• Kanako Abe, Hiromi Hamada, Yang-Jen Chen, Azusa Abe, Hideki Watanabe, Yutaka Fujiki, Hiroyuki Yoshikawa, Takashi Murakami, and Hitoshi Horigome.
• Department of Obstetrics and Gynecology, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan.
• Fetal. Diagn. Ther. 2005 Sep 1; 20 (5): 459-62.

AbstractWe report a fetus at 33 weeks of gestation with supraventricular tachycardia, which was successfully managed by transplacental administration of an antiarrhythmic agent. Fetal magnetocardiography (fMCG) revealed supraventricular tachycardia of the long RP' tachycardia type. Transplacental administration of sotalol, instead of digoxin, was selected as the first-line drug, and it successfully converted supraventricular tachycardia to sinus rhythm. The diagnosis of the type of supraventricular tachycardia was confirmed by electrocardiography after birth. Sotalol was also effective after birth to maintain sinus rhythm. This case demonstrates that fMCG is potentially useful for prenatal differentiation of the type of supraventricular tachycardia and for prenatal treatment of fetal tachyarrhythmias.Copyright (c) 2005 S. Karger AG, Basel.

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