连体（寄生）双胞胎：综述。

Heteropagus (parasitic) twins: a review.

机构信息

Childrens Hospital, Los Angeles, Division of Plastic Surgery, Los Angeles, CA 90027, USA.

出版信息

J Pediatr Surg. 2010 Dec;45(12):2454-63. doi: 10.1016/j.jpedsurg.2010.07.002.

DOI:10.1016/j.jpedsurg.2010.07.002

Abstract

Heteropagus, or "parasitic," twins are asymmetric conjoined twins in which the tissues of a severely defective twin (parasite) are dependent on the cardiovascular system of the other, largely intact twin (autosite) for survival. The estimated incidence of heteropagus twins is approximately 1 per 1 million live births. Isolated case reports comprise most of published work on this rare congenital anomaly. In the past, review articles have focused narrowly on one particular anatomical subtype of parasitic twin and/or on the anatomicopathology observed. Here, we present the epidemiology, proposed pathoembryogenic origins, anatomical abnormalities, management, and outcomes of the wide array of heteropagus twins described in the English language literature.

摘要

异位联体，或“寄生”双胞胎，是指不对称的联体双胞胎，其中一个严重畸形的双胞胎（寄生虫）的组织依赖于另一个基本完整的双胞胎（主体）的心血管系统才能存活。据估计，异位联体双胞胎的发病率约为每 100 万活产儿 1 例。已发表的关于这种罕见先天性畸形的工作主要是孤立的病例报告。过去，综述文章主要集中在寄生双胞胎的一种特定解剖亚型上，或侧重于观察到的解剖病理学。在这里，我们介绍了英语文献中描述的各种异位联体双胞胎的流行病学、提出的病理胚胎学起源、解剖学异常、处理和结果。