Conjoined twins in Hungary, 1970-1986

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Abstract

The total prevalence of conjoined twins (birth + prenatally diagnosed) was 1:68,000 in the study of 1970-1986. Symmetrical cases (the so-called siamese twins) have an obvious predominance (92.3%). Associated major malformations occurred in 80% of conjoined twins and more than 1/5 were discordant. The surviving time of liveborn conjoined twin sets was not more than two days except in two surgically successfully separated pairs. The family study did not indicate a higher recurrence risk. The case group was compared to two control groups and it appeared that the periconceptional use of oral contraception and ovulation induction were mentioned more frequently in pregnancies resulting in conjoined twins.

Original languageEnglish
Pages (from-to)285-299
Number of pages15
JournalActa Geneticae Medicae et Gemellologiae
Volume38
Issue number3-4
DOIs
Publication statusPublished - Jan 1 1989

ASJC Scopus subject areas

  • Genetics(clinical)

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