García-Rubira J C, López García-Aranda V, Cruz Fernández J M
Unidad Coronaria, Hospital Universitario Virgen Macarena, Sevilla, Spain.
Int J Cardiol. 1990 May;27(2):282-3. doi: 10.1016/0167-5273(90)90174-4.
A young woman with congenital long QT syndrome presented with repetitive torsade de pointes. A single bolus of magnesium sulphate abolished the arrhythmia.