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LQTS: Difference between revisions
→ECG tests
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*The exercise ECG (X-ECG) commonly shows failure of the QT to shorten normally, thereby prolonging the corrected QT interval, and many individuals develop characteristic T-wave abnormalities. | *The exercise ECG (X-ECG) commonly shows failure of the QT to shorten normally, thereby prolonging the corrected QT interval, and many individuals develop characteristic T-wave abnormalities. | ||
*A brisk-standing test ECG, where the QT-interval is measured after abrupt standing with subsequent heart rate acceleration. There appears to be a form of QT-stretching and QT-stunning | *A brisk-standing test ECG, where the QT-interval is measured after abrupt standing with subsequent heart rate acceleration. There appears to be a form of QT-stretching and QT-stunning. <cite>Viskin</cite><cite>Adler</cite> | ||
*Epinephrine infusion is a provocative test that increases the sensitivity of the ECG findings | *Epinephrine infusion is a provocative test that increases the sensitivity of the ECG findings | ||