Results 11 to 20 of about 13,694 (255)

Dynamic spatial dispersion of repolarization is present in regions critical for ischemic ventricular tachycardia ablation

Heart Rhythm O2, 2021
Background: The presence of dynamic substrate changes may facilitate functional block and reentry in ventricular tachycardia (VT). Objective: We aimed to study dynamic ventricular repolarization changes in critical regions of the VT circuit during sensed
Neil T. Srinivasan, MBChB, PhD, Jason Garcia, BS, Richard J. Schilling, MbChB, MD, FHRS, Syed Ahsan, MD, Ross J. Hunter, MBChB, PhD, Martin Lowe, MD, PhD, Anthony W. Chow, MD, Pier D. Lambiase, BM BCh, PhD, FHRS   +7 more
doaj   +1 more source

Dissociated late potentials during sinus rhythm after radiofrequency ablation in a patient with postinfarction ventricular tachycardia

Journal of Arrhythmia, 2014
A 72-year-old man with ischemic cardiomyopathy was admitted for the treatment of ventricular tachycardia (VT). Because his VT was poorly tolerated hemodynamically, substrate mapping was performed. The map revealed the presence of low-voltage areas in the
Shiro Nakahara, MD, Yuichi Hori, MD, Sayuki Kobayashi, MD, Naofumi Tsukada, MD, Yoshihiko Sakai, MD, Kan Takayanagi, MD   +5 more
doaj   +1 more source

Advanced management of ventricular arrhythmias in chronic Chagas cardiomyopathy

Heart Rhythm O2, 2021
Chagas cardiomyopathy is a parasitic infection caused by Trypanosoma cruzi. Structural and functional abnormalities are the result of direct myocardial damage by the parasite, immunological reactions, dysautonomia, and microvascular alterations.
David Santacruz, MD, Fernando Rosas, MD, Carina Abigail Hardy, MD, Diego Ospina, MD, Andrea Nathalie Rosas, MD, Juan Manuel Camargo, MD, Juan José Bermúdez, MD, Juan Felipe Betancourt, MD, Víctor Manuel Velasco, MD, Mario D. González, MD, FHRS   +9 more
doaj   +1 more source

EFFECT OF NOISE ON IDENTIFICATION OF VENTRICULAR LATE POTENTIALS

Pakistan Armed Forces Medical Journal, 2020
Objective: To determine the effect of noise on identification of ventricular late potentials. Study Design: Cross sectional comparative study. Place and Duration of Study: Armed Forces Institute of Cardiology/National Institute of Heart Diseases ...
Muhammad Alamgir Khan, Syed Muhammad Imran Majeed, Madiha Sarwar   +2 more
doaj   +2 more sources

Late ventricular potentials in chronic heart failure patients with preserved ejection fraction

Alʹmanah Kliničeskoj Mediciny, 2017
Rationale: More than half of patients with chronic heart failure have a preserved left ventricular ejection fraction. It has been found that sudden cardiac death is more frequent in this patient category.
A. G. Dushina, R. A. Libis
doaj   +1 more source

Analysis of the spatial and transmural dispersion of repolarization and late potentials derived using signal-averaged vector-projected 187-channel high-resolution electrocardiogram in patients with early repolarization pattern

Journal of Arrhythmia, 2014
Background: Electrophysiological characteristics of early repolarization syndrome (ERS), i.e., the spatial and transmural dispersion of ventricular repolarization and ventricular late potentials can be evaluated using a signal-averaged vector-projected ...
Kimie Ohkubo, MD, Ichiro Watanabe, MD, Yasuo Okumura, MD, Kazumasa Sonoda, MD, Naoko Sasaki, MD, Rikitake Kogawa, MD, Keiko Takahashi, MD, Toshiko Nakai, MD, Satoshi Kunimoto, MD, Yuji Kasamaki, MD, Atsushi Hirayama, MD   +10 more
doaj   +1 more source

Association of non‐invasive electrocardiographic risk factors with left ventricular systolic function in post‐myocardial infarction patients with mildly reduced or preserved ejection fraction: Insights from the PRESERVE‐EF study

Annals of Noninvasive Electrocardiology, 2022
Background Electrocardiographic non‐invasive risk factors (NIRFs) have an important role in the arrhythmic risk stratification of post‐myocardial infarction (post‐MI) patients with preserved or mildly reduced left ventricular ejection fraction (LVEF ...
Konstantinos P. Tsimos, Panagiotis Korantzopoulos, Petros Arsenos, Ioannis Doundoulakis, Dimitrios Tsiachris, Christos‐Konstantinos Antoniou, Konstantinos Krikonis, Skevos Sideris, Polychronis Dilaveris, Konstantinos Triantafyllou, Stergios Soulaidopoulos, Emmanuel Kanoupakis, Nikolaos Fragakis, Antonios Sideris, Konstantinos Trachanas, Efstathios Iliodromitis, Dimitrios Tousoulis, Konstantinos Tsioufis, Theofilos M. Kolettis, Konstantinos A. Gatzoulis   +19 more
doaj   +1 more source

ASSOCIATION OF VENTRICULAR LATE POTENTIALS WITH LEFT VENTRICULAR HYPERTROPHY IN PATIENTS WITH SYSTEMIC ARTERIAL HYPERTENSION

Pakistan Armed Forces Medical Journal, 2016
Objective: To determine the association of ventricular late potentials with left ventricular hypertrophy in patients with systemic arterial hypertension. Study Design: Cohort retrospective study.
Bushra Riaz, Syed Muhammad Imran Majeed, Muhammad Alamgir Khan   +2 more
doaj   +2 more sources

ASSOCIATION OF VENTRICULAR LATE POTENTIALS WITH MITRAL REGURGITATION IN PATIENTS WITH MITRAL VALVE PROLAPSE

Pakistan Armed Forces Medical Journal, 2015
Objective: To determine association of ventricular late potentials with mitral valve regurgitation in patients with mitral valve prolapse. Study Design: Descriptive cross sectional study.
Muhammad Alamgir Khan, Syed Muhammad Imran Majeed, Madiha Sarwar   +2 more
doaj   +2 more sources

TRPML1 agonist ML‐SA5 attenuates pulmonary fibroblast activation by suppressing mTOR and restoring autophagic flux

FEBS Open Bio, EarlyView.
TGF‐β1 stimulation downregulates lysosomal channel TRPML1 in pulmonary fibroblasts. The TRPML1 agonist ML‐SA5 suppressed fibroblast‐to‐myofibroblast activation and collagen production. Mechanistically, ML‐SA5 inhibited mTOR phosphorylation, restored autophagic flux, and its effects were enhanced by rapamycin (mTOR inhibitor) and reversed by MHY1485 ...
Jiatong Yao, Xiaoting Kang, Lulu Meng, Shaoxuan Zhang, Qiujie Li, Jinyu Zhou, Mengyue Xue, Chu Li, Hua Zhu, Pengzhou Hang, Jing Zhao   +10 more
wiley   +1 more source