Results 61 to 70 of about 3,654,033 (309)

Complex Interplay Between Determinants of Pacing and Performance During 20 km Cycle Time Trials [PDF]

open access: yes, 2012
Purpose: This study examined the determinants of pacing strategy and performance during self paced maximal exercise. Methods: Eight well trained cyclists completed two 20 km time trials.
St Clair Gibson, Alan   +4 more
core  

Deterioration of Cardiac Function Complicated by Ventricular Tachycardia After the Implantation of an Artificial Cardiac Pacemaker and Upgrading to CRT‐D: One Case Report

open access: yesClinical Case Reports
We reported an aging male patient who experienced deterioration of cardiac function accompanied by the onset of ventricular tachycardia 10 months after right ventricular pacing (RVP).
Lei Zhao, Ruibin Li, Yi Zhang, Long Bai
doaj   +1 more source

His Bundle Pacing: A New Strategy for Physiological Ventricular Activation

open access: yesJournal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2019
T he specialized fibers of the His-Purkinje system are essential for the maintenance of the coordinated, synchronous ventricular contraction via endocardial to epicardial and apical to basal electrical activation.
A. Lewis   +4 more
semanticscholar   +1 more source

EHRA clinical consensus statement on conduction system pacing implantation: executive summary. Endorsed by the Asia-Pacific Heart Rhythm Society (APHRS), Canadian Heart Rhythm Society (CHRS) and Latin-American Heart Rhythm Society (LAHRS)

open access: yesEuropace, 2023
Conduction system pacing (CSP) has emerged as a more physiological alternative to right ventricular pacing and is also being used in selected cases for cardiac resynchronization therapy. His bundle pacing was first introduced over two decades ago and its
H. Burri   +12 more
semanticscholar   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

open access: yesFEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova   +2 more
wiley   +1 more source

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

open access: yes, 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
Jean-Jacques, Blanc   +5 more
core  

Visualization of Left Ventricular Endocardium Activation Time during Cardiac Conduction System Pacing

open access: yesУкраїнський журнал серцево-судинної хірургії, 2023
Introduction. Right ventricular myocardial pacing leads to asynchronous contraction of the left ventricle (LV) and can impair its contractility over time.
Eugene O. Perepeka
doaj   +1 more source

Understanding and Mitigating the Risk of Accelerated Biological Aging in Survivors of Cancer: A Scoping Review

open access: yesAging and Cancer, EarlyView.
Cancer treatment is associated with measurable acceleration of biological aging across epigenetic, telomere, senescence, and immune biomarkers. However, biomarker validation and interventional strategies remain limited, especially in hematologic malignancies, underscoring the need for standardized multi‐omic aging assessments and adequately powered ...
Moataz Ellithi   +3 more
wiley   +1 more source

Cardiac Device Algorithms for Optimal Outcomes in Patients with Sick Sinus Syndrome [PDF]

open access: yes, 2013
Sick sinus syndrome (SSS) is a relatively common chronic condition affecting the electrical conduction system of the heart. In the absence of any reversible cause of SSS, the most effective treatment is implantation of a permanent pacemaker to maintain ...
CURRY, JANE,KATHERINE
core  

Single‐chamber leadless pacemaker for atrial synchronous or ventricular pacing

open access: yes, 2020
Leadless pacing is a major breakthrough in the management of bradyarrhythmia. Results of initial clinical trials that have demonstrated a significant reduction in acute and long-term pacing-related complications have been confirmed by real-world ...
Yap‐Hang Chan   +7 more
core   +1 more source

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