Results 1 to 10 of about 181,524 (344)

Effect of age and gender on QT interval

open access: diamondNational Journal of Physiology, Pharmacy and Pharmacology, 2018
Background: The sudden cardiac death syndrome has a large preponderance in men compared to women and that too in older age group. Various population studies have demonstrated four- to seven-fold increase of sudden cardiac death among men compared with ...
Sudeep Satpathy   +2 more
doaj   +2 more sources

QT interval

open access: yesThe Egyptian Heart Journal, 2014
Background: Occupational factors are likely to contribute to increased cardiovascular disease risk among emergency medical responders (EMR). The aim of this study was to clarify whether EMR stressful Job and their prolonged exposure to work stress are ...
E. El-safty   +5 more
doaj   +3 more sources

Methods of Assessment and Clinical Relevance of QT Dynamics [PDF]

open access: yesIndian Pacing and Electrophysiology Journal, 2005
The dependence on heart rate of the QT interval has been investigated for many years and several mathematical formulae have been proposed to describe the QT interval/heart rate (or QT interval/RR interval) relationship. While the most popular is Bazett’s
Beata Sredniawa   +4 more
doaj   +1 more source

Congenital Short QT Syndrome [PDF]

open access: yesIndian Pacing and Electrophysiology Journal, 2004
Long QT intervals in the ECG have long been associated with sudden cardiac death. The congenital long QT syndrome was first described in individuals with structurally normal hearts in 1957.1 Little was known about the significance of a short QT ...
Charles Antzelevitch, Johnson Francis
doaj   +2 more sources

Relationship between QT interval and ventricular electrical axis: A new suggestion for Lead selection in QT interval measurement [PDF]

open access: greenActa Medica Iranica, 2000
Exploration of the interlead QT variation (QT dispersion) introduced cardiologists to some new concepts including the deed to define a standard for lead selection in the measurement of QT interval and the reason or factors contributing to QT dispersion ...
"Moradman S, Hatamizadeh P "
doaj   +4 more sources

Prevalence of the QT interval prolongation and its risk factors in hospitalized geriatric patients: findings of a single center cross-sectional study in Pakistan [PDF]

open access: yesBMC Geriatrics
Background and objectives Geriatric inpatients are particularly susceptible to Torsades de Pointes (TdP) because they are usually polymorbid and often take QT-prolonging drugs.
Huma Tanveer   +9 more
doaj   +2 more sources

A Study on the Diurnal Variation of Ventricular Repolarization Parameters in Patients with Obstructive Sleep Apnea [PDF]

open access: yesZhongguo quanke yixue, 2022
BackgroundObstructive sleep apnea hypopnea syndrome (OSAHS) is a common sleep breathing disorder. More and more studies have shown that OSAHS has a significant correlation with cardiovascular disease.
YANG Beibei, JIANG Junguang, SHI Jiang, ZHANG Yang
doaj   +1 more source

Serial electrocardiogram recordings revealed a high prevalence of QT interval prolongation in patients with tuberculosis receiving fluoroquinolones

open access: yesJournal of the Formosan Medical Association, 2023
Background: Fluoroquinolones, crucial components of treatment regimens for drug-resistant tuberculosis (TB), are associated with QT interval prolongation and risks of fatal cardiac arrhythmias. However, few studies have explored dynamic changes in the QT
Ke-Shiuan Ju   +8 more
doaj   +1 more source

Corrected QT interval and QT dispersion in temporal lobe epilepsy

open access: yesThe Egyptian Journal of Neurology, Psychiatry and Neurosurgery, 2021
Background Cardiac arrhythmias are expected among patients with epilepsy due to the effect of anti-epileptic drugs. Temporal lobe epilepsy also causes autonomic seizures that may affect heart rhythm.
Maram Samy Nasef   +5 more
doaj   +1 more source

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