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Michael Bourke

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https://www.readbyqxmd.com/read/28610868/endoscopic-submucosal-dissection-and-emr-for-large-colorectal-polyps-the-perfect-is-the-enemy-of-good
#1
EDITORIAL
Steven J Heitman, Michael J Bourke
No abstract text is available yet for this article.
July 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28583826/risk-stratification-for-covert-invasive-cancer-among-patients-referred-for-colonic-endoscopic-mucosal-resection-a-large-multi-center-cohort
#2
Nicholas G Burgess, Luke F Hourigan, Simon A Zanati, Gregor J Brown, Rajvinder Singh, Stephen J Williams, Spiro C Raftopoulos, Donald Ormonde, Alan Moss, Karen Byth, Hema Mahajan, Duncan McLeod, Michael J Bourke
BACKGROUND & AIMS: Among patients with large colorectal sessile polyps or laterally spreading lesions, it is important to identify those at risk for submucosal invasive cancer (SMIC). Lesions with overt endoscopic evidence of SMIC are referred for surgery, although those without these features might still contain SMIC that is not visible on endoscopic inspection (covert SMIC). Lesions with a high covert SMIC risk might be better suited for endoscopic submucosal dissection (ESD) than for endoscopic mucosal resection (EMR)...
June 2, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28564715/two-stage-endoscopic-mucosal-resection-is-a-safe-and-effective-salvage-therapy-after-a-failed-single-session-approach
#3
David J Tate, Lobke Desomer, Luke F Hourigan, Alan Moss, Rajvinder Singh, Michael J Bourke
Background and study aims Endoscopic mucosal resection (EMR) of laterally spreading colonic lesions ≥ 20 mm (LSLs) is ideally performed in a single session (ssEMR) and avoids surgery in > 90 % of patients. We investigated whether a second attempt is safe or useful when ssEMR fails at a tertiary center. Patients and methods In a multicenter prospective observational study of patients with LSL treated by EMR at four tertiary centers over 8 years, incompletely resected LSLs were referred for surgery or underwent two-stage EMR (tsEMR)...
May 31, 2017: Endoscopy
https://www.readbyqxmd.com/read/28528348/effect-of-home-noninvasive-ventilation-with-oxygen-therapy-vs-oxygen-therapy-alone-on-hospital-readmission-or-death-after-an-acute-copd-exacerbation-a-randomized-clinical-trial
#4
Patrick B Murphy, Sunita Rehal, Gill Arbane, Stephen Bourke, Peter M A Calverley, Angela M Crook, Lee Dowson, Nicholas Duffy, G John Gibson, Philip D Hughes, John R Hurst, Keir E Lewis, Rahul Mukherjee, Annabel Nickol, Nicholas Oscroft, Maxime Patout, Justin Pepperell, Ian Smith, John R Stradling, Jadwiga A Wedzicha, Michael I Polkey, Mark W Elliott, Nicholas Hart
Importance: Outcomes after exacerbations of chronic obstructive pulmonary disease (COPD) requiring acute noninvasive ventilation (NIV) are poor and there are few treatments to prevent hospital readmission and death. Objective: To investigate the effect of home NIV plus oxygen on time to readmission or death in patients with persistent hypercapnia after an acute COPD exacerbation. Design, Setting, and Participants: A randomized clinical trial of patients with persistent hypercapnia (Paco2 >53 mm Hg) 2 weeks to 4 weeks after resolution of respiratory acidemia, who were recruited from 13 UK centers between 2010 and 2015...
June 6, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28494577/sessile-serrated-adenomas-how-to-detect-characterize-and-resect
#5
REVIEW
Michael X Ma, Michael J Bourke
Serrated polyps are important contributors to the burden of colorectal cancers (CRC). These lesions were once considered to have no malignant potential, but currently up to 30% of all CRC are recognized to arise from the serrated neoplasia pathway. The primary premalignant lesions are sessile serrated adenomas/polyps (SSA/Ps), although traditional serrated adenomas are relatively uncommon. Compared to conventional adenomas, SSA/Ps are morphologically subtle with indistinct borders, may be difficult to detect endoscopically, are more prevalent than previously thought, are associated with synchronous and metachronous advanced neoplasia, and have a higher risk of incomplete resection...
May 11, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28470707/management-of-colonic-polyps-an-advancing-discipline
#6
Amir Klein, Michael J Bourke
No abstract text is available yet for this article.
May 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28405317/changes-in-gene-expression-of-neo-squamous-mucosa-after-endoscopic-treatment-for-dysplastic-barrett-s-esophagus-and-intramucosal-adenocarcinoma
#7
Angelique Levert-Mignon, Michael J Bourke, Sarah J Lord, Andrew C Taylor, Antony R Wettstein, Melanie Edwards, Natalia K Botelho, Rebecca Sonson, Chatura Jayasekera, Oliver M Fisher, Melissa L Thomas, Finlay Macrae, Damian J Hussey, David I Watson, Reginald V Lord
BACKGROUND: Endoscopic therapy, including by radiofrequency ablation (RFA) or endoscopic mucosal resection (EMR), is first line treatment for Barrett's esophagus (BE) with high-grade dysplasia (HGD) or intramucosal cancer (IMC) and may be appropriate for some patients with low-grade dysplasia (LGD). OBJECTIVE: The purpose of this study was to investigate the molecular effects of endotherapy. METHODS: mRNA expression of 16 genes significantly associated with different BE stages was measured in paired pre-treatment BE tissues and post-treatment neo-squamous biopsies from 36 patients treated by RFA (19 patients, 3 IMC, 4 HGD, 12 LGD) or EMR (17 patients, 4 IMC, 13 HGD)...
February 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28396276/the-colonoscopist-s-guide-to-the-vocabulary-of-colorectal-neoplasia-histology-morphology-and-management
#8
REVIEW
Douglas K Rex, Cesare Hassan, Michael J Bourke
No abstract text is available yet for this article.
April 7, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28376545/endoscopic-resection-of-large-duodenal-and-papillary-lateral-spreading-lesions-is-clinically-and-economically-advantageous-compared-with-surgery
#9
Amir Klein, Golo Ahlenstiel, David J Tate, Nicholas Burgess, Arthur Richardson, Tony Pang, Karen Byth, Michael J Bourke
Background and study aims Adenomas of the duodenum and ampulla are uncommon. For lesions ≤ 20 mm in size and confined to the papillary mound, endoscopic resection is well supported by systematic study. However, for large laterally spreading lesions of the duodenum or papilla (LSL-D/P), surgery is often performed despite substantial associated morbidity and mortality. We aimed to compare actual endoscopic outcomes of such lesions and costs with those predicted for surgery using validated prediction tools...
April 4, 2017: Endoscopy
https://www.readbyqxmd.com/read/28262298/should-we-ablate-atrial-fibrillation-during-coronary-artery-bypass-grafting-and-aortic-valve-replacement
#10
Talal Al-Atassi, Donna-May Kimmaliardjuk, Camille Dagenais, Michael Bourke, Buu-Khanh Lam, Fraser D Rubens
BACKGROUND: This study evaluates the safety and efficacy of concomitant atrial fibrillation (AF) ablation in patients with AF undergoing coronary artery bypass grafting (CABG) or aortic valve replacement (AVR) or both. METHODS: This is a single-center retrospective study of patients with AF presenting for CABG or AVR or both between 2009 and 2013. They were divided into an ablation group that underwent concomitant AF ablation and a control group that did not. Follow-up data were obtained using telephone interviews...
March 2, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28254734/telerehabilitation-versus-traditional-care-following-total-hip-replacement-a-randomized-controlled-trial-protocol
#11
Mark Nelson, Michael Bourke, Kay Crossley, Trevor Russell
BACKGROUND: Total hip replacement (THR) is the gold standard treatment for severe hip osteoarthritis. Effectiveness of physical rehabilitation for THR patients following discharge from hospital is supported by evidence; however, barriers such as geographical location and transport can limit access to appropriate health care. One solution to this issue is using an alternative model of care using telerehabilitation technology to deliver rehabilitation programs directly into patients' homes...
March 2, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28249317/endoscopic-management-of-large-nonpedunculated-colorectal-polyps-selective-treatment-algorithms-are-needed
#12
Halim Awadie, Alessandro Repici, Michael J Bourke
No abstract text is available yet for this article.
March 2017: Endoscopy
https://www.readbyqxmd.com/read/28212588/colorectal-polypectomy-and-endoscopic-mucosal-resection-emr-european-society-of-gastrointestinal-endoscopy-esge-clinical-guideline
#13
Monika Ferlitsch, Alan Moss, Cesare Hassan, Pradeep Bhandari, Jean-Marc Dumonceau, Gregorios Paspatis, Rodrigo Jover, Cord Langner, Maxime Bronzwaer, Kumanan Nalankilli, Paul Fockens, Rawi Hazzan, Ian M Gralnek, Michael Gschwantler, Elisabeth Waldmann, Philip Jeschek, Daniela Penz, Denis Heresbach, Leon Moons, Arnaud Lemmers, Konstantina Paraskeva, Juergen Pohl, Thierry Ponchon, Jaroslaw Regula, Alessandro Repici, Matthew D Rutter, Nicholas G Burgess, Michael J Bourke
1 ESGE recommends cold snare polypectomy (CSP) as the preferred technique for removal of diminutive polyps (size ≤ 5 mm). This technique has high rates of complete resection, adequate tissue sampling for histology, and low complication rates. (High quality evidence, strong recommendation.) 2 ESGE suggests CSP for sessile polyps 6 - 9 mm in size because of its superior safety profile, although evidence comparing efficacy with hot snare polypectomy (HSP) is lacking. (Moderate quality evidence, weak recommendation...
March 2017: Endoscopy
https://www.readbyqxmd.com/read/28161819/optimizing-resection-of-large-colorectal-polyps
#14
REVIEW
Steven J Heitman, David J Tate, Michael J Bourke
Polypectomy reduces the incidence and mortality of colorectal cancer (CRC). The widespread adoption of CRC screening, more rigorous colonoscopy techniques, and advancements in endoscopic imaging have led to a greater awareness of complex polyps. Whereas surgery was once considered necessary for many large sessile or laterally spreading lesions (LSLs) in the colorectum, the majority can now be removed endoscopically. Endoscopic mucosal resection (EMR) is an established technique for treatment of colorectal LSLs...
March 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28070216/metabolism-in-anoxic-permeable-sediments-is-dominated-by-eukaryotic-dark-fermentation
#15
Michael F Bourke, Philip J Marriott, Ronnie N Glud, Harald Hasler-Sheetal, Manoj Kamalanathan, John Beardall, Chris Greening, Perran L M Cook
Permeable sediments are common across continental shelves and are critical contributors to marine biogeochemical cycling. Organic matter in permeable sediments is dominated by microalgae, which as eukaryotes have different anaerobic metabolic pathways to prokaryotes such as bacteria and archaea. Here we present analyses of flow-through reactor experiments showing that dissolved inorganic carbon is produced predominantly as a result of anaerobic eukaryotic metabolic activity. In our experiments, anaerobic production of dissolved inorganic carbon was consistently accompanied by large dissolved H2 production rates, suggesting the presence of fermentation...
January 2017: Nature Geoscience
https://www.readbyqxmd.com/read/28061339/how-to-perform-high-quality-endoscopic-mucosal-resection-during-colonoscopy
#16
Amir Klein, Michael J Bourke
No abstract text is available yet for this article.
February 2017: Gastroenterology
https://www.readbyqxmd.com/read/27986114/endoscopic-detection-of-large-and-advanced-colonic-lesions-are-we-missing-the-forest-for-the-trees
#17
EDITORIAL
David J Tate, Nicholas G Burgess, Michael J Bourke
No abstract text is available yet for this article.
January 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27931634/complications-of-endoscopic-polypectomy-endoscopic-mucosal-resection-and-endoscopic-submucosal-dissection-in-the-colon
#18
REVIEW
Michael X Ma, Michael J Bourke
Endoscopic resection (ER), including endoscopic polypectomy (EP), endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) are used to remove superficial neoplasms from the colon. Snare resection is used for EP and EMR, whereas endoscopic knives are used to perform dissection in the submucosal space in ESD. 80-90% colonic polyps are <10 millimetres (mm) and are effectively managed by conventional EP. Increasingly cold snare polypectomy is preferred. Large laterally spreading lesions (LSLs) and sessile polyps ≥20 mm are primarily removed by EMR...
October 2016: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/27908600/adenoma-recurrence-after-piecemeal-colonic-emr-is-predictable-the-sydney-emr-recurrence-tool
#19
David J Tate, Lobke Desomer, Amir Klein, Gregor Brown, Luke F Hourigan, Eric Y T Lee, Alan Moss, Donald Ormonde, Spiro Raftopoulos, Rajvinder Singh, Stephen J Williams, Simon Zanati, Karen Byth, Michael J Bourke
BACKGROUND AND AIMS: EMR is the primary treatment of large laterally spreading lesions (LSLs) in the colon. Residual or recurrent adenoma (RRA) is a major limitation. We aimed to identify a robust method to stratify the risk of RRA. METHODS: Prospective multicenter data on consecutive LSLs ≥20 mm removed by piecemeal EMR from 8 Australian tertiary-care centers were included (September 2008 until May 2016). A logistic regression model for endoscopically determined recurrence (EDR) was created on a randomly selected half of the cohort to yield the Sydney EMR recurrence tool (SERT), a 4-point score to stratify the incidence of RRA based on characteristics of the index EMR...
March 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27846606/emergence-and-spread-of-a-human-transmissible-multidrug-resistant-nontuberculous-mycobacterium
#20
Josephine M Bryant, Dorothy M Grogono, Daniela Rodriguez-Rincon, Isobel Everall, Karen P Brown, Pablo Moreno, Deepshikha Verma, Emily Hill, Judith Drijkoningen, Peter Gilligan, Charles R Esther, Peadar G Noone, Olivia Giddings, Scott C Bell, Rachel Thomson, Claire E Wainwright, Chris Coulter, Sushil Pandey, Michelle E Wood, Rebecca E Stockwell, Kay A Ramsay, Laura J Sherrard, Timothy J Kidd, Nassib Jabbour, Graham R Johnson, Luke D Knibbs, Lidia Morawska, Peter D Sly, Andrew Jones, Diana Bilton, Ian Laurenson, Michael Ruddy, Stephen Bourke, Ian C J W Bowler, Stephen J Chapman, Andrew Clayton, Mairi Cullen, Owen Dempsey, Miles Denton, Maya Desai, Richard J Drew, Frank Edenborough, Jason Evans, Jonathan Folb, Thomas Daniels, Helen Humphrey, Barbara Isalska, Søren Jensen-Fangel, Bodil Jönsson, Andrew M Jones, Terese L Katzenstein, Troels Lillebaek, Gordon MacGregor, Sarah Mayell, Michael Millar, Deborah Modha, Edward F Nash, Christopher O'Brien, Deirdre O'Brien, Chandra Ohri, Caroline S Pao, Daniel Peckham, Felicity Perrin, Audrey Perry, Tania Pressler, Laura Prtak, Tavs Qvist, Ali Robb, Helen Rodgers, Kirsten Schaffer, Nadia Shafi, Jakko van Ingen, Martin Walshaw, Danie Watson, Noreen West, Joanna Whitehouse, Charles S Haworth, Simon R Harris, Diane Ordway, Julian Parkhill, R Andres Floto
Lung infections with Mycobacterium abscessus, a species of multidrug-resistant nontuberculous mycobacteria, are emerging as an important global threat to individuals with cystic fibrosis (CF), in whom M. abscessus accelerates inflammatory lung damage, leading to increased morbidity and mortality. Previously, M. abscessus was thought to be independently acquired by susceptible individuals from the environment. However, using whole-genome analysis of a global collection of clinical isolates, we show that the majority of M...
November 11, 2016: Science
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