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Left Atrial Appendage

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https://www.readbyqxmd.com/read/29149516/feasibility-of-percutaneous-left-atrial-appendage-closure-using-a-novel-lambre-occluder-in-patients-with-atrial-fibrillation-initial-results-from-a-prospective-cohort-registry-study
#1
Shaojie Chen, Boris Schmidt, Stefano Bordignon, Fabrizio Bologna, Takahiko Nagase, Nikolaos Tsianakas, Laura Perrotta, K R Julian Chun
BACKGROUND: The LAmbreۛ occluder is a novel device for percutaneous left atrial appendage closure (LAAC). The presented study aimed to report the initial experience in implantation of the novel LAmbre for LAAC in patients with non-valvular AF. METHODS: We conducted a prospective, observational, cohort registry study to evaluate the feasibility of percutaneous LAAC using the LAmbre occlude. RESULTS: Thirty patients (15 female, mean age 77...
November 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29146668/percutaneous-left-atrial-appendage-closure-current-devices-and-clinical-outcomes
#2
REVIEW
Lluis Asmarats, Josep Rodés-Cabau
Chronic oral anticoagulation therapy is the standard therapy for preventing thromboembolic events in patients with atrial fibrillation. However, oral anticoagulation has been associated with an increased risk of bleeding events, and despite the improvements linked to the introduction of direct oral anticoagulants, more than one third of atrial fibrillation patients still remain untreated. Over the past decade, percutaneous left atrial appendage closure has emerged as a valid alternative to anticoagulation therapy for the prevention of stroke/systemic embolism in patients with atrial fibrillation...
November 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29145264/influences-of-cardiac-motion-on-computed-tomography-guided-biopsy-of-lung-nodules-located-near-the-heart
#3
Li-Sheng Hsu, Chien-Wei Chen, Chia-Hao Chang, Chien-Han Liao, Sheng-Lung Hsu, Wei-Ming Lin
Computed tomography (CT)-guided lung biopsy of nodules located near the heart may be associated with potential complications. To understand the influences of cardiac motion on lung parenchyma during biopsy, we processed the cardiac phase images of coronary CT angiography (CCTA) and noticed shifts in mediastinum lung margin (MLM) at different zones.Thirty eight CCTA (27 men and 11 women) were retrospectively evaluated. Image processing was done with Fiji (an open source Java image processing program by Fiji contributors) using 10% to 90% phase images of CCTA; and tissue displacement (MLM shift) was shown on the resulting images...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143099/-left-atrial-appendage-clusure-in-nonvalvular-atrial-fibrillation-clinical-evidence-2017
#4
REVIEW
Steffen Gloekler, Bajram Hajredini, Simon Rycerz, Sebastian Jäckle, Werner Jung
Nonvalvular atrial fibrillation (AF) is the most common arrhythmia with a prevalence of 1-2% and affects approximately 15-20% of all octogenarians. Patients are at increased risk of thromboembolic stroke, with an overall risk of 5% per year. Thrombi form almost exclusively in the left atrial appendage (LAA), a blind sac-like heterogeneous structure trabeculated by pectinate muscles. In the past five decades, life-long oral anticoagulation (OAC) with vitamin K antagonists (VKA) has been the state-of-the art treatment to prevent stroke and systemic embolism from thrombi in AF...
November 15, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29136152/concomitant-thoracoscopic-surgery-for-solitary-pulmonary-nodule-and-atrial-fibrillation
#5
Rongxin Lu, Ju Mei, Dongfang Zhao, Zhaolei Jiang, Haibo Xiao, Mingsong Wang, Nan Ma
OBJECTIVES: The incidence of both solitary pulmonary nodules (SPN) and non-valvular atrial fibrillation (NVAF) has increased over the past decade. We performed concomitant video-assisted thoracoscopic surgery with modified epicardial radiofrequency ablation procedure for NVAF and SPN resection. METHODS: Sixteen patients (7 men, mean age 62.6 ± 11.2 years) with SPN and NVAF underwent this procedure. Of these patients, 10 had paroxysmal atrial fibrillation and 6 persistent atrial fibrillation...
November 10, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29135523/targeting-nonpulmonary-vein-triggers-during-atrial-fibrillation-ablation-is-the-game-worth-the-candle
#6
Ahmed AlTurki, Howard J Marshall, Riccardo Proietti
PURPOSE OF REVIEW: Triggers for atrial fibrillation are found outside the pulmonary veins in 12-20% of cases. The role of addressing these triggers during catheter ablations has not been well defined. Therefore, the aim of this review is to summarize the effect of ablation of nonpulmonary vein triggers in addition to pulmonary vein isolation across the spectrum of atrial fibrillation in patients receiving catheter ablation. RECENT FINDINGS: In paroxysmal atrial fibrillation, an inducible nonpulmonary vein trigger is an independent predictor of recurrence...
November 10, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29131295/the-intracardiac-concentrations-of-the-n-terminal-pro-b-type-natriuretic-peptide-nt-probnp-and-the-determinants-of-its-secretion-in-patients-with-atrial-fibrillation
#7
Witold Streb, Katarzyna Mitręga, Magdalena Szymała, Aleksandra Woźniak, Tomasz Podolecki, Zbigniew Kalarus
BACKGROUND: N-terminal-pro Brain Natriuretic Peptide (NT-proBNP) is elevated not only in heart failure (HF) but also in atrial fibrillation (AF). The role and secretion pattern of NT-proBNP in AF is still undetermined. AIM: The study aimed to assess NT-proBNP concentrations in patients with and without preserved left ventricular ejection fraction (LV-EF) depending on the type of AF. It was also intended to define the main source of NT-proBNP production within the heart...
November 13, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29130638/thromboembolism-after-watchman-tm-in-a-clopidogrel-non-responder-a-case-for-concern
#8
Ganesh Venkataraman, Kevin P Bliden, Udaya S Tantry, Paul A Gurbel
Atrial fibrillation (AF) is associated with an increased risk of stroke and thromboembolism (TE). The WATCHMAN(TM) left atrial appendage (LAA) closure device is indicated to reduce the risk of TE from the LAA in patients with non-valvular AF. Here, we present a case of a patient with device-related thrombus who suffered a TE event two months after WATCHMAN(TM) LAA closure and two weeks after switching from aspirin plus warfarin to aspirin plus clopidogrel therapy. Laboratory investigation identified the patient to be hypercoagulable and to be a non-responder to clopidogrel therapy...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29129259/comparison-of-prevalence-and-management-of-left-atrial-appendage-thrombi-under-old-and-new-anticoagulants-prior-to-left-atrial-catheter-ablation
#9
Antoine Da Costa, Clarisse Delolme, Jean Baptiste Guichard, Antoine Gerbay, Romain Pierrard, Cécile Romeyer-Bouchard, Karl Isaaz
BACKGROUND: The prevalence and management of left atrial appendage (LAA) thrombi associated with new anticoagulants remain to be elucidated, especially prior to atrial fibrillation (AFib) ablation. This study sought to (1) compare the prevalence of LAA thrombi and/or severe LAA contrast under vitamin K antagonist (VKA) agents and novel oral anticoagulants (NOACs), (2) evaluate the rate of LAA thrombus resolution after anticoagulation modification, and (3) determine the predictive factors of LAA thrombi and severe LAA contrast in patients prior to LA AFib ablation...
November 2017: American Heart Journal
https://www.readbyqxmd.com/read/29128265/atrial-flutter-has-less-left-atrial-spontaneous-contrast-and-higher-left-atrial-appendage-emptying-velocity-compared-with-atrial-fibrillation
#10
Jennifer J Huang, Sridhar Reddy, Tam H Truong, Prakash Suryanarayana, Joseph S Alpert
BACKGROUND: The risk of stroke and thromboembolism in atrial fibrillation is established. There are clear guidelines in anticoagulation management of patient's with atrial fibrillation, however, the evidence surrounding the risk of thromboembolism in patients with atrial flutter is not as clear. We hypothesized that atrial flutter would have indicators of less risk for thromboembolism compared with atrial fibrillation on transesophageal echocardiography (TEE); thereby possibly leading to a lower stroke risk...
November 8, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/29126973/percutaneous-left-atrial-appendage-occlusion-multimodality-imaging-step-by-step
#11
Manuel Barreiro-Pérez, Ignacio Cruz-González, Pedro L Sánchez
No abstract text is available yet for this article.
November 7, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29126892/atrial-fibrillation-ablation-beyond-pulmonary-veins-the-role-of-left-atrial-appendage
#12
REVIEW
Jorge Romero, Andrea Natale, Luigi Di Biase
The role of pulmonary vein isolation in patients with non-paroxysmal atrial fibrillation (AF) is only modest. Several studies have demonstrated the role of the left atrial appendage (LAA) in initiating and maintaining of this arrhythmia. We review in this article the incremental benefit in free-arrhythmia recurrence of LAA electrical isolation in patients undergoing procedures for persistent AF or long standing persistent AF either using radiofrequency ablation, cryoablation or Lariat device implantation. Likewise, acute complications, anticoagulation and the risk of ischemic stroke after LAA electrical isolation (LAAEI) are analyzed...
November 7, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29122931/outcome-of-left-atrial-appendage-occlusion-in-high-risk-patients
#13
Ahmed Masoud, Stefano Bartoletti, Timothy Fairbairn, Ayush Khurana, Periaswamy Velavan, William Lindsay Morrison, Afshin Khalatbari, Suneil Aggarwal, Nikhill Sharma, Paulus Kirchhof, Dhiraj Gupta
OBJECTIVE: Percutaneous left atrial appendage (LAA) occlusion can be an interventional alternative to oral anticoagulation for stroke prevention in patients with atrial fibrillation. METHODS: We delivered LAA occlusion therapy using a standardised approach to patient referral, multidisciplinary team assessment, implant criteria, imaging and follow-up. We analysed patient characteristics, efficacy and safety of the implant procedure, and 12-month outcomes. RESULTS: Of 143 referrals from October 2014 to December 2016, 83 patients (age 76±8 years, 32...
November 9, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29122135/transseptal-puncture-through-amplatzer-atrial-septal-occluder-for-left-atrial-appendage-closure
#14
Steffen Gloekler, Samera Shakir, Bernhard Meier
No abstract text is available yet for this article.
November 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29122134/left-atrial-appendage-closure-continuous-progress-with-remaining-challenges
#15
EDITORIAL
Horst Sievert, Stefan Bertog
No abstract text is available yet for this article.
November 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29122133/percutaneous-left-atrial-appendage-closure-with-the-lambre-device-for-stroke%C3%A2-prevention-in-atrial-fibrillation-a-prospective-multicenter-clinical-study
#16
He Huang, Yu Liu, Yawei Xu, Zulu Wang, Yigang Li, Kejiang Cao, Shu Zhang, Yanzong Yang, Xinchun Yang, Dejia Huang, Bo Yu, Xi Su, Liqun Wu, Congxin Huang
OBJECTIVES: The authors sought to assess the clinical outcomes of left atrial appendage (LAA) closure with the LAmbre closure system in patients with nonvalvular atrial fibrillation (NVAF). BACKGROUND: Over 90% of thrombi are located in the LAA in NVAF patients. METHODS: A prospective, multicenter study was conducted in 153 NVAF patients with CHADS2 score ≥1. RESULTS: The LAA was successfully occluded in 152 patients...
November 13, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29121724/noacs-and-atrial-fibrillation-incidence-and-predictors-of-left-atrial-thrombus-in-the-real-world
#17
Emanuele Bertaglia, Matteo Anselmino, Alessandro Zorzi, Vincenzo Russo, Elisabetta Toso, Francesco Peruzza, Antonio Rapacciuolo, Federico Migliore, Fiorenzo Gaita, Umberto Cucchini, Marcello De Divitiis, Sabino Iliceto, Giuseppe Stabile
AIMS: Despite optimal oral anticoagulation with vitamin K antagonist, left atrial (LA) thrombus could be detected in the left appendage (LAA) in >2% of patients with atrial fibrillation (AF) and CHA2DS2-VASc score≥1 but few data are available for patients treated with non-vitamin K antagonist oral anticoagulants (NOACs). We evaluated the occurrence and predictors of LA thrombi by means of transesophageal echocardiography (TOE) in consecutive patients with non-valvular AF who received for at least 3weeks Apixaban, Dabigatran, or Rivaroxaban...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29121173/managing-the-left-atrial-appendage
#18
Maximilian Y Emmert
No abstract text is available yet for this article.
May 21, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29113720/spanish-cardiac-catheterization-and-coronary-intervention-registry-26th-official-report-of-the-spanish-society-of-cardiology-working-group-on-cardiac-catheterization-and-interventional-cardiology-1990-2016
#19
Ana María Serrador Frutos, Pilar Jiménez-Quevedo, Armando Pérez de Prado, Manuel Pan Álvarez-Ossorio
INTRODUCTION AND OBJECTIVES: The Working Group on Cardiac Catheterization and Interventional Cardiology presents its annual report on the activity data for 2016. METHODS: All Spanish hospitals with catheterization laboratories were invited to voluntarily contribute their activity data. The information was collected online and was analyzed mainly by an independent company. RESULTS: In 2016, 106 centers participated in the national registry; 80 of these centers are public...
November 4, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29107175/entrapment-of-focal-atrial-tachycardia-using-cryoballoon-ablation-sinus-rhythm-in-the-left-atrium-and-ongoing-atrial-tachycardia-in-the-left-atrial-appendage
#20
Hikmet Yorgun, Uğur Canpolat, Banu Evranos, Kudret Aytemir
Left atrial appendage (LAA) is a well-known source of focal atrial tachycardias (AT). Although radio-frequency (RF) energy is the most commonly used technique in such cases, there was an option other than epicardial approach when RF technique fails. Cryoballoon technology is primarily developed to be used for pulmonary vein isolation (PVI). Also, there was no report regarding the isolation of LAA by using cryo-balloon in patients with focal AT. In this case, for the first time in the literature, we successfully isolated the LAA because of failed attempts of RF ablation for focal AT in whom the surface electrogram showed a sinus rhythm while arrhythmia continues inside the LAA...
October 28, 2017: Indian Pacing and Electrophysiology Journal
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