The maternal heart significantly adapts to the circulatory needs of pregnancy, but the effect of pregnancy on ventricular repolarization is poorly understood. The aim of this study was to quantify ...

The QT interval is the time from the beginning of the QRS complex (ventricular depolarization) to the end of the T wave (ventricular repolarization). The normal QT interval is controversial and ...

The QT interval on an electrocardiogram signifies the time required for the heart to repolarize after depolarization. It has long been appreciated that a long QT interval predisposes patients to ...

A recent report from Japan describes a new nomogram of normal QT intervals at various heart rates. Based on automatic measurements of 24 h Holter electrocardiogram recordings in healthy individuals, ...

PURPOSE Estimation of the QT interval and its adjustment for heart rate (HR), represents a critical step in the analysis of every electrocardiogram (ECG). Of the many formulas proposed for the ...

Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota, USA Correspondence to Dr M J Ackerman, Long QT Syndrome Clinic and the Mayo Clinic Windland Smith ...

Abstract: Computers in Cardiology Challenge 2006 has the objective to optimally assess the QT interval measurements for 549 ECGs. The challenge poses two problems: 1) the identification of ...

The COVID-19 pandemic poses an epidemiological challenge and a problem for diagnostic and therapeutic decision-making. The drugs used in patients infected with SARS-CoV-2 have an arrhythmogenic risk ...

A simple electrocardiogram (ECG) can identify hospitalised COVID-19 patients at high risk of death who might need intensive management, according to a study. The research shows that a prolonged QT ...