QT Interval

In cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle. In general, the QT interval represents electrical depolarization and repolarization of the left and right ventricles. A lengthened QT interval is a biomarker for ventricular tachyarrhythmias like torsades de pointes and a risk factor for sudden death.

Read more about QT IntervalCorrection For Heart Rate, Measurement

Other articles related to "qt interval, qt":

Cinoxacin - Adverse Reactions
... nerve damage), Tendon Damage, Heart Problems (prolonged QT Interval / Torsades de pointes), Pseudomembranous colitis, Rhabdomyolysis (muscle wasting ... and such patients may also be more susceptible to prolongation of the QT interval ... known prolongation, those with hypokalemia, or being treated with other drugs that prolong the QT interval should avoid the use of cinoxacin ...
Itopride - Adverse Drug Reactions - Cardiac Studies
... belongs to the same benzamide group as cisapride, a drug which was found to affect QT interval and possibly predispose those using it to cardiac arrhythmias ... to evaluate the cardiac safety profile of itopride to see if it had a similar effect on QT interval in animals ... itopride was devoid of the potential to cause prolongation of the QT interval and posed no known risk of cardiac arrhythmias ...
Grepafloxacin
... withdrawn world wide from markets owing to its side effect of lengthening the QT interval on the electrocardiogram, leading to cardiac events and sudden death ... Raxar from clinical use citing to the fact that Raxar's effect on "QT interval prolongation" was unacceptably risky ... levofloxacin, gatifloxacin, gemifloxacin) have also been associated with QT interval prolongation, resulting in sudden death of the patient ...
QT Interval - Abnormal Intervals - Use in Drug Studies For FDA Approval
... new molecular entities are evaluated in a Thorough QT (TQT) study to determine a drug's effect on the QT interval ... Traditionally, the QT interval has been evaluated by having individual human readers measure approximately nine cardiac beats per clinical timepoint ... TQT studies, it has also become evident that traditional QT correction formulas such as QTF, QTB, and QTLC may not always be suitable for evaluation of drugs impacting ...
Levofloxacin - Adverse Effects
... peripheral neuropathy (irreversible nerve damage), tendon damage, Heart Problems (prolonged QT Interval / Torsades de pointes), Pseudomembranous colitis, Rhabdomyolysis (muscle wasting ... may also be more susceptible to prolongation of the QT interval ... with hypokalemia, or being treated with other drugs that prolong the QT interval should avoid the use of Levaquin ...

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