keyword
MENU ▼
Read by QxMD icon Read
search

Boston scientific

keyword
https://www.readbyqxmd.com/read/28734913/uncovered-culprit-plaque-ruptures-in-patients-with-st-segment-elevation-myocardial-infarction-assessed-by-optical-coherence-tomography-and-intravascular-ultrasound-with-imap
#1
Mikkel Hougaard, Henrik Steen Hansen, Per Thayssen, Lisbeth Antonsen, Lisette Okkels Jensen
OBJECTIVES: This study assessed the incidence and course of healing of uncovered plaque ruptures (PR) following primary percutaneous coronary intervention. BACKGROUND: The infarct-related occlusion is frequently located at the lesion site with maximum thrombus burden, whereas the culprit PR may be situated more proximally or distally. METHODS: Uncovered PR in segments adjacent to the stent were identified by optical coherence tomography and intravascular ultrasound using iMap (Boston Scientific, Marlborough, Massachusetts) within 48 h and after 12 months...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28706126/transfemoral-transcatheter-aortic-valve-in-valve-implantation-for-aortic-valve-bioprosthesis-failure-with-the-fully-repositionable-and-retrievable-lotus-valve-a-single-center-experience
#2
Neil Ruparelia, Katharine Thomas, James D Newton, Kate Grebenik, Amar Keiralla, George Krasopoulos, Rana Sayeed, Adrian P Banning, Rajesh K Kharbanda
OBJECTIVE: To report a first case series of the Lotus valve (Boston Scientific) for the treatment of surgical aortic bioprosthesis failure. BACKGROUND: Valve-in-valve (VIV) transcatheter aortic valve implantation (TAVI) is an established management option for surgical aortic bioprosthesis failure. Although TAVI has proven efficacious, complications relating to suboptimal valve implantation have been reported in approximately 5% of patients. The Lotus valve is fully repositionable and retrievable, and therefore enables complete assessment of valve function prior to definitive deployment...
July 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28702117/balloon-angioplasty-for-intracranial-atherosclerotic-disease-a-multicenter-study
#3
Lakshmi Sudha Prasanna Karanam, Mukesh Sharma, Anand Alurkar, Sridhar Reddy Baddam, Vijaya Pamidimukkala, Raghavasarma Polavarapu
AIM: To evaluate the role and efficacy of the balloon angioplasty in intracranial atherosclerotic disease (ICAD) in patients who presented with acute stroke due to vessel occlusion and in patients with symptomatic disease despite optimum medical management. METHODS: From 2013 to 2016, a total of 39 patients (24 males and 15 females with a mean age of 64.5 years) underwent balloon angioplasty over a period of 2 years and 8 months in three different institutions in India...
June 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/28667807/improved-algorithm-for-ostium-size-assessment-in-watchman-left-atrial-appendage-occlusion-using-three-dimensional-echocardiography
#4
Maximilian Schmidt-Salzmann, Felix Meincke, Felix Kreidel, Tobias Spangenberg, Alexander Ghanem, Karl-Heinz Kuck, Martin W Bergmann
AIMS: Correct sizing of the ostium is a crucial step in left atrial appendage (LAA) occlusion procedures. However, unfavorable anatomy of the ostium often complicates the assessment of the true ostium diameter. We hypothesized that area-derived diameter (ADD) and perimeter-derived diameter (PDD) from three-dimensional transesophageal echocardiogram (3D-TEE) can facilitate this step of the procedure as compared with two-dimensional (2D) measurements. METHODS AND RESULTS: For 55 patients within the ALSTER-LAA registry, retrospective analysis of PDD and ADD was correlated with 2D measurements used during the procedure to ascertain correct size of the Watchman device (Boston Scientific)...
July 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28650003/american-academy-of-neurology-69th-annual-meeting-april-22-28-2017-boston-massachusetts-usa
#5
C Dulsat
The Annual Meeting of the American Academy of Neurology (AAN) is the largest conference convening neurology professionals from all over the world to share and discuss the latest breakthroughs in neurology treatment. The conference covers basic scientific research to clinical application through a wide range and interesting programs. This report covers some of the therapeutic highlights presented during the conference.
May 2017: Drugs of Today
https://www.readbyqxmd.com/read/28646406/podocytes-and-the-quest-for-precision-medicines-for-kidney-diseases
#6
REVIEW
Peter Mundel
In this review, I describe a 30-year journey in the quest for precision medicines for patients with kidney diseases. In 1987, when I started my reseach career, most scientists studying glomerular disease biology were focused on mesangial cells. The crucial role of the podocyte in many kidney diseases characterized by proteinuria, including focal segmental glomerulosclerosis (FSGS) and diabetic nephropathy, had not yet been recognized. We were not aware of genetic causes or drivers of kidney diseases nor of molecular markers and cell culture systems for mechanistic studies of podocyte biology...
June 23, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28641846/conduction-abnormalities-and-permanent%C3%A2-pacemaker-implantation-after-transcatheter-aortic-valve-replacement-using-the-repositionable-lotus-device-the-united-kingdom-experience
#7
Rajiv Rampat, M Zeeshan Khawaja, Roland Hilling-Smith, Jonathan Byrne, Philip MacCarthy, Daniel J Blackman, Arvindra Krishnamurthy, Ashan Gunarathne, Jan Kovac, Adrian Banning, Raj Kharbanda, Sami Firoozi, Stephen Brecker, Simon Redwood, Vinayak Bapat, Michael Mullen, Suneil Aggarwal, Ganesh Manoharan, Mark S Spence, Saib Khogali, Maureen Dooley, James Cockburn, Adam de Belder, Uday Trivedi, David Hildick-Smith
OBJECTIVES: The authors report the incidence of pacemaker implantation up to hospital discharge and the factors influencing pacing rate following implantation of the LOTUS bioprosthesis (Boston Scientific, Natick, Massachusetts) in the United Kingdom. BACKGROUND: Transcatheter aortic valve replacement (TAVR) is associated with a significant need for permanent pacemaker implantation. Pacing rates vary according to the device used. The REPRISE II (Repositionable Percutaneous Replacement of Stenotic Aortic Valve Through Implantation of Lotus Valve System) trial reported a pacing rate of 29% at 30 days after implantation of the LOTUS device...
June 26, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28639387/determining-the-orientation-angle-of-directional-leads-for-deep-brain-stimulation-using-computed-tomography-and-digital-x-ray-imaging-a-phantom-study
#8
Alexander Sitz, Mauritius Hoevels, Alexandra Hellerbach, Andreas Gierich, Klaus Luyken, Till A Dembek, Martin Klehr, Jochen Wirths, Veerle Visser-Vandewalle, Harald Treuer
PURPOSE: Orientating the angle of directional leads for deep brain stimulation (DBS) in an axial plane introduces a new degree of freedom that is indicated by embedded anisotropic directional markers. Our aim was to develop algorithms to determine lead orientation angles from computed tomography (CT) and stereotactic x-ray imaging using standard clinical protocols, and subsequently assess the accuracy of both methods. METHODS: In CT the anisotropic marker artifact was taken as a signature of the lead orientation angle and analyzed using discrete Fourier transform of circular intensity profiles...
June 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28617887/peroral-cholangiopancreatoscopy-with-the-spyglass%C3%A2-system-what-do-we-know-10-years-later
#9
REVIEW
Pedro Pereira, Armando Peixoto, Patrícia Andrade, Guilherme Macedo
Smaller endoscopes and catheters have been developed that permit direct visualization of the bile and pancreatic ducts (cholangioscopy and pancreatoscopy, respectively). These endoscopes and catheters are passed through the working channel of a standard therapeutic duodenoscope during endoscopic retrograde cholangiopancreatography (ERCP). The SpyGlass Direct Visualization System (Boston Scientific Corp, Natick, MA, USA) is currently the most widely used and studied device. Cholangioscopy with intraductal lithotripsy has become an established modality in the treatment of difficult biliary lithiasis...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28606165/pitfalls-in-tamvi-experience-with-the-repositionable-lotus%C3%A2-valve-system
#10
Paul P Heinisch, Fabien Praz, Bernhard Winkler, Stephan Windecker, Christoph Huber, Thierry Carrel
BACKGROUND: Simultaneous transapical implantation of transcatheter heart valves in the native mitral and aortic position may be considered as an alternative to surgical valve replacement in high-risk patients presenting with combined valve disease. CASE PRESENTATION: A 59-year-old female with severe aortic stenosis, severe mitral stenosis with mild mitral insufficiency, persistent atrial fibrillation, severe chronic obstructive pulmonary disease and NYHA class of IV was evaluated by our interdisciplinary heart team...
June 12, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28584846/rare-esophageal-migration-of-axios-stent-used-for-walled-off-pancreatic-necrosis-drainage
#11
Yousef Abdel-Aziz, Anas Renno, Tariq Hammad, Ali Nawras
The AXIOS stent (Boston Scientific, Marlborough, MA) is a novel lumen-apposing self-expandable metallic stent designed for enteric drainage of nonadherent lumens. Efficacy and safety of using the AXIOS stent for pancreatic fluid drainage have been consistently shown in several studies. Although it is less common with this novel stent, stent migration still may happen. We present a case of AXIOS stent migration into the esophagus.
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28566941/embolic-protection-using-the-wirion-embolic-protection-system-with-jetstream-atherectomy-in-a-patient-with-superficial-femoral-artery-chronic-total-occlusion
#12
Nicolas W Shammas
Distal embolization is a common occurrence with peripheral arterial interventions and is more frequent with the use of atherectomy devices. We report the first case of JetStream atherectomy (Boston Scientific, Maple Grove, MN) with the use of the novel WIRION embolic protection system filter. The procedure was performed successfully with no distal embolizations beyond the filter and with no complications in the delivery or retrieval of the filter. The pros and cons of the off label use of this filter with JetStream atherectomy are discussed...
June 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28566290/outcome-with-the-repositionable-and-retrievable-boston-scientific-lotus-valve-compared-with-the-balloon-expandable-edwards-sapien-3-valve-in-patients-undergoing-transfemoral-aortic-valve-replacement
#13
Julia Seeger, Birgid Gonska, Wolfgang Rottbauer, Jochen Wöhrle
BACKGROUND: New generation devices for transfemoral aortic valve replacement were optimized on valve positioning and reduction of residual aortic regurgitation. We compared 30-day, 12-month, and 24-month outcomes of the Boston Scientific Lotus valve (Lotus) and the balloon-expandable Edwards Sapien 3 (ES3) valve. Primary end point was all-cause mortality or disabling stroke within 12 months. METHODS AND RESULTS: Between 2014 and 2016, 537 patients were enrolled at our center, and 202 patients received Lotus and 335 ES3...
June 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28554939/simplified-clinical-algorithm-for-identifying-patients-eligible-for-immediate-initiation-of-antiretroviral-therapy-for-hiv-slate-protocol-for-a-randomised-evaluation
#14
Sydney Rosen, Matthew P Fox, Bruce A Larson, Alana T Brennan, Mhairi Maskew, Isaac Tsikhutsu, Margaret Bii, Peter D Ehrenkranz, Wd Francois Venter
INTRODUCTION: African countries are rapidly adopting guidelines to offer antiretroviral therapy (ART) to all HIV-infected individuals, regardless of CD4 count. For this policy of 'treat all' to succeed, millions of new patients must be initiated on ART as efficiently as possible. Studies have documented high losses of treatment-eligible patients from care before they receive their first dose of antiretrovirals (ARVs), due in part to a cumbersome, resource-intensive process for treatment initiation, requiring multiple clinic visits over a several-week period...
May 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28535554/anesthetic-considerations-and-perioperative-management-of-spinal-cord-stimulators-literature-review-and-initial-recommendations
#15
REVIEW
Michael E Harned, Brandon Gish, Allison Zuelzer, Jay S Grider
BACKGROUND: Patients with implanted spinal cord stimulators (SCS) present to the anesthesia care team for management at many different points along the care continuum. Currently, the literature is sparse on the perioperative management. What is available is confusing; monopolar electrocautery is contraindicated but often used, full body magnetic resonance imaging (MRI) is safe with particular systems but with other manufactures only head and specific extremities exams are safe. Moreover, there are anesthetizing locations outside of the operating room where implanted SCS can interact with surrounding medical equipment and pose significant risk to patient and device...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28530488/the-effect-of-angiojet-rheolytic-thrombectomy-in-the-endovascular-treatment-of-lower-extremity-deep-venous-thrombosis
#16
Mert Dumantepe, Ibrahim Uyar
Objective To evaluate the clinical safety and effectiveness of percutaneous rheolytic thrombectomy in patients with acute lower extremity deep venous thrombosis. Method Sixty-eight consecutive patients with acute massive lower extremity deep venous thrombosis were included in this retrospective study. A percutaneous rheolytic thrombectomy device (Angiojet ® Rheolytic thrombectomy catheter, Boston Scientific, Marlborough, MA, USA) was used in all patients in an angiography suite through ipsilateral popliteal vein access...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28508439/conventional-and-right-sided-screening-for-subcutaneous-icd-in-a-population-with-congenital-heart-disease-at-high-risk-of-sudden-cardiac-death
#17
Pau Alonso, Joaquín Osca, Joaquín Rueda, Oscar Cano, Pedro Pimenta, Ana Andres, María José Sancho, Luis Martinez
BACKGROUND: Information regarding suitability for subcutaneous defibrillator (sICD) implantation in tetralogy of Fallot (ToF) and systemic right ventricle is scarce and needs to be further explored. The main objective of our study was to determine the proportion of patients with ToF and systemic right ventricle eligible for sICD with both, standard and right-sided screening methods. Secondary objectives were: (i) to study sICD eligibility specifically in patients at high risk of sudden cardiac death, (ii) to identify independent predictors for sICD eligibility, and (iii) to compare the proportion of eligible patients in a nonselected ICD population...
May 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28501315/endovascular-stenting-for-end-stage-lung-cancer-patients-with-superior-vena-cava-syndrome-post-first-line-treatments-a-single-center-experience-and-literature-review
#18
Tzu-Ting Kuo, Po-Lin Chen, Chun-Che Shih, I-Ming Chen
BACKGROUND: Superior vena cava (SVC) syndrome is a major complication that occurs when a growing lung malignancy compresses the SVC extrinsically. Current treatment options include radiotherapy or chemotherapy to shrink the tumor or endovascular stenting of the SVC to restore flow. Herein, we report a case series treated in a single institution to demonstrate the safety, effectiveness, and outcomes of salvage and primary stenting for malignant SVC obstruction. METHODS: A total of 12 male patients with malignant superior vena cava obstruction caused by lung cancer underwent SVC stenting from October 2009 to May 2015...
May 10, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28492573/-lotus-sadra-valve-implantation-complicated-by-type-b-aortic-dissection-diagnosis-and-treatment
#19
Emanuele Cigala, Ida Monteforte, Orlando Piro, Vittorio Monda, Claudia Capozzolo, Giulio Bonzani
Transcatheter aortic valve implantation (TAVI) is a validated technique for the treatment of aortic valve stenosis in patients with high surgical risk or inoperable. We present the case of an 80-year-old woman with severe aortic valve stenosis (mean gradient 55 mmHg), mild surgical risk, who refused traditional surgery. We implanted a Lotus Sadra 25 mm (Boston Scientific, Marlborough, MA, USA) via the transfemoral route. During pull back delivery, the patient experienced interscapular pain with angiographic evidence of type B aortic dissection effectively treated by implanting a vascular endoprosthesis Valiant 30 x 150 mm (Medtronic Vascular, Santa Rosa, CA, USA)...
April 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28487355/impact-of-fluoropolymer-based-paclitaxel-delivery-on-neointimal-proliferation-and-vascular-healing-a-comparative-peripheral-drug-eluting-stent-study-in-the-familial-hypercholesterolemic-swine-model-of-femoral-restenosis
#20
Pawel Gasior, Yanping Cheng, Andres F Valencia, Jenn McGregor, Gerard B Conditt, Grzegorz L Kaluza, Juan F Granada
BACKGROUND: A polymer-free peripheral paclitaxel-eluting stent (PES, Zilver PTX, Cook, IN) has shown to improve vessel patency after superficial femoral angioplasty. A new-generation fluoropolymer-based PES (FP-PES; Eluvia, Boston Scientific, MA) displaying more controlled and sustained paclitaxel delivery promise to improve the clinical outcomes of first-generation PES. We sought to compare the biological effect of paclitaxel delivered by 2 different stent-coating technologies (fluoropolymer-based versus polymer-free) on neointimal proliferation and healing response in the familial hypercholesterolemic swine model of femoral restenosis...
May 2017: Circulation. Cardiovascular Interventions
keyword
keyword
13951
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"