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https://www.readbyqxmd.com/read/29348006/importance-of-contrast-aortography-with%C3%A2-lotus-transcatheter-aortic-valve-replacement-a-post-hoc-analysis-from-the-respond-post-market-study
#1
Lennart van Gils, Jochen Wöhrle, David Hildick-Smith, Sabine Bleiziffer, Daniel J Blackman, Mohamed Abdel-Wahab, Ulrich Gerckens, Stephen Brecker, Vinayak Bapat, Thomas Modine, Osama I Soliman, Andrey Nersesov, Dominic Allocco, Volkmar Falk, Nicolas M Van Mieghem
OBJECTIVES: The aim of this post hoc analysis from the RESPOND (Repositionable Lotus Valve System-Post-Market Evaluation of Real World Clinical Outcomes) post-market study was to assess the final implantation depth on the contrast aortogram after Lotus valve (Boston Scientific, Marlborough, Massachusetts) transcatheter aortic valve replacement (TAVR) and to correlate with permanent pacemaker implantation (PPI) and paravalvular leak (PVL). BACKGROUND: Contrast aortography allows for the assessment of implantation depth and PVL during and after TAVR...
January 22, 2018: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29344562/endoscopic-ultrasound-guided-choledochoduodenostomy-using-partially-covered-self-expandable-metal-stent-in-patients-with-malignant-distal-biliary-obstruction-and-unsuccessful-ercp
#2
Praveer Rai, C R Lokesh, Amit Goel, Rakesh Aggarwal
Background and study aims : Endoscopic ultrasound-guided choledochoduodenostomy (EUS-CDS) is an alternative to percutaneous transhepatic biliary drainage (PTBD) for patients with malignant distal biliary obstruction in whom ERCP has failed. We studied technical success, clinical success, stent patency rate and occurrence of adverse events in patients undergoing EUS-CDS with partially-covered self-expanding metal stent (PCSEMS). Patients and methods : Medical records of consecutive patients with unresectable malignant distal biliary obstruction requiring biliary drainage who underwent EUS-CDS because of failure of attempt at ERCP were reviewed...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29340161/direct-ice-imaging-from-inside-the-left-atrial-appendage-during-ablation-of-persistent-atrial-fibrillation
#3
Gabriel Cismaru, Mihai Puiu, Radu Rosu, Lucian Muresan, Gabriel Gusetu, Dana Pop, Dumitru Zdrenghea
We present the case of a 59-year-old patient with persistent atrial fibrillation, referred for atrial fibrillation ablation. The procedure was performed with the help of NAVX 3D mapping system (Saint Jude Medical) and iLAB Ultra ICE Plus ultrasound imaging catheter (Boston Scientific). The catheter permits cross-sectional images perpendicular to catheter's long axis. From inside left atrial appendage (LAA) looks trabeculated, due to pectinate muscles running parallel to each other. The presence of a thrombus was excluded from the appendage...
January 2018: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/29337042/endovascular-recanalization-for-nonmalignant-obstruction-of-the-inferior-vena-cava
#4
Young Erben, Haraldur Bjarnason, Gudrun L Oladottir, Robert D McBane, Peter Gloviczki
OBJECTIVE: The aim of this study was to evaluate outcomes of endovascular recanalization of the inferior vena cava (IVC) and iliac veins with long-standing chronic venous obstruction caused by nonmalignant disease. METHODS: Medical records for 66 patients who underwent endovascular recanalization of the IVC with or without iliac veins from January 2001 to December 2014 at our medical center were retrospectively reviewed. Primary outcomes included morbidity and mortality; secondary outcomes included primary, primary assisted, and secondary patency and resolution of symptoms...
January 11, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29316599/polypropylene-mesh-sling-for-stress-urinary-incontinence-does-memory-shaping-of-the-polypropylene-mesh-matter
#5
Andrew Doering, Ali Azadi, David Doering, Donald R Ostergard
We report a case of a mid-urethral sling (Advantage Fit™, Boston Scientific Corporation, Marlborough, Massachusetts) freshly removed from its original package. Upon removal from the packaging, the sling was noted to have a deformation in positioning at the midpoint, with curvature opposite the natural curve of the sling in the body. The images show the comparison to a sling with the desired positioning. Mid-urethral slings are commonly made from polypropylene mesh which has memory properties. It is important that manufacturers ensure that any steps in the processing or packaging of slings do not result in changes in the shape of the sling that may have unknown impacts on its clinical outcome...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29315719/oversensing-of-transthoracic-excitation-stimuli-in-contemporary-pacemakers
#6
James D Ryan, Nathan D Tempel, Dean D Engle, David L Hayes, Yong-Mei Cha, Samuel J Asirvatham
BACKGROUND: Transthoracic impedance measurements (TIM) is primarily used for minute ventilation (MV) rate adaptive sensors in pacemakers. With elevated impedance the TIM electrical signal itself is oversensed causing device malfunction. OBJECTIVE: We report an increased incidence of TIM oversensing. METHOD: Retrospective chart review. We review existing records of 18 patients who have demonstrated device malfunction with TIM oversensing. RESULTS: We have found a 1...
January 5, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29314625/long-term-pacemaker-dependency-and-impact-of-pacing-on-mortality-following-transcatheter-aortic-valve-replacement-with-the-lotus-valve
#7
Mohammad Alasti, Hashrul Rashid, Karthikeyan Rangasamy, Emily Kotschet, David Adam, Jeff Alison, Robert Gooley, Sarah Zaman
OBJECTIVES: To determine permanent pacemaker (PPM) dependency following transcatheter aortic valve replacement (TAVR) with the Lotus™ valve system (Boston Scientific), and the impact of PPM implantation on long-term morbidity and mortality. BACKGROUND: Conduction abnormalities are among the most common complications following TAVR. Limited studies have assessed pacing dependency following TAVR. METHODS: Consecutive patients (n = 166) with severe aortic stenosis who underwent TAVR with the Lotus valve system were prospectively recruited from a single-center...
January 4, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29310720/direct-comparison-of-coronary-bare-metal-vs-drug-eluting-stents-same-platform-different-mechanics
#8
Wolfram Schmidt, Peter Lanzer, Peter Behrens, Christoph Brandt-Wunderlich, Alper Öner, Hüseyin Ince, Klaus-Peter Schmitz, Niels Grabow
BACKGROUND: Drug-eluting stents (DES) compared to bare metal stents (BMS) have shown superior clinical performance, but are considered less suitable in complex cases. Most studies do not distinguish between DES and BMS with respect to their mechanical performance. The objective was to obtain mechanical parameters for direct comparison of BMS and DES. METHODS: In vitro bench tests evaluated crimped stent profiles, crossability in stenosis models, elastic recoil, bending stiffness (crimped and expanded), and scaffolding properties...
January 8, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29239229/in-vitro-evaluation-of-single-use-digital-flexible-ureteroscopes-a-practical-comparison-for-a-patient-centered-approach
#9
Giovanni Scala Marchini, Carlos A Batagello, Manoj Monga, Fábio César Miranda Torricelli, Fabio C Vicentini, Alexandre Danilovic, Miguel Srougi, Willian C Nahas, Eduardo Mazzucchi
OBJECTIVE: To compare the manufacturing and in vitro performance characteristics of two single-use flexible ureteroscopes with a permanent optical flexible ureteroscope. MATERIALS AND METHODS: Two single-use flexible ureteroscopes, LithoVue (Boston Scientific) and Pusen (1rs. generation; Zhuhai Pusen Medical Technology Company Limited, China), were tested and compared with a permanent Flex-X2 ureteroscope (Karl Storz, Germany) in terms of technical characteristics, optics, deflection mechanism, and additional parameters which could potentially affect surgical technique...
January 5, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29234529/the-effectiveness-of-ureteric-metal-stents-in-malignant-ureteric-obstructions-a-systematic-review
#10
REVIEW
Panagiotis Kallidonis, Dimitrios Kotsiris, Francesco Sanguedolce, Panteleimon Ntasiotis, Evangelos Liatsikos, Athanasios Papatsoris
Objective: To review the literature on the effectiveness, safety and long-term patency of ureteric metal mesh stents (MSs), as a variety of MSs have been used for managing malignant ureteric obstruction over the last three decades. Materials and methods: A systematic review using the search string; Ureter∗ AND (stent OR endoprosthesis) AND metal∗ was conducted on PubMed, Scopus, Web of science and Cochrane Library online databases in May 2016. Prospective, retrospective, and comparative studies including MSs were included...
December 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29223726/computed-tomography-measurement-of-the-left-atrial-appendage-for-optimal-sizing-of-the-watchman-device
#11
Bo Xu, Jorge Betancor, Kimi Sato, Serge Harb, Karim Abdur Rehman, Kunal Patel, Arnav Kumar, Paul C Cremer, Wael Jaber, L Leonardo Rodriguez, Paul Schoenhagen, Oussama Wazni
INTRODUCTION: Percutaneous left atrial appendage (LAA) occlusion is an emerging treatment option for patients with non-valvular atrial fibrillation who cannot tolerate oral anticoagulation. The Watchman device (Boston Scientific Corporation, Natick, MA, USA) is deployed at the ostium of the LAA, and an appropriately sized device is critical for successful occlusion. However, standardized imaging protocols for device sizing have not been established. OBJECTIVES: We investigated the clinical utility of a standardized imaging protocol, with pre-procedural multi-detector cardiac computed tomography (MDCT), and intra-procedural transesophageal echocardiography (TEE), for Watchman device sizing...
December 5, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/29212782/trials-of-transvaginal-mesh-devices-for-pelvic-organ-prolapse-a-systematic-database-review-of-the-us-fda-approval-process
#12
Carl J Heneghan, Ben Goldacre, Igho Onakpoya, Jeffrey K Aronson, Tom Jefferson, Annette Pluddemann, Kamal R Mahtani
INTRODUCTION: Transvaginal mesh devices are approved in the USA by the Food and Drug Administration (FDA), through the 510(k) system. However, there is uncertainty about the benefit to harm balance of mesh approved for pelvic organ prolapse. We, therefore, assessed the evidence at the time of approval for transvaginal mesh products and the impact of safety studies the FDA mandated in 2012 because of emerging harms. METHODS: We used FDA databases to determine the evidence for approval of transvaginal mesh...
December 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/29194654/safety-and-efficacy-analysis-of-one-stop-intervention-for-treating-nonvalvular-atrial-fibrillation
#13
Hongde Hu, Kaijun Cui, Jian Jiang, Hua Fu, Rui Zeng
BACKGROUND: Nonvalvular atrial fibrillation (AF) is a common arrhythmia. The treatment strategy for AF mainly includes controlling symptoms and decreasing the rate of complications. Our study aimed to evaluate the safety and efficacy of combination treatment of catheter ablation and left atrial appendage (LAA) closure (one-stop intervention) in patients with nonvalvular AF. METHODS AND RESULTS: Thirty-four patients with symptomatic AF (mean CHA2 DS2 -VASc score 4...
November 30, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29187059/bridging-observational-studies-and-randomized-experiments-by-embedding-the-former-in-the-latter
#14
Marie-Abele C Bind, Donald B Rubin
Consider a statistical analysis that draws causal inferences from an observational dataset, inferences that are presented as being valid in the standard frequentist senses; i.e. the analysis produces: (1) consistent point estimates, (2) valid p-values, valid in the sense of rejecting true null hypotheses at the nominal level or less often, and/or (3) confidence intervals, which are presented as having at least their nominal coverage for their estimands. For the hypothetical validity of these statements, the analysis must embed the observational study in a hypothetical randomized experiment that created the observed data, or a subset of that hypothetical randomized data set...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/29137967/procedural-and-thirty-day-outcomes-following-transfemoral-implantation-of-the-fully-repositionable-and-retrievable-lotus-valve-without-routine-pre-dilatation-in-a-consecutive-patient-cohort-a-single-centre-experience
#15
Neil Ruparelia, Katharine Thomas, James D Newton, Kate Grebenik, Amar Keiralla, George Krasopoulos, Rana Sayeed, Adrian P Banning, Rajesh K Kharbanda
BACKGROUND / PURPOSE: The Lotus valve (Boston Scientific, Natick, MA, USA) is a contemporary transcatheter aortic valve implantation (TAVI) device that is fully repositionable and retrievable to aid implantation and optimise procedural results. The ability to implant the device without routine pre-dilatation is another possible advantage reducing associated risks and procedure times. The aim of this study is to report procedural and 30-day outcomes following TAVI in a consecutive patient group presenting with severe symptomatic aortic stenosis with the Lotus valve system without routine pre-dilatation...
November 4, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29121693/short-term-results-of-eluvia%C3%A2-paclitaxel-eluting-stent-in-external-iliac-and-femoropopliteal-lesions
#16
Maxime Elens, Robert Verhelst, Julien Possoz, Stefano Mastrobuoni, Valerie Lacroix, Parla Astarci
INTRODUCTION: The aim of this study was to independently evaluate the real-world performances of Eluvia™ paclitaxel drug-eluting stents (DES) (Boston Scientific, Marlborough, Massachusetts) for the treatment of external iliac and femoropopliteal artery lesions. MATERIALS AND METHODS: We prospectively collected, and retrospectively reviewed, data for all patients who underwent an endovascular treatment with an Eluvia™ DES for the treatment of an external iliac or femoropopliteal lesion...
November 9, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29103847/5-year-outcomes-after-left%C3%A2-atrial%C3%A2-appendage-closure-from-the-prevail-and-protect-af-trials
#17
Vivek Y Reddy, Shephal K Doshi, Saibal Kar, Douglas N Gibson, Matthew J Price, Kenneth Huber, Rodney P Horton, Maurice Buchbinder, Petr Neuzil, Nicole T Gordon, David R Holmes
BACKGROUND: The PROTECT AF (WATCHMAN Left Atrial Appendage System for Embolic Protection in Patients With Atrial Fibrillation) trial demonstrated that left atrial appendage closure (LAAC) with the Watchman device (Boston Scientific, St. Paul, Minnesota) was equivalent to warfarin for preventing stroke in atrial fibrillation, but had a high rate of complications. In a second randomized trial, PREVAIL (Evaluation of the WATCHMAN LAA Closure Device in Patients With Atrial Fibrillation Versus Long Term Warfarin Therapy), the complication rate was low...
November 4, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29102375/-male-neurogenic-stress-urinary-incontinence-treated-by-artificial-urinary-sphincter-ams-800%C3%A2-boston-scientific-boston-usa-very-long-term-results-25%C3%A2-years
#18
C Guillot-Tantay, E Chartier-Kastler, P Mozer, M-O Bitker, F Richard, V Ambrogi, P Denys, P Léon, V Phé
OBJECTIVE: The aim of the study was to report the very long-term functional outcomes of artificial urinary sphincter (AUS) in male neurological patients. MATERIAL AND METHODS: Male neurological patients diagnosed with stress urinary incontinence due to sphincter deficiency and undergoing AUS (AMS 800(®)) implantation between 1985 and 1992 were enrolled. Continence, defined by no pad/condom usage, explantation and revision rates were reported. RESULTS: Fourteen patients with a median age of 27...
November 1, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/29102362/drug-eluting-stents-in-elderly-patients-with-coronary-artery-disease-senior-a-randomised-single-blind-trial
#19
Olivier Varenne, Stéphane Cook, Georgios Sideris, Sasko Kedev, Thomas Cuisset, Didier Carrié, Thomas Hovasse, Philippe Garot, Rami El Mahmoud, Christian Spaulding, Gérard Helft, José F Diaz Fernandez, Salvatore Brugaletta, Eduardo Pinar-Bermudez, Josepa Mauri Ferre, Philippe Commeau, Emmanuel Teiger, Kris Bogaerts, Manel Sabate, Marie-Claude Morice, Peter R Sinnaeve
BACKGROUND: Elderly patients regularly receive bare-metal stents (BMS) instead of drug-eluting stents (DES) to shorten the duration of double antiplatelet therapy (DAPT). The aim of this study was to compare outcomes between these two types of stents with a short duration of DAPT in such patients. METHODS: In this randomised single-blind trial, we recruited patients from 44 centres in nine countries. Patients were eligible if they were aged 75 years or older; had stable angina, silent ischaemia, or an acute coronary syndrome; and had at least one coronary artery with a stenosis of at least 70% (≥50% for the left main stem) deemed eligible for percutaneous coronary intervention (PCI)...
October 31, 2017: Lancet
https://www.readbyqxmd.com/read/29101557/uncomplicated-common-bile-duct-stone-removal-guided-by-cholangioscopy-versus-conventional-endoscopic-retrograde-cholangiopancreatography
#20
Wiriyaporn Ridtitid, Thanawat Luangsukrerk, Phonthep Angsuwatcharakon, Panida Piyachaturawat, Prapimphan Aumpansub, Cameron Hurst, Roongruedee Chaiteerakij, Pradermchai Kongkam, Rungsun Rerknimitr
BACKGROUND: Although previous studies have reported the possibility of therapeutic ERCP without fluoroscopy, more robust documentation of fluoroscopy-free common bile duct stone (CBDS) clearance is needed. Technically, "digital cholangioscopy" (DCS) may be used to confirm CBDS clearance. We aimed to compare the feasibility, safety, and radiation exposure between patients with CBDS undergoing stone removal by DCS and conventional ERCP (cERCP). METHODS: Fifty (50) consecutive patients with a CBDS size < 15 mm underwent DCS (SpyGlass DS Direct Visualization System, Boston Scientific, Marlboro, MA, USA) between December 2015 and October 2016...
November 3, 2017: Surgical Endoscopy
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