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arterial fibrillation

S Arques
Cardiovascular diseases are the leading cause of death worldwide. Conceptually, endothelial dysfunction, inflammatory status and oxidative stress are at the forefront in the onset and development of most cardiovascular diseases, particularly coronary artery disease and heart failure. Serum albumin, the most abundant plasma protein, has many physiological properties, including anti-inflammatory, antioxidant and antiplatelet aggregation activity. It also plays an essential role in the fluid exchange across the capillary membrane...
March 12, 2018: Annales de Cardiologie et D'angéiologie
Sarah Soo-Hoo, Samantha Nemeth, Onur Baser, Michael Argenziano, Paul Kurlansky
Objective: To explore the impact of racial and ethnic diversity on the performance of cardiac surgical risk models, the Chinese SinoSCORE was compared with the Society of Thoracic Surgeons (STS) risk model in a diverse American population. Methods: The SinoSCORE risk model was applied to 13 969 consecutive coronary artery bypass surgery patients from twelve American institutions. SinoSCORE risk factors were entered into a logistic regression to create a 'derived' SinoSCORE whose performance was compared with that of the STS risk model...
2018: Heart Asia
Uma Mahesh R Avula, Jonathan J Hernandez, Masatoshi Yamazaki, Carmen R Valdivia, Antony Chu, Alvaro Rojas-Pena, Kuljeet Kaur, Roberto Ramos-Mondragón, Justus M Anumonwo, Stanley Nattel, Héctor H Valdivia, Jérôme Kalifa
BACKGROUND: The mechanisms underlying spontaneous atrial fibrillation (AF) associated with atrial ischemia/infarction are incompletely elucidated. Here, we investigate the mechanisms underlying spontaneous AF in an ovine model of left atrial myocardial infarction (LAMI). METHODS AND RESULTS: LAMI was created by ligating the atrial branch of the left anterior descending coronary artery. ECG loop recorders were implanted to monitor AF episodes. In 7 sheep, dantrolene-a ryanodine receptor blocker-was administered in vivo during the 8-day observation period (LAMI-D, 2...
March 2018: Circulation. Arrhythmia and Electrophysiology
Markus Kneihsl, Christian Enzinger, Kurt Niederkorn, Gerit Wünsch, Lisa Müller, Valeriu Culea, Andreas Lueger, Franz Fazekas, Thomas Gattringer
BACKGROUND: Stroke has become a treatable condition with increasing evidence of treatment benefits in older people. However, stroke mimics in geriatric patients are especially prevalent, causing incorrect suspicion and consecutive burden to patients and emergency room resources. We therefore examined the dimension of this problem by investigating emergency room admissions from nursing homes for suspected stroke. METHODS: We performed a retrospective cohort study of all nursing home residents who were admitted to the neurological emergency room of our primary and tertiary care university hospital between 2013 and 2015...
March 14, 2018: Cerebrovascular Diseases
Haruhiko Shiiya, Yasuhiro Suzuki, Shigeo Yamazaki, Kichizo Kaga
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) can be associated with life-threatening complications such as paradoxical embolization, cerebral abscess, and hemothorax. Therefore, all adults with PAVMs should be offered treatment. Percutaneous transcatheter embolization is the first-line treatment, but 5-25% of cases require further treatment due to persistence after embolization. Recently, the role of minimally invasive thoracic surgery as a definitive treatment has been evaluated...
March 12, 2018: Surgical Case Reports
Fabian Plank, Christoph Beyer, Guy Friedrich, Markus Stühlinger, Florian Hintringer, Wolfgang Dichtl, Matthias Wildauer, Gudrun Feuchtner
OBJECTIVE: Vitamin K antagonists (VKA) are associated with increased vascular calcification which may lead to an elevated cardiovascular risk. If the direct anticoagulants (DOACs) have similar negative vascular effects is unknown. We evaluated the influence of different anticoagulation strategies on coronary artery disease (CAD) using coronary computed tomography angiography (CTA). METHODS: Overall 702 consecutive patients with non-valvular atrial fibrillation (AF) who underwent CTA for AF ablation planning were enrolled and stratified according to their anticoagulation into VKA, DOAC (all agents) and a control group without oral anticoagulation...
March 6, 2018: International Journal of Cardiology
Bo Wen, Lei Xu, Junfu Liang, Zhanming Fan, Zhonghua Sun
OBJECTIVE: The purpose of this study was to evaluate the image quality and radiation dose of computed tomography (CT) coronary angiography using a 256-row detector CT scanner in a single cardiac cycle in patients with atrial fibrillation (AF). METHODS: Seventy consecutive patients (41 men and 29 women; age range was from 37 to 84 years, mean age was 61.7 ± 10.2 years; body mass index range was from 15.08 to 36.45 kg/m, mean body mass index was 25.9 ± 3.5 kg/m) with persistent or paroxysmal AF during acquisition, who were not receiving any medications for heart rate (HR) regulation, were imaged with a 256-row detector CT scanner (Revolution CT, GE healthcare)...
March 2018: Journal of Computer Assisted Tomography
Stephen A McCullough, Michael A Fifer, Pouya Mohajer, Patricia A Lowry, Caitlin O'Callaghan Reen, Aaron L Baggish, Gus J Vlahakes, Yuichi J Shimada
BACKGROUND: The clinical characteristics associated with elevated right atrial pressure (RAP) in hypertrophic cardiomyopathy (HCM) are unknown. Few data exist as to whether elevated RAP has prognostic implications in patients with HCM. This study investigated the clinical correlates and prognostic value of elevated RAP in HCM.Methods and Results:This retrospective cohort study was performed on 180 patients with HCM who underwent right heart catheterization between 1997 and 2014. Elevated RAP was defined as >8 mmHg...
March 9, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Matthew J Price
Resection of the left atrial appendage (LAA) to prevent recurrent arterial emboli in patients with atrial fibrillation was first suggested more than 60 years ago. Longer-term follow-up from randomized studies of the safety and efficacy of transcatheter LAA occlusion has recently been completed; data from large, observational cohorts are being reported. These recent data provide further insights into procedural safety with current techniques and the ability of LAA closure to reduce thromboembolic stroke compared with warfarin anticoagulation...
April 2018: Interventional Cardiology Clinics
J Scott Rankin, Harold G Roberts, Vinay Badhwar
No abstract text is available yet for this article.
February 17, 2018: Journal of Thoracic and Cardiovascular Surgery
Hannu Kokki, Martin Maaroos, Sten Ellam, Jari Halonen, Ilkka Ojanperä, Merja Ranta, Veli-Pekka Ranta, Aleksandra Tolonen, Oscar Lindberg, Matias Viitala, Juha Hartikainen
PURPOSE: Cardiac surgery and conventional extracorporeal circulation (CECC) impair the bioavailability of drugs administered by mouth. It is not known whether miniaturized ECC (MECC) or off-pump surgery (OPCAB) affect the bioavailability in similar manner. We evaluated the metoprolol bioavailability in patients undergoing CABG surgery with CECC, MECC, or having OPCAB. METHODS: Thirty patients, ten in each group, aged 44-79 years, scheduled for CABG surgery were administered 50 mg metoprolol by mouth on the preoperative day at 8-10 a...
March 9, 2018: European Journal of Clinical Pharmacology
Mohammad R Ostovaneh, Bharath Ambale-Venkatesh, Tomoki Fuji, Hooman Bakhshi, Ravi Shah, Venkatesh L Murthy, Russell P Tracy, Eliseo Guallar, Colin O Wu, David A Bluemke, João A C Lima
BACKGROUND: The association of cardiovascular diseases (CVD) with liver fibrosis is poorly understood. We aim to assess the association of liver fibrosis by T1-mapping magnetic resonance imaging and CVD in MESA (Multi-Ethnic Study of Atherosclerosis). METHODS AND RESULTS: MESA enrolled 6814 participants free of clinical CVD at baseline (2000-2002). A subsample of participants underwent T1-mapping magnetic resonance imaging 10 years after the baseline (Y10 MESA exam, 2010-2012)...
March 2018: Circulation. Cardiovascular Imaging
S Chris Malaisrie, Patrick M McCarthy, Jane Kruse, Roland Matsouaka, Adin-Cristian Andrei, Maria V Grau-Sepulveda, Daniel J Friedman, James L Cox, J Matthew Brennan
BACKGROUND: This study compares early and late outcomes in patients undergoing coronary artery bypass grafting with and without preoperative atrial fibrillation in a contemporary, nationally representative Medicare cohort. METHODS: In the Medicare-Linked Society of Thoracic Surgeons database, 361,138 patients underwent isolated coronary artery bypass from 2006 to 2013, of whom 37,220 (10.3%) had preoperative atrial fibrillation; 13,161 (35.4%) were treated with surgical ablation and were excluded...
February 9, 2018: Journal of Thoracic and Cardiovascular Surgery
Amartya Kundu, Aditya Vaze, Partha Sardar, Ahmed Nagy, Wilbert S Aronow, Naomi F Botkin
PURPOSE OF REVIEW: Variant angina, which is characterized by recurrent chest pain and transient ECG changes along with angiographic evidence of coronary artery spasm, generally has a favorable prognosis. However, episodes of ischemia caused by vasospasm may lead to potentially life-threatening ventricular arrhythmias and cardiac arrest, even in patients with no history of prior cardiac disease. This review describes the epidemiology, pathogenesis, clinical spectrum, and management of variant angina, as well as outcomes in patients who present with aborted sudden cardiac death (ASCD)...
March 8, 2018: Current Cardiology Reports
Shengqun Liu, Zhanwen Li, Zhe Liu, Zhenhua Hu, Gaifang Zheng
The aim of this study was to systematically evaluate the effect of blood transfusion (BT) on postoperative atrial fibrillation (AF) in adult patients who had undergone coronary artery bypass grafting (CABG) surgery.PubMed, Embase, and Cochrane Library databases from inception to January 2017 were searched. Cohort studies were searched that evaluated the association between BT and the risk of postoperative AF in adult patients who had undergone CABG surgery. Study quality was assessed by using the Newcastle-Ottawa scale (NOS)...
March 2018: Medicine (Baltimore)
Jackson J Liang, Melissa A Elafros, Michael T Mullen, Daniele Muser, Tatsuya Hayashi, Andres Enriquez, Rajeev K Pathak, Erica S Zado, Pasquale Santangeli, Jeffrey S Arkles, Robert D Schaller, Gregory E Supple, David S Frankel, Fermin C Garcia, Rajat Deo, David Lin, Michael P Riley, Saman Nazarian, Sanjay Dixit, Francis E Marchlinski, David J Callans
INTRODUCTION: Whether successful catheter ablation for atrial fibrillation (AF) reduces risk of cerebrovascular events (CVEs) remains controversial and whether oral anticoagulation therapy (OAT) can be safely discontinued in patients rendered free of AF recurrences remains unknown. We evaluated OAT use patterns and examined long-term rates of CVEs (stroke/TIA) and major bleeding episodes (MBEs) in patients with nonparoxysmal AF treated with catheter ablation. METHODS AND RESULTS: Four hundred patients with nonparoxysmal AF (200 persistent, 200 longstanding persistent; mean age 60...
March 7, 2018: Journal of Cardiovascular Electrophysiology
Folkert Steinhagen, Maximilian Kanthak, Guido Kukuk, Christian Bode, Andreas Hoeft, Stefan Weber, Se-Chan Kim
INTRODUCTION: A significant increase of the p-wave of a real-time intracavitary electrocardiography is a reliable and safe method to confirm the central venous catheter tip position close to the atrium. However, conflicting data about the feasibility of electrocardiography exist in patients with atrial fibrillation. METHODS: An observational prospective case-control cohort study was set up to study the feasibility and accuracy of the electrocardiography-controlled central venous catheter tip placement in 13 patients with atrial fibrillation versus 10 patients with sinus rhythm scheduled for elective surgery...
February 1, 2018: Journal of Vascular Access
Barış Akça, Nevzat Erdil, Mehmet Cengiz Colak, Olcay Murat Disli, Bektas Battaloglu, Cemil Colak
BACKGROUND:  We aimed to investigate the risk factors of post-coronary artery bypass grafting (CABG) atrial fibrillation (AF) in male and female patients without any history of AF, to identify the sex-specific risk factors, and to examine the effect of sex-specific risk factors on the overall population. METHODS:  This retrospective study was conducted using the hospital database with 4,758 patients who underwent CABG surgery. Among them, 2,836 patients with complete data participated in this study...
March 6, 2018: Thoracic and Cardiovascular Surgeon
Sebastian Voicu, Georgios Sideris, Jean-Guillaume Dillinger, Demetris Yannopoulos, Nicolas Deye, Chantal Kang, Michel Bonneau, Jason Bartos, Antoni Kedra, Sophie Bailliart, Adrien Pasteur-Rousseau, Guy Amah, Philippe Bonnin, Jacques Callebert, Patrick Henry, Bruno Megarbane
Circulatory failure following cardiac arrest (CA) requires catecholamine support and occasionally veno-arterial extracorporeal membrane oxygenation (vaECMO). VaECMO-generated blood flow is continuous and retrograde, increasing ventricular stroke work. Our aim was to assess the benefit of a device generating a pulsatile vaECMO flow synchronized with the heart rhythm lowering systolic vaECMO output on the left ventricular ejection fraction (LVEF) and pulmonary capillary pressure (Pcap) after CA. This experimental randomized study in pigs compared standard nonpulsatile vaECMO (control) with pulsatile synchronized vaECMO (study) group using a pulsatility-generating device...
March 6, 2018: Artificial Organs
Sakiko Miyazaki, Katsumi Miyauchi, Hidemori Hayashi, Ryota Tanaka, Shuko Nojiri, Tadashi Miyazaki, Masataka Sumiyoshi, Satoru Suwa, Yuji Nakazato, Takao Urabe, Nobutaka Hattori, Hiroyuki Daida
BACKGROUND: The management of atrial fibrillation (AF) has evolved with the development of direct oral anticoagulants (DOACs), but data on their clinical effectiveness and safety outside clinical trial settings are limited. METHOD: The RAFFINE registry is an observational, multicenter, prospective registry of Japanese patients with AF, designed to follow clinical events over 3 years. Patient enrollment was conducted from 2013 to 2015 at university hospitals, general hospitals, and private clinics to ensure inclusion of a broad spectrum of representative AF patients...
March 1, 2018: Journal of Cardiology
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