联胎(附6例报告)

CONJOINED TWINS WITH REPORT OF 6 CASES

介绍6例联胎,前两例为胸脐联胎,后4例为头胸联胎.其内脏如外表,同样具有畸形,胸脐联胎具共心包、共心和共肝等畸形,头胸联胎例为共颅脑、共部分消化道,共主动脉弓环,共双降主动脉和伴心脏很多畸形.他们均为手术不能分离例,所以产前检查和选择性地终止妊娠,对其父母和社会均很重要.

This paper presents 6 cases of conjoined twins. The first 2 cases were thoraco-omphalopagi and 4 cases were cephalo-thoracopagi. Like their deformed appearance, their internal organs were also deformed. The thoraco-omphalopagi have shared pericardial sac. heart and liver, and the cephalo-thoracopagi have shared cerebral structure, partial fusion of gastro-intestinal tract and vascular ring of aortic arch, and double aortic arches and have multiple cardiac defects. They are all inoperable cases. Therefore, prenatal diagnosis and selective termination of pregnancy are of great significance to the parents as well as the society.