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Reversible left ventricular dysfunction induced by recurrent ventricular tachycardia.

K Iga¹, K Hori, T Matsumura

¹Department of Cardiology, Tenri Hospital, Japan.

|December 1, 1992

Summary

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Transient left ventricular (LV) dysfunction can occur with ventricular tachycardia (VT). Prompt treatment of VT can restore normal LV wall motion, even in patients with long-standing palpitations.

Area of Science:

Cardiology
Cardiac Electrophysiology
Cardiomyopathy

Background:

Ventricular tachycardia (VT) can present with palpitations and may be associated with cardiac dysfunction.
Distinguishing VT-induced dysfunction from other cardiomyopathies is crucial for appropriate management.

Observation:

Two cases presented with increased frequency and duration of palpitations, indicative of VT.
Two-dimensional echocardiography (2DE) revealed transiently decreased left ventricular (LV) wall motion in both patients.

Findings:

LV wall motion abnormalities normalized rapidly following successful VT treatment.
The observed pattern of diffuse LV hypokinesis mimicked dilated cardiomyopathy (DCM) but lacked heart failure symptoms.

Implications:

Related Experiment Videos

This suggests a reversible cause of LV dysfunction in specific VT presentations.
Early recognition and treatment of VT may prevent progression to chronic heart failure.
VT-induced cardiomyopathy should be considered in the differential diagnosis of unexplained LV dysfunction.