Results 101 to 110 of about 49,144 (342)

Ventricular torsional relation to ventricular fiber arrangement [PDF]

arXiv, 2014
Left ventricular torsion from helically oriented myofibers is a key parameter of cardiac performance. Physicians observing heart motion on echocardiograms, during cardiac catheterization, or in the operating room, are impressed by the twisting or rotary motion of the left ventricle during systole.
arxiv  

Inter‐atrial block as a predictor of adverse outcomes in patients with HFpEF

ESC Heart Failure, EarlyView.
Abstract Aims Inter‐atrial block (IAB), a marker of electrical atrial dysfunction, is associated with an increased risk of atrial fibrillation (AF) and adverse events in various populations. The prognostic impact of IAB in heart failure (HF) with preserved ejection fraction (HFpEF) remains unknown.
Jerremy Weerts, Sanne G.J. Mourmans, Helena Lopez‐Martinez, Mar Domingo, Arantxa Barandiarán Aizpurua, Michiel T.H.M. Henkens, Anouk Achten, Josep Lupón, Hans‐Peter Brunner‐La Rocca, Christian Knackstedt, Antoni Bayés‐Genís, Vanessa P.M. van Empel   +11 more
wiley   +1 more source

The diagnostic role of T wave morphology biomarkers in congenital and acquired long QT syndrome: A systematic review

Annals of Noninvasive Electrocardiology, Volume 28, Issue 1, January 2023., 2023
Numerous T wave morphology biomarkers, which can supplement QTc assessment in long QT syndrome (LQTS), have been identified. Their diagnostic capabilities include differentiation of genotypes, identification of concealed LQTS, differentiating acquired LQTS from congenital LQTS; and determining multichannel versus hERG channel blockade.
Daniel T. Tardo, Matthew Peck, Rajesh N. Subbiah, Jamie I. Vandenberg, Adam. P. Hill   +4 more
wiley   +1 more source

Six transition patterns and seven capture types in different left bundle branch bipolar pacing configurations

Frontiers in Cardiovascular Medicine
AimsThis study aims to explore the different transition patterns and capture types during two bipolar pacing tests based on the selective left bundle branch (LBB) capture determined by the continuous pacing and recording technique.MethodsIn total, 67 ...
Lu Zhang, Longfu Jiang, Longfu Jiang, Binbin Luo, Jiabo Shen, Hao Wu, Weifang Zeng   +6 more
doaj   +1 more source

Ventricle Dyssynchrony in Right Ventricle Apex and Right Ventricle Outflow Tract Pacing: Evaluation by Tissue Doppler Imaging

Majalah Kardiologi Indonesia, 2013
Background : Pacemaker lead implantation at right ventricular apex (RVA) or right ventricular outflow tract (RVOT) have different haemodynamic consecuences, due to ventricular dyssynchrony difference. Tissue Dop-pler Imaging (TDI) clearly shown ventricle
Wisnoe Pribadi, Manoefris Kasim, Iwan Dakota   +2 more
doaj   +1 more source

Real‐world outcomes in cardiac resynchronization therapy patients: Primary results of the SMART registry

ESC Heart Failure, EarlyView.
Abstract Aims Cardiac resynchronization therapy (CRT) is guideline recommended for the treatment of symptomatic heart failure (HF) with reduced left ventricular ejection fraction and prolonged QRS. However, patients with common comorbidities, such as persistent/permanent atrial fibrillation (AF), are often under‐represented in clinical trials.
Ignacio García‐Bolao, Roy S. Gardner, Daniel Gras, Antonio D'Onofrio, George Mark, Devi Nair, Nicolas Lellouche, Miroslav Novak, Ronald Lo, Engwooi Chew, David Wright, Andrew Kaplan, Matteo Bertini, Sara Veraghtert, Michelle M. Harbin, Elizabeth Matznick, Patrick Yong, Kenneth M. Stein   +17 more
wiley   +1 more source

Computerized electrocardiogram data transformation enables effective algorithmic differentiation of wide QRS complex tachycardias

Annals of Noninvasive Electrocardiology, Volume 28, Issue 1, January 2023., 2023
Accurate automatic wide QRS complex tachycardia (WCT) differentiation may be accomplished through the use of novel parameters derived from computerized data of the (i) WCT electrocardiogram (ECG) alone and (ii) paired WCT and baseline ECGs. Once automated WCT differentiation models are integrated into commercially available computerized ECG ...
Anthony H. Kashou, Sarah LoCoco, Preet A. Shaikh, Bhavesh B. Katbamna, Ojasav Sehrawat, Daniel H. Cooper, Sandeep S. Sodhi, Phillip S. Cuculich, Marye J. Gleva, Elena Deych, Ruiwen Zhou, Lei Liu, Abhishek J. Deshmukh, Samuel J. Asirvatham, Peter A. Noseworthy, Christopher V. DeSimone, Adam M. May   +16 more
wiley   +1 more source

Cardiopulmonary exercise testing as a prognosis‐assessing tool in heart failure with preserved ejection fraction

ESC Heart Failure, EarlyView.
Abstract Aims Patients with heart failure with preserved ejection fraction represent half of the heart failure patients nowadays, an at least steady trend due to the aging of the population. We investigated whether the parameters obtained from cardiopulmonary exercise testing (CPET) correlated with the prognosis of these patients.
C. Rozados da Conceicao, A. Krannich, V. Zach, R. Pinto, A. Deichl, A. Feuerstein, L. Schleussner, F. Edelmann   +7 more
wiley   +1 more source

How does a CIED presence influence chances and safety of haemodialysis access? Conclusions from over 3000 thoracic venografies

Clinical Physiology and Functional Imaging, Volume 43, Issue 1, Page 47-57, January 2023., 2023
Abstract Patients requiring temporal or permanent catheter or arterio‐venous fistula (AVF) for haemodialysis may be in challenging situation, if they are cardiovascular implantable electronic devices (CIED) carriers. Materials and Methods The authors analysed preoperative venogrphies of 3100 patients referred for transvenous lead extraction for a ...
Marek Czajkowski, Anna Polewczyk, Wojciech Jacheć, Dorota Nowosielecka, Łukasz Tułecki, Paweł Stefańczyk, Andrzej Kutarski   +6 more
wiley   +1 more source

New Concepts in Pacemaker Syndrome

Indian Pacing and Electrophysiology Journal, 2004
After implantation of a permanent pacemaker, patients may experience severe symptoms of dyspnea, palpitations, malaise, and syncope resulting from pacemaker syndrome.
D. Michael Farmer, N. A. Mark Estes, III, Mark S. Link   +2 more
doaj