QTc interval-dependent body posture in pediatrics
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چکیده
منابع مشابه
Ketamine-induced QTc interval prolongation
Sir, Ketamine is a noncompetitive antagonist of the N-methyl-D-aspartate (NMDA) receptor. It is widely used as a dissociative anesthetic and is also used as an adjunct in pain management, particularly in opioid-tolerant patients. It blocks calcium channels and depresses sodium channel function as well as having anticholinergic effects. It inhibits the re-uptake of the catecholamines and may hav...
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The measure of delayed ventricular repolarization most frequently used clinically is the ability of the new chemical entity to prolong the QTc interval on surface electrocardiogram. Intramyocardial dispersion of repolarization appears to play a more important role both in electrical stability of the ventricles and in arrhythmogenesis. The potential importance of myocardial dispersion of refract...
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Insulin hyperpolarizes plasma membranes; we tested whether insulin affects ventricular repolarization. In 35 healthy volunteers, we measured the Q-T interval during electrocardiographic monitoring in the resting state and in response to hyperinsulinemia (euglycemic 1-mU. min(-1). kg(-1) insulin clamp). A computerized algorithm was used to identify T waves; Bazett's formula was employed to corre...
متن کاملQTc interval screening in methadone treatment.
DESCRIPTION An independent panel developed cardiac safety recommendations for physicians prescribing methadone. METHODS Expert panel members reviewed and discussed the following sources regarding methadone: pertinent English-language literature identified from MEDLINE and EMBASE searches (1966 to June 2008), national substance abuse guidelines from the United States and other countries, infor...
متن کاملEffect of Average Annual Mean Serum Ferritin Levels on QTc Interval and QTc Dispersion in Beta-Thalassemia Major
Background There is evidence indicating impaired cardiomyocytic contractility, delayed electrical conduction and increased electrophysiological heterogeneities due to iron toxicity in beta-thalassemia major patients. In the present study, we compared the electrocardiographic and echocardiographic features of beta-thalassemia major patients with a healthy control group. Materials and Methods ...
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ژورنال
عنوان ژورنال: BMC Pediatrics
سال: 2020
ISSN: 1471-2431
DOI: 10.1186/s12887-020-1959-8