Journal List > Korean J Obstet Gynecol > v.54(7) > 1088299

Lim, Choi, Sung, Ji, and Han: A FETAL SUPRAVENTRICULAR TACHYCARDIA WHICH CONVERTED FROM BLOCKED PREMATURE ATRIAL CONTRACTIONS

Abstract

We are reporting a case of fetal supraventricular tachycardia (SVT) which converted from blocked premature atrial contractions (PAC). It has been treated by verapamil in utero. We suggest that fetal PACs are usually benign phenomena which resolve spontaneously, but require some follow-up to exclude the development of SVT. SVT is rare but complicated by fetal congestive heart failure or even fetal death.

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Fig. 1.
Pulse Doppler shows skipped beats and M-mode reveals blocked premature atrial contractions (PAC).
kjog-54-369f1.tif
Fig. 2.
M-mode shows supraventricular tachycardia which beats 234 per minutes.
kjog-54-369f2.tif
Fig. 3.
Heart rate is 216 beats per minute but skipped beats in every 2 to 5 beats.
kjog-54-369f3.tif
Fig. 4.
Fetal heart rate returned normal (143 beats per minute [BPM]) by Verapamil and the baby has normal regular heart rate (135 BPM) without medication.
kjog-54-369f4.tif
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