Japanese society of Ova Research

Abstract

Vol.20 No.1

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Case Report
Conjoined Twin in Triplet Pregnancy Occurring after ICSI, Cryopreservation, and Assisted Hatching
JMOR, 20(1) 41-44, 2003
DOI: 10.1274/jmor.20.41
Nobuo Sugawara1* Kaoru Yanagida2 Mathiko Maeda1 Nobuaki Suzuki3 You Tokunaga4 Akira Sato2 
1Iwaki Women's Clinic, 3-2 Ookishita, Iwaki, Fukushima 973-8403, Japan
2Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University, Fukushima, Fukushima 960-1295, Japan
3Iwaki Kyoritsu General Hospital, Uchigo, Iwaki, Fukushima 973-8555, Japan
4Iwakisaiseikai Foundation Matumura General Hospital, Iwaki, Fukushima 970-8516, Japan

Conjoined twins result from an abnormal process in the development of monozygotic twins. Monozygotic twins are closely associated with assisted reproductive technology, especially assisted hatching. The prognosis for conjoined twins is very poor. This risk underscores the importance of fetal screening by ultrasonography in the early stages of pregnancy, since the conjoined twin can be detected by ultrasonography. Here we reported a case of conjoined twin in a triplet pregnancy after a transfer of cryopreserved embryos with assisted hatching that were obtained by ICSI.

Keywords: Monozygotic twin  Conjoined twin  Assisted hatching  ICSI 
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