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https://www.readbyqxmd.com/read/28104213/atrial-fibrillation-and-transcatheter-aortic-valve-replacement-implications-of-pre-procedural-identification-of-left-atrial-appendage-thrombus-for-stroke-prevention
#1
EDITORIAL
Samir R Kapadia, Amar Krishnaswamy, E Murat Tuzcu
No abstract text is available yet for this article.
January 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28104212/left-atrial-appendage-thrombus-in-transcatheter-aortic-valve-replacement-incidence-clinical-impact-and-the-role-of-cardiac%C3%A2-computed%C3%A2-tomography
#2
Sonny Palmer, Nicholas Child, Mark A de Belder, Douglas F Muir, Paul Williams
OBJECTIVES: The aim of this study was to describe the incidence and clinical impact of left atrial appendage thrombus (LAAT) in a population referred for transcatheter aortic valve replacement (TAVR) and to examine the role of cardiac computed tomography (CCT) in the diagnosis of LAAT. BACKGROUND: Atrial fibrillation is common in patients undergoing TAVR. Embolization of LAAT is a potential mechanism of periprocedural stroke. The incidence and clinical impact of LAAT in a TAVR cohort have not been reported, and the optimal method for diagnosing LAAT remains unclear...
January 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28099289/orthogonal-views-of-coronary-vessels-a-method-for-imaging-the-delivery-of-blood-cardioplegia-using-transesophageal-echocardiography
#3
Luiz F Maracaja Neto, Raj Modak, Robert B Schonberger
Coronary blood flow can be disrupted during cardiac interventions such as mitral valve surgeries, left atrial appendage ligation, transcatheter aortic valve implantation, and aortic procedures involving reimplantation of coronary buttons. Although difficult to accomplish, coronary imaging using transesophageal echocardiography can be performed by the use of orthogonal imaging with the ability for real-time tilt for angle adjustment. The technique described herein allows imaging of the right coronary artery, left main coronary artery bifurcation, left anterior descending, and circumflex coronary arteries...
January 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28096835/left-atrial-appendage-mass-is-it-always-a-thrombus
#4
Hikmet Sahratov, Adem Guler, Mustafa Kurkluoglu, Fahri Gurkan Yesil, Murat Tavlasoglu, Faruk Cingoz
Myxoma is the most common benign tumor of the heart, but it is very rare for it to originate from the left atrial appendage. Distinguishing between a mass, a thrombus, and a tumor in the body of the left atrium with preoperative transthoracic or transesophageal echocardiography is very difficult, even more so in patients with mitral valve disease and chronic atrial fibrillation. A 50-year-old male patient was admitted for surgery with the diagnosis of mitral stenosis and chronic atrial fibrillation. Transesophageal echocardiography demonstrated a mass attached to the wall of the left atrial appendage...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28096289/left-juxtaposed-right-atrial-appendage-suspected-on-a-plain-chest-radiograph
#5
Naomi Gunadeva, Ruchit Shah, Gyanendra K Sharma, Jayanth H Keshavamurthy, Arie Franco
No abstract text is available yet for this article.
January 16, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28091832/utility-and-safety-of-the-safesept%C3%A2-transseptal-guidewire-for-electrophysiology-studies-with-catheter-ablation-in-pediatric-and-congenital-heart-disease
#6
Joseph J Knadler, Jeffrey B Anderson, Ahmad S Chaouki, Richard J Czosek, Chad Connor, Timothy K Knilans, David S Spar
PURPOSE: The atrial transseptal procedure is used in catheter ablation of left-sided arrhythmias. Studies in adult patients have shown the SafeSept™ transseptal guidewire (SSTG) to be effective in atrial transseptal procedures. We analyzed our 5-year experience with SSTG use in pediatric and congenital heart disease patients undergoing catheter ablation. METHODS: This is a single-center retrospective analysis of patients undergoing catheter ablation from 2009 to 2014...
January 14, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28091354/giant-congenital-left-atrial-appendage-aneurysm
#7
Chengyi Hui, Shuhua Luo, Qi An
We present a rare case of an asymptomatic giant congenital left atrial appendage aneurysm in a 19-year-old girl. We believe this is the largest congenital left atrial appendage aneurysm reported without any symptom.
January 16, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28089095/characteristics-of-anatomy-and-function-of-the-left-atrial-appendage-and-their-relationships-in-patients-with-cardioembolic-stroke-a-3-dimensional-transesophageal-echocardiography-study
#8
Yuki Matsumoto, Yoshihiro Morino, Akiko Kumagai, Maiko Hozawa, Motoyuki Nakamura, Yasuo Terayama, Atsushi Tashiro
BACKGROUND: Increasing attention is being paid to the left atrial appendage (LAA) in the context of risk stratification in cardioembolic stroke (CES) and the requirement for meticulous planning of percutaneous closure device implantation. However, detailed systematic assessment of the LAA remains limited. METHODS: This study evaluated the anatomy and function of LAA using 3-dimensional transesophageal echocardiography (3D-TEE) on 194 consecutive patients older than 50 years old hospitalized exclusively for CES...
January 6, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28079145/galectin-3-as-a-marker-of-interstitial-atrial-remodelling-involved-in-atrial-fibrillation
#9
Diana Hernández-Romero, Juan Antonio Vílchez, Álvaro Lahoz, Ana I Romero-Aniorte, Eva Jover, Arcadio García-Alberola, Rubén Jara-Rubio, Carlos M Martínez, Mariano Valdés, Francisco Marín
Remodelling in the atria could appear as a result of hypertension, diabetes or ischaemic heart disease. Galectin-3 (Gal-3) is a mediator of profibrotic pathways and a potential biomarker of cardiac remodelling. We prospectively recruited consecutive patients undergoing elective cardiac surgery. Preoperative Gal-3 levels were determined from serum samples, and the presence of fibrosis was assessed from atrial appendage tissue samples obtained during cardiac surgery. We included 100 patients with aortic valve or ischaemic heart diseases and 15 controls with permanent AF...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077818/enlargement-of-the-excluded-left-atrial-appendage-with-thrombus
#10
Shigeaki Aoyagi, Satoru Tobinaga, Hiroyuki Saisho
We report progressive enlargement of the excluded left atrial appendage (LAA) with a thrombus in a patient who had undergone valve surgery and endocardial suture closure of the LAA previously. Echocardiography and CT detected no communication between the LAA and the left atrium. Magnetic resonance imaging showed the LAA was filled with fresh and old thrombi. Coronary arteriography demonstrated small left coronary artery-LAA fistulae. At surgery, successful exclusion of the LAA was confirmed after removal of the thrombi...
January 11, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28077177/transcatheter-closure-of-secundum-atrial-septal-defects-has-fear-of-device-erosion-altered-outcomes
#11
Bryan Mitchelson, Clare O'Donnell, Peter Ruygrok, John Wright, John Stirling, Nigel Wilson
BACKGROUND: Transcatheter device closure has become the established standard of care for suitable atrial septal defects. Device erosion has been a recent focus and has prompted changes in the Instructions for Users documentation released by device companies. We reviewed our entire local experience with atrial septal defect device closure, focussing on the evolution of this procedure in our centre and particularly on complications. METHODS: We carried out a retrospective review of 581 consecutive patients undergoing attempted transcatheter device closure of an atrial septal defect in Auckland from December 1997 to June 2014...
January 12, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28075503/correlation-between-cardiac-rhythm-left-atrial-appendage-flow-velocity-and-cha2-ds2-vasc-score-study-based-on-transesophageal-echocardiography-and-2-dimensional-speckle-tracking
#12
Kun Zuo, Lanlan Sun, Xinchun Yang, Xiuzhang Lyu, Kuibao Li
BACKGROUND: The CHA2 DS2 -VASc score is a classic predictor of stroke in patients with atrial fibrillation (AF). Decreased left atrial appendage flow velocity (LAA-FV) reflects the blood stasis, and left atrial (LA) strain is a manifestation of atrial remodeling. This study aimed to explore the effects of AF rhythm and CHA2 DS2 -VASc score in the development of thrombogenesis and their potential correlation with LAA-FV and LA strain. HYPOTHESIS: AF rhythm and high CHA2 DS2 -VASc score correlate independently with decreased LAA-FV, which can be predicted by LA strain...
January 11, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28075036/double-trouble-a-case-of-periprocedural-detection-of-intracardiac-thrombus-and-aortic-root-dissection-during-emergent-transfemoral-tavr
#13
Carlos Corredor, Eric Horlick, Wendy Tsang, Massimiliano Meineri
We report a case of emergency transcatheter aortic valve replacement (TAVR) in a 65-year-old patient presenting with decompensated severe aortic stenosis. Transesophageal echocardiography (TEE) was used effectively to obtain measurements of the aortic annulus and for intra-procedural guidance. At baseline, we detected a left atrial appendage thrombus and a localized aortic root dissection after balloon valvuloplasty. The case highlights the important role that TEE may play during TAVR procedures.
January 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/28073645/percutaneous-closure-of-a-whale-tail-left-atrial-appendage
#14
Xavier Freixa, Alejandro Panaro, Julio Carballo
No abstract text is available yet for this article.
January 7, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28070743/cardiac-ct-angiography-ccta-predicts-left-atrial-appendage-occluder-device-size-and-procedure-outcome
#15
Orly Goitein, Noam Fink, Ilan Hay, Elio Di Segni, Victor Guetta, David Goitein, Yafim Brodov, Eli Konen, Michael Glikson
AIM: To investigate the role of cardiac CT angiography (CCTA) in predicting optimal left atrial appendage (LAA) occluder size and procedure outcome. METHODS AND RESULTS: Thirty-six patients underwent pre-procedural CCTA. CCTA and TEE LAA orifice diameters and perimeters were compared with the implanted device size. CCTA 3D configuration was correlated with procedure outcome. Watchman™ device (N = 18): diameters were 21 ± 4, 26 ± 5 and 25 ± 3 mm for TEE, CCTA and inserted device, respectively...
January 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28066659/percutaneous-epicardial-ablation-of-incessant-atrial-tachycardia-originating-from-the-left-atrial-appendage
#16
Ji-Eun Ban, Tae Young Park, Sang-Weon Park
A 38-year-old woman presented with antiarrhythmic drug-refractory atrial tachycardia (AT). Holter recording demonstrated incessant episodes of AT followed by a long sinus pause. Electrophysiologic study revealed that the earliest endocardial activation was observed at the neck of the left atrial appendage (LAA). After unsuccessful endocardial ablation, epicardial access via a percutaneous subxiphoid approach demonstrated that the earliest epicardial atrial activation was observed on the opposite site to the endocardial LAA neck suggestive of ligament of Marshall (LOM) muscle sleeve as regarding the epicardial sharp potentials under guidance of a circular mapping catheter...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28065908/ticagrelor-but-not-clopidogrel-active-metabolite-displays-antithrombotic-properties-in-the-left-atrial-endocardium
#17
Martin F Reiner, Alexander Breitenstein, Erik W Holy, Martina Glanzmann, Heidi Amstalden, Simon F Stämpfli, Nicole R Bonetti, Volkmar Falk, Stephan Keller, Gianluigi Savarese, Stefano Benussi, Francesco Maisano, Thomas F Lüscher, Jürg H Beer, Jan Steffel, Giovanni G Camici
AIMS: Oral anticoagulation is considered standard therapy for stroke prevention in atrial fibrillation (AF). Endocardial activation triggers expression of pro-thrombotic mediators including tissue factor (TF) and plasminogen activator inhibitor-1 (PAI-1), and contributes to thrombus formation in the left atrial appendage (LAA) of AF patients. Recently, pleiotropic effects of specific P2Y12 receptor antagonists were demonstrated; however, whether these drugs possess antithrombotic effects on LAA endocardial cells currently remains unknown...
January 8, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28065447/percutaneous-left-atrial-appendage-closure-followed-by-single-antiplatelet-therapy-short-and-mid-term-outcomes
#18
Zakaria Jalal, Marie-Lou Dinet, Nicolas Combes, Xavier Pillois, Pauline Renou, Igor Sibon, Xavier Iriart, Jean-Benoît Thambo
BACKGROUND: After left atrial appendage closure (LAAC), various antithrombotic protocols have been suggested, but the optimal post-procedural antithrombotic strategy is still under debate. AIMS: To investigate the efficacy and safety of LAAC with an AMPLATZER™ Cardiac Plug (ACP) device (St. Jude Medical, Minneapolis, MN, USA) followed by single antiplatelet therapy. METHODS: Consecutive patients with non-valvular atrial fibrillation and a contraindication for oral anticoagulants who underwent LAAC with an ACP device between 2012 and 2014 in two French centres were included...
January 3, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28062018/atrial-fibrillation-in-a-structurally-normal-heart-during-pregnancy-a-review-of-cases-from-a-registry-and-from-the-literature
#19
Nadine Sauvé, Évelyne Rey, Annabelle Cumyn
OBJECTIVES: Atrial fibrillation (AF) in a structurally normal heart is rare during pregnancy. We wished to use our experience to expand the literature on the causes and management of this condition. METHODS: All members of Groupe d'Étude en Médecine Obstétricale du Québec (GÉMOQ) were invited to record cases of AF in a structurally normal heart during pregnancy to the group's Registry. We searched Medline, PubMed, and Google Scholar (1946 to 15 April 2016) for relevant articles using the key words "atrial fibrillation" and "pregnancy...
January 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28057808/heartbeat-left-atrial-appendage-occlusion-for-stroke-prevention
#20
EDITORIAL
Catherine M Otto
No abstract text is available yet for this article.
January 15, 2017: Heart: Official Journal of the British Cardiac Society
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