Unusual presentation of supraventricular tachycardia degenerating into ventricular fibrillation during pregnancy: Aortocaval compression the probable culprit |
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Affiliation: | 1. Department of Cardiology, St George Hospital, Sydney, NSW 2217, Australia;2. University of New South Wales, Sydney NSW 2052, Australia;3. Department of Medicine, National University Hospital, 119074, Singapore |
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Abstract: | Cardiac arrhythmias are common and often benign in pregnancy. However, haemodynamic instability can occur when tachyarrhythmias are accompanied by aortocaval compression, which can lead to loss of cardiac output. We present an atypical case of a pregnant woman with a supraventricular tachyarrhythmia, which degenerated into ventricular fibrillation arrest while supine due to aortocaval compression. Inducible atypical atrioventricular nodal re-entry tachycardia was subsequently detected on electrophysiological study and presumed to be the most likely initial supraventricular tachyarrhythmia. |
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Keywords: | Aortocaval compression syndrome Atypical atrioventricular nodal re-entrant tachycardia Cardiac arrest Supraventricular tachycardia Ventricular fibrillation Pregnancy |
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