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Rev. argent. cardiol ; 78(5): 445-448, set.-oct. 2010. ilus, tab
Article in Spanish | LILACS | ID: lil-634211

ABSTRACT

El vasoespasmo coronario generalmente evoluciona con episodios de dolor torácico y elevación del ST. No obstante, existen casos de vasoespasmo sin dolor torácico con taquiarritmias ventriculares documentadas. Su incidencia se desconoce y debe incluirse en el diagnóstico diferencial de taquicardia o fibrilación ventricular idiopática. En esta presentación se describe el caso de un paciente con historia de dos cuadros sincopales sin cardiopatía estructural aparente. La monitorización electrocardiográfica continua objetivó episodios de elevación del ST que conducían a taquicardia ventricular polimorfa. Con el diagnóstico de vasoespasmo coronario asintomático se inició tratamiento con calcioantagonistas y se implantó un cardiodesfibrilador automático.


Coronary artery spasm usually results in episodes of chest pain and ST-segment elevation. However, it may occasionally occur in the absence of angina with documented severe ventricular arrhythmias. The incidence of this condition is unknown and should be included in the differential diagnosis of idiopathic ventricular tachycardia or fibrillation. We describe the case of a patient with a history of two episodes of syncope without apparent structural heart disease. Continuous ECG monitoring revealed the presence of episodes of ST-segment elevation leading to polymorphic ventricular tachycardia. Asymptomatic coronary artery spasm was diagnosed and treatment with calcium channel blockers was initiated; an implantable cardioverter defibrillator device was implanted.

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