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BMJ Case Rep. 2014 May 14;2014. pii: bcr2014205055. doi: 10.1136/bcr-2014-205055.

Mitral valve prolapse and electrolyte abnormality: a dangerous combination for ventricular arrhythmias.

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1
Department of Cardiology, Rashid Hospital, Dubai Health Authority, Dubai, United Arab Emirates.

Abstract

A 27-year-old woman with a history of bileaflet mitral valve prolapse and moderate mitral regurgitation presented to our emergency with untractable polymorphic wide complex tachycardia and unstable haemodynamics. After cardiopulmonary resuscitation, return of spontaneous circulation was achieved 30 min later. Her post-resuscitation ECG showed a prolonged QT interval which progressively normalised over the same day. Her laboratory investigations revealed hypocalcaemia while other electrolytes were within normal limits. A diagnosis of ventricular arrhythmia secondary to structural heart disease further precipitated by hypocalcaemia was made. Further hospital stay did not reveal a recurrence of prolonged QT interval or other arrhythmias except for an episode of non-sustained ventricular tachycardia. However, the patient suffered diffuse hypoxic brain encephalopathy secondary to prolonged cardiopulmonary resuscitation.

PMID:
24827670
PMCID:
PMC4025216
DOI:
10.1136/bcr-2014-205055
[Indexed for MEDLINE]
Free PMC Article
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