Idiopathic ventricular tachycardia. A review.

摘要: Idiopathic or unexplained VT occurs in a small but important subset of patients without clinically evident heart disease. The majority these appear to have structurally normal heart. cause the arrhythmias individuals is unclear and may never be recognized. Other with this condition minor abnormalities not sufficient impair overall cardiac function. significance genesis arrhythmia uncertain. Whether are more likely harbor covert disease such as myocarditis focal defect known, nor it resolved whether warrant aggressive search for structural cause. question that remains any patient subjected surgical pathological exploration undetermined responsible arrhythmia. Continued correlation between functional (electrophysiological) (pathological) data will provide meaningful information concerning pathophysiology (substrate) arrhythmias. Because preservation function, generally well-tolerated. Although usually associated favorable prognosis, occasional deaths reported apparently idiopathic ventricular permit calling benign. It would know extent which unrecognized play role tachycardias, predisposed fatal different natural history. If cases involving were excluded from consideration, then relatively homogeneous disease-free group identified truly benign uniformly prognosis. In cases, primary electrical abnormality prove basis These issues remain elucidated future studies.