Results 121 to 130 of about 9,399 (221)

Association Between Sleep Quality and Oxidative Stress in Postoperative Cardiovascular Patients—A Pilot Study

open access: yesJournal of Sleep Research, Volume 35, Issue 5, October 2026.
In 15 postoperative cardiac surgery patients, venous reactive oxygen species (ROS) measured by electron spin resonance (ESR) over 48 h showed no consistent circadian pattern. Higher ROS was associated with lower subjective sleep efficiency and more nocturnal awakenings, but not with other sleep measures.
K. Krawczyk   +10 more
wiley   +1 more source

Impact of Leadless Pacemaker Implantation Position on Subclinical Right Ventricular Perforation

open access: yesPacing and Clinical Electrophysiology, Volume 49, Issue 10, Page 1447-1454, October 2026.
ABSTRACT Introduction Leadless pacemakers are typically implanted in the mid‐septum of the right ventricle (RV) to mitigate the risk of perforation. However, reports on the precise location of these implants are limited. This study aimed to elucidate tine‐based leadless pacemaker position and presence of subclinical RV perforation through computed ...
Young Shin Lee   +16 more
wiley   +1 more source

QT Interval Evaluation in Right Ventricular Pacing: Validation of a Novel Formula

open access: yesPacing and Clinical Electrophysiology, Volume 49, Issue 10, Page 1455-1463, October 2026.
ABSTRACT Background QT interval measurement in the presence of right ventricular pacing (RVP) represents a clinical challenge. We therefore aimed to derive and validate a formula for QT estimation during RVP in a large cohort of pacemaker patients. Methods and Results We prospectively enrolled 100 patients in a derivation cohort and 487 in a validation
Amr Abdin   +9 more
wiley   +1 more source

FGF23 promotes atrial fibrillation susceptibility through ETV1‐dependent sodium channel regulation and calcium handling abnormalities

open access: yesExperimental Physiology, Volume 111, Issue 10, Page 4435-4456, 1 October 2026.
Abstract Fibroblast growth factor 23 (FGF23) is closely associated with atrial fibrillation (AF), yet whether it modulates sodium and calcium currents in atrial myocytes remains unclear. ETV1, a key transcription factor regulating atrial electrical conduction, might also be involved in FGF23‐mediated AF.
Qiaoting Yu   +7 more
wiley   +1 more source

Slow calcium removal contributes to impaired lusitropic response to β‐adrenergic stimulation in HFpEF mice

open access: yesThe Journal of Physiology, Volume 604, Issue 20, Page 8345-8359, 15 October 2026.
Abstract figure legend Heart failure with preserved ejection fraction (HFpEF) is the most common form of heart failure, yet major gaps remain in our understanding of its underlying mechanisms, disease progression and effective treatment strategies. Mice with HFpEF exhibited exercise intolerance and diastolic dysfunction in vivo, while isolated hearts ...
Tamzin Zawadzki   +6 more
wiley   +1 more source

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