Nicorandil abolished repolarisation alternans in a patient with idiopathic long QT syndrome.
case_report · Level V
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- Record sourced from PubMed, PMID 10525528.
- Also identified by PMC identifier 1760771.
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Abstract
A 23 year old woman with idiopathic long QT syndrome had repeated syncopal attacks associated with torsades de pointes. T wave alternans (TWA) was recorded and the QT interval was abnormally prolonged during treadmill exercise test. Monophasic action potential (MAP) alternans also appeared after an abrupt shortening of the cycle length in electrophysiological study. After intravenous administration of nicorandil 6 mg, both TWA and MAP alternans disappeared.
Medical subject headings
- Anti-Arrhythmia Agents
- Long QT Syndrome
- Nicorandil