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https://www.readbyqxmd.com/read/28296239/stent-placement-in-the-superficial-femoral-and-proximal-popliteal-arteries-with-the-innova-self-expanding-bare-metal-stent-system
#1
Richard J Powell, Michael R Jaff, Herman Schroë, Andrew Benko, Juan Diaz-Cartelle, Stefan Müller-Hülsbeck
OBJECTIVES: The SuperNOVA trial was designed to evaluate performance of the Innova Vascular Self-Expanding Stent System (Boston Scientific, Marlborough, MA) for treating lesions in the femoropopliteal arteries. METHODS: Patients with chronic lower limb peripheral artery disease (Rutherford category 2, 3, or 4) and atherosclerotic lesions in the native superficial femoral and/or proximal popliteal artery (lengths 30-190 mm) were enrolled in this single-arm, multinational study...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28283867/postoperative-neuroimaging-analysis-of-drt-deep-brain-stimulation-revision-surgery-for-complicated-essential-tremor
#2
Volker Arnd Coenen, Balint Varkuti, Yaroslav Parpaley, Sabine Skodda, Thomas Prokop, Horst Urbach, Meng Li, Peter Christoph Reinacher
BACKGROUND: We report a patient who received conventional bilateral deep brain stimulation of the ventral intermediate nucleus of thalamus (Vim) for the treatment of medication refractory essential tremor (ET). After initial beneficial effects, therapeutic efficacy was lost due to a loss of control of his proximal trunkal and extremity tremor. The patient received successful diffusion tensor magnetic resonance imaging fiber tractographic (DTI FT)-assisted DBS revision surgery targeting the dentato-rubro-thalamic tract (DRT) in the subthalamic region (STR)...
March 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28268306/in-silico-pre-clinical-trials-for-implantable-cardioverter-defibrillators
#3
Zhihao Jiang, Houssam Abbas, Kuk Jin Jang, Marco Beccani, Jackson Liang, Sanjay Dixit, Rahul Mangharam
Regulatory authorities require that the safety and efficacy of a new high-risk medical device be proven in a Clinical Trial (CT), in which the effects of the device on a group of patients are compared to the effects of the current standard of care. Phase III trials can run for several years, cost millions of dollars, and expose patients to an unproven device. In this paper, we demonstrate how to use a large group of synthetic patients based on computer modeling to improve the planning of a CT so as to increase the chances of a successful trial for implantable cardioverter defibrillators (ICDs)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264591/lubriglide%C3%A2-sequential-ureteral-dilators-a-safe-and-effective-method-of-ureteral-dilation
#4
Christopher Ryan Mitchell, Joseph M Kuebker, Benjamin McCormick, S Duke Herrell, Nicole L Miller
INTRODUCTION: During ureteroscopy, ureteral dilation may be required to increase the likelihood of accessing the ureter to complete the procedure. Thus, we sought to assess the safety and efficacy of using Lubriglide sequential ureteral dilators® (Boston Scientific) to promote primary ureteroscopy, without need for prestenting. PATIENTS AND METHODS: Retrospective review was performed of a consecutive series of patients undergoing primary ureteroscopy by a single surgeon (NLM) from 2011 to 2013...
March 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28258051/transcatheter-heart-valve-selection-and-permanent-pacemaker-implantation-in-patients-with-pre-existent-right-bundle-branch-block
#5
Lennart van Gils, Didier Tchetche, Thibault Lhermusier, Masieh Abawi, Nicolas Dumonteil, Ramón Rodriguez Olivares, Javier Molina-Martin de Nicolas, Pieter R Stella, Didier Carrié, Peter P De Jaegere, Nicolas M Van Mieghem
BACKGROUND: Right bundle branch block is an established predictor for new conduction disturbances and need for a permanent pacemaker (PPM) after transcatheter aortic valve replacement. The aim of the study was to evaluate the absolute rates of transcatheter aortic valve replacement related PPM implantations in patients with pre-existent right bundle branch block and categorize for different transcatheter heart valves. METHODS AND RESULTS: We pooled data on 306 transcatheter aortic valve replacement patients from 4 high-volume centers in Europe and selected those with right bundle branch block at baseline without a previously implanted PPM...
March 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28258018/left-sided-varicocele-as-a-rare-presentation-of-may-thurner-syndrome
#6
J R Stern, V I Patel, D E Cafasso, N B Gentile, A J Meltzer
INTRODUCTION: May-Thurner syndrome (MTS), the clinical sequelae of left iliac vein compression between the right iliac artery and the spine, is an accepted cause of lower extremity edema and venous thromboembolism. It is more prevalent in younger women, and typically presents with left lower extremity symptoms. Atypical presentations such as right-sided symptoms, chronic pelvic pain, and even fatal venous rupture have been reported. Here we describe iliac vein compression presenting as a chronic left-sided testicular varicocele...
February 28, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28256020/left-atrial-anatomy-and-patient-related-factors-associated-with-adverse-outcomes-with-the-watchman-device-a-real-world-experience
#7
Shishir Murarka, Mohamad Lazkani, Soundos Moualla, Divya Ratan Verma, Ashish Pershad
OBJECTIVE: This study sought to identify patient and left atrial morphology specific factors associated with early complications for left atrial appendage occlusion with the Watchman™ (Boston Scientific, Natick, MA) device. BACKGROUND: Oral anticoagulation (OAC) is recommended for patients with atrial fibrillation, however, long-term OAC compliance is poor. In randomized control trials, the Watchman™ device has demonstrated superiority over OAC with warfarin for all cause and cardiovascular mortality and hemorrhagic stroke...
March 2, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28237561/evolution-of-endoscopic-treatment-of-sleeve-gastrectomy-leaks-from-partially-covered-to-long-fully-covered-stents
#8
Fabio Garofalo, Maxime Noreau-Nguyen, Ronald Denis, Henri Atlas, Pierre Garneau, Radu Pescarus
BACKGROUND: Laparoscopic sleeve gastrectomy (SG) has become a widely accepted option in the treatment of morbid obesity. Gastric leaks after SG occur in .9%-2.2% of the patients, mostly at the gastroesophageal junction. The current treatment algorithm includes drainage, antibiotics, nutritional support, and endoluminal control. OBJECTIVES: Our hypothesis is that long, fully covered stents represent a safe, effective solution for SG leaks. SETTING: University hospital...
December 26, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28226465/in-silico-pre-clinical-trials-for-implantable-cardioverter-defibrillators
#9
Zhihao Jiang, Houssam Abbas, Kuk Jin Jang, Marco Beccani, Jackson Liang, Sanjay Dixit, Rahul Mangharam, Zhihao Jiang, Houssam Abbas, Kuk Jin Jang, Marco Beccani, Jackson Liang, Sanjay Dixit, Rahul Mangharam, Jackson Liang, Marco Beccani, Sanjay Dixit, Rahul Mangharam, Houssam Abbas, Zhihao Jiang, Kuk Jin Jang
Regulatory authorities require that the safety and efficacy of a new high-risk medical device be proven in a Clinical Trial (CT), in which the effects of the device on a group of patients are compared to the effects of the current standard of care. Phase III trials can run for several years, cost millions of dollars, and expose patients to an unproven device. In this paper, we demonstrate how to use a large group of synthetic patients based on computer modeling to improve the planning of a CT so as to increase the chances of a successful trial for implantable cardioverter defibrillators (ICDs)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223056/transcatheter-aortic-valve-in-valve-implantation-using-lotus-valve-for-failed%C3%A2-surgical-bioprostheses
#10
Fausto Castriota, Roberto Nerla, Antonio Micari, Caterina Cavazza, Francesco Bedogni, Luca Testa, Matteo Montorfano, Mauro Del Giglio, Alberto Cremonesi
BACKGROUND: Patients with failed bioprostheses are an increasing population at high risk for redo surgery. Valve-in-valve transcatheter aortic valve implantation is a promising alternative but a limited number of first-generation devices have proven efficacy in all cases. METHODS: Patients with degenerated bioprostheses at high risk for redo surgery were included in the registry after being assigned to valve-in-valve intervention by a local heart team. Main basal and follow-up data (at 1 month and 6 months) of patients undergoing valve-in-valve transcatheter aortic valve implantation with the Lotus valve system (Boston Scientific, Natick, MA) in three high-volume Italian centers were entered in the registry...
February 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28217223/long-term-reliability-of-sweet-tip-type-screw-in-leads
#11
Asuka Takano, Gaku Sekita, Minako Watanabe, Hiroshi Mukaida, Sayaka Komatsu, Haruna Tabuchi, Hidemori Hayashi, Takashi Tokano, Masataka Sumiyoshi, Yuji Nakazato, Hiroyuki Daida
BACKGROUND: Active fixation leads have provided stable atrial and ventricular pacing; however, long-term follow-up data have not been satisfactory. The purpose of this study was to investigate the long-term reliability of active fixation leads and their electrical characteristic stability. METHODS: A total of 1196 pacing leads were implanted in 830 patients consecutively between 2002 and 2013. In this retrospective study, we were able to trace 1092 leads in 750 patients to investigate the prognosis of implanted leads...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28191713/tissue-characterization-and-phenotype-classification-in-patients-presenting-with-acute-myocardial-infarction-insights-from-the-iwonder-study
#12
Cristiano F Souza, Akiko Maehara, Gary S Mintz, Mitsuaki Matsumura, Claudia M R Alves, Antonio Carlos Carvalho, Adriano Caixeta
OBJECTIVES: We sought to assess a new modality of radiofrequency intravascular ultrasound (IVUS) called iMAP-IVUS (Boston Scientific, Santa Clara, California) during the evaluation of patients presenting with high-risk acute coronary syndromes. BACKGROUND: There are limited data on plaque tissue characterization and phenotype classification using iMAP-IVUS. METHODS: In the iWonder study patients presenting with ST-elevation myocardial infarction (STEMI) or non-STEMI underwent three-vessel grayscale IVUS and iMAP-IVUS tissue characterization prior to percutaneous intervention...
February 13, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28153614/internal-maxillary-artery-preoperative-embolization-using-nbca-and-pushable-coils-for-temporomandibular-joint-ankylosis-surgery-technical-note
#13
Yazan J Alderazi, Darshan Shastri, John Wessel, Melvin Mathew, Tareq Kass-Hout, Shahid R Aziz, Charles J Prestigiacomo, Chirag D Gandhi
INTRODUCTION: Temporomandibular joint (TMJ) ankylosis causes disability through impaired digestion, mastication, speech and appearance. Surgical treatment increases range of motion with resultant functional improvement. However, substantial perioperative blood loss can occur, up to three liters, if the internal maxillary artery (IMAX) is injured as it traverses the ankylotic mass. Achieving hemostasis is difficult due to limited proximal IMAX access and poor visualization. Our aim is to investigate the technical feasibility and preliminary safety of preoperative IMAX embolization in patients undergoing TMJ ankylosis surgery...
January 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28149625/five-years-of-keeping-a-watch-on-the-left-atrial-appendage-how-has-the-watchman-fared
#14
COMMENT
Mohammad-Ali Jazayeri, Venkat Vuddanda, Valay Parikh, Madhav Lavu, Donita Atkins, Y Madhu Reddy, Jayant Nath, Dhanunjaya R Lakkireddy
Left atrial appendage closure (LAAC) is a promising site-directed therapy for stroke prevention in patients with non-valvular atrial fibrillation (AF) who are ineligible or contraindicated for long-term oral anticoagulation. A variety of LAAC modalities are available, including percutaneous endocardial occluder devices such as WATCHMAN(TM) (Boston Scientific Corp., Marlborough, MA, USA), and an ever-increasing body of evidence is helping to define the optimal use of each technique. Similarly increased experience with LAAC has revealed challenges such as device-related thrombi and peri-device leaks for which the long-term significance and appropriate management are areas of active investigation...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28104422/tipless-nitinol-stone-baskets-comparison-of-penetration-force-radial-dilation-force-opening-dynamics-and-deflection
#15
Nishant Patel, Arash Akhavein, Bryan Hinck, Rajat Jain, Manoj Monga
OBJECTIVE: To evaluate 5 commercially available tipless nitinol baskets (2.2F) in 4 performance factors: penetration force, radial dilation force, opening dynamics, and deflection limitation. MATERIALS AND METHODS: The 2.2F Coloplast Dormia No-Tip, 1.5F Sacred Heart Medical Halo, 2.2F Cook NCircle Nitinol Tipless Stone Extractor, 1.9F Bard SkyLite Tipless Nitinol Basket, and 1.9F Boston Scientific Zero Tip Nitinol Stone Retrieval Basket were tested for penetration force (safety metric), radial dilation force (functional metric for ureteral calculi), and opening or closing dynamics...
January 16, 2017: Urology
https://www.readbyqxmd.com/read/28097472/proceedings-of-the-third-international-molecular-pathological-epidemiology-mpe-meeting
#16
REVIEW
Peter T Campbell, Timothy R Rebbeck, Reiko Nishihara, Andrew H Beck, Colin B Begg, Alexei A Bogdanov, Yin Cao, Helen G Coleman, Gordon J Freeman, Yujing J Heng, Curtis Huttenhower, Rafael A Irizarry, N Sertac Kip, Franziska Michor, Daniel Nevo, Ulrike Peters, Amanda I Phipps, Elizabeth M Poole, Zhi Rong Qian, John Quackenbush, Harlan Robins, Peter K Rogan, Martha L Slattery, Stephanie A Smith-Warner, Mingyang Song, Tyler J VanderWeele, Daniel Xia, Emily C Zabor, Xuehong Zhang, Molin Wang, Shuji Ogino
Molecular pathological epidemiology (MPE) is a transdisciplinary and relatively new scientific discipline that integrates theory, methods, and resources from epidemiology, pathology, biostatistics, bioinformatics, and computational biology. The underlying objective of MPE research is to better understand the etiology and progression of complex and heterogeneous human diseases with the goal of informing prevention and treatment efforts in population health and clinical medicine. Although MPE research has been commonly applied to investigating breast, lung, and colorectal cancers, its methodology can be used to study most diseases...
February 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28086805/the-safety-of-introducing-a-new-generation-tavr-device-one-departments-experience-from-introducing-a-second-generation-repositionable-tavr
#17
Henrik Bjursten, Shahab Nozohoor, Malin Johansson, Igor Zindovic, Carl-Fredrik Appel, Johan Sjögren, Magnus Dencker, Göran Olivecrona, Jan Harnek, Sasha Koul, Ted Feldman, Michael J Reardon, Matthias Götberg
BACKGROUND: In the evolving field of transcatheter aortic valve replacements a new generation of valves have been introduced to clinical practice. With the complexity of the TAVR procedure and the unique aspects of each TAVR device, there is a perceived risk that changing or adding a new valve in a department could lead to a worse outcome for patients, especially during the learning phase. The objective was to study the safety aspect of introducing a second generation repositionable transcatheter valve (Boston Scientific Lotus valve besides Edwards Sapien valve) in a department...
January 13, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28073884/pacemaker-detected-severe-sleep-apnea-predicts-new-onset-atrial-fibrillation
#18
Andrea Mazza, Maria Grazia Bendini, Raffaele De Cristofaro, Mariolina Lovecchio, Sergio Valsecchi, Giuseppe Boriani
AIMS: Sleep apnea (SA) diagnosed on overnight polysomnography is a risk factor for atrial fibrillation (AF). Advanced pacemakers are now able to monitor intrathoracic impedance for automatic detection of SA events. METHODS AND RESULTS: We enrolled 160 consecutive recipients of a dual-chamber pacemaker endowed with the ApneaScan algorithm (Boston Scientific). If the pacemaker-measured Respiratory Disturbance Index was ≥30 episodes per hour for at least one night during the first week after implantation, SA was defined as severe...
January 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28070890/the-role-of-conventional-and-right-sided-ecg-screening-for-subcutaneous-icd-in-a-tetralogy-of-fallot-population
#19
RANDOMIZED CONTROLLED TRIAL
Pau Alonso, Joaquín Osca, Oscar Cano, Pedro Pimenta, Ana Andrés, Jaime Yagüe, José Millet, Joaquín Rueda, María José Sancho-Tello
BACKGROUND: Information regarding suitability for subcutaneous implantable cardioverter-defibrillator (S-ICD) implant in tetralogy of Fallot (ToF) population is scarce and needs to be further explored. THE AIMS OF OUR STUDY WERE: (1) to determine the proportion of patients with ToF eligible for S-ICD, (2) to identify the optimal sensing vector in ToF patients, (3) to test specifically the eligibility for S-ICD with right-sided screening, and (4) to compare with the proportion of eligible patients in a nonselected ICD population...
February 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28057045/validation-of-a-new-method-for-the-endoscopic-measurement-of-post-bariatric-gastric-outlet-using-a-standard-guidewire-an-observer-agreement-study
#20
Luiz Gustavo de Quadros, Manoel Dos Passos Galvão Neto, Josemberg Marins Campos, Roberto Luiz Kaiser Junior, Eduardo Grecco, Mario Flamini Junior, Marcelo Falcao de Santana, Idiberto Jose Zotarelli Filho, Adriano Augusto Tomas Vasconcelos Almeida Alexandre
BACKGROUND AND AIMS: Between 10 and 20% of all patients undergoing bariatric surgery procedures regain weight secondary to a gastrojejunostomy enlargement. The aim of this study was to validate the interobserver agreement while measuring gastric outlet diameters using a new standard guidewire. METHODS: We selected thirty-five videos of consecutive endoscopic procedures on patients undergoing esophagogastroduodenoscopy after a Roux-en-Y gastric bypass procedure. All videos were evaluated by four raters: two expert endoscopists and two trainees...
January 3, 2017: BMC Research Notes
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