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Boston scientific

Niklas Schofer, Florian Deuschl, Gerhard Schön, Moritz Seiffert, Matthias Linder, Andreas Schaefer, Johannes Schirmer, Edith Lubos, Hermann Reichenspurner, Stefan Blankenberg, Lenard Conradi, Ulrich Schäfer
BACKGROUND: The balloon-expandable Sapien 3 (Edwards Lifesciences, Irvine, CA, USA) and the mechanically-expandable Lotus valve (Boston Scientific, Marlborough, MA, USA) are established devices for transcatheter aortic valve implantation. We sought to compare both transcatheter heart valves (THV) under consideration of the extent of THV landing zone calcification. METHODS: This retrospective analysis includes consecutive patients with severe aortic stenosis treated with Sapien 3 (S3; n=212) or Lotus (n=61) THV via transfemoral access...
March 13, 2018: Journal of Cardiology
Philip Gc Chan, Gerard S Goh
PURPOSE: The AngioJet Hemolytic Thrombectomy Device "AngioJet" (Boston Scientific, Malborough, MA, USA) is a rheolytic thrombectomy device that can be used in the treatment of hemodialysis arteriovenous fistula and graft thrombosis. We aim to appraise the current evidence on AngioJet thrombectomy in hemodialysis vascular access thrombosis, and to determine its safety, including complications and efficacy. MATERIALS AND METHODS: An electronic literature search was performed on the MEDLINE and Embase databases...
March 1, 2018: Journal of Vascular Access
Ignacio Cruz-Gonzalez, Monica Fuertes-Barahona, Jose C Moreno-Samos, Rocio Gonzalez-Ferreiro, Yan Yin Lam, Pedro L Sanchez
Since the first percutaneous left atrial appendage occlusion (LAAO), many studies have shown the safety and efficacy of this technique to prevent embolic strokes in nonvavular atrial fibrillation. The design, characteristics, and clinical data of the most frequently used devices for LAAO are reviewed, including the Amplatzer cardiac plug and Amulet (Abbott Vascular), the Watchman (Boston Scientific), and the LARIAT device (SentreHEART). Similarly, newer closer devices, such as Ultraseal (Cardia), LAmbre (Lifetech), and Coherex WaveCrest (Johnson & Johnson), are also discussed...
April 2018: Interventional Cardiology Clinics
Paolo Zocca, Marlies M Kok, Kenneth Tandjung, Peter W Danse, Gillian A J Jessurun, Raymond W M Hautvast, K Gert van Houwelingen, Martin G Stoel, Alexander R Schramm, R Melvyn Tjon Joe Gin, Frits H A F de Man, Marc Hartmann, J Hans W Louwerenburg, Gerard C M Linssen, Marije M Löwik, Carine J M Doggen, Clemens von Birgelen
OBJECTIVES: The study sought to evaluate for the first time the 5-year outcomes after treating an all-comers population with newer-generation cobalt chromium-based Resolute Integrity zotarolimus-eluting stents (ZES) (Medtronic, Santa Rosa, California) versus platinum chromium-based PROMUS Element everolimus eluting stents (EES) (Boston Scientific, Natick, Massachusetts). BACKGROUND: The DUTCH PEERS (TWENTE II) (DUrable polymer-based sTent CHallenge of Promus ElemEnt versus ReSolute integrity: TWENTE II) trial is a randomized, multicenter, single-blinded, investigator-initiated all-comers trial that found at its main analysis similar 1-year safety and efficacy for both drug-eluting stents...
March 12, 2018: JACC. Cardiovascular Interventions
Nishant Patel, Manoj Monga
INTRODUCTION: Ureteral access sheaths (UAS) facilitate flexible ureteroscopy in the treatment of urolithiasis. The physical properties of UAS vary by manufacturer and model. We compared three new UAS: Glideway (GW, Terumo, 11/13Fr, 12/14Fr), Pathway (PW, Terumo 12/14F) and Navigator HD (NHD, Boston Scientific, 11/13Fr, 12/14Fr) in the domains of safety characteristics, positioning characteristics, lubricity and radioopacity. MATERIALS AND METHODS: In vitro testing of the three UAS included safety testing-tip perforation force, sheath edge deformation and dilator extraction forces...
March 1, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Darius Dabir, Andreas Feisst, Daniel Thomas, Julian A Luetkens, Carsten Meyer, Ana Kardulovic, Matthias Menne, Ulrich Steinseifer, Hans H Schild, Daniel L R Kuetting
PURPOSE: Iliocaval obstruction is a substantial contributor to chronic venous insufficiency and is increasingly being treated endovascularly with angioplasty and stent placement. Utilization of an appropriate stent for treatment is pivotal; however, until today, mechanical properties of venous stents remain unknown. MATERIALS AND METHODS: We analyzed the radial resistive force, the chronic outward force, as well as the crush resistance of seven stent models [Zilver Vena (Cook, Bjaeverskov, Denmark), Sinus Venous, Sinus Obliquus and Sinus XL Flex (Optimed, Ettlingen, Germany), Vici (Veniti; St...
February 28, 2018: Cardiovascular and Interventional Radiology
Mark Olfson, Tony B Amos, Carmela Benson, Jacquelyn McRae, Steven C Marcus
BACKGROUND: Although the clinical and health economic characteristics of commercially insured adults with treatment-resistant depression (TRD) have been well characterized, little is known about TRD in the Medicaid population. OBJECTIVE: To describe clinical and health economic characteristics of adult Medicaid beneficiaries with TRD. METHODS: Retrospective longitudinal cohort analyses were performed with Truven Health MarketScan Medicaid Database (2008-2014), focusing on adults with major depressive disorder (MDD) following an index antidepressant prescription...
March 2018: Journal of Managed Care & Specialty Pharmacy
Shu C Chang, Kristen K Patton, Melissa R Robinson, Jeanne E Poole, Jordan M Prutkin
BACKGROUND: The subcutaneous implantable cardioverter-defibrillator (S-ICD) requires pre-implant screening to ensure appropriate sensing and reduce risk of inappropriate shocks. Screening can be performed using either an ICD programmer or a 12 lead ECG machine. It is unclear whether differences in signal filtering and digital sampling change the screening success rate. METHODS: Subjects were recruited if they had a transvenous single lead ICD without pacing requirements or were candidates for a new ICD...
February 24, 2018: Pacing and Clinical Electrophysiology: PACE
Graeme Prosperi-Porta, Gregory Schnell, Jillian Colbert, Angela Franko, Stephen B Wilton, Vikas P Kuriachan
Left atrial appendage occlusion devices are an alternative to oral anticoagulation in patients with nonvalvular atrial fibrillation who are at risk of ischemic stroke. Thromboprophylaxis after implantation is recommended, but the optimal regimen is unknown. We report a clinicopathologic case in which thrombus adherent to an incompletely endothelialized WATCHMAN device (Boston Scientific, Marlborough, MA) resulted in multiple thromboembolic events, contributing to a fatal outcome. This case illustrates uncertainties regarding the device's endothelialization process...
March 2018: Canadian Journal of Cardiology
Anne-Floor B E Quast, Fleur V Y Tjong, Brendan E Koop, Arthur A M Wilde, Reinoud E Knops, Martin C Burke
Aims: The development of communicating modular cardiac rhythm management systems relies on effective intrabody communication between a subcutaneous implantable cardioverter-defibrillator (S-ICD) and a leadless pacemaker (LP), using conducted communication. Communication success is affected by the LP and S-ICD orientation. This study is designed to evaluate the orientation of the LP and S-ICD in canine subjects and measure success and threshold of intrabody communication. To gain more human insights, we will explore device orientation in LP and S-ICD patients...
February 14, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Jayson R Baman, Moussa Mansour, E Kevin Heist, David T Huang, Yitschak Biton
Atrial fibrillation is commonly coexistent with heart failure, and the management of the heart failure patient would be incomplete without an appreciation for atrial fibrillation management. There are many complications associated with oral anticoagulation in the prevention of stroke related to atrial fibrillation. In recent years, the advent of several percutaneous left atrial appendage (LAA) occlusion/closure strategies has sought to provide an alternative treatment modality. Here, we systematically review the published literature to investigate the efficacy and safety of percutaneous LAA occlusion/closure devices...
February 17, 2018: Heart Failure Reviews
Mark Webster, Sanjeevan Pasupati, Nigel Lever, Martin Stiles
OBJECTIVE: This first-in-human study evaluated the safety and technical feasibility of the Tempo temporary cardiac pacing lead (BioTrace Medical), which includes a novel fixation mechanism and soft tip. BACKGROUND: Complications of temporary pacing leads include dislodgment, arrhythmias, and ventricular perforation. Temporary pacing applications have increased with transcatheter aortic valve replacement (TAVR) growth, for rapid pacing during balloon valvuloplasty (BAV) and valve deployment, and for periprocedural bradyarrhythmia support...
February 15, 2018: Journal of Invasive Cardiology
Robert Larbig, Markus Bettin, Lukas J Motloch, Alicia Fischer, Niklas Bode, Gerrit Frommeyer, Florian Reinke, Andreas Loeher, Lars Eckardt, Julia Köbe
Inappropriate shocks are a feared complication after implantable cardioverter-defibrillator (ICD) implantation and have a tremendous impact on quality of life. Inappropriate shocks in patients with subcutaneous ICD (S-ICD®, Boston Scientific, Marlborough, MA, USA) have various underlying causes. This review summarizes the current literature on this topic and lists possible treatment options.
February 12, 2018: Herzschrittmachertherapie & Elektrophysiologie
Johan L Heemskerk, Mark Altena, Diederik H R Kempen
We have read with great interest the article by Minsk et al. in Scoliosis and Spinal Disorders. However, the authors reported a conclusion that is based on possible selection bias in surgical candidates. Physicians are trained in the interpretation of scientific articles; however, not everybody is able to do this. Especially in open access journals, a biased conclusion may have big consequences and may be misleading for patients and family members who can read these articles for free on the internet.
2018: Scoliosis and Spinal Disorders
Rebecca J Howell, Melissa A Schopper, John Paul Giliberto, Ryan M Collar, Sid M Khosla
OBJECTIVE: To review experience, safety, and cost of office-based esophageal dilation in patients with history of head and neck cancer (HNCA). METHODS: The medical records of patients undergoing esophageal dilation in the office were retrospectively reviewed between August 2015 and May 2017. Patients were given nasal topical anesthesia. Next, a transnasal esophagoscopy (TNE) was performed. If the patient tolerated TNE, we proceeded with esophageal dilation using Seldinger technique with the CRE™ Boston Scientific (Boston Scientific Corp...
February 8, 2018: Laryngoscope
Xuehua Ke, Abhishek Kavati, Debra Wertz, Qing Huang, Liya Wang, Vincent J Willey, Judith J Stephenson, Benjamin Ortiz, Brandee Paknis, Jonathan A Bernstein, Lisa A Beck
BACKGROUND: Omalizumab is indicated for the management of chronic idiopathic urticaria (CIU) in patients aged 12 years or older with persistent hives that are not adequately controlled by H1 antihistamines. While its safety and efficacy in CIU patients have been evaluated in multiple clinical trials, real-world use of omalizaumab in CIU has not been well characterized. OBJECTIVE: To assess demographics, clinical characteristics, and treatment patterns of CIU patients who initiated omalizumab to better understand the usage of this agent in CIU management in the real world...
December 19, 2017: Journal of Managed Care & Specialty Pharmacy
J Eli Robins, Ihab Ragai, Dean J Yamaguchi
OBJECTIVE: Inferior vena cava (IVC) filters are used in patients at risk for pulmonary embolism who cannot be anticoagulated. Unfortunately, these filters are not without risk, and complications include perforation, migration, and filter fracture. The most prevalent complication is filter perforation of the IVC, with incidence varying among filter models. To our knowledge, the mechanical properties of IVC filters have not been evaluated and are not readily available through the manufacturer...
January 30, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
Cismaru Gabriel, Mihai Puiu, Radu Rosu, Lucian Muresan, Raluca Rancea, Gabriel Gusetu, Dana Pop, Dumitru Zdrenghea
Arrhythmogenic right ventricular dysplasia/cardiomyopathy is a genetic disorder characterized by fibrofattty replacement of the right ventricular myocardium. In the revised 2010 Task Force Criteria, a major criteria for ARVD/C is the presence of RV aneurysm by 2D echo. Our report demonstrates that intracardiac ultrasound can detect RV aneurysms and also focal absence of trabeculations which brings additional value to the diagnosis of ARVD/C. A 26-year-old male patient suffering from multiple sustained episodes of ventricular tachycardia was implanted with an internal cardiac defibrillator after confirmation of the disease by cardiac magnetic resonance imaging...
January 2018: Oxford Medical Case Reports
Niall F Davis, Shannon McGrath, Mark Quinlan, Gregory Jack, Nathan Lawrentschuk, Damien M Bolton
PURPOSE: There are no comparative assessments on the environmental impact of endourologic instruments. We evaluated and compared the environmental impact of single-use flexible ureteroscopes with reusable flexible ureteroscopes. PATIENTS AND METHODS: An analysis of the typical life cycle of the LithoVue™ (Boston Scientific) single-use digital flexible ureteroscope and Olympus Flexible Video Ureteroscope (URV-F) was performed. To measure the carbon footprint, data were obtained on manufacturing of single-use and reusable flexible ureteroscopes and from typical uses obtained with a reusable scope, including repairs, replacement instruments, and ultimate disposal of both ureteroscopes...
February 21, 2018: Journal of Endourology
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