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Ruth C. Spritzer, MD; Mark Seldon; Leonard M. Mattes, MD; Ephraim Donoso, MD; Charles K. Friedberg, MD

JAMA. 1970;211(6):1005-1007.

Abstract
The sudden onset of ventricular tachycardia and complete heart-block was documented via a continuous electromagnetic tape recording of the electrocardiogram during labor, delivery, and in the immediate postpartum period in two asymptomatic women with rheumatic heart disease. Monitoring of the ECG by an oscilloscope is recommended for the detection of unexpected and potentially life-threatening arrhythmias during childbirth in patients with heart disease.

Author Affiliations
From the Division of Cardiology, Department of Medicine, the Mount Sinai School of Medicine, New York.; Drs. Spritzer and Mattes were fellows of the US Public Health Service.

Footnotes
Reprint requests to 1125 Fifth Ave, New York 10028 (Dr. Friedberg)

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