Abstract
Paroxysmal ventricular tachycardia (VT) inducing syncope is usually associated with organic heart disease, but it can occur in a person with a structurally normal heart. 1,2 Although the disorder is rarely found in pregnant women, many reports of this have been published. 3–7 When life-threatening cardiac arrhythmias occur during pregnancy, choosing optimal therapy can be difficult. Beta-adrenergic blocking agents have been used for treatment of a variety of disorders in pregnant patients as well as ventricular arrhythmias in both pregnant and nonpregnant patients. 1,2,6–10 We describe the clinical histories of 2 patients without structural heart disease who presented with paroxysmal VT inducing syncope during pregnancy. In each case, maternal arrhythmia was abolished with cardio-selective β blockade without deleterious effect to the fetus.
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