Results 141 to 150 of about 1,220,201 (270)

Advanced Conduction Disease After Incident Heart Failure in Myotonic Dystrophy Type 1

Pacing and Clinical Electrophysiology, EarlyView.
Central Figure. Advanced Conduction Disease After Incident HF in Myotonic Dystrophy Type 1. ABSTRACT Background Myotonic dystrophy type 1 (DM1) is associated with progressive cardiac conduction disease, heart failure (HF) and increased mortality. However, the association of incident HF with conduction disease and survival in DM1 is not well defined ...
Isadora Guarino, Lauren Elman, Gregory Supple, Saman Nazarian   +3 more
wiley   +1 more source

QRS COMPLEX DURATION AND CLINICAL FEATURES OF PATIENTS WITH PERMANENT PACEMAKERS

Journal of V. N. Karazin Kharkiv National University: Series Medicine, 2013
125 patients (57 – women, 68 – males) with permanent pacing were examined. Among the indications for pacemaker installation there were atrio-ventricular block (AV-block) – 77 people (62 ± 4 %), sick sinus node syndrome (SSNS) – 32 patients (26 ± 4 ...
I. V. Shanina, D. E. Volkov, D. A. Lopin, N. I. Yabluchansky   +3 more
doaj  

Prevalence and long-term prognostic implications of prolonged QRS duration in left ventricular hypertrophy: a population-based observational cohort study. [PDF]

BMJ Open, 2022
Rankinen J, Haataja P, Lyytikäinen LP, Huhtala H, Lehtimäki T, Kähönen M, Eskola M, Tuohinen S, Pérez-Riera AR, Jula A, Rissanen H, Nikus K, Hernesniemi J.   +12 more
europepmc   +1 more source

Cellular mechanisms of radiation‐induced myocyte dysfunction: effects on calcium handling, ion channel regulation and mitochondrial energetics

The Journal of Physiology, EarlyView.
Abstract figure legend Dose‐dependent effects of radiation on cardiac electrophysiology and arrhythmia susceptibility. At low radiation doses (left), increased reactive oxygen species (ROS) initiate an ROS–Ca2+ positive feedback loop involving calcium/calmodulin‐dependent protein kinase II (CaMKII) activation, enhanced L‐type Ca2+ current (ICaL ...
Hannah M. Zukowski, Colleen E. Clancy
wiley   +1 more source

Determinants of LV dP/dt_max and QRS duration with different fusion strategies in cardiac resynchronisation therapy. [PDF]

Open Heart, 2021
Odland HH, Holm T, Gammelsrud LO, Cornelussen R, Kongsgaard E.   +4 more
europepmc   +1 more source

Human‐derived cardiac‐neural microtissues reveal catecholaminergic polymorphic ventricular tachycardia is also a disease of the sympathetic neuron

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic diagram illustrating the proposed pathway in which regulatory defects might occur in sympathetic neurons derived from hiPSC in catecholaminergic polymorphic ventricular tachycardia (CPVT). Specifically, enhanced calcium transients appeared to derive from three sources: enhanced membrane excitability (due to loss of ...
Ni Li, Chenchen Zhang, Mengying Xu, YoonYoung Choi, Davi Sidarta‐Oliveira, Ruirui Dong, Xinyu Hu, Enrique M. Toledo, Cesar A. Prada‐Medina, Finbar Argus, Kun Liu, Mingyu Li, Linna Zhou, Hagan Bayley, Corey Smith, Chris Denning, Ana I. Domingos, Guoliang Hao, Dan Li, David J. Paterson   +19 more
wiley   +1 more source

Increased QRS duration and dispersion are associated with mechanical dyssynchrony in patients with permanent right ventricular apical pacing. [PDF]

Discoveries (Craiova), 2021
Chávez-González E, Nodarse-Concepción A, Donoiu I, Rodríguez-González F, Puerta RC, Elizundia JMC, Peña GP, Rodríguez-Jiménez AE.   +7 more
europepmc   +1 more source

Brain Natriuretic Peptides and QRS Duration in Repaired TOF Patients with QRS Duration ^|^lt; 180msec

Pediatric Cardiology and Cardiac Surgery, 2014
Nakashima, Yasumi, Mori, Yoshiki, Takeda, Sho, Kaneko, Sachie, Inoue, Nao, Watanabe, Kazumasa, Koide, Masaaki   +6 more
openaire   +2 more sources

Extracellular ionic concentration modulates arrhythmias in a simulated population of human ventricular myocytes with long QT syndrome type 3

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustrating the in silico study pipeline. A total of 50,000 virtual myocytes were generated, which were then filtered to 7093 myocytes that fit experimentally constrained biomarkers for physiological electrical and calcium behaviour under wild‐type conditions.
Katherine Flannery, Jacob A. Miller, Steven Poelzing, Seth H. Weinberg   +3 more
wiley   +1 more source

Longer action potential duration in the Purkinje network than in the ventricular myocardium delays retrograde activation of the human His‐Purkinje system

The Journal of Physiology, EarlyView.
Abstract figure legend Activation time (AT) maps from right ventricular apical pacing in a human ventricles model with longer action potential duration in the His‐Purkinje system (HPS) than in the myocardium (MYO). For pacing with a long S1S2 coupling interval (CI), the AT from the myocardial pacing site to the first AT of the HPS (ATMYO) is longer ...
Jason D. Bayer, Edward J. Vigmond, Ruben Coronel, Chantal E. Conrath   +3 more
wiley   +1 more source