Revista argentina de cardiología
versión On-line ISSN 1850-3748
DEL VALLE, Jorge Domingo et al. Asymptomatic Coronary Artery Spasm and Severe Ventricular Arrhythmias. Rev. argent. cardiol. [online]. 2010, vol.78, n.5, pp. 445-448. ISSN 1850-3748.
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.
Palabras clave : Coronary Artery Spasm; Ventricular Tachycardia; Implantable Cardioverter Defibrillator.