest ISR quartile at baseline, those in the highest quartile had 2.4 (95% confidence interval [95% CI] 1.7-3.3), 2.9 (95% CI 2.0-4.3), and 3.5 (95% CI 2.3-5.5) times the odds of having lateral PFJ cartilage damage, BMLs, and SBA, respectively, and 1.5 (95% CI 1.1-2.0), 1.3 (95% CI 0.9-1.8), and 2.2 (95% CI 1.4-3.4) times the odds of having medial PFJ cartilage damage, BMLs, and SBA, respectively. Similarly, those with high ISRs were also at risk for worsening of cartilage damage and BMLs over time than those with low ISRs. CONCLUSION A high ISR, indicative of patella alta, is associated with structural features of OA in the PFJ. Additionally, the same knees have an increased risk of worsening of these same features over time.
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Affiliation(s)
- J J Stefanik
- Boston University School of Medicine, Boston, Massachusetts 02118, USA.
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Baker K, Grainger A, Niu J, Clancy M, Guermazi A, Crema M, Hughes L, Buckwalter J, Wooley A, Nevitt M, Felson DT. Relation of synovitis to knee pain using contrast-enhanced MRIs. Ann Rheum Dis 2010; 69:1779-83. [PMID: 20472593 PMCID: PMC3885343 DOI: 10.1136/ard.2009.121426] [Citation(s) in RCA: 234] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND It has been suggested that synovitis causes joint pain. On non-contrast-enhanced MRIs synovial thickening cannot be assessed and on these images synovitis has been inconsistently associated with pain. OBJECTIVE To assess synovial thickening in relation to knee pain severity among subjects in the Multicenter Osteoarthritis Study (MOST) using contrast-enhanced (CE) MRI. METHODS MOST is a cohort study of people who have, or are at high risk of, knee osteoarthritis (OA). An unselected subset of 535 participants who volunteered underwent CE 1.5 T MRI of one knee. Synovitis was scored in six compartments and a summary score was created. Knee pain severity was assessed using the maximum item score on the Western Ontario and McMaster Osteoarthritis Index (WOMAC) pain scale. The association between synovitis and pain severity was examined using a logistic regression model adjusting for age, sex, body mass index (BMI), MRI bone marrow lesions and effusions in the whole sample and in a subgroup without radiographic OA. RESULTS 454 of the 535 subjects undergoing CE MRI had complete data on synovitis and WOMAC pain. Mean age was 59 years, mean BMI 30 and 48% were women. In knees with moderate pain, 80% had synovitis. For knee pain, synovitis conferred a 9.2-fold increased odds compared with those without synovitis. In knees without radiographic OA (n=329), there was also an association of synovitis with an increased prevalence of pain. CONCLUSION Synovitis has a strong relation with knee pain severity, an association detected more clearly with CE MRI than suggested by previous studies using non-CE MRI measures of synovitis.
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Affiliation(s)
- K. Baker
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
| | - A. Grainger
- Department of Radiology, Chapel Allerton Hospital, Leeds, UK
| | - J. Niu
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
| | - M. Clancy
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
| | - A. Guermazi
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
| | - M. Crema
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
| | - L. Hughes
- University Alabama, Birmingham, Alabama, USA
| | | | - A. Wooley
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
| | - M. Nevitt
- University of California, San Francisco, California, USA
| | - D. T. Felson
- Clinical Epidemiology Unit, Boston University Medical Center, Boston, Massachusetts, USA
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Geddes CC, Gunson R, Mazonakis E, Wan R, Thomson L, Clancy M, Carman WF. BK viremia surveillance after kidney transplant: single-center experience during a change from cyclosporine-to lower-dose tacrolimus-based primary immunosuppression regimen. Transpl Infect Dis 2010; 13:109-16. [PMID: 21457419 DOI: 10.1111/j.1399-3062.2010.00566.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The aim was to report our experience of BK viremia surveillance after kidney transplant during a period of change from cyclosporine (CyA)-to lower-dose tacrolimus (Tac)-based primary immunosuppression regimens. METHODS In a prospective single-center observational cohort study, 68 consecutive patients received renal transplant during the period when we used a CyA-based primary immunosuppression regimen and 66 after we changed to a lower-dose Tac-based regimen. Testing for BK viremia by quantitative polymerase chain reaction assay was performed at least monthly for a minimum of 1 year. RESULTS Thirty-nine (29.1%) patients developed BK viremia and 2 (1.5%) developed BK nephropathy. The actuarial time to BK viremia was shorter in patients receiving CyA/mycophenolate mofetil (MMF)/prednisolone (Pred) compared with Tac/MMF/Pred (P=0.04) and primary immunosuppression with CyA/MMF/Pred was the only independent predictor of BK viremia (hazard ratio 1.95; P=0.047). Comparing patients who experienced BK viremia and those who did not, there was no difference in incidence of acute rejection (20.5% vs. 25.3%; P=0.56) or estimated glomerular filtration rate at 12 months (48.8 vs. 49.9 mL/min/1.73 m(2)), but the incidence of ureteric stenosis was higher (10.3% vs. 1.1%; P=0.01). CONCLUSIONS Our data demonstrate a lower incidence of BK viremia in patients on lower-dose Tac compared with CyA-based primary immunosuppression in contrast to previous studies, and provide further support for the association between BK virus and ureteric complications.
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Affiliation(s)
- C C Geddes
- Renal Unit, Western Infirmary, Glasgow, UK.
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Clancy M, Codd M, McNamara D. P02-298 - Clinical course of patients with anorexia nervosa in an in-patient adolescent eating disorder unit. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)70997-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Lyne J, O'Donoghue B, Clancy M, Kinsella A, O'Gara C. Concurrent cocaine and alcohol use in individuals presenting to an addiction treatment program. Ir J Med Sci 2009; 179:233-7. [PMID: 19597917 DOI: 10.1007/s11845-009-0385-6] [Citation(s) in RCA: 7] [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] [Received: 07/22/2008] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND National population surveys and information from the National Drug Treatment Reporting System indicate cocaine use is increasing. There is a paucity of studies focusing on comorbid cocaine and alcohol use in Ireland. AIMS The aims of the study are to examine comorbid cocaine and alcohol use patterns in those under 45 years, presenting to a national addiction treatment unit for alcohol and drug dependence. METHODS A retrospective review of the substance misuse behavior of 465 individuals participating in an addiction rehabilitation programme for alcohol dependence. RESULTS Cocaine use among this population rose significantly between 1995 (8%) and 2006 (37.9%). There was a significant association between lifetime reported cocaine use and both psychotic disorders and deliberate self harm. Overall, the use was highest among younger age group and this declined steadily with age. CONCLUSIONS Cocaine use among the alcohol-dependent population is an increasing problem in the Republic of Ireland, and poses a problem of higher toxicity associated with concurrent cocaine and alcohol use.
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Affiliation(s)
- J Lyne
- Addiction Department, St John of God Hospital, Stillorgan, Co Dublin, Ireland.
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Niu J, Zhang YQ, Torner J, Nevitt M, Lewis CE, Aliabadi P, Sack B, Clancy M, Sharma L, Felson DT. Is obesity a risk factor for progressive radiographic knee osteoarthritis? ACTA ACUST UNITED AC 2009; 61:329-35. [PMID: 19248122 DOI: 10.1002/art.24337] [Citation(s) in RCA: 182] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To examine whether obesity increases the risk of progression of knee osteoarthritis (OA). METHODS We used data from the Multicenter Osteoarthritis Study, a longitudinal study of persons with or at high risk of knee OA. OA was characterized at baseline and 30 months using posteroanterior fixed-flexion radiographs and Kellgren/Lawrence (K/L) grading, with alignment assessed on full-extremity films. In knees with OA at baseline (K/L grade 2 or 3), progression was defined as tibiofemoral joint space narrowing on the 30-month radiograph. In knees without OA at baseline (K/L grade 0 or 1), incident OA was defined as the development of radiographic OA at 30 months. Body mass index (BMI) at baseline was classified as normal (<25 kg/m(2)), overweight (25-<30 kg/m(2)), obese (30-<35 kg/m(2)), and very obese (>or=35 kg/m(2)). The risk of progression was tested in all knees and in subgroups categorized according to alignment. Analyses were adjusted for age, sex, knee injury, and bone density. RESULTS Among the 2,623 subjects (5,159 knees), 60% were women, and the mean +/- SD age was 62.4 +/- 8.0 years. More than 80% of subjects were overweight or obese. At baseline, 36.4% of knees had tibiofemoral OA, and of those, only one-third were neutrally aligned. Compared with subjects with a normal BMI, those who were obese or very obese were at an increased risk of incident OA (relative risk 2.4 and 3.2, respectively [P for trend < 0.001]); this risk extended to knees from all alignment groups. Among knees with OA at baseline, there was no overall association between a high BMI and the risk of OA progression; however, an increased risk of progression was observed among knees with neutral but not varus alignment. The effect of obesity was intermediate in those with valgus alignment. CONCLUSION Although obesity was a risk factor for incident knee OA, we observed no overall relationship between obesity and the progression of knee OA. Obesity was not associated with OA progression in knees with varus alignment; however, it did increase the risk of progression in knees with neutral or valgus alignment. Therefore, weight loss may not be effective in preventing progression of structural damage in OA knees with varus alignment.
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Affiliation(s)
- J Niu
- Boston University School of Medicine, Boston, Massachusetts 02118, USA
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Clancy M, Kilroy D, Driscoll P. Content prioritisation of the College of Emergency Medicine specialty curriculum: an exploratory study using a modified Delphi approach. Emerg Med J 2009; 26:180-2. [DOI: 10.1136/emj.2008.064030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
AIM To examine and explore factors that may influence the recording of vital signs in adult patients within the initial 15 min and again within 60 min of arrival in the "resuscitation" and "major" areas of the emergency department (ED). METHODS A retrospective analysis of recording of vital signs was performed on 400 consecutive sets of notes from adult patients presenting to the "major" or "resuscitation" areas of a district general hospital ED. The effect of staffing levels, triage category and attendances on the recording of vital signs was examined using logistic regression. The main outcome measures were the proportion of patients with all vital signs recorded within 15 min of arrival, the proportion of patients with all vital signs repeated within 60 min of arrival and the outcomes of logistic regression analysis. RESULTS Only 223/387 patients (58%) had all vital signs recorded within 15 min of arrival and only 29/387 (7%) had all vital signs repeated at 60 min. There was a significant relationship between the failure to record vital signs and lower triage categories. There was no evidence that staffing levels or number of attendances predicted the recording of vital signs within 15 min of arrival. CONCLUSION Recording of vital signs was poor and unrelated to staffing levels or numbers of patients attending the ED. Failure to record patients' vital signs undermines strategies to detect and manage ill patients.
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Affiliation(s)
- B Armstrong
- Emergency Department, Basingstoke & North Hampshire Foundation Hospital, Basingstoke RG24 9NA, UK.
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Clancy M, Driscoll P. Critical appraisal series introduction. Arch Emerg Med 2008; 25:189. [DOI: 10.1136/emj.2007.057299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Majuran M, Clancy M. Determination of the size of the different sepsis categories presenting to a UK teaching hospital emergency department. Emerg Med J 2008; 25:11-4. [PMID: 18156530 DOI: 10.1136/emj.2006.042358] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [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]
Abstract
AIM To establish the size of the population of patients presenting to a UK emergency department (ED) with systemic inflammatory response syndrome (SIRS), sepsis, severe sepsis and septic shock and to determine their mortality and length of stay. SETTING Southampton General Hospital Emergency Department, a teaching hospital treating 90,000 patients per annum. METHOD A retrospective audit of all patients attending the ED for a 1-month period was undertaken in order to classify them into the different sepsis groups. Length of stay and mortality data were abstracted from the Patient Administration System, a computerised database. RESULTS 137 (SIRS), 123 (sepsis) and 50 (severe sepsis or septic shock) patients were classified from 5832 new patients attending. The median length of stay was 5, 3 and 7.5 days, respectively, and the mortality was 6.6%, 4.1% and 26%, respectively. The incidence of severe sepsis or septic shock was 30 per 1000 patients admitted. CONCLUSION The high incidence of severe sepsis and septic shock with its attendant high mortality and length of stay is highlighted. If the figures are annualized, this would equate to 650 cases of severe sepsis or septic shock, of which 169 would die. The ED is well placed to improve this outcome by earlier detection and the use of goal directed therapy.
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Affiliation(s)
- M Majuran
- University of Southampton, Southampton, UK
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Baker M, Clancy M. Can mortality rates for patients who die within the emergency department, within 30 days of discharge from the emergency department, or within 30 days of admission from the emergency department be easily measured? Emerg Med J 2007; 23:601-3. [PMID: 16858089 PMCID: PMC2564158 DOI: 10.1136/emj.2005.028134] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [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: 11/03/2022]
Abstract
OBJECTIVES Death rates are an outcome that can be used to describe a service. We measured three death rates that can be used to describe an emergency department (ED): death rates for those seen in the ED and discharged, those that die within the ED, and those that die after admission. We also wanted to establish how easy it was to obtain these rates and how frequently autopsy was performed. SETTING ED within a large teaching hospital. RESULTS Between 1 December 2003 and 1 December 2004, 76,060 patients attended the ED of which 205 died within the department. A total of 16,489 were admitted of which 876 died within 30 days. A total of 59,366 were discharged home of which 111 subsequently died over the next 30 days. The rates were 0.19% (111/59,366) for those discharged, 4.6% (766/16,489) for those admitted, and 0.27% (205/76,060) for those patients attending the ED who died within it. The autopsy rate was low (20%) and was more likely if the patient died in the department, died within the first few days of admission, or was young. The data were easy to collect. CONCLUSIONS These three death rates were easy to calculate and could be used to describe the outcome of an ED service. Further research to establish the range of rates for different departments is now required to determine their potential use.
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Affiliation(s)
- M Baker
- Emergency Department, Southampton General Hospital, Tremona Road, Southampton, UK.
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Amin S, Niu J, Guermazi A, Grigoryan M, Hunter DJ, Clancy M, LaValley MP, Genant HK, Felson DT. Cigarette smoking and the risk for cartilage loss and knee pain in men with knee osteoarthritis. Ann Rheum Dis 2006; 66:18-22. [PMID: 17158140 PMCID: PMC1798417 DOI: 10.1136/ard.2006.056697] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To examine the effects of smoking on cartilage loss and pain at the knee in individuals with knee osteoarthritis. METHODS 159 men with symptomatic knee osteoarthritis who participated in a 30-month, prospective, natural history study of knee osteoarthritis were examined. The more symptomatic knee was imaged using magnetic resonance imaging (MRI) at baseline, and again at 15 and 30 months of follow-up. Cartilage was scored using the Whole-Organ MRI Score semiquantitative method at the medial and lateral tibiofemoral joints and at the patellofemoral joint. At baseline and follow-up visits, the severity of knee pain was assessed using a Visual Analogue Scale pain score (0-100 mm). RESULTS Among the 159 men, 19 (12%) were current smokers at baseline. Current smokers were younger (mean (standard deviation (SD)) age 62 (9) v 69 (9) years) and leaner (mean (SD) body mass index (BMI): 28.9 (3.2) v 31.3 (4.8) kg/m(2)) than men who were not current smokers. When adjusted for age, BMI and baseline cartilage scores, men who were current smokers were found to have an increased risk for cartilage loss at the medial tibiofemoral joint (odds ratio (OR) 2.3, 95% confidence interval (CI) 1.0 to 5.4) and the patellofemoral joint (OR 2.5, 95% CI 1.1 to 5.7). Current smokers also had higher adjusted pain scores at baseline (60.5 v 45.0, p<0.05) and at follow-up (59.4 v 44.3, p<0.05) than men who were not current smokers. CONCLUSIONS Men with knee osteoarthritis who smoke sustain greater cartilage loss and have more severe knee pain than men who do not smoke.
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Affiliation(s)
- S Amin
- Division of Rheumatology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.
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Hunter DJ, Zhang YQ, Niu JB, Tu X, Amin S, Clancy M, Guermazi A, Grigorian M, Gale D, Felson DT. The association of meniscal pathologic changes with cartilage loss in symptomatic knee osteoarthritis. ACTA ACUST UNITED AC 2006; 54:795-801. [PMID: 16508930 DOI: 10.1002/art.21724] [Citation(s) in RCA: 362] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore the role of meniscal tears and meniscal malposition as risk factors for subsequent cartilage loss in subjects with symptomatic osteoarthritis (OA). METHODS Study subjects were patients with symptomatic knee OA from the Boston Osteoarthritis of the Knee Study. Baseline assessments included knee magnetic resonance imaging (MRI) with followup MRI at 15 and 30 months. Cartilage and meniscal damage were scored on MRI in the medial and lateral tibiofemoral joints using the semiquantitative whole-organ magnetic resonance imaging score. Tibiofemoral cartilage was scored on MR images of all 5 plates of each tibiofemoral joint, and the meniscal position was measured using eFilm Workstation software. A proportional odds logistic regression model with generalized estimating equations was used to assess the effect of each predictor (meniscal position factor and meniscal damage as dichotomous predictors in each model) on cartilage loss in each of the 5 plates within a compartment. Models were adjusted for age, body mass index (BMI), tibial width, and sex. RESULTS We assessed 257 subjects whose mean +/- SD age was 66.6 +/- 9.2 years and BMI was 31.5 +/- 5.7 kg/m2; 42% of subjects were female, and 77% of knees had a Kellgren/Lawrence radiographic severity grade > or = 2. In the medial tibiofemoral joint, each measure of meniscal malposition was associated with an increased risk of cartilage loss. There was also a strong association between meniscal damage and cartilage loss. Since meniscal coverage and meniscal height diminished with subluxation, less coverage and reduced height also increased the risk of cartilage loss. CONCLUSION This study highlights the importance of an intact and functioning meniscus in patients with symptomatic knee OA, since the findings demonstrate that loss of this function has important consequences for cartilage loss.
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Affiliation(s)
- D J Hunter
- Boston Medical Center, Boston, Massachusetts, USA.
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Crouch R, Whitewick R, Clancy M, Wright P, Thomas P. Whiplash associated disorder: incidence and natural history over the first month for patients presenting to a UK emergency department. Emerg Med J 2006; 23:114-8. [PMID: 16439739 PMCID: PMC2564031 DOI: 10.1136/emj.2004.022145] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [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]
Abstract
OBJECTIVES To describe the epidemiology, process of care, and outcomes at 4-6 weeks after injury among patients with whiplash associated disorder attending a UK emergency department. METHODS All patients presenting during the study period with neck pain following a road traffic accident who met the inclusion criteria were assessed. Patients were followed up with a telephone interview at 4-6 weeks after attendance using the Neck Disability Index (NDI). The patient's general practitioner (GP) was contacted post attendance to ascertain subsequent healthcare use. RESULTS A total of 200 patients were recruited to the study, of which 30 were lost to follow up. Four variables, midline tenderness (p = 0.008; 95% CI 0.9 to 6.1), x ray request (p = 0.004; 0.9 to 6.1), wearing a seat belt (p = 0.038; 0.2 to 6.2), and having seen their GP post injury (p = 0.001; CI -10.5 to 6.6), were found to be associated with a higher NDI score at follow up. Significant correlation was identified with a high pain score and an increasing age of patient and high NDI scores. No correlation was found between the impact speed, speed of vehicle struck, or time since incident with the NDI. Two thirds of patients had some disability at 4-6 weeks after injury; 91 patients (54.5%) saw their GP in the intervening period between attending the department and telephone follow up, and 87/170 patients had no idea about their prognosis. CONCLUSIONS This study identifies that there is significant disability associated with whiplash associated disorder. Clear prognostic information would be a useful development.
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Affiliation(s)
- R Crouch
- Emergency Department, Southampton General Hospital, Southampton, Hampshire, SO16 6YD, UK.
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Abstract
BACKGROUND Long-term storage of embryonic kidneys is crucial for the organization of transplantation and organ banking. In this study, we investigated the effects of controlled-rate freezing and ice-free vitrification on metanephroi (MN) viability. METHODS Metanephroi isolated from 15-day (E15) timed pregnant Lewis rats were either: (i) frozen, using a DMSO/FCS/RPMI solution and a controlled freezing rate of -0.3 degrees C/min, from -10 degrees to -40 degrees C; or (ii) cryopreserved in an ice-free state by rapid cooling to -100 degrees C in cryoprotectant (VS55), followed by vitrification to -120 degrees C. After cryopreservation, the metanephroi were stored at -135 degrees C for 48 hours. After storage the MN were rewarmed, resuspended in culture media, and their viability was assessed using the AlamarBlue assay and histology (light microscopy, TEM, and cryosubstitution). RESULTS There was statistically no difference in embryonic kidney metabolic activity of either of the cryopreserved MN groups relative to the control untreated group. However, cryosubstitution demonstrated the presence of significant ice formation during controlled-rate freezing, yet in contrast the amount of ice was significantly reduced by vitrification. This was confirmed by TEM, where vacuolation of the cytoplasm of controlled-rate frozen metanephroi was observed, whereas vitrified metanephroi had little cytoplasmic disruption. However, vitrified metanephroi showed mitochondrial and nuclear injury at the cellular level. CONCLUSIONS There is a need for long-term storage of organs to make MN transplantation a reality. This study demonstrates that standard freezing methods are unsuitable for this purpose. Vitrification yielded more promising results, but further development is required.
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Abstract
OBJECTIVES To describe the case mix, activity, and outcome for admissions to intensive care units (ICUs) from emergency departments (EDs). DESIGN An observational study using data from a high quality clinical database, the Case Mix Programme Database, of intensive care admissions, coordinated at the Intensive Care National Audit & Research Centre (ICNARC). SETTING 91 adult ICUs in England, Wales, and Northern Ireland, 1996-99. SUBJECTS 46,587 intensive care admissions. MAIN OUTCOME MEASURES Ultimate hospital mortality. RESULTS Admissions from EDs constituted 26% of total admissions to ICU, 77% of which were direct admissions to ICU from EDs. Direct admissions from EDs, indirect admissions from EDs, and non-ED admissions presented to ICU with different conditions and severity of illness. Indirect admissions from EDs presented in the ICU with the more severe case mix (older age, more acute severity of illness, more likely to have a chronic illness) compared with direct admissions to ICU from EDs. Compared with ICU admissions not originating in EDs, unit and hospital mortality were higher for admissions from EDs, with indirect admissions experiencing the highest hospital (46.4%) mortality. For ICU survivors, indirect admissions stayed longest in the ICU. CONCLUSIONS A large proportion of admissions to ICU (26%) originate in EDs, and differ from those not originating in EDs in terms of both case mix and outcome. Additionally, those admitted directly to ICU from EDs differ from those admitted indirectly via a ward. The observed differences in outcome between different admission routes require further investigation and explanation.
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Affiliation(s)
- H K Simpson
- North Hampshire Hospital, Basingstoke, Hampshire, UK.
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Wright D, Crouch R, Clancy M. Role of networks in supporting emergency medicine research: findings from the Wessex emergency care research network (WECReN). Emerg Med J 2005; 22:80-3. [PMID: 15662052 PMCID: PMC1726662 DOI: 10.1136/emj.2003.008268] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- D Wright
- School of Nursing and Midwifery, University of Southampton, Southampton, UK
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Evans E, Turley N, Robinson N, Clancy M. Randomised controlled trial of patient controlled analgesia compared with nurse delivered analgesia in an emergency department. Emerg Med J 2005; 22:25-9. [PMID: 15611537 PMCID: PMC1726543 DOI: 10.1136/emj.2002.004614] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [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]
Abstract
OBJECTIVE To compare effectiveness, safety, and patient satisfaction of patient controlled analgesia (PCA) with titrated, intravenous opioid injections for the management of acute traumatic pain in the emergency department (ED). METHODS The study took place in the ED of a teaching hospital. Patients suffering traumatic injury requiring opioid analgesia, and meeting other inclusion criteria, were consented and randomised to either the study group or control group. The study group were given morphine through the PCA system, whereas the control group were given morphine via the conventional route of nurse titration. Pain levels were measured using a visual analogue scale. Both groups had their vital signs (blood pressure, pulse, oxygen saturations, Glasgow coma score, respiratory rate) and pain scores monitored at 0, 15, 30, 45, 60, 90, and 120 minutes, and any adverse events were noted. Patients were followed up with a questionnaire asking about their experience of pain relief in the department. RESULTS 86 patients were recruited to the study, 43 in each group. There was no significant difference between the groups in terms of pain relief (p = 0.578) and patient satisfaction (p = 0.263). No severe adverse events were observed, although 20.7% (n = 9) of the PCA group experienced mild sedation compared with 7% (n = 3) of the control group. CONCLUSIONS PCA is at least as effective as titrated intravenous injections for relief of traumatic pain. It has considerable potential for use in the ED.
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Affiliation(s)
- E Evans
- Emergency Department, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
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Abstract
A novel approach to circumventing the shortage in transplantable donor organs is the use of embryonic primordia that develop inside the host. Previously published work has shown that transplantation of rat fetal kidney primordia (metanephroi) onto the omentum of adult rat hosts results in growth and development of the metanephroi into functioning kidney units capable of providing a measurable renal function. However, for anatomical and physiological reasons the omentum may not provide the ideal site for transplantation and may limit the maximum renal function that the transplants can achieve. We postulate that it may be possible to increase the renal function of the transplants by transplantation to sites with increased blood flow. To test this we transplanted rat embryonic day 15 metanephroi into the retroperitoneal fat adjacent to major blood vessels in the peritoneum of unilaterally nephrectomized rats; 21 days later the transplants were examined and suitable transplants connected to the host urinary system. Approximately 130 days later the glomerular filtration rate of the connected transplants was analyzed. Our results show that transplantation of metanephroi to the regions highlighted in this study results in an increased presence of urinary cysts, suggesting increased early renal function in the transplants compared to metanephroi transplanted onto the omentum, but most importantly we show that we can increase the renal function of the transplants to a level comparable with other renal therapies such as dialysis. This work suggests life-sustaining renal function could be achieved through transplantation of renal primordia.
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Bottomley MJ, Marshall DP, Clancy M, Symonds K, Brenchley PE, Bravery CA. THE ROLE OF ENDOTHELIAL CELLS IN TRANSPLANTED METANEPHROI SURVIVAL AND DEVELOPMENT. Transplantation 2004. [DOI: 10.1097/00007890-200407271-02024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
A convenience sample of 50 patients admitted for treatment or ruling out of acute myocardial infarction were asked about their knowledge of thrombolysis. Some 44 of 50 knew nothing of thrombolysis and interestingly 30 of these 44 had been previously diagnosed as having ischaemic heart disease. Greater knowledge of the benefit and timeliness of thrombolysis may provide an important incentive for earlier presentation of this group.
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Affiliation(s)
- J A Gilbert
- Emergency Department, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
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Abstract
We encountered three cases of young sportsmen developing fat embolism syndrome (FES) after sustaining isolated tibial shaft fractures whilst playing football. All fractures were treated with intra-medullary nails and all three patients were kept nil-by-mouth pre-operatively without intravenous fluids. Correction of shock is often quoted as an important factor in the prevention of FES. However, animal studies have shown that dehydration, as opposed to hypovolaemia, may also be of great importance. We therefore examined the specific gravity of the urine of 20 patients with musculoskeletal injuries sustained during sport. The mean urinary specific gravity was significantly higher than that of a control group of 10 members of staff. We emphasise the importance of adequate pre-operative rehydration, especially if injuries were sustained during heavy exercise, as this may reduce the risk of developing FES.
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Affiliation(s)
- I D McDermott
- Hillingdon Hospital, 30 Park Way, Ruislip, HA4 8NU, Middlesex, UK.
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Hartington K, Hartley J, Clancy M. Measuring plasma paracetamol concentrations in all patients with drug overdoses; development of a clinical decision rule and clinicians willingness to use it. Emerg Med J 2002; 19:408-11. [PMID: 12204986 PMCID: PMC1725951 DOI: 10.1136/emj.19.5.408] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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]
Abstract
OBJECTIVES The study proposed a clinical decision rule: In patients who have taken a deliberate overdose, but deny taking paracetamol or paracetamol containing compounds, who have a GCS of 15, understand English well, and have not taken excessive alcohol, there is no need to take blood for paracetamol estimation. METHODS 307 consecutive emergency department patients were followed up, and the history of their overdose was correlated to blood paracetamol concentrations. In addition, clinicians were asked what level of confidence they required from such a clinical decision rule before they would use it. RESULTS 152 admitted paracetamol and 155 denied it. Of the 155 that denied it, 13 had concentrations detected in the blood, but needed no treatment with antidote. Eighty three per cent of clinicians require a false negative rate of less than 1%. CONCLUSIONS Using this decision rule, only 46 of 307 patients would not have required paracetamol concentrations to be measured. To show a negative rate of less than 1% a sample size of 20,000 patients would be needed. BOTTOM LINE All patients who allege taking an overdose need paracetamol concentrations checking.
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Affiliation(s)
- K Hartington
- ITU Department, Queen Alexandra Hospital, Portsmouth, UK
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Abstract
Airway management in the emergency department and the role of anaesthetists and emergency physicians is reviewed. The training for emergency physicians in the advanced airway skills of rapid sequence induction and tracheal intubation is discussed.
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Affiliation(s)
- M Clancy
- Accident and Emergency Department, Southampton General Hospital, UK
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