Results 1 to 10 of about 58,871 (136)

Effect of QT interval-prolonging drugs taken in pregnancy on the neonatal QT interval [PDF]

open access: yesFrontiers in Pharmacology, 2023
Introduction: Acquired QT interval prolongations due to drug side effects can result in detrimental arrhythmia. Maternal use of placenta-permeable drugs may lead to fetal exposure, thus leading to an increased risk of neonatal QT prolongation and ...
Holger Michel   +13 more
doaj   +2 more sources

Methods of Assessment and Clinical Relevance of QT Dynamics

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

QT Interval Revisited —Not Just the Matter of “Interval,” but “Dynamics, Variability and Morphology” Matter!— [PDF]

open access: yesJournal of Arrhythmia, 2007
Recently, the effects of QT interval prolongation have received more attention among clinicians, industry, and official regulatory agencies. Some have advocated the total elimination or discontinuing development of drugs which prolong the QT interval. In
Tetsunori Saikawa, MD   +2 more
doaj   +2 more sources

Increases of QT dispersion, corrected QT dispersion and QT interval in young healthy individuals during Ramadan fasting [PDF]

open access: yesActa Medica Iranica, 2003
Ramadan fasting is one of the most important religious duties of Muslims, that its effect on the heart has not been determined yet. Our objective was to evaluate the effect of Ramadan fasting on ventricular repolarization as assessed by QT interval ...
Moradmand S   +6 more
doaj   +3 more sources

Congenital Short QT Syndrome

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   +1 more source

Short QT interval syndrome

open access: yesКардиоваскулярная терапия и профилактика, 1970
Every year, sudden cardiac death (SCD) takes lives of 400 000 American citizens, and in 10-20% ofthe cases, fatal outcome is explained by hereditary pathology.
I. G. Fomina   +2 more
doaj   +2 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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