Results 31 to 40 of about 17,794 (148)

Evaluation of Tpeak–Tend and QT intervals in Chagas’ Disease, Chronic Phase and Normal Electrocardiogram

Journal of Cardiac Arrhythmias, 2020
Introduction: Chagas’ disease lacks elements to predict which carriers will evolve into cardiac form and which will remain in undetermined form. Objective: To evaluate the relationship between electrocardiographic evolution and Tpeak–Tend and QT ...
Abilio Augusto Fragata Filho, Claudia da Silva Fragata, Angela Maria Lourenço, Cristiane Castro Faccini, João Ítalo Dias França   +4 more
doaj   +4 more sources

Prolonged QT Interval in Cirrhosis: Twisting Time?

Gut and Liver, 2022
Approximately 30% to 70% of patients with cirrhosis have QT interval prolongation. In patients without cirrhosis, QT prolongation is associated with an increased risk of ventricular arrhythmias, such as torsade de pointes (TdP).
William Lee, Bert Vandenberk, Satish R. Raj, Samuel S. Lee   +3 more
doaj   +1 more source

Comparison of Four Rate-Correction Algorisms for the Ventricular Repolarization Period in Assessing Net Effects of IKr Blockers in Dogs

Journal of Pharmacological Sciences, 2006
The utility of corrected and uncorrected QT interval changes for assessing net repolarization delay by IKr (a rapid component of delayed rectifier K+ currents) blockers was assessed in halothane-anesthetized dogs using the electrocardiogram and ...
Akira Takahara, Atsushi Sugiyama, Yoshioki Satoh, Keitaro Hashimoto   +3 more
doaj   +1 more source

The importance of the epinephrine provocation test for the hidden type-1 congenital long QT syndrome

Türk Kardiyoloji Derneği Arşivi, 2020
Congenital long QT syndrome (LQTS) is a genetic channelopathy associated with a high incidence of sudden cardiac death in children and young adults. QT interval prolongation is typically the primary finding on the electrocardiography (ECG) recordings ...
Adem Atici, Ramazan Asoğlu, Hasan Ali Barman, Irfan Sahin   +3 more
doaj   +1 more source

Estimation of cardiac QTc intervals in people prescribed antipsychotics: a comparison of correction factors

Therapeutic Advances in Psychopharmacology, 2022
Background: A prolonged electrocardiogram (ECG) QT interval is associated with cardiac events and increased mortality. Antipsychotics can prolong the QT interval.
Teodora Andric, Karl Winckel, Timothy David Tanzer, Samantha Hollingworth, Lesley Smith, Katherine Isoardi, Olivier Tan, Dan Siskind   +7 more
doaj   +1 more source

Correction: Utility of Corrected QT Interval in Orthostatic Intolerance. [PDF]

PLoS ONE, 2015
[This corrects the article DOI: 10.1371/journal.pone.0106417.].
doaj   +1 more source

Unmasking Long QT Syndrome in the Emergency Department: A Case Report

Clinical Practice and Cases in Emergency Medicine, 2021
Introduction: Long QT syndrome (LQTS) is an uncommon disorder that can lead to potentially life-threatening dysrhythmias. LQTS can be genetic, acquired, or both.
Eric Leslie, Andrew Medenbach, Eric Pittman   +2 more
doaj   +1 more source

Drug-induced prolonged corrected QT interval in patients with methadone and opium overdose

Substance Abuse Treatment, Prevention, and Policy, 2019
Background Iran is a country with the highest rate of opioid addiction in the world. The most commonly used opioid in Iran is opium, and methadone is in second place. The trend of drug use has changed from opium to methadone from 2006 to 2011.
Davood Soroosh, Mahbubeh Neamatshahi, Bahram Zarmehri, Samaneh Nakhaee, Omid Mehrpour   +4 more
doaj   +1 more source

QT is longer in drug-free patients with schizophrenia compared with age-matched healthy subjects. [PDF]

PLoS ONE, 2014
The potassium voltage-gated channel KCNH2 is a well-known gene in which mutations induce familial QT interval prolongation. KCNH2 is suggested to be a risk gene for schizophrenia.
Kumiko Fujii, Yuji Ozeki, Hiroaki Okayasu, Yumiko Takano, Takahiro Shinozaki, Hiroaki Hori, Masami Orui, Minoru Horie, Hiroshi Kunugi, Kazutaka Shimoda   +9 more
doaj   +1 more source

Altered circadian rhythmicity of the QT interval predicts mortality in a large real-world academic hospital population

Heliyon
Objective and rationale: Small studies have shown that the QT interval follows a circadian rhythm. This finding has never been confirmed in a large real-world hospital population and the clinical meaning of disrupted rhythmicity remains unknown. Methods:
Rutger R. van de Leur, Bastiaan C. du Pré, Markella I. Printezi, Rutger J. Hassink, Pieter A. Doevendans, René van Es, Linda W. van Laake   +6 more
doaj   +1 more source