Results 191 to 200 of about 29,656 (290)

Effect and benefit of percutaneous coronary intervention in chronic total occlusion on ventricular repolarization: QT correction and dispersion. [PDF]

J Med Life, 2022
Al Alwany AA.
europepmc   +1 more source

When Trabeculations Disrupt Conduction: Left Ventricular Noncompaction Presenting With Symptomatic Bradycardia and Isorhythmic Dissociation

Clinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT In young patients with unexplained symptomatic bradycardia, LVNC should be considered even when initial echocardiography is equivocal. Precise ECG interpretation is essential—AV dissociation driven by a ventricular escape rhythm must be distinguished from true AV block, as this distinction directly determines whether cardiac MRI, genetic ...
Talha Shamshad, Ryan Salama, Jurgen Shtembari, Mounica Vorla, Muhammad Asif, Sanchit Duhan, Mohammad Al‐Akchar, Osama Alsara   +7 more
wiley   +1 more source

The interplay of heart rate variability and ventricular repolarization parameters in the obese state: a review. [PDF]

Cardiovasc Endocrinol Metab
Tomar A, Ahluwalia H, Ramkumar S, Pattnaik S, Nandi D, Raturi P.   +5 more
europepmc   +1 more source

Ventricular repolarization heterogeneity in patients with COVID-19: Original data, systematic review, and meta-analysis. [PDF]

Clin Cardiol, 2022
Mahmoudi E, Mollazadeh R, Mansouri P, Keykhaei M, Mirshafiee S, Hedayat B, Salarifar M, Yuyun MF, Yarmohammadi H.   +8 more
europepmc   +1 more source

P2X7 receptors promote atrial remodeling and atrial fibrillation susceptibility via reactive oxygen species‐mediated mitogen‐activated protein kinase signaling activation

Journal of Cell Communication and Signaling, Volume 20, Issue 2, June 2026.
Abstract Atrial fibrillation (AF), the most common clinical arrhythmia, is driven by inflammatory activation and oxidative stress, though precise molecular links remain unclear. This study identifies the P2X7 receptor as a key upstream regulator orchestrating proarrhythmic atrial remodeling through reactive oxygen species (ROS)‐mediated mitogen ...
Lingnan Zhang, Yeran Zhu, Xinshun Gu
wiley   +1 more source

Impact of Different Metabolic Indicators on Ventricular Repolarization Indices in Obese Children: A Case Control Study. [PDF]

Clin Med Insights Endocrinol Diabetes
El Sehmawy AA, Fawaz RAES, Agiba NA, Elsherbiny EA, Agaba NF, Sayed Mohammed D, Mahmoud Nasr H, Diab FEA, Ahmed AM, Issa Mahfouz S, Okda HT, Ahmed DS.   +11 more
europepmc   +1 more source

From Molecules to Machines: An Integrative Framework Linking Molecular Pathogenesis, Multi‐Factorial Risk, Risk Stratification, Clinical Management, and Artificial Intelligence in QT Prolongation and Sudden Cardiac Death

Clinical Cardiology, Volume 49, Issue 6, June 2026.
An integrative conceptual framework linking the five principal domains addressed in this review. Beginning at the molecular level, loss‐of‐function mutations in KCNQ1 and KCNH2 reduce outward repolarizing currents (IKs and IKr), while gain‐of‐function SCN5A mutations augment late inward sodium current (INa), establishing the genetic substrate for ...
Mojtaba Farjam, Mohammad Hosein Yazdanpanah, Narges Fereydouni   +2 more
wiley   +1 more source

Analysis of ventricular repolarization parameters and heart rate variability in obesity: a comparative study. [PDF]

Sci Rep
Tomar A, Ahluwalia H, Isser HS, Gulati S, Kumar P, Yadav I.   +5 more
europepmc   +1 more source

Electronic cigarettes prolong ventricular repolarization in people who smoke tobacco cigarettes: implications for harm reduction.

Am J Physiol Heart Circ Physiol, 2023
Ruedisueli I, Lakhani K, Nguyen R, Gornbein J, Middlekauff HR.   +4 more
europepmc   +1 more source

Ventricular Repolarization and the Long QT Syndrome

, 2005
In 1895 Willem Einthoven first described the electrocardiogram. The electrical activation of the heart and its translation into the body surface ECG was revealed by Durrer in 1970. Yet, 100 years after the first ECG, we still don't understand the repolarization of the heart, and most 'knowledge' on the T-wave and ECG interpretation therefore is ...
openaire   +2 more sources