• Chen-Ai Sung, Tzu-Yi Lin, Han-Ni Lee, Kok-Seong Chan, Tai-Ho Hung, and Steven W Shaw.
• College of Medicine, Chang Gung University, Taoyuan, Taiwan, ROC.
• J Chin Med Assoc. 2022 Feb 1; 85 (2): 212215212-215.

BackgroundFeticide was suggested to avoid delivering children with abnormalities. Recently, twin pregnancies have increased. Selective feticide was proposed to achieve a good outcome of pregnancy. This study aimed to evaluate the performance of feticide in twin pregnancy with fetal anomaly.MethodsThis was a retrospective study enrolled from 2009 to 2018. A total of 68 pregnancies with fetal anomalies received feticide. Potassium chloride was injected into the left ventricle to induce fetal asystole. Maternal and fetal characteristics of 16 dichorionic twins were documented to compare before and after 24th gestational week.ResultsAll pregnant women received feticide without any maternal or fetal complication. The reasons for choosing feticide were divided into four groups, including morphologic defect (61.8%), genetic-chromosomal abnormality (30.9%), obstetrical complication (5.9%), and maternal request (1.5%). Mean gestational age at delivery was significantly higher in dichorionic twins who underwent selective feticide before than after 24th gestational week (36.7 vs 33.4, p = 0.04).ConclusionIntracardiac injection of potassium chloride was effective for feticide and safe for mothers and fetuses. Selective feticide served as an alternative approach for twin pregnancy with fetal anomaly after sufficient discussion.Copyright © 2021, the Chinese Medical Association.

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