Design and patients The study population consisted of 20 children in convalescent phase of KD and 20 age and sex matched healthy controls. All children with KD had received intravenous immunoglobulin (IVIG) during the acute phase and only 1 had mild coronary artery involvement which had normalized during follow up. Intervals were measured with the use of a digital caliper (least count 0.01 mm) ...

This study investigated interobserver (two observers) and intrasubject (two measurements) reproducibility of QT dispersion from abnormal electrocardiograms in patients with previous myocardial infarction, and compared a user-interactive with an automatic measurement system. Standard 12-lead electrocardiograms, recorded at 25 mm.s-1, were randomly chosen from 70 patients following myocardial inf...

results two weeks after transplantation, the mean tpe decreased to 0.052 ± 0.002, which was significant compared to pre-hd (p < 0.001) and post-hd (p = 0.019). the mean tpec was 0.059 ± 0.002, which, just in comparison to pre-hd, was significant (p = 0.005). in addition, the mean tpe/qt decreased to 0.143 ± 0.005, which was significant compared to pre-hd (p = 0.018). the mean qtd was 0.066 ± 0....

BACKGROUND We investigated an association between baseline heart rate-corrected QT (QTc) interval before severe hypoglycemia (SH) and prolongation of QTc interval during SH in patients with type 2 diabetes mellitus (T2DM). METHODS Between January 2004 and June 2014, 208 patients with T2DM, who visited the emergency department because of SH and underwent standard 12-lead electrocardiography wi...

Background: Transplanted patients are frail individuals who may be affected by diastolic dysfunction, leading to a decrease in exercise tolerance. Previous studies have reported that certain ECG and echocardiographic parameters (such as the P-wave interval, PQ dispersion, Tend-P QTc strain) can support diagnosis of dysfunction when ejection fraction is preserved. This study aimed examine potent...

Abstract Background Electro-mechanical (EMC) and mechano-electrical coupling (MEC) are essential for normal cardiac function. Alterations in these can result increased arrhythmia formation. In “electrical” diseases, long-QT short-QT syndrome, regional mechanical function is altered via EMC. Purpose this study, we aimed to investigate how acute changes mechanics may impact on electrical diseases...

background: the role of methadone in qtc prolongation, torsades de pointes (tdp) arrhythmia and sudden cardiac death has been debated. because of widespread use of methadone in methadone maintenance treatment (mmt) centers, we aimed to study dose-related effects of methadone on qtc prolongation. methods: in a comparative observational study, 90 patients who were under mmt were evaluated. patien...

OBJECTIVES To explore the effect of aging on cardiac toxicity specifically the interaction of age and antipsychotic drugs to alter the QT interval. METHODS THE MEDLINE DATABASES WERE SEARCHED USING THE OVIDSP PLATFORMS WITH THE SEARCH STRATEGY: "QT interval" or "QT" and "age" or "aging". The entry criteria were: over 10,000 apparently healthy individuals with data on both sexes; QT interval c...

AIMS Identification of a prolonged, corrected QT (QTc) interval in athletes may be a recommendation for disqualification from competitive sports. However, the prevalence and diagnostic significance of an isolated prolonged QTc in asymptomatic athletes without familial disease is unknown. METHODS AND RESULTS Between 1996 and 2006, 2000 elite athletes (mean age, 20.2 years) underwent 12-lead EC...