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Moore E, O'Brien JW, Merali N, Farkas N, Madhavan A, Abbassi-Ghadi N, Preston S, Singh P. Gastric outlet obstruction secondary to a wandering spleen: systematic review and surgical management of a case. Ann R Coll Surg Engl 2023. [PMID: 36688842 DOI: 10.1308/rcsann.2022.0149] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
INTRODUCTION A wandering spleen occurs when laxity or absence of the suspensory ligaments allows migration throughout the abdomen. Gastric outlet obstruction resulting from this abnormality is rare. We present a systematic literature search and a case that was managed successfully with surgical intervention at our centre. METHODS A systematic search of the PubMed, Embase™, Medline® and Google Scholar™ databases was carried out employing the combined search terms "gastric outlet obstruction" AND "wandering spleen". Six results were included for final analysis. RESULTS All six search results described a single case each. Patients underwent surgical management (open or laparoscopic) after initial investigation utilising a range of modalities. There were no mortalities reported at 90 days. The single case we present was complicated by gastric perforation; the patient made a successful recovery following open splenopexy and stapled wedge resection of the stomach. CONCLUSIONS A wandering spleen is a rare diagnosis and there are only six reported cases of gastric outlet obstruction secondary to a wandering spleen in the literature. None report associated gastric perforation. There are a variety of presenting symptoms, intraoperative findings and operative techniques used to address the gastrosplenic abnormality. The case reported by our centre adds to this limited evidence base and demonstrates a successful outcome from definitive surgical management. We highlight the need to seek early gastro-oesophageal expertise if any gastric pathology is found together with anatomical abnormality of the spleen.
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Affiliation(s)
- E Moore
- Royal Surrey NHS Foundation Trust, UK
| | | | | | | | | | | | - S Preston
- Royal Surrey NHS Foundation Trust, UK
| | - P Singh
- Royal Surrey NHS Foundation Trust, UK
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Potpara T, Marinkovic M, Mihajlovic M, Mujovic N, Kocijancic A, Mijatovic Z, Radovanovic M, Matic D, Milosevic A, Savic L, Subotic I, Uscumlic A, Zlatic N, Antonijevic J, Vesic O, Vucic R, Martinovic SS, Kostic T, Atanaskovic V, Mitic V, Stanojevic D, Petrovic M. Cohort profile: the ESC EURObservational Research Programme Non-ST-segment elevation myocardial infraction (NSTEMI) Registry. Eur Heart J Qual Care Clin Outcomes 2022; 9:8-15. [PMID: 36259751 DOI: 10.1093/ehjqcco/qcac067] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/12/2022]
Abstract
AIMS The European Society of Cardiology (ESC) EURObservational Research Programme (EORP) Non-ST-segment elevation myocardial infarction (NSTEMI) Registry aims to identify international patterns in NSTEMI management in clinical practice and outcomes against the 2015 ESC Guidelines for the management of acute coronary syndromes in patients presenting without ST-segment-elevation. METHODS AND RESULTS Consecutively hospitalised adult NSTEMI patients (n = 3620) were enrolled between 11 March 2019 and 6 March 2021, and individual patient data prospectively collected at 287 centres in 59 participating countries during a two-week enrolment period per centre. The registry collected data relating to baseline characteristics, major outcomes (in-hospital death, acute heart failure, cardiogenic shock, bleeding, stroke/transient ischaemic attack, and 30-day mortality) and guideline-recommended NSTEMI care interventions: electrocardiogram pre- or in-hospital, pre-hospitalization receipt of aspirin, echocardiography, coronary angiography, referral to cardiac rehabilitation, smoking cessation advice, dietary advice, and prescription on discharge of aspirin, P2Y12 inhibition, angiotensin converting enzyme inhibitor (ACEi)/angiotensin receptor blocker (ARB), beta-blocker, and statin. CONCLUSION The EORP NSTEMI Registry is an international, prospective registry of care and outcomes of patients treated for NSTEMI, which will provide unique insights into the contemporary management of hospitalised NSTEMI patients, compliance with ESC 2015 NSTEMI Guidelines, and identify potential barriers to optimal management of this common clinical presentation associated with significant morbidity and mortality.
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Affiliation(s)
- Ramesh Nadarajah
- Leeds Institute for Cardiovascular and Metabolic Medicine, University of Leeds, LS2 9JT Leeds, UK.,Leeds Institute of Data Analytics, University of Leeds, LS2 9JT Leeds, UK.,Department of Cardiology, Leeds Teaching Hospitals NHS Trust, LS1 3EX Leeds, UK
| | - Peter Ludman
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Yolande Appelman
- Department of Cardiology, Amsterdam UMC-Vrije Universiteit, Amsterdam Cardiovascular Sciences, Amsterdam, Netherlands
| | - Salvatore Brugaletta
- Hospital Clinic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Andrzej Budaj
- Department of Cardiology, Center of Postgraduate Medical Education, Grochowski Hospital, Warsaw, Poland
| | - Hector Bueno
- Cardiology Department, Hospital Universitario 12 de Octubre and Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), Madrid, Spain.,Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Kurt Huber
- 3rd Medical Department, Cardiology and Intensive Care Medicine, Clinic Ottakring (Wilhelminenhospital), Vienna, Austria.,Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - Vijay Kunadian
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Cardiothoracic Centre, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Sergio Leonardi
- University of Pavia, Pavia, Italy.,Fondazione IRCCS Policlinico S.Matteo, Pavia, Italy
| | - Maddalena Lettino
- Cardio-Thoracic and Vascular Department, San Gerardo Hospital, ASST-Monza, Monza, Italy
| | - Dejan Milasinovic
- Department of Cardiology, University Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Chris P Gale
- Leeds Institute for Cardiovascular and Metabolic Medicine, University of Leeds, LS2 9JT Leeds, UK.,Leeds Institute of Data Analytics, University of Leeds, LS2 9JT Leeds, UK.,Department of Cardiology, Leeds Teaching Hospitals NHS Trust, LS1 3EX Leeds, UK
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Judson MA, Adelstein E, Fish KM, Feustel PJ, Yucel R, Preston S, Vancavage R, Chopra A, Steckman DA. Outcomes of prednisone-tapering regimens for cardiac sarcoidosis: A retrospective analysis demonstrating a benefit of infliximab. Respir Med 2022; 203:107004. [DOI: 10.1016/j.rmed.2022.107004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 01/01/2023]
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Holst Hansen C, Engset I, Atar D, Dyduch-Fejklowicz B, Koba E, Cichocka M, Sokal A, Kubicius A, Pruchniewicz E, Kowalik-Sztylc A, Czapla W, Mróz I, Kozlowski M, Pawlowski T, Tendera M, Winiarska-Filipek A, Fidyk A, Slowikowski A, Haberka M, Lachor-Broda M, Biedron M, Gasior Z, Kołodziej M, Janion M, Gorczyca-Michta I, Wozakowska-Kaplon B, Stasiak M, Jakubowski P, Ciurus T, Drozdz J, Simiera M, Zajac P, Wcislo T, Zycinski P, Kasprzak J, Olejnik A, Harc-Dyl E, Miarka J, Pasieka M, Ziemińska-Łuć M, Bujak W, Śliwiński A, Grech A, Morka J, Petrykowska K, Prasał M, Hordyński G, Feusette P, Lipski P, Wester A, Streb W, Romanek J, Woźniak P, Chlebuś M, Szafarz P, Stanik W, Zakrzewski M, Kaźmierczak J, Przybylska A, Skorek E, Błaszczyk H, Stępień M, Szabowski S, Krysiak W, Szymańska M, Karasiński J, Blicharz J, Skura M, Hałas K, Michalczyk L, Orski Z, Krzyżanowski K, Skrobowski A, Zieliński L, Tomaszewska-Kiecana M, Dłużniewski M, Kiliszek M, Peller M, Budnik M, Balsam P, Opolski G, Tymińska A, Ozierański K, Wancerz A, Borowiec A, Majos E, Dabrowski R, Szwed H, Musialik-Lydka A, Leopold-Jadczyk A, Jedrzejczyk-Patej E, Koziel M, Lenarczyk R, Mazurek M, Kalarus Z, Krzemien-Wolska K, Starosta P, Nowalany-Kozielska E, Orzechowska A, Szpot M, Staszel M, Almeida S, Pereira H, Brandão Alves L, Miranda R, Ribeiro L, Costa F, Morgado F, Carmo P, Galvao Santos P, Bernardo R, Adragão P, Ferreira da Silva G, Peres M, Alves M, Leal M, Cordeiro A, Magalhães P, Fontes P, Leão S, Delgado A, Costa A, Marmelo B, Rodrigues B, Moreira D, Santos J, Santos L, Terchet A, Darabantiu D, Mercea S, Turcin Halka V, Pop Moldovan A, Gabor A, Doka B, Catanescu G, Rus H, Oboroceanu L, Bobescu E, Popescu R, Dan A, Buzea A, Daha I, Dan G, Neuhoff I, Baluta M, Ploesteanu R, Dumitrache N, Vintila M, Daraban A, Japie C, Badila E, Tewelde H, Hostiuc M, Frunza S, Tintea E, Bartos D, Ciobanu A, Popescu I, Toma N, Gherghinescu C, Cretu D, Patrascu N, Stoicescu C, Udroiu C, Bicescu G, Vintila V, Vinereanu D, Cinteza M, Rimbas R, Grecu M, Cozma A, Boros F, Ille M, Tica O, Tor R, Corina A, Jeewooth A, Maria B, Georgiana C, Natalia C, Alin D, Dinu-Andrei D, Livia M, Daniela R, Larisa R, Umaar S, Tamara T, Ioachim Popescu M, Nistor D, Sus I, Coborosanu O, Alina-Ramona N, Dan R, Petrescu L, Ionescu G, Popescu I, Vacarescu C, Goanta E, Mangea M, Ionac A, Mornos C, Cozma D, Pescariu S, Solodovnicova E, Soldatova I, Shutova J, Tjuleneva L, Zubova T, Uskov V, Obukhov D, Rusanova G, Soldatova I, Isakova N, Odinsova S, Arhipova T, Kazakevich E, Serdechnaya E, Zavyalova O, Novikova T, Riabaia I, Zhigalov S, Drozdova E, Luchkina I, Monogarova Y, Hegya D, Rodionova L, Rodionova L, Nevzorova V, Soldatova I, Lusanova O, Arandjelovic A, Toncev D, Milanov M, Sekularac N, Zdravkovic M, Hinic S, Dimkovic S, Acimovic T, Saric J, Polovina M, Potpara T, Vujisic-Tesic B, Nedeljkovic M, Zlatar M, Asanin M, Vasic V, Popovic Z, Djikic D, Sipic M, Peric V, Dejanovic B, Milosevic N, Stevanovic A, Andric A, Pencic B, Pavlovic-Kleut M, Celic V, Pavlovic M, Petrovic M, Vuleta M, Petrovic N, Simovic S, Savovic Z, Milanov S, Davidovic G, Iric-Cupic V, Simonovic D, Stojanovic M, Stojanovic S, Mitic V, Ilic V, Petrovic D, Deljanin Ilic M, Ilic S, Stoickov V, Markovic S, Kovacevic S, García Fernandez A, Perez Cabeza A, Anguita M, Tercedor Sanchez L, Mau E, Loayssa J, Ayarra M, Carpintero M, Roldán Rabadan I, Leal M, Gil Ortega M, Tello Montoliu A, Orenes Piñero E, Manzano Fernández S, Marín F, Romero Aniorte A, Veliz Martínez A, Quintana Giner M, Ballesteros G, Palacio M, Alcalde O, García-Bolao I, Bertomeu Gonzalez V, Otero-Raviña F, García Seara J, Gonzalez Juanatey J, Dayal N, Maziarski P, Gentil-Baron P, Shah D, Koç M, Onrat E, Dural IE, Yilmaz K, Özin B, Tan Kurklu S, Atmaca Y, Canpolat U, Tokgozoglu L, Dolu AK, Demirtas B, Sahin D, Ozcan Celebi O, Diker E, Gagirci G, Turk UO, Ari H, Polat N, Toprak N, Sucu M, Akin Serdar O, Taha Alper A, Kepez A, Yuksel Y, Uzunselvi A, Yuksel S, Sahin M, Kayapinar O, Ozcan T, Kaya H, Yilmaz MB, Kutlu M, Demir M, Gibbs C, Kaminskiene S, Bryce M, Skinner A, Belcher G, Hunt J, Stancombe L, Holbrook B, Peters C, Tettersell S, Shantsila A, Lane D, Senoo K, Proietti M, Russell K, Domingos P, Hussain S, Partridge J, Haynes R, Bahadur S, Brown R, McMahon S, Y H Lip G, McDonald J, Balachandran K, Singh R, Garg S, Desai H, Davies K, Goddard W, Galasko G, Rahman I, Chua Y, Payne O, Preston S, Brennan O, Pedley L, Whiteside C, Dickinson C, Brown J, Jones K, Benham L, Brady R, Buchanan L, Ashton A, Crowther H, Fairlamb H, Thornthwaite S, Relph C, McSkeane A, Poultney U, Kelsall N, Rice P, Wilson T, Wrigley M, Kaba R, Patel T, Young E, Law J, Runnett C, Thomas H, McKie H, Fuller J, Pick S, Sharp A, Hunt A, Thorpe K, Hardman C, Cusack E, Adams L, Hough M, Keenan S, Bowring A, Watts J, Zaman J, Goffin K, Nutt H, Beerachee Y, Featherstone J, Mills C, Pearson J, Stephenson L, Grant S, Wilson A, Hawksworth C, Alam I, Robinson M, Ryan S, Egdell R, Gibson E, Holland M, Leonard D, Mishra B, Ahmad S, Randall H, Hill J, Reid L, George M, McKinley S, Brockway L, Milligan W, Sobolewska J, Muir J, Tuckis L, Winstanley L, Jacob P, Kaye S, Morby L, Jan A, Sewell T, Boos C, Wadams B, Cope C, Jefferey P, Andrews N, Getty A, Suttling A, Turner C, Hudson K, Austin R, Howe S, Iqbal R, Gandhi N, Brophy K, Mirza P, Willard E, Collins S, Ndlovu N, Subkovas E, Karthikeyan V, Waggett L, Wood A, Bolger A, Stockport J, Evans L, Harman E, Starling J, Williams L, Saul V, Sinha M, Bell L, Tudgay S, Kemp S, Brown J, Frost L, Ingram T, Loughlin A, Adams C, Adams M, Hurford F, Owen C, Miller C, Donaldson D, Tivenan H, Button H, Nasser A, Jhagra O, Stidolph B, Brown C, Livingstone C, Duffy M, Madgwick P, Roberts P, Greenwood E, Fletcher L, Beveridge M, Earles S, McKenzie D, Beacock D, Dayer M, Seddon M, Greenwell D, Luxton F, Venn F, Mills H, Rewbury J, James K, Roberts K, Tonks L, Felmeden D, Taggu W, Summerhayes A, Hughes D, Sutton J, Felmeden L, Khan M, Walker E, Norris L, O’Donohoe L, Mozid A, Dymond H, Lloyd-Jones H, Saunders G, Simmons D, Coles D, Cotterill D, Beech S, Kidd S, Wrigley B, Petkar S, Smallwood A, Jones R, Radford E, Milgate S, Metherell S, Cottam V, Buckley C, Broadley A, Wood D, Allison J, Rennie K, Balian L, Howard L, Pippard L, Board S, Pitt-Kerby T. Epidemiology and impact of frailty in patients with atrial fibrillation in Europe. Age Ageing 2022; 51:6670566. [PMID: 35997262 DOI: 10.1093/ageing/afac192] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [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: 03/17/2022] [Revised: 06/08/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Frailty is a medical syndrome characterised by reduced physiological reserve and increased vulnerability to stressors. Data regarding the relationship between frailty and atrial fibrillation (AF) are still inconsistent. OBJECTIVES We aim to perform a comprehensive evaluation of frailty in a large European cohort of AF patients. METHODS A 40-item frailty index (FI) was built according to the accumulation of deficits model in the AF patients enrolled in the ESC-EHRA EORP-AF General Long-Term Registry. Association of baseline characteristics, clinical management, quality of life, healthcare resources use and risk of outcomes with frailty was examined. RESULTS Among 10,177 patients [mean age (standard deviation) 69.0 (11.4) years, 4,103 (40.3%) females], 6,066 (59.6%) were pre-frail and 2,172 (21.3%) were frail, whereas only 1,939 (19.1%) were considered robust. Baseline thromboembolic and bleeding risks were independently associated with increasing FI. Frail patients with AF were less likely to be treated with oral anticoagulants (OACs) (odds ratio 0.70, 95% confidence interval 0.55-0.89), especially with non-vitamin K antagonist OACs and managed with a rhythm control strategy, compared with robust patients. Increasing frailty was associated with a higher risk for all outcomes examined, with a non-linear exponential relationship. The use of OAC was associated with a lower risk of outcomes, except in patients with very/extremely high frailty. CONCLUSIONS In this large cohort of AF patients, there was a high burden of frailty, influencing clinical management and risk of adverse outcomes. The clinical benefit of OAC is maintained in patients with high frailty, but not in very high/extremely frail ones.
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Affiliation(s)
- Marco Proietti
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy
| | - Giulio Francesco Romiti
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.,Department of Translational and Precision Medicine, Sapienza - University of Rome, Italy
| | - Marco Vitolo
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.,Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Policlinico di Modena, Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Stephanie L Harrison
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK
| | - Deirdre A Lane
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Laurent Fauchier
- Service de Cardiologie, Centre Hospitalier Universitaire Trousseau, Tours, France
| | - Francisco Marin
- Department of Cardiology, Hospital Universitario Virgen de la Arrixaca, IMIB-Arrixaca, University of Murcia, CIBER-CV, Murcia, Spain
| | - Michael Näbauer
- Department of Cardiology, Ludwig-Maximilians-University, Munich, Germany
| | - Tatjana S Potpara
- School of Medicine, University of Belgrade, Belgrade, Serbia.,Clinical Center of Serbia, Belgrade, Serbia
| | - Gheorghe-Andrei Dan
- University of Medicine, 'Carol Davila', Colentina University Hospital, Bucharest, Romania
| | - Aldo P Maggioni
- ANMCO Research Center, Heart Care Foundation, Florence, Italy
| | - Matteo Cesari
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy
| | - Giuseppe Boriani
- Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Policlinico di Modena, Modena, Italy
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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Liu J, Eisenbeis L, Preston S, Burnett A, DiCarlo H, O'Brien Coon D. Post-Phalloplasty Urinary Function Test: A Novel Outcome Instrument to Capture Urinary Dysfunction and Quality of Life after Phalloplasty. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.168] [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: 11/16/2022]
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Judson MA, Yucel R, Preston S, Chen ES, Culver DA, Hamzeh N, Lower EE, Sweiss NJ, Valeyre D, Veltkamp M, Victorson DE, Beaumont JL, Singh N, Shivas T, Vancavage R, Baughman RP. The association of baseline sarcoidosis measurements with 6-month outcomes that are of interest to patients: Results from the On-line Sarcoidosis Assessment Platform Study (OSAP). Respir Med 2022; 196:106819. [DOI: 10.1016/j.rmed.2022.106819] [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] [Received: 08/13/2021] [Revised: 02/14/2022] [Accepted: 03/09/2022] [Indexed: 01/17/2023]
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Ahmadi N, Preston S, Barbar J, Aresu G, Peryt A, Mahadeva R, Coonar A. 485 Unexpected Pathological Findings In 189 LVRS Patients: Clinical Relevance. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
Objectives
LVRS improves survival and quality of life in selected patients with emphysema. In view of the great improvement in the detailed information available from CT, it is important to evaluate the benefit of routine pathological assessment of the resected specimen. We reviewed the histopathological findings in our contemporary LVRS series to determine the rate of pathological findings in addition to emphysema.
Method
Prospectively collected data from a specialised higher volume LVRS centre. The CT and histopathology reports of 189 consecutive LVRS procedures were reviewed. One underwent thoracotomy, 188 were by VATS, of which one was converted to thoracotomy and of which 22 were by a subxiphoid approach. The target reduction volume was 30-50% of the lung.
Results
All patients were reported to have emphysematous changes in both CT and histology. Ten patients, all with radiographic evidence of a lesion preoperatively, had squamous carcinoma (x2), adenocarcinoma, atypical adenomatous hyperplasia (AAH) (x2), squamous metaplasia (x2), carcinoid tumourlet, chondroid hamartoma, and DIPNECH. There were 39 neoplastic histological findings which were not radiologically reported; these were adenocarcinoma (1), AAH (10), squamous metaplasia (7), carcinoid tumourlet (5), squamous dysplasia (3), neuroendocrine hyperplasia (2), and chemodectoma. In addition, 21 inflammatory/infective cases were also reported.
Conclusions
Our systemic retrospective CT and histopathology review of LVRS operations shows that the rate of additional findings is 32%. Of these 83% were not reported on the pre-operative review of the CT. This supports the value of systematic pathological assessment of resected samples.
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Affiliation(s)
- N Ahmadi
- Royal Papworth Hospital, Cambridge, United Kingdom
| | - S Preston
- Royal Papworth Hospital, Cambridge, United Kingdom
| | - J Barbar
- Cambridge Hospital, Cambridge, United Kingdom
| | - G Aresu
- Royal Papworth Hospital, Cambridge, United Kingdom
| | - A Peryt
- Royal Papworth Hospital, Cambridge, United Kingdom
| | - R Mahadeva
- Cambridge Hospital, Cambridge, United Kingdom
| | - A Coonar
- Royal Papworth Hospital, Cambridge, United Kingdom
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Sloan S, Jenvey CJ, Piedrafita D, Preston S, Stear MJ. Comparative evaluation of different molecular methods for DNA extraction from individual Teladorsagia circumcincta nematodes. BMC Biotechnol 2021; 21:35. [PMID: 34001079 PMCID: PMC8130168 DOI: 10.1186/s12896-021-00695-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/09/2021] [Indexed: 11/10/2022] Open
Abstract
Background The purpose of this study was to develop a reliable DNA extraction protocol to use on individual Teladorsagia circumcincta nematode specimens to produce high quality DNA for genome sequencing and phylogenetic analysis. Pooled samples have been critical in providing the groundwork for T. circumcincta genome construction, but there is currently no standard method for extracting high-quality DNA from individual nematodes. 11 extraction kits were compared based on DNA quality, yield, and processing time. Results 11 extraction protocols were compared, and the concentration and purity of the extracted DNA was quantified. Median DNA concentration among all methods measured on NanoDrop 2000™ ranged between 0.45–11.5 ng/μL, and on Qubit™ ranged between undetectable – 0.962 ng/μL. Median A260/280 ranged between 0.505–3.925, and median A260/230 ranged − 0.005 – 1.545. Larval exsheathment to remove the nematode cuticle negatively impacted DNA concentration and purity. Conclusions A Schistosoma sp. DNA extraction method was determined as most suitable for individual T. circumcincta nematode specimens due to its resulting DNA concentration, purity, and relatively fast processing time. Supplementary Information The online version contains supplementary material available at 10.1186/s12896-021-00695-6.
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Affiliation(s)
- S Sloan
- AgriBio Centre for AgriBioscience, Department of Animal, Plant and Soil Sciences, School of Life Sciences, La Trobe University, 5 Ring Road, Bundoora, Victoria, 3086, Australia.
| | - C J Jenvey
- AgriBio Centre for AgriBioscience, Department of Animal, Plant and Soil Sciences, School of Life Sciences, La Trobe University, 5 Ring Road, Bundoora, Victoria, 3086, Australia
| | - D Piedrafita
- School of Science, Psychology and Sport, Federation University, Churchill, Victoria, Australia
| | - S Preston
- School of Science, Psychology and Sport, Federation University, Churchill, Victoria, Australia
| | - M J Stear
- AgriBio Centre for AgriBioscience, Department of Animal, Plant and Soil Sciences, School of Life Sciences, La Trobe University, 5 Ring Road, Bundoora, Victoria, 3086, Australia
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Helms A, Gilhotra R, Preston S, Saireddy R, Starmer G, Sutcliffe S. P188 Aboriginal and Torres Strait Australians have significantly worse coronary disease, risk factors and 4 year outcomes compared with non-indigenous Australians. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
The Aboriginal and Torres Strait Islander (ATSI) population in Australia appear to present with coronary disease more frequently, have worse risk factors, worse coronary disease and poorer outcomes, however there is limited data available on this population. The ATSI population represent 8% of the Cairns total population. We undertook to compare these findings and four-year outcomes in ATSI versus non-indigenous patients aged < 50 years old undergoing coronary angiography.
Methods
We collected data on all patients aged < 50 years old, who underwent coronary angiography at Cairns Hospital over a two-year period (2014-2016), from the Queensland Coronary Outcomes Registry. Data of patient risk factors and 4 year outcomes were collected using electronic hospital medical records and electronic discharge summaries available on all Queensland patients. Patients residing outside Queensland were excluded.
Results
From 2014-2016, a total of 555 patients < 50 years old underwent coronary angiography. The average age was 43. 322 (58.0%) patients were male and 233 (42.0%) were female. 271 patients (48.8%) identified as ATSI.
Coronary risk factors - 42.4% of ATSI patients had diabetes vs 13.7 in the non-indigenous group, 58.7% of ATSI patients vs 43.7% had hyperlipidaemia, 61.3% of ATSI patients vs 39.8% were current smokers, 65.3% of ATSI patients vs 42.3% were hypertensive, and 64.2% of ATSI patients vs 50.4% had a family history of premature coronary artery disease. This demonstrates significantly higher incidence of cardiac risk factors in ATSI patients (combined risk factors P = 0.00086).
When comparing coronary artery disease, as demonstrated by coronary angiography, the ATSI group had significantly more abnormal coronary angiograms - 74.5% compared to the non-indigenous group 42.3% (P = 0.000006). There was not a statistically significant difference between the severity of coronary artery disease between the two populations who had coronary disease, however, the ATSI population demonstrated a higher incidence of triple vessel disease. ATSI patients were more likely to have repeat coronary angiography 11% vs 4%.
In the four-year follow up period, 18.5% of the ATSI population had at least one major adverse cardiac event (MACE), whereas in the non-indigenous group 7.0% had at least one MACE.
There was not a statistically significant difference between all cause mortality between the two populations.
Conclusion
We have shown that Aboriginal and Torres Strait Islanders Australians are more likely to have coronary angiography at a younger age. That Aboriginal and Torres Strait Islanders Australians have a significantly higher incidence of cardiac risk factors, higher incidence of coronary artery disease, and more major cardiac events after undergoing coronary angiography compared to non-indigenous patients. The all cause mortality in this young population was not significantly different.
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Affiliation(s)
- A Helms
- Cairns Hospital, Cairns, Australia
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McMaster A, Helms A, Nguyen S, Preston S, Brazzale A, Starmer G. 867 Percutaneous Intervention to Saphenous Vein Graft in Far North Queensland; Feasibility and Safety in a Regional Centre. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.874] [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: 11/28/2022]
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11
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Judson MA, Preston S, Hu K, Zhang R, Jou S, Modi A, Sukhu I, Ilyas F, Rosoklija G, Yucel R. Quantifying the relationship between symptoms at presentation and the prognosis of sarcoidosis. Respir Med 2019; 152:14-19. [PMID: 31128604 DOI: 10.1016/j.rmed.2019.03.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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] [Received: 02/15/2019] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND Although it is the general consensus that sarcoidosis patients who present with sarcoidosis-related symptoms have a worse outcome than patients whose disease is detected incidentally without symptoms, this premise has not been rigorously examined. METHODS Consecutive patients followed longitudinally at one US university sarcoidosis clinic were questioned concerning the onset and description of sarcoidosis-related symptoms at disease presentation. The patients were classified into those with no sarcoidosis-related symptoms at presentation (NSP group) and those with symptoms at presentation (SP group). The following outcomes were examined in the NSP and SP groups: most recent spirometry, organ involvement, need for sarcoidosis therapy, most recent health related quality of life (HRQOL) as measured by the Sarcoidosis Assessment Tool (SAT), most recent chest imaging Scadding stage results. RESULTS 660 sarcoidosis patients were analyzed, with 175 in the NSP group and 485 in the SP group. Compared to the NSP group, the SP group had a more frequent requirement for any sarcoidosis treatment, corticosteroid treatment, and non-corticosteroid treatment at some time and within the most recent year of follow up (at least 50% more than the NP group with strong statistical differences with p values all 0.01 or less). In addition, the SP group had significantly more organ involvement (p < 0.001) and several worse SAT domains (p < 0.022) than the NP group. There were no differences between the groups in terms of final spirometry or development of Scadding stage 4 chest radiographs. These findings held even after adjusting for age, sex, race, and time between presentation and the most recent follow-up visit using a multivariable logistic regression framework. CONCLUSIONS In our sarcoidosis cohort, compared to the absence of symptoms at presentation, the presence of symptoms was associated with a greater need for treatment, more organ involvement, and worse HRQOL.
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Affiliation(s)
- Marc A Judson
- Division of Pulmonary and Critical Care Medicine, Albany Medical College, Albany, NY, USA.
| | - Sara Preston
- Division of Pulmonary and Critical Care Medicine, Albany Medical College, Albany, NY, USA; St. George's University School of Medicine, Grenada, West Indies
| | - Kurt Hu
- Division of Pulmonary and Critical Care Medicine, Albany Medical College, Albany, NY, USA
| | - Robert Zhang
- Department of Medicine, Albany Medical Center, Albany, NY, USA
| | - Stephanie Jou
- Department of Medicine, Albany Medical Center, Albany, NY, USA
| | - Aakash Modi
- Division of Pulmonary and Critical Care Medicine, Albany Medical College, Albany, NY, USA
| | - Indrawattie Sukhu
- Division of Pulmonary and Critical Care Medicine, Albany Medical College, Albany, NY, USA
| | - Furqan Ilyas
- Division of Pulmonary and Critical Care Medicine, Albany Medical College, Albany, NY, USA
| | | | - Recai Yucel
- Department of Epidemiology and Biostatistics, School of Public Health, State University of New York, Albany, USA
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Worley GHT, Preston S, Clark SK. Ileoanal pouch excision - a video vignette. Colorectal Dis 2019; 21:247. [PMID: 30548968 DOI: 10.1111/codi.14530] [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: 11/09/2018] [Accepted: 12/03/2018] [Indexed: 02/08/2023]
Affiliation(s)
- G H T Worley
- St Mark's Hospital and Academic Institute, London North West Healthcare NHS Trust, Middlesex, HA1 3UJ, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
| | - S Preston
- St Mark's Hospital and Academic Institute, London North West Healthcare NHS Trust, Middlesex, HA1 3UJ, UK
| | - S K Clark
- St Mark's Hospital and Academic Institute, London North West Healthcare NHS Trust, Middlesex, HA1 3UJ, UK.,Department of Surgery and Cancer, Imperial College London, London, UK
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13
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Laver S, Preston S, Turner D, McKinstry C, Padkin A. Implementing Intensive Insulin Therapy: Development and Audit of the Bath Insulin Protocol. Anaesth Intensive Care 2019; 32:311-6. [PMID: 15264724 DOI: 10.1177/0310057x0403200302] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [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: 11/15/2022]
Abstract
Intensive insulin therapy to control blood glucose has been found to reduce mortality among critically ill patients in a surgical intensive care unit, though a simple prescriptive insulin infusion protocol to achieve this has not been published previously. This study documents the development and routine use of a simple prescriptive intravenous insulin infusion protocol for critically ill patients and compares the results with previous practice. During development the protocol was optimized and practical issues of implementation addressed. The optimized protocol was then used for all ICU admissions, and a prospectively defined retrospective chart audit performed for the first month of use. Results were compared with a similar time period the previous year. In September 2002, 27 admissions were started on the protocol. Blood glucose for the time on the protocol had a median value of 6.2 (IQR 5.9-7.1) mmol/l compared with 9.2 (IQR 8.1-10.2) mmol/l for those on insulin in 2001. Blood glucose for the whole ICU stay for those on the protocol in 2002 had a median value of 6.6 (IQR 6.0-7.4) mmol/l compared with 8.6 (IQR 8.0-9.4) mmol/l in 2001. Blood glucose for all ICU patients in 2002 had a median value of 6.5 (IQR 6.0-7.3) mmol/l compared with 7.2 (IQR 6.3-8.3) mmol/l in 2001. Three blood glucose recordings were less than 2.2 mmol/l in September 2002. This study provides initial effectiveness and safety data for the Bath Insulin Protocol. Further audits in a larger patient population are now needed.
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Affiliation(s)
- S Laver
- Department of Anaesthesia and Intensive Care, Royal United Hospital, Bath, United Kingdom
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14
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Lees J, Michalopoulou PG, Lewis SW, Preston S, Bamford C, Collier T, Kalpakidou A, Wykes T, Emsley R, Pandina G, Kapur S, Drake RJ. Modafinil and cognitive enhancement in schizophrenia and healthy volunteers: the effects of test battery in a randomised controlled trial. Psychol Med 2017; 47:2358-2368. [PMID: 28464963 DOI: 10.1017/s0033291717000885] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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] [Indexed: 01/05/2023]
Abstract
BACKGROUND Cognitive deficits in schizophrenia have major functional impacts. Modafinil is a cognitive enhancer whose effect in healthy volunteers is well-described, but whose effects on the cognitive deficits of schizophrenia appear to be inconsistent. Two possible reasons for this are that cognitive test batteries vary in their sensitivity, or that the phase of illness may be important, with patients early in their illness responding better. METHODS A double-blind, randomised, placebo-controlled single-dose crossover study of modafinil 200 mg examined this with two cognitive batteries [MATRICS Consensus Cognitive Battery (MCCB) and Cambridge Neuropsychological Test Automated Battery (CANTAB)] in 46 participants with under 3 years' duration of DSM-IV schizophrenia, on stable antipsychotic medication. In parallel, the same design was used in 28 age-, sex-, and education-matched healthy volunteers. Uncorrected p values were calculated using mixed effects models. RESULTS In patients, modafinil significantly improved CANTAB Paired Associate Learning, non-significantly improved efficiency and significantly slowed performance of the CANTAB Stockings of Cambridge spatial planning task. There was no significant effect on any MCCB domain. In healthy volunteers, modafinil significantly increased CANTAB Rapid Visual Processing, Intra-Extra Dimensional Set Shifting and verbal recall accuracy, and MCCB social cognition performance. The only significant differences between groups were in MCCB visual learning. CONCLUSIONS As in earlier chronic schizophrenia studies, modafinil failed to produce changes in cognition in early psychosis as measured by MCCB. CANTAB proved more sensitive to the effects of modafinil in participants with early schizophrenia and in healthy volunteers. This confirms the importance of selecting the appropriate test battery in treatment studies of cognition in schizophrenia.
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Affiliation(s)
- J Lees
- Division of Psychology & Mental Health,School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre,Manchester,UK
| | - P G Michalopoulou
- Institute of Psychiatry,Psychology and Neuroscience,King's Health Partners,London,UK
| | - S W Lewis
- Division of Psychology & Mental Health,School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre,Manchester,UK
| | - S Preston
- Division of Psychology & Mental Health,School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre,Manchester,UK
| | - C Bamford
- Division of Psychology & Mental Health,School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre,Manchester,UK
| | - T Collier
- Institute of Psychiatry,Psychology and Neuroscience,King's Health Partners,London,UK
| | - A Kalpakidou
- Institute of Psychiatry,Psychology and Neuroscience,King's Health Partners,London,UK
| | - T Wykes
- Institute of Psychiatry,Psychology and Neuroscience,King's Health Partners,London,UK
| | - R Emsley
- Division of Population Health,Health Services Research & Primary Care, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre,Manchester,UK
| | - G Pandina
- Janssen Research & Development, LLC,New Brunswick,New Jersey,USA
| | - S Kapur
- Institute of Psychiatry,Psychology and Neuroscience,King's Health Partners,London,UK
| | - R J Drake
- Division of Psychology & Mental Health,School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre,Manchester,UK
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15
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Segal JP, Ding NS, Worley G, Mclaughlin S, Preston S, Faiz OD, Clark SK, Hart AL. Systematic review with meta-analysis: the management of chronic refractory pouchitis with an evidence-based treatment algorithm. Aliment Pharmacol Ther 2017; 45:581-592. [PMID: 28008631 DOI: 10.1111/apt.13905] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [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] [Received: 10/04/2016] [Revised: 10/18/2016] [Accepted: 11/24/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Restorative proctocolectomy with ileal pouch anal anastomosis (IPAA) is considered the procedure of choice in patients with ulcerative colitis (UC) refractory to medical therapy. The incidence of pouchitis is 40% at 5 years. Ten to 15% of patients with pouchitis experience chronic pouchitis. AIM To determine the efficacy of medical therapies for the treatment of chronic refractory pouchitis in patients undergoing IPAA for UC. METHODS A systematic computer-assisted search of the on-line bibliographic database MEDLINE and EMBASE was performed between 1966 and February 2016. All original studies reporting remission rates following medical treatment for chronic pouchitis were included. All study designs were considered. Remission was defined according to the individual study. Remission endpoints ranged from 15 days to 10 weeks. Chronic pouchitis was defined by each study. RESULTS Twenty-one papers were considered eligible. Results from all studies combined suggested that overall remission was obtained in 59% of patients (95% CI: 44-73%). Antibiotics significantly induced remission in patients with chronic pouchitis with 74% remission rate (95% CI:56-93%), (P < 0.001). Biologics significantly induced remission in patients with chronic pouchitis with 53% remission rate (95% CI:30-76%), (P < 0.001). Steroids, bismuth, elemental diet and tacrolimus all can induce remission but failed to achieve significance. Faecal microbiota transplantation in a single study was not found to achieve remission. CONCLUSIONS Treatment of chronic refractory pouchitis remains difficult and is largely empirical. Larger randomised controlled trials will help aid the management of chronic pouchitis.
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Affiliation(s)
- J P Segal
- St. Mark's Hospital, Harrow, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - N S Ding
- St. Mark's Hospital, Harrow, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | - G Worley
- St. Mark's Hospital, Harrow, UK.,Department of Surgery and Cancer, Imperial College, London, UK
| | | | | | - O D Faiz
- Department of Surgery and Cancer, Imperial College, London, UK
| | - S K Clark
- Department of Surgery and Cancer, Imperial College, London, UK
| | - A L Hart
- St. Mark's Hospital, Harrow, UK.,Department of Surgery and Cancer, Imperial College, London, UK
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16
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Preston S, Nelson R, Watts M, Smith D, Dewenter T, Spruill D. Not Another ACS Rule Out. J La State Med Soc 2017; 169:47. [PMID: 28414663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CASE A 50 year old African-American woman with diabetes, hypertension, and hyperlipidemia presented with progressively worsening retro-sternal chest pain, exacerbated by activity and relieved by rest. She also endorsed a thirty-pound unintentional weight loss, and dysphagia. She was dysarthric with left-sided Bell's Palsy and a palpable left axillary lymph node. She had been evaluated at several hospitals in the previous months for similar typical chest pain. Her troponin values were normal, and an EKG showed T-wave inversions in leads I and aVL. On echocardiography, her ejection fraction was 45 percent with anterolateral hypokinesis. She was treated for NSTEMI, and an angiogram showed 95 percent stenosis of the right coronary artery. A modified barium swallow study revealed weakened swallowing with aspiration of thin liquids. An MRI Brain demonstrated scattered T2/ FLAIR hyper-intense foci in the subcortical white matter and focal meningeal thickening. ANA, dsDNA, ANCA, and Lyme antibodies were all negative, and a chest CT showed hilar lymphadenopathy. Cardiac MRI demonstrated scattered foci of delayed enhancement in the mid-myocardium and sub-epicardium without infarction. An endobronchial biopsy of hilar lymph nodes showed two small epithelioid granulomas, consistent with Sarcoidosis. She was started on high-dose corticosteroids with rapid improvement. A repeat modified barium swallow study was normal and a repeat echocardiogram demonstrated recovered ejection fraction of 55 percent with improved wall motion in the septum and apex. Additionally, her left-sided Bell's Palsy and dysarthria improved after several days of therapy. DISCUSSION To our knowledge, this report is the third case of multi-organ Sarcoidosis presenting as ACS. This case depicts the simultaneous presentation of neurologic, pharyngeal, pulmonary, and cardiac Sarcoidosis. Myocardial involvement in Sarcoidosis is rare and usually presents as conduction abnormalities with arrhythmia rather than ACS. Though her symptoms were consistent with Sarcoidosis, she had multiple risk factors for coronary atherosclerosis including diabetes, hypertension, and hyperlipidemia. This case highlights the importance of including Sarcoidosis in the differential diagnosis for patients with recurrent typical chest pain of uncertain etiology.
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Affiliation(s)
- S Preston
- Tulane University School of Medicine, Department of Internal Medicine in New Orleans, LA
| | - R Nelson
- Tulane University School of Medicine, Department of Internal Medicine in New Orleans, LA
| | - M Watts
- Tulane University School of Medicine, Department of Internal Medicine in New Orleans, LA
| | - D Smith
- LSU Health Sciences Center, Department of Radiology in New Orleans, LA
| | - T Dewenter
- LSU Health Sciences Center, Department of Pathology in New Orleans, LA
| | - D Spruill
- Tulane University School of Medicine, Department of Internal Medicine in New Orleans, LA
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17
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Mackay LK, Minnich M, Kragten NAM, Liao Y, Nota B, Seillet C, Zaid A, Man K, Preston S, Freestone D, Braun A, Wynne-Jones E, Behr FM, Stark R, Pellicci DG, Godfrey DI, Belz GT, Pellegrini M, Gebhardt T, Busslinger M, Shi W, Carbone FR, van Lier RAW, Kallies A, van Gisbergen KPJM. Hobit and Blimp1 instruct a universal transcriptional program of tissue residency in lymphocytes. Science 2016; 352:459-63. [DOI: 10.1126/science.aad2035] [Citation(s) in RCA: 553] [Impact Index Per Article: 69.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 03/21/2016] [Indexed: 12/12/2022]
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18
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Hadinnapola C, Southwood M, Hernandez-Sanchez J, Sheares K, Preston S, Jenkins D, Morrell N, Toshner M, Pepke-Zaba J. P265 The clinical utility of biomarkers associated with inflammation and endothelial dysfunction in CTEPH: Abstract P265 Table 1. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.401] [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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19
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Preston S, Riggs CM. Descriptive analysis of longitudinal endoscopy for exercise-induced pulmonary haemorrhage in Thoroughbred racehorses training and racing at the Hong Kong Jockey Club - letter. Equine Vet J 2015; 47:374-5. [PMID: 25597337 DOI: 10.1111/evj.12388] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S Preston
- Department of Veterinary Science, University of Kentucky, USA
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20
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Kimber MS, Boyle MH, Lipman EL, Colwell SR, Georgiades K, Preston S. The associations between sex, immigrant status, immigrant concentration and intimate partner violence: evidence from the Canadian General Social Survey. Glob Public Health 2014; 8:796-821. [PMID: 23998702 DOI: 10.1080/17441692.2013.814701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Intimate partner violence (IPV) is an important public health concern, yet little is known about the combined effects of individual- and neighbourhood-level characteristics on IPV among immigrants. The aim of this study is to examine: (1) the association between immigrant status and IPV victimisation and whether sex modifies this association, and (2) the association between the neighbourhood concentration of immigrants and IPV victimisation, and whether immigrant status modifies this association. Our sample of 10,964 males and females comes from the 2009 Canadian General Social Survey. After controlling for covariates, immigrant status was not associated with IPV, and sex significantly modified the association between immigrant status and financial and physical/sexual IPV. Compared to males, second-generation females were less likely to report financial IPV and first-generation females were more likely to report physical/sexual IPV. Immigrant status modified the association between the neighbourhood concentration of immigrants and emotional and physical/sexual IPV. Compared to third-generation males, first-generation males living in neighbourhoods with a higher concentration of immigrants were more likely to report emotional IPV, whereas second-generation males in these neighbourhoods were less likely to report physical/sexual IPV. Interventions to reduce IPV should pay equal attention to individual- and neighbourhood-level influences.
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Affiliation(s)
- M S Kimber
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
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21
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d'Young AI, Young L, Ockelford PA, Brasser M, Slavin K, Manson L, Preston S. The use of a co-design model in improving timely bleed reporting by adults with haemophilia living in the Auckland region of New Zealand. Haemophilia 2013; 20:388-97. [PMID: 24286288 DOI: 10.1111/hae.12336] [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] [Subscribe] [Scholar Register] [Accepted: 10/30/2013] [Indexed: 11/27/2022]
Abstract
Many adult patients diagnosed with phenotypically moderate and severe haemophilia living in the Auckland region of New Zealand do not report bleeding episodes within a timeframe that allows for optimal assessment and management. This can result in poor clinical outcomes for patients and poor oversight of the use of expensive clotting factor concentrates. Our goal was to improve both the number and speed at which bleeding episodes were reported to our centre, improving access to care and clinical oversight of the use of expensive factor concentrates and aiding the development of a care partnership with patients. We worked with 70 adult PWH living in the Auckland region of New Zealand with moderate and severe haemophilia A and B. Over a 5-month period between March and July 2013 we used a co-design model to develop and implement a range of strategies to improve the timing and frequency of bleed reporting. Mean bleed reporting time was reduced threefold, with a threefold increase in the number of bleeds reported per month. We reduced the number of bleeding episodes reported outside of a prespecified 48-h time limit by 68%. We significantly improved bleed reporting and time to report, indicating improved access to our services, improved clinical oversight and improved accountability to our national funder. We have achieved a care partnership and a reduction in factor consumption for the study population without compromising the quality of care they receive.
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Affiliation(s)
- A I d'Young
- National Clinical Lead Haemophilia Physiotherapy, Auckland District Health Board, Auckland, New Zealand
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22
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Fayez R, AlMuntashery A, Bodie G, Almamar A, Gill R, Raîche I, Mueller C, AlMuntashery A, Fayez R, AlMuntashery A, Moustarah F, Khokhotva M, Anvari M, Kwong J, Elkassem S, Bonrath E, Zevin B, Sockalingam S, Smith C, Smith C, Whitlock K, Gill R, Suri M, Palter V, Wakeam E, Khan R, Martelli V, Malik A, Young P, Daigle C, McCreery G, Seth R, Paskar D, Sudarshan M, Richardson D, Haggar F, Davis V, Rivard J, Agzarian J, Racz J, Winocour J, Zilbert N, Decker C, Neumann K, Gosney J, Wissanji H, Chadi S, Alhabboubi M, Partridge E, Alhabboubi M, Olszewski M, Chan R, Nadler A, Hameed U, Brotherhood H, Menezes A, MacDonald B, Rakovich G, Hilsden R, Merani S, Davis P, Davis P, Cools-Lartigue J, Ojah J, Julien F, Carter D, Pitt D, Banks B, Rudovics A, Ravichandran P, Anantha R, Aad I, Kholdebarin R, Aird L, Wong S, Payne J, Hallet J, Farries L, Raiche I, Botkin C, Morency D, Berger-Richardson D, Isa A, Dupuis I, Schweigert M, Koubi S, Ernjakovic M, Grant K, Cools-Lartigue J, Carrott P, Stafford T, Malthaner R, Sudarshan M, Hanna W, Lee L, Markar S, Razzak R, Bharadwaj S, Ashrafi A, Ouellette D, Fergusson D, Forster A, Boushey R, Porter G, Johnson P, Gomes T, Chan B, Auer R, Moloo H, Mamdani M, Markar S, Al-Omran M, Al-Obaid O, Boushey R, Lim DR, Min BS, Baik SH, Gordon P, Kim NK, Lo A, Pinsk I, Bottoni D, Brown C, Raval M, Cheng H, Wong C, Johnston N, Farrokhyar F, Stephen W, Kelly S, Lindsay L, Forbes S, Knickle C, Bouchard A, Parry N, Leslie K, Ott M, Coughlin S, Gazala S, Gazala S, Donahoe L, Walker K, Li C, Alnasser S, Schweigert M, Schweigert M, Zhuruk A, Hanouf A, Vanounou T, Karanicolas P, Aubin JM, Yeung J, Dumitra S, Simoneau E, Vanounou T, Howe B, Hawel J, Jang JH, Bertens K, Rekman J, Wei A, Dumitra S, Koubi S, Ouellet JF, Wei A, Covelli A, Maniar R, Sun S, Davis V, Brackstone M, Boissonneault R, Kim S, Baliski C, Gazala S, Hameed U, Sudarshan M, Arnaout A, Wedman D, Nostedt M, Hebbard P, Shetty S, Dixon M, Wei A, Dixon M, Kazazian K, Lemke M, Wells B, Musselman R, Zih FSW, Menezes A, Nassif M, Leon-Carlyle M, Wei A, Krotneva S, Bradley N, Trabulsi N, Trabulsi N, Chin-Lenn L, Cheng H, Petrucci A, Sandhu L, Neville A, Lee L, Li C, Yang I, Prabhu KL, Melich G, Knowles S, Richardson D, Borowiec A, Hallet J, Boissonneault R, Kolozsvari N, Hallet J, Tuttle P, VanHouwelingen L, Haggar F, Boulanger-Gobeil C, Chan B, Chan B, Richardson D, Musselman R, Melich G, Phang P, Goldstein L, Wen C, Lebrun A, Chadi S, Roy M, Villeneuve S, AlMuntashery A, Demyttenaere S, Christou N, Court O, Fayez R, Demyttenaere S, Christou N, Court O, Bonrath E, Hagen J, Okrainec A, Sullivan P, Grantcharov T, Sharma A, Karmali S, Birch D, Majumdar S, Wang X, Tuepah R, Klarenbach S, Birch D, Karmali S, Sharma A, Padwal R, Smith C, Haggar F, Moloo H, Poulin E, Martel G, Yelle JD, Mamazza J, Jackson T, Penner T, Pitzul K, Urbach D, Okrainec A, Villeneuve S, Roy M, Fayez R, Demyttenaere S, Christou N, Court O, Roy M, Villeneuve S, AlMuntashery A, Demyttenaere S, Christou N, Court O, Fayez R, Demyttenaere S, Court O, Christou N, Biertho L, Hould FS, Lebel S, Lescelleur O, Marceau S, Marceau P, Biron S, Grantcharov T, Sharma A, Yusuf S, Okrainec A, Pitzul K, Urbach D, Jackson T, Lindsay D, Sullivan P, Smith L, Zevin B, Dedy N, Grantcharov T, Bonrath E, Aggarwal R, Grantcharov T, Cassin S, Crawford S, Pitzul K, Khan A, Hawa R, Jackson T, Okrainec A, Brar B, Mamazza J, Raîche I, Yelle JD, Haggar F, Moloo H, Brar B, Haggar F, Dent R, Mamazza J, Raîche I, Moloo H, Gill R, Ali T, Shi X, Birch D, Karmali S, Whitlock K, Shi X, Sarkhosh K, Birch D, Karmali S, Turner J, Nation P, Wizzard P, Brubaker P, Gisalet D, Wales P, Grantcharov T, Tien H, Spencer F, Brenneman F, Kowal J, Wiseman S, Fraser S, Vedel I, Deban M, Holcroft C, Monette M, Monette J, Bergman S, Bell C, Stukel T, Urbach D, Mueller T, Lucykx V, Lukowski C, Compston C, Churchill T, Khadaroo R, Grantcharov T, Vogt K, Dubois L, Gray D, Ananth A, Tai LH, Lam T, Falls T, Souza C, Bell J, Auer R, Crawford S, Parry N, Leslie K, Alhabboubi M, St-Louis E, Deckelbaum D, Razek T, Feldman L, Khwaja K, Porter G, Johnson P, Boushey R, Moloo H, Raiche I, Mamazza J, Schiller D, Eurich D, Sawyer M, Vergis A, Unger B, Hardy K, Andrew C, Gillman L, Park J, Prodger J, Kelly W, Kelly S, Prodger D, Ewara E, Martin J, Sarma S, Chu M, Schlachta C, Zaric G, Al-Ali K, Briggs K, George R, Murnaghan M, Leung A, Regehr G, Moulton CA, Mahmud S, Metcalfe J, McKay A, Park J, Hochman D, Burkle F, Redmond A, McQueen K, Desrosiers E, Gilbert A, Leslie K, Ott M, Sudarshan M, Jessula S, Alburakan A, Deckelbaum D, Razek T, Iqbal S, Khwaja K, Aikins C, Sudarshan M, Deckelbaum D, Iqbal S, Khwaja K, Razek T, Roberts N, Moulton CA, Murnaghan M, Cil T, Marshall J, Pederson K, Erichsen S, White J, Aarts MA, Okrainec A, Victor J, Pearsall E, McLeod R, Jackson T, Okrainec A, Penner T, Urbach D, Karimuddin A, Hall C, Bawan S, Malik S, Hayashi A, Gill R, McAlister C, Zhang N, DesRosiers E, Mills A, Crozier M, Lee L, Maxwell J, Partridge E, Chad S, Steigerwald S, Mapiour D, Roberts D, MacPherson C, Donahoe L, Mercer D, Hopman W, Latulippe JF, Knowles S, Moffat B, Parry N, Leslie K, Switzer N, Khadaroo R, Tul Y, Widder S, Molinari M, Levy A, Johnson P, Bailey J, Molinari M, Hayden J, Johnson P, Benlolo S, Marcus V, Ferri L, Finley R, Anderson D, Gagné JP, Chan S, Wong S, Li J, Michael A, Choi D, Liu E, Hoogenes J, Dath D, Aubin JM, Mew D, McConnell Y, Classen D, Kanthan S, Croome K, Kovacs M, Lazo-Langner A, Hernandez-Alejandro R, Vogt K, Crawford S, Parry N, Leslie K, Khoshgoo N, Iwasiow B, Keijzer R, Brown C, Isa D, Pace D, Widder S, Tul Y, Primrose M, Hudson D, Khadaroo R, Lauzier F, Mailloux O, Trottier V, ARchambault P, Zarychanski R, Turgeon A, Mailloux O, Hardy P, Muirhead R, Masters J, Haggar F, Poulin HME, Martel G, Mamazza J, Milbrandt C, Keijzer R, Sideris L, Grenier-Vallée P, Latulippe JF, Dubé P, Kurashima Y, Kaneva P, Feldman L, Fried G, Vassiliou M, Kwan AL, Fraser S, Solymosi N, Rauh N, Dubecz A, Renz M, Ofner D, Stein H, Borgaonkar M, Crystal P, Easson A, Escallon J, Reedijk M, Cil T, Leong W, McCready D, Clifton J, Mayo J, Finley R, Noreau-Nguyen M, Mulder D, Ferri L, Markar S, Hong J, Low D, Maslow A, Davignon K, Ng T, Tan L, Aruranian J, Kosa S, Ferri L, Murphy G, Allison F, Moshonov H, Darling G, Waddell T, De Perrot M, Cypel M, Yasufuku K, Keshavjee S, Paul N, Pierre A, Darling G, Pedneault C, Marcus V, Mulder D, Ferri L, Low D, Roa W, Löbenberg R, McEwan S, Bédard E, Louie B, Farivar A, McHugh S, Aye R, Tan-Tam C, De Vera M, Bond R, Ong S, Johal B, Schellenberg D, Po M, Nissar S, Lund C, Ahmadi S, Wakil N, Rakovich G, Beauchamps G, Preston S, Baker C, Low D, Campbell G, Malthaner R, Bethune D, Henteleff H, Johnston M, Buduhan G, Coughlin HE, Roth L, Bhandari M, Malthaner R, Johnson J, Kutsogiannis J, Bédard E, Rammohan K, Stewart K, Bédard E, Buduhan G, Gruchy J, Xu Z, Buduhan G, Ferri L, Mulder D, Ncuti A, Neville A, Kaneva P, Watson D, Vassiliou M, Carli F, Feldman L, Av R, Mayrand S, Franco E, Ferri L, Dubecz A, Renz M, Stadlhuber R, Ofner D, Stein H, Renz M, Dubecz A, Solymosi N, Thumfart L, Ofner D, Stein H, Croome K, Leeper R, Hernandez R, Livingstone S, Sapp J, Woodhall D, Alwayn I, Bergman S, Lam-McCulloch J, Balaa F, Jayaraman S, Quan D, Wei A, Guyatt G, Rekman J, Fairfull-Smith R, Mimeault R, Balaa F, Martel G, Boehnert M, Bazerbachi F, Knaak J, Selzner N, McGilvray I, Rotstein O, Adeyi O, Levy G, Keshavjee S, Grant D, Selzner M, Khalil JA, Jamal M, Chaudhury P, Zogopoulos G, Petrakos P, Tchervenkov J, Barkun J, Jamal M, Hassanain M, Chaudhury P, Wong S, Salman A, Tran T, Metrakos P, Groeschl R, Geller D, Marsh J, Gamblin T, Croome K, Croome K, Quan D, Hernandez R, Kim P, Greig PD, Gallinger S, Moulton CA, Wei A, Fischer S, Cleary S, Vogt K, Hernandez-Alejandro R, Gray D, Aubin J, Fairfull-Smith J, Mimeault R, Balaa F, Martel G, Devitt K, Ramjaun A, Gallingher S, Alabbad S, Constantinos D, Hassanein M, Barkun J, Metrakos P, Paraskevas S, Chaudhury P, Tchervenkov J, Borgaonkar M, Tanyingoh D, Dixon E, Kaplan G, Myers R, Howard T, Sutherland F, Zyromski N, Ball C, Coburn N, Moulton CA, Cleary S, Law C, Greig P, Steven G, Baxter N, Fitch M, Wright F, Hochman D, Wirtzfeld D, McKay A, Yaffe C, Yip B, Silverman R, Park J, McConnell Y, Temple W, Mack L, Schiller D, Bathe O, Sawyer M, Scott L, Vandenberg T, Perera F, Potvin K, Chambers A, Loungnarath R, DeBroux É, Lavertu S, Donath D, Ayoub JP, Tehfé M, Richard C, Cornacchi S, Heller B, Farrokhyar F, Babra M, Lovrics P, Liberto C, Ghosh S, McLean R, Schiller D, Jackson T, Okrainec A, Penner T, Urbach D, Dumitra S, Duplisea J, Wexler S, Seely J, Smylie J, Knight K, Robertson S, Watters J, Zhang T, Arneout A, Hochman D, Wirtzfeld D, McKay A, Yip B, Yaffe C, Silverman R, Park J, Baxter N, Yun L, Rakovitch E, Wright F, Warner E, McCready D, Hodgson N, Quan M, Natarajan B, Govindarajan V, Thomas P, Loggie B, Brar S, Mahar A, Law C, Coburn N, Devitt K, Wiebe M, Bathe O, McLeod R, Baxter N, Gagliardi A, Kennedy E, Urbach D, Brar S, Mahar A, Law C, Coburn N, Zih F, Rosario C, Dennis J, Gingras AC, Swallow C, Ko YJ, Rowsell C, Law C, Saskin R, Quan ML, Xie M, McLaughlin K, Marginean C, Moyana T, Moloo H, Boushey R, Auer R, Razik R, Haase E, Mathieson A, Smith A, Swallow C, Barnes A, Scheer A, Moloo H, Boushey R, Sabri E, Auer R, Reidel K, Trabulsi N, Meterissian S, Tamblyn R, Mayo N, Meguerditchian A, Brown J, Hamm J, Phang P, Raval M, Brown C, Devitt K, Wiebe M, Bathe O, McLeod R, Taylor B, Urbach D, Reidel K, Mayo N, Tamblyn R, Meguerditchian A, Hamm J, Wiseman S, Patakfalvi L, Nassif M, Turcotte R, Nichols A, Meguerditchian A, Riedel K, Winslade N, Grégoire JP, Meterissian S, Abrahamovicz M, Megueerditchian A, Pasieka J, McMillan C, Lipa J, Snell L, Sudarshan M, Dumitra S, Duplisea J, Wexler S, Meterissian S, Tomlinson G, Kennedy E, Wei A, Baxter N, Urbach D, Liberman A, Charlebois P, Stein B, Ncuti A, Vassiliou M, Fried G, Feldman L, Capretti G, Power A, Liberman A, Charlebois P, Stein B, Kaneva P, Carli F, Fried G, Feldman L, Carli F, Charlebois P, Stein B, Liberman A, Kaneva P, Augustin B, Gamsa A, Kim DJ, Vassiliou M, Feldman L, Boushey R, Moloo H, Vu L, Chan S, Phang P, Gown A, Jones S, Wiseman S, Jeong DH, Hur H, Baik SH, Kim NK, Faria J, Min BS, Lumb K, Colquhoun P, Porter G, Johnson P, Baxter N, Schmocker S, Huang H, Victor J, Krzyzanowska MK, Brierley J, McLeod R, Kennedy E, Milot H, Desrosiers E, Lebrun A, Drolet S, Bouchard A, Grégoire R, Vuong T, Loungnarath R, DeBroux E, Liberman A, Charlebois P, Stein B, Richard C, Capretti G, Kaneva P, Neville A, Carli F, Liberman S, Charlebois P, Stein B, Vassiliou M, Fried G, Feldman L, Milot H, Drolet S, Bouchard A, Grégoire R, Powell R, Fowler A, Mathieson A, Martin K, Vogt K, Ott M, Pereira G, Einarsdottir K, Moloo H, Boushey R, Mamazza J, Bouchard A, Gagné J, Grégoire R, Thibault C, Bouchard P, Gomes T, Musselman R, Auer R, Moloo H, Mamdani M, Al-Omran M, Boushey R, AlObeed O, Armstrong J. Canadian Surgery Forum1 Is laparoscopic sleeve gastrectomy a reasonable stand-alone procedure for super morbidly obese patients?2 Postoperative monitoring requirements of patients with obstructive sleep apnea undergoing bariatric surgery3 Role of relaparoscopy in the diagnosis and treatment of bariatric complications in the early postoperative period4 Changes of active and total ghrelin, GLP-1 and PYY following restrictive bariatric surgery and their impact on satiety: comparison of sleeve gastrectomy and adjustable gastric banding5 Prioritization and willingness to pay for bariatric surgery: the patient perspective6 Ventral hernia at the time of laparoscopic gastric bypass surgery: Should it be repaired?7 Linear stapled gastrojejunostomy with transverse handsewn enterotomy closure significantly reduces strictures for laparoscopic Roux-en-Y bypass8 Laparoscopic biliopancreatic diversion with duodenal switch as second stage for super super morbidly obese patients. Do all patients benefit?9 Sleeve gastrectomy in the super super morbidly obese (BMI > 60 kg/m2): a Canadian experience10 Laparoscopic gastric bypass for the treatment of refractory idiopathic gastroparesis: a report of 2 cases11 Duodeno-ileal switch as a primary bariatric and metabolic surgical option for the severely obese patient with comorbidities: review of a single-institution case series of duodeno-ileal intestinal bypass12 Management of large paraesophageal hernias in morbidly obese patients with laparoscopic sleeve gastrectomy: a case series13 Early results of the Ontario bariatric surgical program: using the bariatric registry14 Improving access to bariatric surgical care: Is universal health care the answer?15 Early and liberal postoperative exploration can reduce morbidity and mortality in patients undergoing bariatric surgery16 Withdrawn17 Identification and assessment of technical errors in laparoscopic Roux-en-Y gastric bypass18 A valid and reliable tool for assessment of surgical skill in laparoscopic Roux-en-Y gastric bypass19 Psychiatric predictors of presurgery drop-out following suitability assessment for bariatric surgery20 Predictors of outcomes following Roux-en-Y gastric bypass surgery at The Ottawa Hospital21 Prophylactic management of cholelithiasis in bariatric patients: Is routine cholecystectomy warranted?22 Early outcomes of Roux-en-Y gastric bypass in a publicly funded obesity program23 Similar incidence of gastrojejunal anastomotic stricture formation with hand-sewn and 21 mm circular stapler techniques during Roux-en-Y gastric bypass24 (CAGS Basic Science Award) Exogenous glucagon-like peptide-1 improves clinical, morphological and histological outcomes of intestinal adaptation in a distal-intestinal resection piglet model of short bowel syndrome25 (CAGS Clinical Research Award) Development and validation of a comprehensive curriculum to teach an advanced minimally invasive procedure: a randomized controlled trial26 Negative-pressure wound therapy (iVAC) on closed, high-risk incisions following abdominal wall reconstruction27 The impact of seed granting on research in the University of British Columbia Department of Surgery28 Quality of surgical care is inadequate for elderly patients29 Recurrence of inguinal hernia in general and hernia specialty hospitals in Ontario, Canada30 Oncostatin M receptor deficiency results in increased mortality in an intestinal ischemia reperfusion model in mice31 Laparoscopic repair of large paraesophageal hernias with anterior gastropexy: a multicentre trial32 Response to preoperative medical therapy predicts success of laparoscopic splenectomy for immune thrombocytopenic purpura33 Perioperative sepsis, but not hemorrhagic shock, promotes the development of cancer metastases in a murine model34 Measuring the impact of implementing an acute care surgery service on the management of acute biliary disease35 Patient flow and efficiency in an acute care surgery service36 The relationship between treatment factors and postoperative complications after radical surgery for rectal cancer37 Risk of ventral hernia after laparoscopic colon surgery38 Urinary metabolomics as a tool for early detection of Barrett’s and esophageal cancer39 Construct validity of individual and summary performance metrics associated with a computer-based laparo-scopic simulator40 Impact of a city-wide health system reorganization on emergency department visits in hospitals in surrounding communities41 Transcatheter aortic valve implantation for the nonoperative management of aortic stenosis: a cost-effectiveness analysis42 Breast cancer: racial differences in age of onset. A potential confounder in Canadian screening recommendations43 Risk taking in surgery: in and out of the comfort zone44 A tumour board in the office: Track those cancer patients!45 Increased patient BMI is not associated with advanced colon cancer stage or grade on presentation: a retrospective chart review46 Consensus statements regarding the multidisciplinary care of limb amputation patients in disasters or humanitarian emergencies. Report of the 2011 Humanitarian Action Summit Surgical Working Group on amputations following disasters or conflict47 Learning the CanMEDS role of professional: a pilot project of supervised discussion groups addressing the hidden curriculum48 Assessing the changing scope of training in Canadian general surgery programs: expected versus actual experience49 Predicting need for surgical management for massive gastrointestinal hemorrhage50 International health care experience: using CanMEDS to evaluate learning outcomes following a surgical mission in Mampong, Ghana51 The open abdomen: risk factors for mortality and rates of closure52 How surgeons think: an exploration of mental practice in surgical preparation53 The surgery wiki: a novel method for delivery of under-graduate surgical education54 Understanding surgical residents’ postoperative practices before implementing an enhanced recovery after surgery (ERAS) guideline at the University of Toronto55 From laparoscopic transabdominal to posterior retroperitoneal adrenalectomy: a paradigm shift in operative approach56 A retrospective audit of outcomes in patients over the age of 80 undergoing acute care abdominal surgery57 Canadian general surgery residents’ perspectives on work-hour regulations58 Timing of surgical intervention and its outcomes in acute appendicitis59 Preparing surgical trainees to deal with adverse events. An outline of learning issues60 Acute care surgical service: surgeon agreement at the time of handover61 Predicting discharge of elderly patients to prehospitalization residence following emergency general surgery62 Morbidity and mortality after emergency abdominal surgery in octo- and nonagenarians63 The impact of acute abdominal illness and urgent admission to hospital on the living situation of elderly patients64 A comparison of laparoscopic versus open subtotal gastrectomy for antral gastric adenocarcinoma: a North American perspective65 Minimally invasive excision of ectopic mediastinal parathyroid adenomas66 Perioperative outcomes of laparoscopic hernia repair in a tertiary care centre: a single institution’s experience67 Evaluation of a student-run, practical and didactic curriculum for preclerkship medical students68 Joseph Lister: Father of Modern Surgery69 Comparisons of melanoma sentinel lymph node biopsy prediction nomograms in a cohort of Canadian patients70 Local experience with myocutaneous flaps after extensive pelvic surgery71 The treatment of noncirrhotic splanchnic vein thrombosis: Is anticoagulation enough?72 Implementation of an acute care surgery service does not affect wait-times for elective cancer surgeries: an institutional experience73 Use of human collagen mesh for closure of a large abdominal wall defect, after colon cancer surgery, a case report74 The role of miR-200b in pulmonary hypoplasia associated with congenital diaphragmatic hernia75 Systematic review and meta-analysis of electrocautery versus scalpel for incising epidermis and dermis76 Accuracy of sentinel lymph node biopsy for early breast cancer in the community setting in St. John’s, New-foundland: results of a retrospective review77 Acute surgical outcomes in the 80 plus population78 The liberal use of platelets transfusions in the acute phase of trauma resuscitation: a systematic review79 Implementation of an acute care surgical on call program in a Canadian community hospital80 Short-term outcomes following paraesophageal hernia repair in the elderly patient81 First experience with single incision surgery: feasibility in the pediatric population and cost evaluation82 The impact of the establishment of an acute care surgery unit on the outcomes of appendectomies and cholecystectomies83 Description and preliminary evaluation of a low-cost simulator for training and evaluation of flexible endoscopic skills84 Tumour lysis syndrome in metastatic colon cancer: a case report85 Acute care surgery service model implementation study at a single institution86 Colonic disasters approached by emergent subtotal and total colectomy: lessons learned from 120 consecutive cases87 Acellular collagen matrix stent to protect bowel anastomoses88 Lessons we learned from preoperative MRI-guided wire localization of breast lesions: the University Health Network (UHN) experience89 Interim cost comparison for the use of platinum micro-coils in the operative localization of small peripheral lung nodules90 Routine barium esophagram has minimal impact on the postoperative management of patients undergoing esophagectomy for esophageal cancer91 Iron deficiency anemia is a common presenting issue with giant paraesophageal hernia and resolves following repair92 A randomized comparison of different ventilation strategies during thoracotomy and lung resection93 The Canadian Lung Volume Reduction Surgery study: an 8-year follow-up94 A comparison of minimally invasive versus open Ivor-Lewis esophagectomy95 A new paradigm in the follow-up after curative resection for lung cancer: minimal-dose CT scan allows for early detection of asymptomatic cancer activity96 Predictors of lymph node metastasis in early esophageal adenocarcinoma: Is endoscopic resection worth the risk?97 How well can thoracic surgery residents operate? Comparing resident and program director opinions98 The impact of extremes of age on short- and long-term outcomes following surgical resection of esophageal malignancy99 Epidermal growth factor receptor targeted gold nanoparticles for the enhanced radiation treatment of non–small cell lung cancer100 Laparoscopic Heller myotomy results in excellent outcomes in all subtypes of achalasia as defined by the Chicago classification101 Neoadjuvant chemoradiation versus surgery in managing esophageal cancer102 Quality of life postesophagectomy for cancer!103 The implementation, evolution and translocation of standardized clinical pathways can improve perioperative outcomes following surgical treatment of esophageal cancer104 A tissue-mimicking phantom for applications in thoracic surgical simulation105 Sublobar resection compared with lobectomy for early stage non–small cell lung cancer: a single institution study106 Not all reviews are equal: the quality of systematic reviews and meta-analyses in thoracic surgery107 Do postoperative complications affect health-related quality of life after video-assisted thoracoscopic lobectomy for patients with lung cancer? A cohort study108 Thoracoscopic plication for palliation of dyspnea secondary to unilateral diaphragmatic paralysis: A worthwhile venture?109 Thoracic surgery experience in Canadian general surgery residency programs110 Perioperative morbidity and pathologic response rates following neoadjuvant chemotherapy and chemoradiation for locally advanced esophageal carcinoma111 An enhanced recovery pathway reduces length of stay after esophagectomy112 Predictors of dysplastic and neoplastic progression of Barrett’s esophagus113 Recurrent esophageal cancer complicated by tracheoesophageal fistula: management by means of palliative airway stenting114 Pancreaticopleural fistula-induced empyema thoracis: principles and results of surgical management115 Prognostic factors of early postoperative mortality following right extended hepatectomy116 Optimizing steatotic livers for transplantation using a cell-penetrating peptide CPP-fused heme oxygenase117 Video outlining the technical steps for a robot-assisted laparoscopic pancreaticoduodenectomy118 Establishment of a collaborative group to conduct innovative clinical trials in Canada119 Hepatic resection for metastatic malignant melanoma: a systematic review and meta-analysis120 Acellular normothermic ex vivo liver perfusion for donor liver preservation121 Pancreatic cancer and predictors of survival: comparing the CA 19–9/bilirubin ratio with the McGill Brisbane Scoring System122 Staged liver resections for bilobar hepatic colorectal metastases: a single centre experience123 Economic model of observation versus immediate resection of hepatic adenomas124 Resection of colorectal liver metastasis in the elderly125 Acceptable long-term survival in patients undergoing liver resection for metastases from noncolorectal, non-neuroendocrine, nonsarcoma malignancies126 Patient and clinicopathological features and prognosis of CK19+ hepatocellular carcinomas: a case–control study127 The management of blunt hepatic trauma in the age of angioembolization: a single centre experience128 Liver resections for noncolorectal and non-neuroendocrine metastases: an evaluation of oncologic outcomes129 Developing an evidence-based clinical pathway for patients undergoing pancreaticoduodenectomy130 Hepatitis C infection and hepatocellular carcinoma in liver transplant: a 20 year experience131 The effect of medication on the risk of post-ERCP pancreatitis132 Temporal trends in the use of diagnostic imaging for patients with hepato-pancreato-biliary (HPB) conditions: How much ionizing radiation are we really using?196 A phase II study of aggressive metastasectomy for intra-and extrahepatic metastases from colorectal cancer133 Why do women choose mastectomy for breast cancer treatment? A conceptual framework for understanding surgical decision-making in early-stage breast cancer134 Synoptic operative reporting: documentation of quality of care data for rectal cancer surgery135 Learning curve analysis for cytoreductive surgery: a useful application of the cumulative sum (CUSUM) method136 Pancreatic cancer is strongly associated with a unique urinary metabolomic signature137 Concurrent neoadjuvant chemo/radiation in locally advanced breast cancer138 Impact of positron emission tomography on clinical staging of newly diagnosed rectal cancer: a specialized single centre retrospective study139 An evaluation of intraoperative Faxitron microradiography versus conventional specimen radiography for the excision of nonpalpable breast lesions140 Comparison of breast cancer treatment wait-times in the Southern Interior of British Columbia in 2006 and 2010141 Factors affecting lymph nodes harvest in colorectal carcinoma142 Laparoscopic adrenalectomy for metastases143 You have a message! Social networking as a motivator for fundamentals of laparoscopic surgery (FLS) training144 The evaluation and validation of a rapid diagnostic and support clinic for women assessment for breast cancer145 Oncoplastic breast surgery: oncologic benefits and limitations146 A qualitative study on rectal cancer patients’ preferences for location of surgical care147 The effect of surgery on local recurrence in young women with breast cancer148 Elevated IL-6 and IL-8 levels in tumour microenvironment is not associated with increased serum levels in humans with Pseudomyxoma peritonei and peritoneal mesothelioma149 Conversion from laparoscopic to open approach during gastrectomy: a population-based analysis150 A scoping review of surgical process improvement tools (SPITs) in cancer surgery151 Splenectomy during gastric cancer surgery: a population-based study152 Defining the polo-like kinase 4 (Plk4) interactome in cancer cell protrusions153 Neoadjuvant imatinib mesylate for locally advanced gastrointestinal stromal tumours154 Implementing results from ACOSOG Z0011: Practice-changing or practice-affirming?155 Should lymph node retrieval be a surgical quality indicator in colon cancer?156 Long-term outcomes following resection of retroperitoneal recurrence of colorectal cancer157 Clinical research in surgical oncology: an analysis of clinicaltrials.gov158 Radiation therapy after breast conserving surgery: When are we missing the mark?159 The accuracy of endorectal ultrasound in staging rectal lesions in patients undergoing transanal endoscopic microsurgery160 Quality improvement in gastrointestinal cancer surgery: expert panel recommendations for priority research areas161 Factors influencing the quality of local management of ductal carcinoma in situ: a cohort study162 Papillary thyroid microcarcinoma: Does size matter?163 Hyperthermic isolated limb perfusion for extremity soft tissue sarcomas: systematic review of clinical efficacy and quality assessment of reported trials164 Adherence to antiestrogen therapy in seniors with breast cancer: How well are we doing?165 Parathyroid carcinoma: Challenging the surgical dogma?166 A qualitative assessment of the journey to delayed breast reconstruction195 The role of yoga therapy in breast cancer patients167 Outcomes reported in comparative studies of surgical interventions168 Enhanced recovery pathways decrease length of stay following colorectal surgery, but how quickly do patients actually recover?169 The impact of complications on bed utilization after elective colorectal resection170 Impact of trimodal prehabilitation program on functional recovery after colorectal cancer surgery: a pilot study171 Complex fistula-in-ano: Should the plug be abandoned in favour of the LIFT or BioLIFT?172 Prognostic utility of cyclooxygenase-2 expression by colon and rectal cancer173 Laparoscopic right hemicolectomy with complete mesocolic excision provides acceptable perioperative outcomes but is complex and time-consuming: analysis of learning curves for a novice minimally invasive surgeon174 Intraoperative quality assessment following double stapled circular colorectal anastomosis175 Improving patient outcomes through quality assessment of rectal cancer care176 Are physicians willing to accept a decrease in treatment effectiveness for improved functional outcomes for low rectal cancer?177 Turnbull-Cutait delayed coloanal anastomosis for the treatment of distal rectal cancer: a prospective cohort study178 Preoperative high-dose rate brachytherapy in preparation for sphincter preservation surgery for patients with advanced cancer of the lower rectum179 Impact of an enhanced recovery program on short-term outcomes after scheduled laparoscopic colon resection180 The clinical results of the Turnbull-Cutait delayed coloanal anastomosis: a systematic review181 Is a vertical rectus abdominus flap (VRAM) necessary? An analysis of perineal wound complications182 Fistula plug versus endorectal anal advancement flap for the treatment of high transsphincteric cryptoglandular anal fistulas: a systematic review and meta-analysis183 Maternal and neonatal outcomes following colorectal cancer surgery184 Transanal drainage to treat anastomotic leaks after low anterior resection for rectal cancer: a valuable option185 Trends in colon cancer in Ontario: 2002–2009186 Validation of electronically derived short-term outcomes in colorectal surgery187 A population-based assessment of transanal and endoscopic resection for adenocarcinoma of the rectum188 Laparoscopic colorectal surgery in the emergency setting: trends in the province of Ontario from 2002 to 2009189 Prevention of perineal hernia after laparoscopic and robotic abdominoperineal resection: review with case series of internal hernia through pelvic mesh which was placed in attempt to prevent perineal hernia190 Effect of rectal cancer treatments on quality of life191 The use of antibacterial sutures as an adjunctive preventative strategy for surgical site infection in Canada: an economic analysis192 Impact of socioeconomic status on colorectal cancer screening and stage at presentation: preliminary results of a population-based study from an urban Canadian centre193 Initial perioperative results of the first transanal endoscopic microsurgery (TEM) program in the province of Quebec194 Use of negative pressure wound therapy decreases perineal wound infections following abdominal perineal resection. Can J Surg 2012; 55:S63-S135. [DOI: 10.1503/cjs.016712] [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: 11/01/2022] Open
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Martikainen P, Ho J, Preston S, Elo I. O5-2.2 The changing contribution of smoking to educational differences in mortality: estimates for finnish men and women from 1971 to 2005. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976b.44] [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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Sawant A, Hong C, Preston S, Joshi S. 1204 poster REAL-TIME MR IMAGING STRATEGIES FOR TRACKING MOVING AND DEFORMING LUNG TUMORS. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71326-3] [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: 11/29/2022]
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Jennings NA, Griffin SM, Lamb PJ, Preston S, Richardson D, Karat D, Hayes N. Prospective study of bone scintigraphy as a staging investigation for oesophageal carcinoma. Br J Surg 2008; 95:840-4. [PMID: 18551472 DOI: 10.1002/bjs.6175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND About 10 per cent of patients undergoing radical oesophagectomy for transmural (T3) carcinoma with lymph node involvement (N1) develop symptomatic bone metastases within 12 months of surgery. The aim of this study was to evaluate the introduction of targeted preoperative bone scintigraphy. METHODS Of 790 patients with oesophageal carcinoma staged between December 2000 and December 2004, 189 were eligible for potentially curative treatment. (99m)Tc-labelled hydroxymethylene diphosphonate bone scintigraphy was performed in those with stage T3 N1 disease (identified by computed tomography and endoscopic ultrasonography) who were suitable for radical treatment. RESULTS A total of 115 patients had bone scintigraphy. The histological diagnosis was adenocarcinoma in 82 patients and squamous cell carcinoma in 33. Bone scintigraphy was normal or showed degenerative changes in 93 patients, and abnormal requiring further investigation in 22. Plain radiography, magnetic resonance imaging and biopsy confirmed the presence of bone metastases in 11 patients (9.6 per cent). CONCLUSION Bone is frequently the first site of identifiable distant metastatic spread, and bone scintigraphy is recommended to exclude metastatic disease before radical treatment of advanced oesophageal carcinoma.
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Affiliation(s)
- N A Jennings
- Northern Oesophago-Gastric Cancer Unit, Royal Victoria Infirmary, Newcastle upon Tyne, UK
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Williman J, Young S, Buchan G, Slobbe L, Wilson M, Pang P, Austyn J, Preston S, Baird M. DNA fusion vaccines incorporating IL-23 or RANTES for use in immunization against influenza. Vaccine 2008; 26:5153-8. [PMID: 18456374 DOI: 10.1016/j.vaccine.2008.03.084] [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: 01/19/2023]
Abstract
The incorporation of RANTES or IL-23 into DNA vaccines may improve their immunogenicity by the recruitment and activation of dendritic cells. This may also select for a TH1 response counteracting the TH2 response which can predominate when a DNA vaccine is delivered by gene gun. We have immunized mice with various DNA constructs encoding APR/8/34 influenza virus hemagglutinin (HA), either fused to or separate from, IL-23 or RANTES using a gene gun. Those immunized with IL-23/HA fusion constructs and challenged with influenza 27 weeks post-vaccination, tended to have cleared more virus than those vaccinated with HA DNA. Mice immunized with the RANTES/HA fusion construct produced a mixed TH1/TH2 response whereas in HA-vaccinated mice, a TH2 response predominated. Immunization with a plasmid in which HA and RANTES were under the control of separate promoters, failed to generate a mixed TH1/TH2 response suggesting that enhanced antigen uptake via RANTES receptors may contribute to the mixed immune response generated to the fusion construct. Overall these findings provide further evidence that Type 1 cytokines or chemokines, fused to antigen in a DNA vaccine, can influence the nature and the longevity of the immune response and ultimately, its protective capacity.
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Affiliation(s)
- J Williman
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
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Zigmond E, Preston S, Pappo O, Lalazar G, Margalit M, Shalev Z, Zolotarov L, Friedman D, Alper R, Ilan Y. Beta-glucosylceramide: a novel method for enhancement of natural killer T lymphoycte plasticity in murine models of immune-mediated disorders. Gut 2007; 56:82-9. [PMID: 17172586 PMCID: PMC1856679 DOI: 10.1136/gut.2006.095497] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND beta-Glucosylceramide, a naturally occurring glycolipid, exerts modulatory effects on natural killer T (NKT) lymphocytes. AIM To determine whether beta-glucosylceramide can alter NKT function in opposite directions, colitis was induced by intracolonic installation of trinitrobenzenesulphonic acid, and hepatocellular carcinoma (HCC) was induced by transplantation of Hep3B cells. METHODS The immunological effect of beta-glucosylceramide was assessed by analysis of intrahepatic and intrasplenic lymphocyte populations, serum cytokines and STAT protein expression. RESULTS Administration of beta-glucosylceramide led to alleviation of colitis and to suppression of HCC, manifested by improved survival and decreased tumour volume. The beneficial effects were associated with an opposite immunological effect in the two models: the peripheral:intrahepatic CD4:CD8 lymphocyte ratio increased in the colitis model and decreased in the HCC group. The peripheral:intrahepatic NKT lymphocyte ratio decreased in beta-glucosylceramide-treated mice solely in the HCC model. The effect of beta-glucosylceramide was associated with decreased STAT1 and 4 expression, and with overexpression of STAT6, along with decreased interferon gamma levels in the colitis model, whereas an opposite effect was noted in the HCC model. CONCLUSIONS beta-glucosylceramide alleviates immunologically incongruous disorders and may be associated with "fine tuning" of immune responses, by changes in plasticity of NKT lymphocytes.
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Affiliation(s)
- E Zigmond
- Liver Unit, Department of Medicine, Hebrew University Hadassah Medical Center, PO Box 12000, Jerusalem, Israel IL-91120
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Eren E, Yates J, Cwynarski K, Preston S, Dong R, Germain C, Lechler R, Huby R, Ritter M, Lombardi G. Location of major histocompatibility complex class II molecules in rafts on dendritic cells enhances the efficiency of T-cell activation and proliferation. Scand J Immunol 2006; 63:7-16. [PMID: 16398696 DOI: 10.1111/j.1365-3083.2006.01700.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [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: 01/25/2023]
Abstract
The existence of major histocompatibility complex (MHC) class II molecules in lipid rafts has been described in dendritic cells (DC); however, the importance of rafts in T-cell activation has not been clarified. In this study, the distribution of the lipid raft components (CD59 and GM1 ganglioside) in human monocyte-derived DC was investigated. DC had an even distribution of these components at the cell surface. In addition, raft-associated GM1 ganglioside colocalized with cross-linked MHC class II. This implies coaggregation of raft components with these MHC molecules, which may be important in the interaction between T cells and antigen-presenting cells. In studies carried out to investigate the effect of the DC : T-cell interaction on raft distribution, we found a clustering of the lipid raft component CD59 on DC at the synaptic interface, with associated activation of the interacting T cell. In an antigen-specific response between DC and CD4+ T-cell clones, disruption of lipid rafts resulted in inhibition of both CD59 clustering and T-cell activation. This was most pronounced when limiting amounts of cognate peptide were used. Together, these data demonstrate the association of MHC class II with lipid rafts during DC : T-cell interaction and suggest an important role for DC lipid rafts in T-cell activation.
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Affiliation(s)
- E Eren
- Department of Immunology, Imperial College London, Hammersmith Campus, London, UK
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Hill N, Moor G, Cameron MM, Butlin A, Preston S, Williamson MS, Bass C. Single blind, randomised, comparative study of the Bug Buster kit and over the counter pediculicide treatments against head lice in the United Kingdom. BMJ 2005; 331:384-7. [PMID: 16085658 PMCID: PMC1184251 DOI: 10.1136/bmj.38537.468623.e0] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To compare the effectiveness of the Bug Buster kit with a single treatment of over the counter pediculicides for eliminating head lice. DESIGN Single blind, multicentre, randomised, comparative clinical study. SETTING Four counties in England and one county in Scotland. PARTICIPANTS 133 young people aged 2-15 years with head louse infestation: 56 were allocated to the Bug Buster kit and 70 to pediculicide treatment. INTERVENTIONS Home use of proprietary pediculicides (organophosphate or pyrethroid) or the Bug Buster kit. MAIN OUTCOME MEASURE Presence of head lice 2-4 days after end of treatment: day 5 for the pediculicides and day 15 for the Bug Buster kit. RESULTS The cure rate using the Bug Buster kit was significantly greater than that for the pediculicides (57% v 13%; relative risk 4.4, 95% confidence interval 2.3 to 8.5). Number needed to treat for the Bug Buster kit compared with the pediculicides was 2.26. CONCLUSION The Bug Buster kit was the most effective over the counter treatment for head louse infestation in the community when compared with pediculicides.
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Affiliation(s)
- N Hill
- Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT.
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Tandy S, Barbosa V, Tye A, Preston S, Paton G, Zhang H, McGrath S. Comparison of different microbial bioassays to assess metal-contaminated soils. Environ Toxicol Chem 2005; 24:530-536. [PMID: 15779751 DOI: 10.1897/04-197r.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
These experiments compared the sensitivity of four different types of bioassay over time after five metals were added to a wide range of soils at the maximum concentrations in the European Union Sewage Sludge Directive. Three were chronic assays (most probable number of Rhizobium leguminosarum, soil microbial C and Biolog substrate utilization). The fourth bioassay, an acute biosensor, employed a lux-marked luminescent bacterium (Escherichia coli) in the soil pore water. Five metals were added to 23 different soils as a mixture at Zn = 300, Cd = 3, Pb = 300, Cu = 135, and Ni = 75 mg/kg as nitrate salts and compared with unamended controls. Zinc and Cu were the metals most likely to be toxic at the concentrations used here. In the case of Rhizobium, the number of cells in soil was not affected after 11 d; however, by 818 d the numbers had decreased by four orders of magnitude with increasing concentrations of Zn and Cu in soil solution. Microbial biomass also was not affected after 11 d, but significantly decreased with increased Zn (p < 0.001) and Cu (p < 0.01) in soil solution after 818 d. Toxicity to the soil microbial biomass increased with time, whereas the toxicity to the biosensor remained the same. Biolog substrate utilization profiles were not responsive to the concentrations used here.
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Affiliation(s)
- Susan Tandy
- ETH Zürich, Institute for Terrestrial Ecology, Grabenstrasse 3, CH-8952 Schlieren, Switzerland
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Seward E, Greig E, Preston S, Harris RA, Borrill Z, Wardle TD, Burnham R, Driscoll P, Harrison BDW, Lowe DC, Pearson MG. A confidential study of deaths after emergency medical admission: issues relating to quality of care. Clin Med (Lond) 2003; 3:425-34. [PMID: 14601941 PMCID: PMC4953638 DOI: 10.7861/clinmedicine.3-5-425] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [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] [Indexed: 11/27/2022]
Abstract
In this retrospective pilot study we examine the feasibility of establishing a confidential enquiry into why some patients die after emergency admission to hospital. After excluding those who died in the first hour or who were admitted for palliative care, pairs of physicians were able to collect quantitative and qualitative data on 200 consecutive deaths. Both physicians reported shortfalls of care in 14 patients and one of the pair in 25 patients whose deaths would not have been the expected outcome. In 25, the shortfalls of care may have contributed to their deaths. Major problems were delays in seeing doctors, inaccurate diagnoses, delays in investigations and initiation of treatment. They occurred mostly in those admitted at night. It is possible that establishing the correct diagnosis and starting appropriate treatment may have been delayed in 64% of the 200 patients. The headline figures appear worse than some previous external assessment studies but this study did concentrate on those in whom problems were more likely. Nevertheless, the frequency is too high to be overlooked. In this feasibility study we have demonstrated that it is practicable for local staff to collect and assess data in hospitals and that the types of problems identified are relevant to anyone planning how to organise emergency care. A larger definitive study should be performed.
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Chandrashekar MV, Richardson DL, Preston S, Karat D, Griffin SM. Perforation of a nonobstructing gastro-oesophageal carcinoma by oblique-viewing endoscopic ultrasound videoscope: a need for a safe technique. Endoscopy 2002; 34:934. [PMID: 12430082 DOI: 10.1055/s-2002-35305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- M V Chandrashekar
- Northern Oesophago-Gastric Cancer Unit, Royal Victoria Infirmary, Newcastle-upon-Tyne, UK
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Hobcraft J, Menken J, Preston S. Age, period, and cohort effects in demography: a review. Popul Index 2002; 48:4-43. [PMID: 12338741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Immanuel A, Lamb PJ, Wayman J, Preston S, Griffin SM. Prevention of the neoplastic progression of Barrett's oesophagus by argon beam plasma ablation (Br J Surg 2001;88:1357-62). Br J Surg 2002; 89:626; author reply 626. [PMID: 12019505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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Tye AM, Young SD, Crout NMJ, Zhang H, Preston S, Bailey EH, Davison W, McGrath SP, Paton GI, Kilham K. Predicting arsenic solubility in contaminated soils using isotopic dilution techniques. Environ Sci Technol 2002; 36:982-988. [PMID: 11924544 DOI: 10.1021/es0101633] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
An isotopic dilution assay was developed to measure radiolabile As concentration in a diverse range of soils (pH 3.30-7.62; % C = 1.00-6.55). Soils amended with 50 mg of As kg(-1) (as Na2HAsO4 x 7H2O) were incubated for over 800 d in an aerated "microcosm" experiment. After 818 d, radiolabile As ranged from 27 to 57% of total applied As and showed a pH-dependent increase above pH 6. The radiolabile assay was also applied to three sets of soils historically contaminated with sewage sludge or mine-spoil. Results reflected the various geochemical forms in which the arsenic was present. On soils from a sewage disposal facility, radiolabile arsenate ranged from 3 to 60% of total As; mean lability was lower than in the equivalent pH range of the microcosm soils, suggesting occlusion of As into calcium phosphate compounds in the sludge-amended soils. In soils from mining areas in the U.K. and Malaysia, radiolabile As accounted for 0.44-19% of total As. The lowest levels of lability were associated with extremely large As concentrations, up to 17,000 mg kg(-1), from arsenopyrite. Soil pore water was extracted from the microcosm experiment and speciated using "GEOCHEM". The solid<==>solution equilibria of As in the microcosm soils was described by a simple model based on competition between HAsO4(2-) and HPO4(2-) for "labile" adsorption sites.
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Affiliation(s)
- A M Tye
- School of Life and Environmental Sciences, University of Nottingham, University Park, UK
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Strachan G, Preston S, Maciel H, Porter AJ, Paton GI. Use of bacterial biosensors to interpret the toxicity and mixture toxicity of herbicides in freshwater. Water Res 2001; 35:3490-3495. [PMID: 11547873 DOI: 10.1016/s0043-1354(01)00065-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The dose response relationship between seven commonly used herbicides and four luminescence-based bacterial biosensors was characterised. As herbicide concentration increased the light emitted by the test organism declined in a concentration dependent manner. These dose responses were used to compare the predicted vs. observed response of a biosensor in the presence of multiple contaminants. For the majority of herbicide interactions, the relationship was not additive but primarily antagonistic and sometimes synergistic. These biosensors provide a sensitive test and are able to screen a large volume and wide range of samples with relative rapidity and ease of interpretation. In this study biosensor technology has been successfully applied to interpret the interactive effects of herbicides in freshwater environments.
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Affiliation(s)
- G Strachan
- Department of Plant and Soil Science, University of Aberdeen, UK
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Ferris N, Reid S, Hutchings G, Kitching P, Danks C, Barker I, Preston S. Pen-side test for investigating FMD. Vet Rec 2001; 148:823-4. [PMID: 11467616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Tiensing T, Preston S, Strachan N, Paton GI. Soil solution extraction techniques for microbial ecotoxicity testing: a comparative evaluation. J Environ Monit 2001; 3:91-6. [PMID: 11253026 DOI: 10.1039/b007851o] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The suitability of two different techniques (centrifugation and Rhizon sampler) for obtaining the interstitial pore water of soil (soil solution), integral to the ecotoxicity assessment of metal contaminated soil, were investigated by combining chemical analyses and a luminescence-based microbial biosensor. Two different techniques, centrifugation and Rhizon sampler, were used to extract the soil solution from Insch (a loamy sand) and Boyndie (a sandy loam) soils, which had been amended with different concentrations of Zn and Cd. The concentrations of dissolved organic carbon (DOC), major anions (F- , CI-, NO3, SO4(2-)) and major cations (K+, Mg2+, Ca2+) in the soil solutions varied depending on the extraction technique used. Overall, the concentrations of Zn and Cd were significantly higher in the soil solution extracted using the centrifugation technique compared with that extracted using the Rhizon sampler technique. Furthermore, the differences observed between the two extraction techniques depended on the type of soil from which the solution was being extracted. The luminescence-based biosensor Escherichia coli HB101 pUCD607 was shown to respond to the free metal concentrations in the soil solutions and showed that different toxicities were associated with each soil, depending on the technique used to extract the soil solution. This study highlights the need to characterise the type of extraction technique used to obtain the soil solution for ecotoxicity testing in order that a representative ecotoxicity assessment can be carried out.
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Affiliation(s)
- T Tiensing
- Department of Plant & Soil Science, University of Aberdeen, UK
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Busch MP, Kleinman SH, Jackson B, Stramer SL, Hewlett I, Preston S. Committee report. Nucleic acid amplification testing of blood donors for transfusion-transmitted infectious diseases: Report of the Interorganizational Task Force on Nucleic Acid Amplification Testing of Blood Donors. Transfusion 2000; 40:143-59. [PMID: 10685998 DOI: 10.1046/j.1537-2995.2000.40020143.x] [Citation(s) in RCA: 173] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abstract
BACKGROUND The 39-item Parkinson's disease questionnaire (PDQ-39) is more sensitive to functional change than other measures of health and disability. AIM To determine the ability of this scale to change over time and the concurrent validity of some of its subscales. METHODS We assessed a cohort of 67 Parkinson's patients for 18 months, using the PDQ-39, the GHQ-28 general health questionnaire and the Office of Population and Census Surveys disability instrument. RESULTS The Office of Population and Census Surveys disability instrument and GHQ-28 recorded no significant change, but the PDQ-39 showed marked changes in levels of functioning. We also analysed changes on the PDQ-39 subscales as well as concurrent validity data for several subscales. This showed concurrent validity with the Beck depression and anxiety inventories, the Barthel index and the Royal Postgraduate Medical School severity scale. There was a high level of concurrent validity for all comparisons except for the Barthel index. CONCLUSION The PDQ-39 is a sensitive tool for monitoring change in patients with Parkinson's disease. It has high levels of concurrent validity with established measures of mood and motor function.
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Ray S, Archbold RA, Preston S, Ranjadayalan K, Suliman A, Timmis AD. Computer-generated correspondence for patients attending an open-access chest pain clinic. J R Coll Physicians Lond 1998; 32:420-1. [PMID: 9819732 PMCID: PMC9663127] [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] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
AIM To determine whether general practitioners (GPs) prefer structured computer-generated or standard dictated outpatient clinic letters. DESIGN Questionnaire survey of all GPs referring patients to an open-access chest pain clinic at a district general hospital in London. The GPs were asked to compare three twinned examples of structured computer-generated and unstructured dictated letters. RESULTS Of 93 respondents (response rate 77.5%), 75 (80.6%) preferred the computer-generated letter and 16 (17.2%) preferred the dictated letter (p < 0.0005). The preferred features of the computer-generated letter were its clear presentation, subheadings, and concise information. The computer-generated letter scored significantly higher than the dictated letter: for clarity, mean 8.2 vs 6.5 (p < 0.0005); content, mean 8.5 vs 6.9 (p < 0.0005); and readability, mean 8.2 vs 6.8 (p < 0.0005). The GPs in the survey considered a mean delay of 3.4 days to be acceptable for receiving the letter from the chest pain clinic. CONCLUSION GPs prefer structured computer-generated letters to unstructured dictated letters for patients referred to an open-access chest pain clinic. Computer-generated correspondence allows rapid feedback of information to the referring GP, one of the key requirements of open-access clinics.
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Affiliation(s)
- S Ray
- Department of Cardiology, Newham General Hospital, London
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Abstract
The OX2 membrane glycoprotein contains two immunoglobulin superfamily (IgSF) domains and seems likely to interact with other cell surface proteins. A soluble chimeric protein with the two IgSF domains of OX2 engineered onto domains 3 + 4 of rat CD4 antigen was expressed. To detect possible weak interactions, the chimeric protein was coupled to fluorescent covaspheres to provide a highly avid display of OX2. The OX2 covaspheres bound macrophages but not other cell types. The specificity of the interaction was demonstrated by blocking with Fab fragments of the OX2 monoclonal antibody (mAb). A new mAb, MRC OX88, was raised against macrophages which also blocked the interaction and presumably recognizes the ligand. The epitope for the MRC OX2 mAb and a site for ligand binding were mapped to domain 1 by site-directed mutagenesis. The OX2 antigen is present on thymocytes, some lymphocytes, neurons and endothelial cells; thus, it has the potential to mediate interactions between these cell types and macrophages.
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Affiliation(s)
- S Preston
- MCR Cellular Immunology Unit, Sir William Dunn School of Pathology, Oxford, GB
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Abstract
In this article, a simple methodology to risk-stratify asthmatics is presented and validated. Such a model can be used to identify those high risk and more severely ill asthmatics who could benefit the most from case management and increased educational efforts. Using logistic regression, the model was created to predict the probability of an asthma-related admission among all asthmatics who were members of a large HMO during calendar year 1994 (N = 54,573). The model used data from pharmacy, laboratory, and specialist claims, as well as encounter and demographic data available in U.S. Healthcare's administrative database. A member's prior asthma-specific utilization patterns, pharmaceutically determined severity of illness, and length of enrollment in the managed care organization had the most influence on the equation. A cross-validation of the model confirms how administrative data can be used to accurately risk-stratify those with a chronic disease. Finally, some additional research possibilities associated with the identification of high risk subscribers using only administrative data are outlined.
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Affiliation(s)
- J Grana
- U.S. Quality Algorithms, Inc., Blue Bell, Pennsylvania 19422, USA
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Hd. J, Hirman C, Preston S, Loi VM. Vietnamese Casualties during the American War. Population (French Edition) 1996. [DOI: 10.2307/1534372] [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: 11/10/2022]
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Acton KJ, Preston S, Rith-Najarian S. Clinical hypertension in Native Americans: a comparison of 1987 and 1992 rates from ambulatory care data. Public Health Rep 1996; 111 Suppl 2:33-6. [PMID: 8898769 PMCID: PMC1381660] [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: 02/02/2023] Open
Abstract
THE AUTHORS EXAMINED THE PREVALENCE of clinically diagnosed hypertension among all American Indian and Alaska Native outpatients served in Indian Health Service (IHS) facilities in fiscal year 1992, and compared these rates with a similar analysis done in 1987. In this report they provided data on that analysis as well as on the association between hypertension and diabetes. The 1992 overall estimated age-adjusted prevalence of clinically diagnosed hypertension in adults older than age 15 was 10.4%, compared with 10.9% in 1987, a small but significant decrease. Considerable variation exists in hypertension prevalence rates in American Indian communities as analyzed by IHS service area. This report represents an attempt to use ambulatory patient care data to demonstrate a means for ongoing surveillance of a chronic disease for the entire service population of the IHS. This comprehensive data set represents approximately 60% of the entire U.S. American Indian and Alaska Native population. Based on the ongoing nature of this ambulatory patient care data system, this model for hypertension surveillance permits a unique opportunity for longitudinal evaluation of quality improvement efforts for the American Indian and Alaska Native populations served by the IHS.
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Affiliation(s)
- K J Acton
- Indian Health Service Diabetes Program, Billings Area Office, MT 59803, USA
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Brown MH, Preston S, Barclay AN. A sensitive assay for detecting low-affinity interactions at the cell surface reveals no additional ligands for the adhesion pair rat CD2 and CD48. Eur J Immunol 1995; 25:3222-8. [PMID: 8566004 DOI: 10.1002/eji.1830251204] [Citation(s) in RCA: 31] [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: 01/31/2023]
Abstract
The ligand for the T cell antigen CD2 is CD48 in rodents, but CD58 in humans. The extracellular parts of these three antigens are structurally related in that all contain two immunoglobulin superfamily (IgSF) domains. There have been reports of alternative ligands for CD2 in the human, but not so far in rodents. We describe the analysis of ligands for rat CD2 and CD48 using fluorescent beads capable of displaying a high ligand density and detecting low-affinity interactions like that of CD2 with CD48 (Kd = 60-90 microM). Monovalent chimeric proteins containing the two IgSF domains of rat CD48 or CD2 and domains 3 and 4 of rat CD4 (CD4d3+4) were anchored to fluorescent covaspheres via a CD4 monoclonal antibody (mAb) with the CD48 or CD2 domains available for ligand binding. Multivalent CD48-CD4d3+4 covaspheres gave strong specific binding to rat CD2 expressed on the surface of transfected Jurkat cells. CD48-CD4d3+4 was compared with CD48-IgG and CD48-IgM as tools for detecting binding at the cell surface. Soluble divalent CD48-IgG and decavalent CD48-IgM bound to soluble CD2 with a Koff of around 10(-3) s-1 as determined using a BIAcore biosensor. However, binding to cells by CD48-IgG and CD48-IgM was only detectable when they were immobilized on covaspheres and represented no increase in sensitivity over CD48-CD4 covaspheres when tested for binding to cells expressing high and low levels of CD2. CD48-CD4d3+4 covaspheres only bound to rat cells expressing CD2. In the reverse orientation, bindign of CD2-CD4d3+4 covaspheres was dependent on expression of CD48. Pre-incubation of cells with CD2 or CD48 mAb abolished all binding of CD48-CD4d3+4 or CD2-CD4d3+4, respectively. The data provide no evidence for an alternative ligand for rat CD2 or CD48.
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Affiliation(s)
- M H Brown
- MRC Cellular Immunology Unit, Sir William Dunn School of Pathology, Oxford
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Abstract
In monogamous mammals, males typically show selective affiliation with a single mate, high levels of paternal care, and aggression towards conspecifics to protect male and offspring. We have previously described how selective aggression and affiliation increase after mating in the male prairie vole, Microtus ochrogaster. The current studies further explored the behavioral changes that follow mating in the male of this species. The first set of experiments tested males on several behavioral measures after 24 h of either mating, social (but not sexual) exposure, or no social contact. After 24 h of mating, but not after the other two conditions, aggression and affiliation (partner preference) increased as previously reported. In addition, mated animals showed increased exploration of the open arms of a plus maze, consistent with decreased fearfulness. There were no group differences in paternal behavior (which was high in all three conditions) or analgesia (assessed by tail flick latency). To determine the minimum amount of mating necessary for the induction of aggression, males were tested in a resident-intruder paradigm after 1,6, or 24 h of mating. Although 1 h of mating was associated with a transient increase in the frequency of threats and attacks, the full spectrum of enduring aggression was observed only in the males given 24 h of mating. In a final experiment, the behavioral consequences of mating were studied in males of the closely related montane vole (Microtus montanus) which does not pair bond. Males of this nonmonogamous vole species did not show increased aggression, partner preference, or alterations in plus maze exploration following 24 h of mating. These results demonstrate the importance of prolonged mating for the induction of pair bonding in the monogamous male and they suggest that increases in aggression and affiliation are associated with decreased fearfulness in pair bonded males.
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Affiliation(s)
- T R Insel
- Laboratory of Neurophysiology, National Institute of Mental Health, Poolesville, MD 20837, USA
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Blyth W, Preston S, Offenberger A, Key M, Wark J, Najmudin Z, Modena A, Djaoui A, Dangor A. Plasma Temperature in Optical Field Ionization of Gases by Intense Ultrashort Pulses of Ultraviolet Radiation. Phys Rev Lett 1995; 74:554-557. [PMID: 10058787 DOI: 10.1103/physrevlett.74.554] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Harvey AL, Barfaraz A, Thomson E, Faiz A, Preston S, Harris JB. Screening of snake venoms for neurotoxic and myotoxic effects using simple in vitro preparations from rodents and chicks. Toxicon 1994; 32:257-65. [PMID: 8016848 DOI: 10.1016/0041-0101(94)90078-7] [Citation(s) in RCA: 115] [Impact Index Per Article: 3.8] [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: 01/28/2023]
Abstract
Eight snake venoms designated by the WHO as International Reference Venoms, and one additional venom were assessed for neurotoxic and myotoxic effects in vitro using the chick biventer cervicis and the rat and mouse phrenic nerve-diaphragm preparations. The objective was to determine whether any of the preparations could be used to detect evidence of neurotoxic or myotoxic activity prior to a more detailed examination. Bungarus multicinctus venom at concentrations above 1 microgram ml-1 selectively blocked neuromuscular transmission, with no direct effect on muscle fibres. Naja naja kaouthia and Notechis scutatus venoms selectively blocked neuromuscular transmission at low concentrations, but at higher concentrations both venoms caused direct effects on skeletal muscle resulting in contractures, loss of tension following direct stimulation and a loss in sensitivity to elevated [K+]0. Vipera russelli (Thailand) venom also blocked neuromuscular transmission but it was less potent than the venoms of B. multicinctus, N. n. kaouthia and N. scutatus. It also caused contractures in the chick biventer cervicis muscle. The venoms of Echis carinatus (Iran and Mali), Crotalus atrox, Bothrops atrox asper and Trimeresurus flavoviridis had limited neuromuscular blocking activity, and most of these venoms blocked [K+]0 and cholinoceptor stimulation in the chick muscle. Although both chick and rodent muscles allowed the assessment of neurotoxic and myotoxic activity, the chick biventer cervicis was simpler and more robust in use than either of the rodent phrenic nerve-diaphragm preparations. We propose that the chick biventer cervicis muscle could be used as a standard preparation for the screening of snake venoms for neurotoxic and myotoxic effects, and that it may be possible to use this preparation as a means to check that antivenoms can neutralize neurotoxic and direct myotoxic actions of venoms.
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Affiliation(s)
- A L Harvey
- Department of Physiology and Pharmacology, University of Strathclyde, Glasgow, U.K
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