Results 41 to 50 of about 88,687 (262)

Changes of Sympathetic Activity in Patient with Chronic Atrial Fibrillation and Severe Congestive Heart Failure Treated with Biventricular Pacing

Journal of Arrhythmia, 2006
The patient was a 64-year-old man with chronic atrial fibrillation with bradycardia. Left ventricular ejection fraction was 34%. He was treated with biventricular pacing. Heart failure improved from NYHA class III to II.
Kohei Matsushita, MD, Toshiyuki Ishikawa, MD, Shinichi Sumita, MD, Tsukasa Kobayashi, MD, Hideyuki Ogawa, MD, Noriko Inoue, MD, Katsumi Matsumoto, MD, Minoru Taima, MD, Ichirou Nakazawa, MD, Teruyasu Sugano, MD, Tomoaki Ishigami, MD, Kazuaki Uchino, MD, Kazuo Kimura, MD, Satoshi Umemura, MD   +13 more
doaj   +1 more source

Permanent pacemaker dependency in patients with new left bundle branch block and new first degree atrioventricular block after transcatheter aortic valve implantation

Scientific Reports, 2021
Conduction disorders with need for permanent pacemaker (PPM) implantation remain frequent complications after transcatheter aortic valve implantation (TAVI).
Bonnie Hartrampf, David Jochheim, Julius Steffen, Thomas Czermak, Sebastian Sadoni, Erik Lemmermöhle, Ina Klier, Heidi L. Estner, Steffen Massberg, Julinda Mehilli, Korbinian Lackermair, Stephanie Fichtner   +11 more
doaj   +1 more source

Left Ventricular Pacing In Patients With Congestive Heart Failure [PDF]

, 2006
Cardiac resynchronisation therapy (CRT) using biventricular (BIV) pacing has proved its effectiveness to correct myocardial asynchrony and improve clinical status of patients with severe congestive heart failure (CHF) and widened QRS. Despite a different
Etienne, Yves, Jean-Jacques, Blanc, Marjaneh, Fatemi   +2 more
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Indeterminacy of Spatiotemporal Cardiac Alternans

, 2008
Cardiac alternans, a beat-to-beat alternation in action potential duration (at the cellular level) or in ECG morphology (at the whole heart level), is a marker of ventricular fibrillation, a fatal heart rhythm that kills hundreds of thousands of people ...
A. H. Nayfeh, D. M. Bers, D. S. Rubenstein, E. M. Cherry, G. W. Beeler, J. J. Fox, J. M. Pastore, J.J. Fox, M. Endo, M. L. Riccio, R. Plonsey, Xiaopeng Zhao   +11 more
core   +2 more sources

Pacemaker-induced atrial fibrillation reconsidered—associations with different pacing sites and prevention approaches

Frontiers in Cardiovascular Medicine
The incidence of atrial fibrillation (AF) is significantly higher in patients with pacemakers than in the general population, which could be due to patient characteristics and the diagnostic tool of the pacemaker in detecting atrial high-rate episodes ...
Fabienne Kreimer, Michael Gotzmann
doaj   +1 more source

Ventricular pacing – Electromechanical consequences and valvular function

Indian Pacing and Electrophysiology Journal, 2016
Although great strides have been made in the areas of ventricular pacing, it is still appreciated that dyssynchrony can be malignant, and that appropriately placed pacing leads may ameliorate mechanical dyssynchrony.
Elisa Ebrille, Christopher V. DeSimone, Vaibhav R. Vaidya, Anwar A. Chahal, Vuyisile T. Nkomo, Samuel J. Asirvatham   +5 more
doaj   +1 more source

Clinical Outcomes in Patients With Left Bundle Branch Area Pacing vs. Right Ventricular Pacing for Atrioventricular Block

Frontiers in Cardiovascular Medicine, 2021
Background: Left bundle branch area pacing (LBBAP) is a novel pacing modality with stable pacing parameters and a narrow-paced QRS duration. We compared heart failure (HF) hospitalization events and echocardiographic measures between LBBAP and right ...
Xiaofei Li, Junmeng Zhang, Chunguang Qiu, Zhao Wang, Hui Li, Kunjing Pang, Yan Yao, Zhimin Liu, Ruiqin Xie, Yangxin Chen, Yongquan Wu, Xiaohan Fan   +11 more
doaj   +1 more source

Role of Catheter Ablation in Arrhythmogenic Right Ventricular Dysplasia [PDF]

, 2005
Arrhythmogenic right ventricular dysplasia/cardiomyopathy is a disorder characterized by frequent ventricular tachycardia originating from the right ventricle and fibro-fatty replacement of right ventricular myocardium. Though the disorder was originally
Fontaine, Guy, Francis, Johnson
core   +2 more sources

Acute Hemodynamic Effects of Cardiac Resynchronization Therapy Versus Alternative Pacing Strategies in Patients With Left Ventricular Assist Devices

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background The hemodynamic effects of cardiac resynchronization therapy in patients with left ventricular assist devices (LVADs) are uncharacterized. We aimed to quantify the hemodynamic effects of different ventricular pacing configurations in patients ...
Brett Tomashitis, Catalin F. Baicu, Ross A. Butschek, Gregory R. Jackson, Jeffrey Winterfield, Ryan J. Tedford, Michael R. Zile, Michael R. Gold, Brian A. Houston   +8 more
doaj   +1 more source

Methods of Assessment and Clinical Relevance of QT Dynamics [PDF]

, 2005
The dependence on heart rate of the QT interval has been investigated for many years and several mathematical formulae have been proposed to describe the QT interval/heart rate (or QT interval/RR interval) relationship. While the most popular is Bazett’s
Agata, Musialik-Lydka, Anna, Sliwinska, Beata, Sredniawa, Piotr, Jarski, Zbigniew, Kalarus   +4 more
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