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https://www.readbyqxmd.com/read/27898435/percutaneous-left-atrial-appendage-closure-current-state-of-the-art
#1
Mohammad-Ali Jazayeri, Venkat Vuddanda, Valay Parikh, Dhanunjaya R Lakkireddy
PURPOSE OF REVIEW: The authors reviewed the seminal and more recent literature surrounding the major modalities for percutaneous left atrial appendage closure used in contemporary practice, with particular emphasis on safety and efficacy, technical challenges, and future developments. RECENT FINDINGS: Along with the continued practice of surgical left atrial appendage closure, which has evolved substantially with the advent of clipping techniques, a number of percutaneous methods have been developed to close the left atrial appendage with endocardial, epicardial, and hybrid approaches...
January 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/27884358/application-of-3-dimensional-computed-tomographic-image-guidance-to-watchman-implantation-and-impact-on%C3%A2-early-operator-learning-curve-single-center-experience
#2
Dee Dee Wang, Marvin Eng, Daniel Kupsky, Eric Myers, Michael Forbes, Mehnaz Rahman, Mohammad Zaidan, Sachin Parikh, Janet Wyman, Milan Pantelic, Thomas Song, Jeff Nadig, Patrick Karabon, Adam Greenbaum, William O'Neill
OBJECTIVES: The aim of this study was to examine the impact of 3-dimensional (3D) computed tomographic (CT) guided procedural planning for left atrial appendage (LAA) occlusion on the early operator WATCHMAN learning curve. BACKGROUND: Traditional WATCHMAN implantation is dependent on 2-dimensional transesophageal echocardiographic (TEE) sizing and intraprocedural guidance. METHODS: LAA occlusion with the WATCHMAN device was performed in 53 patients...
November 28, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27862233/transesophageal-echocardiographic-diagnosis-of-a-watchman-left-atrial-appendage-closure-device-thrombus-10%C3%A2-years-following-implantation
#3
Shariq Shamim, Anthony Magalski, Adnan C Chhatriwalla, Keith B Allen, Kenneth C Huber, Michael L Main
Left atrial appendage closure with the WATCHMAN device is an alternative to chronic oral anticoagulation for thromboembolic prophylaxis in atrial fibrillation patients. Left atrial device-related thrombus (DRT) has been described in the first year after implant with an incidence of ~6%. A 79-year-old man underwent WATCHMAN device placement in 2006. Routine protocol specified follow-up transesophageal echocardiograms (TEE) at 6 weeks, 6 months, and 1 year following implant showed no evidence for DRT or peri-device flow...
November 16, 2016: Echocardiography
https://www.readbyqxmd.com/read/27816552/post-fda-approval-initial-us-clinical-experience-with-watchman-left-atrial-appendage-closure-for-stroke-prevention-in-atrial-fibrillation
#4
Vivek Y Reddy, Douglas N Gibson, Saibal Kar, William O'Neill, Shephal K Doshi, Rodney P Horton, Maurice Buchbinder, Nicole T Gordon, David R Holmes
BACKGROUND: Left atrial appendage closure (LAAC) using the Watchman device was FDA-approved as a stroke prevention alternative to warfarin for patients with non-valvular atrial fibrillation. However, clinical decision-making is confounded by the fact that while LAAC avoids the anticoagulant-related lifetime risk of bleeding, implantation is associated with up-front complications. Thus, enthusiasm for LAAC as a treatment option has been appropriately tempered, particularly as the therapy is introduced beyond the clinical trial sites into general clinical practice...
October 27, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27815629/pulmonary-artery-perforation-and-coronary-air-embolism-two-fatal-outcomes-in-percutaneous-left-atrial-appendage-occlusion
#5
J Zwirner, R Bayer, C Hädrich, A Bollmann, N Klein, J Dreßler, B Ondruschka
Percutaneous left atrial appendage (LAA) closure is a routinely performed method to reduce the risk of stroke in patients suffering from atrial fibrillation, when an oral anticoagulation is no longer indicated due to relevant bleeding complications. Currently, the Amplatzer Amulet and the Watchman system are two equally used systems. While there is an acute success rate of more than 95 per cent for this intervention, several minor and major complications such as pericardial effusions, air embolism, vascular lesions in proximity to the heart or even death can occur...
November 4, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27771552/use-of-non-warfarin-oral-anticoagulants-instead-of-warfarin-during-left-atrial-appendage-closure-with-the-watchman-device
#6
Yoshinari Enomoto, Varuna K Gadiyaram, Carola Gianni, Rodney P Horton, Chintan Trivedi, Sanghamitra Mohanty, Luigi Di Biase, Amin Al-Ahmad, J David Burkhardt, Arvin Narula, Gwen Janczyk, Matthew J Price, Muhammad R Afzal, Moustapha Atoui, Matthew Earnest, Vijay Swarup, Shephal K Doshi, Sarina van der Zee, Rebecca Fisher, Dhanunjaya R Lakkireddy, Douglas N Gibson, Andrea Natale, Vivek Y Reddy
BACKGROUND: In the stroke prevention trials of left atrial appendage closure with the Watchman device (Boston Scientific), a postimplantation antithrombotic regimen of 6 weeks of warfarin was used. OBJECTIVE: Given the clinical complexity of warfarin use, the purpose of this study was to study the relative feasibility and safety of using non-warfarin oral anticoagulants (NOACs) instead of warfarin during the peri- and initial postimplantation periods after Watchman implantation...
October 19, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27745964/characterization-of-cerebrovascular-events-after-left-atrial-appendage-occlusion
#7
Xavier Freixa, Laura Llull, Sameer Gafoor, Ignacio Cruz-Gonzalez, Samera Shakir, Heyder Omran, Sergio Berti, Gennaro Santoro, Joelle Kefer, Ulf Landmesser, Jens Erik Nielsen-Kudsk, Prapa Kanagaratnam, Fabian Nietlispach, Steffen Gloekler, Adel Aminian, Paolo Danna, Marco Rezzaghi, Friederike Stock, Miroslava Stolcova, Luis Paiva, Marco Costa, Xavier Millán, Reda Ibrahim, Tobias Tichelbäcker, Wolfgang Schillinger, Jai-Wun Park, Horst Sievert, Bernhard Meier, Apostolos Tzikas
Cardioembolic strokes are generally more lethal and disabling than other source of strokes. Data from PROTECT AF (Watchman Left Atrial Appendage Closure Technology for Embolic Protection in Patients With Atrial Fibrillation) suggest that strokes after left atrial appendage occlusion (LAAO) with the Watchman device are less disabling than those in the warfarin group. No data assessing the severity of strokes after LAAO with the AMPLATZER Cardiac Plug (ACP) are available. The objective of the study was to evaluate the severity of cerebrovascular events after LAAO with the ACP in a population mostly characterized by an absolute or relative contraindication to oral anticoagulation...
September 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27706224/comparison-of-approaches-for-stroke-prophylaxis-in-patients-with-non-valvular-atrial-fibrillation-network-meta-analyses-of-randomized-controlled-trials
#8
Navkaranbir S Bajaj, Rajat Kalra, Nirav Patel, Taimoor Hashim, Hemant Godara, Sameer Ather, Garima Arora, Tilak Pasala, Thomas T Whitfield, David C McGiffin, Mustafa I Ahmed, Steven G Lloyd, Nita A Limdi, Pankaj Arora
BACKGROUND: Multiple novel oral anticoagulants and left atrial appendage closure devices (WATCHMAN) have been tested against dose-adjusted vitamin K antagonists in randomized controlled trials for stroke prophylaxis in non-valvular atrial fibrillation. No direct comparisons of these strategies are available from randomized controlled trials. We conducted the current analyses by combining efficacy and safety characteristics of all FDA approved stroke prophylaxis treatment strategies for patients with non-valvular atrial fibrillation...
2016: PloS One
https://www.readbyqxmd.com/read/27696317/left-atrial-appendage-closure-for-stroke-prevention-in-atrial-fibrillation
#9
Erin A Fender, Jawad G Kiani, David R Holmes
PURPOSE OF REVIEW: Anticoagulant therapy effectively reduces the incidence of stroke in patients with atrial fibrillation (AF) but is underutilized and frequently contraindicated. The left atrial appendage (LAA) is the primary site of thrombus formation in AF patients. Surgical and percutaneous appendage closure has been evaluated as a site-specific therapy to reduce systemic thromboembolism. RECENT FINDINGS: We will review LAA closure techniques, examine recent outcome data, and discuss the indications for, and potential complications of, each approach...
November 2016: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/27680664/left-atrial-appendage-closure-under-intracardiac-echocardiographic-guidance-feasibility-and-comparison-with-transesophageal-echocardiography
#10
Yae Matsuo, Petr Neuzil, Jan Petru, Milan Chovanec, Marek Janotka, Subbarao Choudry, Jan Skoda, Lucie Sediva, Masahiko Kurabayashi, Vivek Y Reddy
BACKGROUND: Transcatheter left atrial appendage closure is an alternative therapy for stroke prevention in atrial fibrillation patients. These procedures are currently guided with transesophageal echocardiography and fluoroscopy in most centers. As intracardiac echocardiography (ICE) is commonly used in other catheter-based procedures, we sought to determine the safety and effectiveness of intracardiac echocardiography-guided left atrial appendage closure with the Watchman device. METHODS AND RESULTS: A total of 27 patients (11 males, 77...
September 28, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27679417/retrieval-of-embolized-left-atrial-appendage-devices
#11
Peter Fahmy, Lim Eng, Jacqueline Saw
Percutaneous left atrial appendage (LAA) closure is gaining interest as an alternative option for prevention of strokes in patients with Atrial Fibrillation (AF), especially for those with contraindications to anticoagulation. Complications from these procedures are well described in the medical literature. LAA closures may lead to pericardial effusion, device-associated thrombus, and device embolization. Understanding the reasons for embolization, strategies to avoid embolization, and the techniques for retrieval of LAA devices (ACP/AMULET and WATCHMAN) should be appreciated by endovascular implanters...
September 28, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27651124/percutaneous-left-atrial-appendage-occlusion-using-different-technologies-in-the-united-kingdom-a-multicenter-registry
#12
Timothy R Betts, Milena Leo, Sandeep Panikker, Prapa Kanagaratnam, Michael Koa-Wing, David Wyn Davies, David Hildick-Smith, Dylan G Wynne, Oliver Ormerod, Oliver R Segal, Anthony W Chow, Derick Todd, Sandra Cabrera Gomez, Graeme J Kirkwood, David Fox, Chris Pepper, John Foran, Tom Wong
OBJECTIVES: This study aimed at assessing the feasibility and long-term efficacy of left atrial appendage occlusion (LAAO) in a "real world" setting. BACKGROUND: Although LAAO has recently emerged as an alternative to oral anticoagulants in patients with atrial fibrillation for the prevention of thromboembolic stroke, "real world" data about the procedure with different devices are lacking. METHODS: Eight centers in the United Kingdom contributed to a retrospective registry for LAAO procedures undertaken between July 2009 and November 2014...
September 21, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27649848/intracardiac-versus-transesophageal-echocardiography-for-left-atrial-appendage-occlusion-with-watchman
#13
Antonio H Frangieh, Jasmina Alibegovic, Christian Templin, Oliver Gaemperli, Slayman Obeid, Robert Manka, Erik W Holy, Willibald Maier, Thomas F Lüscher, Ronald K Binder
BACKGROUND: Left atrial appendage occlusion (LAAO) is mostly performed by transesophageal echocardiography (TEE) guidance. Intracardiac echocardiography (ICE) may be an alternative imaging modality for LAAO that precludes the need for general anesthesia or sedation. METHODS AND RESULTS: All consecutive single center, single operator LAAO candidates were analyzed. Baseline clinical and procedural characteristics and in-hospital outcomes were compared between patients in whom a Watchman was implanted with ICE vs...
September 21, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27647674/peri-procedural-silent-cerebral-infarcts-after-left-atrial-appendage-occlusion
#14
M Laible, M Möhlenbruch, S Horstmann, J Pfaff, N A Geis, S Pleger, S Schüler, T Rizos, M Bendszus, R Veltkamp
BACKGROUND AND PURPOSE: To determine the rate of peri-interventional silent brain infarcts after left atrial appendage occlusion (LAAO). METHODS: In this prospective, uncontrolled single-center pilot study, consecutive patients with atrial fibrillation undergoing LAAO between July 2013 and January 2016 were included. The Amplatzer Cardiac Plug, WATCHMAN or Amulet device was used. A neurological examination and cranial magnetic resonance imaging (MRI) were performed within 48 h before and after the procedure...
September 19, 2016: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/27637120/diagnosis-and-treatment-of-atrial-fibrillation
#15
Cecilia Gutierrez, Daniel G Blanchard
Atrial fibrillation is a supraventricular arrhythmia that adversely affects cardiac function and increases the risk of stroke. It is the most common arrhythmia and a major source of morbidity and mortality; its prevalence increases with age. Pulse rate is sensitive, but not specific, for diagnosis, and suspected atrial fibrillation should be confirmed with 12-lead electrocardiography. Because normal electrocardiographic findings do not rule out atrial fibrillation, home monitoring is recommended if there is clinical suspicion of arrhythmia despite normal test results...
September 15, 2016: American Family Physician
https://www.readbyqxmd.com/read/27621674/percutaneous-left-atrial-appendage-closure-devices-safety-efficacy-and-clinical-utility
#16
REVIEW
Martin J Swaans, Lisette Is Wintgens, Arash Alipour, Benno Jwm Rensing, Lucas Va Boersma
Atrial fibrillation (AF) is the most common arrhythmia treated in the clinical practice. One of the major complications of AF is a thromboembolic cerebral ischemic event. Up to 20% of all strokes are caused by AF. Thromboembolic cerebral ischemic event in patients with AF occurs due to atrial thrombi, mainly from the left atrial appendage (LAA). Prevention of clot formation with antiplatelet agents and especially oral anticoagulants (vitamin K antagonists or newer oral anticoagulants) has been shown to be effective in reducing the stroke risk in patients with AF but has several drawbacks with (major) bleedings as the most important disadvantage...
2016: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/27595532/anesthesia-and-transesophageal-echocardiography-for-watchman-device-implantation
#17
REVIEW
Ludmil Mitrev, Natalie Trautman, Ratna Vadlamudi, Nayan Desai, Sajjad A Sabir
No abstract text is available yet for this article.
December 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27594651/initial-experience-with-the-watchman%C3%A2-left-atrial-appendage-system-for-stroke-prevention-in-atrial-fibrillation-a-single-centre-registry
#18
Guillaume Bonnet, Erwan Salaun, Mathieu Pankert, Thomas Cuisset, Jean-Louis Bonnet
BACKGROUND: Left atrial appendage (LAA) closure using the WATCHMAN™ device (WM) may be considered in patients with non-valvular atrial fibrillation (AF) and a high-risk of stroke who are ineligible for long-term oral anticoagulation (OAC). AIM: To report our single-centre preliminary experience, focusing on feasibility, safety and short-term efficacy of this procedure. METHODS: Patients implanted from December 2013 to February 2014 were included...
September 1, 2016: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/27567013/left-atrial-appendage-closure-a-single-center-experience-and-comparison-of-two-contemporary-devices
#19
Filippo Figini, Patrizio Mazzone, Damiano Regazzoli, Giulia Porata, Neil Ruparelia, Francesco Giannini, Stefano Stella, Francesco Ancona, Eustachio Agricola, Nicoleta Sora, Alessandra Marzi, Andrea Aurelio, Nicola Trevisi, Paolo Della Bella, Antonio Colombo, Matteo Montorfano
OBJECTIVES: To compare indications and clinical outcomes of two contemporary left atrial appendage (LAA) percutaneous closure systems in a "real-world" population. BACKGROUND: Percutaneous LAA occlusion is an emerging therapeutic option for stroke prevention in atrial fibrillation. Some questions however remain unanswered, such as the applicability of results of randomized trials to current clinical practice. Moreover, currently available devices have never been directly compared...
August 27, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27537503/the-value-of-3d-printing-models-of-left-atrial-appendage-using-real-time-3d-transesophageal-echocardiographic-data-in-left-atrial-appendage-occlusion-applications-toward-an-era-of-truly-personalized-medicine
#20
Peng Liu, Rijing Liu, Yan Zhang, Yingfeng Liu, Xiaoming Tang, Yanzhen Cheng
AIMS AND OBJECTIVES: The objective of this study was to assess the clinical feasibility of generating 3D printing models of left atrial appendage (LAA) using real-time 3D transesophageal echocardiogram (TEE) data for preoperative reference of LAA occlusion. BACKGROUND: Percutaneous LAA occlusion can effectively prevent patients with atrial fibrillation from stroke. However, the anatomical structure of LAA is so complicated that adequate information of its structure is essential for successful LAA occlusion...
August 19, 2016: Cardiology
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