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Michael Bourke

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https://www.readbyqxmd.com/read/29145894/inositol-in-the-management-of-abdominal-aortic-aneurysm-imagen-study-protocol-for-a-randomised-controlled-trial
#1
Sophie E Rowbotham, Jenna L Pinchbeck, Georgina Anderson, Bernie Bourke, Michael Bourke, T Christian Gasser, Rene Jaeggi, Jason S Jenkins, Corey S Moran, Susan K Morton, Christopher M Reid, Ramesh Velu, Lisan Yip, Joseph V Moxon, Jonathan Golledge
BACKGROUND: An abdominal aortic aneurysm (AAA) is a focal dilation of the abdominal aorta and is associated with a risk of fatal rupture. Experimental studies suggest that myo-inositol may exert beneficial effects on AAAs through favourable changes to biological pathways implicated in AAA pathology. The aim of the Inositol in the MAnaGemENt of abdominal aortic aneurysm (IMAGEN) trial is to assess if myo-inositol will reduce AAA growth. METHODS/DESIGN: IMAGEN is a multi-centre, prospective, parallel-group, randomised, double-blind, placebo-controlled trial...
November 16, 2017: Trials
https://www.readbyqxmd.com/read/29102440/patient-satisfaction-with-radioguided-occult-lesion-localisation-using-iodine-125-seeds-rollis-versus-conventional-hookwire-localisation
#2
Jeremy S L Ong, Joelin Teh, Christobel Saunders, Anita G Bourke, Catalina Lizama, Jade Newton, Michael Phillips, Donna B Taylor
BACKGROUND: Women with impalpable or poorly palpable breast cancer require radiologically guided localisation prior to breast conserving surgery. Radioguided Occult Lesion Localisation using Iodine-125 Seed (ROLLIS) is an emerging alternative to conventional Hookwire Localisation (HWL). We compared ROLLIS with conventional HWL with respect to patient reported stress and discomfort related to the localisation procedure. PATIENTS AND METHODS: From September 2013 to January 2016, women who were eligible for breast conserving surgery with impalpable or poorly palpable histologically confirmed invasive or in-situ carcinoma were recruited to the multi-centre ROLLIS randomised controlled trial and underwent either ROLLIS or HWL...
October 16, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29020690/cold-forceps-avulsion-with-adjuvant-snare-tip-soft-coagulation-cast-is-an-effective-and-safe-strategy-for-the-management-of-non-lifting-large-laterally-spreading-colonic-lesions
#3
David J Tate, Farzan F Bahin, Lobke Desomer, Mayenaaz Sidhu, Vikas Gupta, Michael J Bourke
Background and aims Non-lifting large laterally spreading colorectal lesions (LSLs) are challenging to resect endoscopically and often necessitate surgery. A safe, simple technique to treat non-lifting LSLs endoscopically with robust long-term outcomes has not been described. Methods In this single-center prospective observational study of consecutive patients referred for endoscopic mucosal resection (EMR) of LSLs ≥ 20 mm, LSLs not completely resectable by snare because of non-lifting underwent standardized completion of resection with cold-forceps avulsion and adjuvant snare-tip soft coagulation (CAST)...
October 11, 2017: Endoscopy
https://www.readbyqxmd.com/read/28988198/wide-field-endoscopic-mucosal-resection-versus-endoscopic-submucosal-dissection-for-laterally-spreading-colorectal-lesions-a-cost-effectiveness-analysis
#4
Farzan F Bahin, Steven J Heitman, Khalid N Rasouli, Hema Mahajan, Duncan McLeod, Eric Y T Lee, Stephen J Williams, Michael J Bourke
OBJECTIVE: To compare the cost-effectiveness of endoscopic submucosal dissection (ESD) and wide-field endoscopic mucosal resection (WF-EMR) for removing large sessile and laterally spreading colorectal lesions (LSLs) >20 mm. DESIGN: An incremental cost-effectiveness analysis using a decision tree model was performed over an 18-month time horizon. The following strategies were compared: WF-EMR, universal ESD (U-ESD) and selective ESD (S-ESD) for lesions highly suspicious for containing submucosal invasive cancer (SMIC), with WF-EMR used for the remainder...
October 7, 2017: Gut
https://www.readbyqxmd.com/read/28884493/endoscopic-submucosal-dissection-in-the-west-current-status-and-future-directions
#5
REVIEW
Michael X Ma, Michael J Bourke
Endoscopic submucosal dissection (ESD) was first conceptually described almost 30 years ago in Japan and is now widely practiced throughout East Asia. ESD expands the boundaries of endoscopic resection (ER) by allowing en bloc resection of large early neoplastic lesions within the gastrointestinal tract (GIT). This offers advantages over other ER techniques by facilitating definitive histological staging and curative treatment of early cancer in selected cases. Indeed the experience of ESD in Eastern countries is significant, and excellent outcomes from high volume centres are reported...
September 7, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28842048/management-of-duodenal-polyps
#6
REVIEW
Michael X Ma, Michael J Bourke
Duodenal adenomas are the most common type of polyp arising from the duodenum. These adenomas can occur within and outside of genetic syndromes, and are broadly classified as non-ampullary or ampullary depending on their location. All adenomas have malignant potential and are therefore appropriately treated by endoscopic resection. However, the unique anatomical properties of the duodenum, namely its relatively thin and vascular walls, narrow luminal diameter and relationship to the ampulla and its associated pancreatic and biliary drainage, pose an increased degree of complexity for any endoscopic interventions in this area...
August 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28783304/post-polymerization-c-h-borylation-of-donor-acceptor-materials-gives-highly-efficient-solid-state-near-infrared-emitters-for-near-ir-oleds-and-effective-biological-imaging
#7
Daniel L Crossley, Laura Urbano, Robert Neumann, Struan Bourke, Jennifer Jones, Lea Ann Dailey, Mark Green, Martin J Humphries, Simon M King, Michael L Turner, Michael J Ingleson
Post-polymerization modification of the donor-acceptor polymer, poly(9,9-dioctylfluorene-alt-benzothiadiazole), PF8-BT, by electrophilic C-H borylation is a simple method to introduce controllable quantities of near-infrared (near-IR) emitting chromophore units into the backbone of a conjugated polymer. The highly stable borylated unit possesses a significantly lower LUMO energy than the pristine polymer resulting in a reduction in the band gap of the polymer by up to 0.63 eV and a red shift in emission of more than 150 nm...
August 30, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28757301/quality-of-life-outcomes-after-primary-treatment-for-clinically-localised-prostate-cancer-a-systematic-review
#8
REVIEW
Michael Lardas, Matthew Liew, Roderick C van den Bergh, Maria De Santis, Joaquim Bellmunt, Thomas Van den Broeck, Philip Cornford, Marcus G Cumberbatch, Nicola Fossati, Tobias Gross, Ann M Henry, Michel Bolla, Erik Briers, Steven Joniau, Thomas B Lam, Malcolm D Mason, Nicolas Mottet, Henk G van der Poel, Olivier Rouvière, Ivo G Schoots, Thomas Wiegel, Peter-Paul M Willemse, Cathy Yuhong Yuan, Liam Bourke
CONTEXT: Current evidence-based management for clinically localised prostate cancer includes active surveillance, surgery, external beam radiotherapy (EBRT) and brachytherapy. The impact of these treatment modalities on quality of life (QoL) is uncertain. OBJECTIVE: To systematically review comparative studies investigating disease-specific QoL outcomes as assessed by validated cancer-specific patient-reported outcome measures with at least 1 yr of follow-up after primary treatment for clinically localised prostate cancer...
July 27, 2017: European Urology
https://www.readbyqxmd.com/read/28713060/a-standardized-imaging-protocol-for-the-endoscopic-prediction-of-dysplasia-within-sessile-serrated-polyps-with-video
#9
David J Tate, Mahesh Jayanna, Halim Awadie, Lobke Desomer, Ralph Lee, Stephen J Heitman, Mayenaaz Sidhu, Kathleen Goodrick, Nicholas G Burgess, Hema Mehajan, Duncan McLeod, Michael J Bourke
BACKGROUND AND AIMS: Dysplasia within sessile serrated polyps (SSPs) is difficult to detect, may be mistaken for an adenoma risking incomplete resection of the background serrated tissue, and is strongly implicated in interval cancer after colonoscopy. The use of endoscopic imaging to detect dysplasia within SSP has not been systematically studied. METHODS: Consecutively detected SSP ≥8 mm in size were evaluated using a standardized imaging protocol at a tertiary endoscopy center over 3 years...
July 13, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28610868/endoscopic-submucosal-dissection-and-emr-for-large-colorectal-polyps-the-perfect-is-the-enemy-of-good
#10
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%C3%A2-referred-for-colonic-endoscopic-mucosal-resection-a%C3%A2-large-multicenter-cohort
#11
MULTICENTER STUDY
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 than for endoscopic mucosal resection (EMR)...
September 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
#12
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)...
September 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
#13
RANDOMIZED CONTROLLED TRIAL
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
#14
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...
November 15, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28470707/management-of-colonic-polyps-an-advancing-discipline
#15
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
#16
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
#17
REVIEW
Douglas K Rex, Cesare Hassan, Michael J Bourke
No abstract text is available yet for this article.
August 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
#18
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...
July 2017: Endoscopy
https://www.readbyqxmd.com/read/28262298/should-we-ablate-atrial-fibrillation-during-coronary-artery-bypass-grafting-and-aortic-valve-replacement
#19
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...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28254734/telerehabilitation-versus-traditional-care-following-total-hip-replacement-a-randomized-controlled-trial-protocol
#20
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
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