Seides S F, Shemin R J, Morrow A G
Br Heart J. 1979 Dec;42(6):742-5. doi: 10.1136/hrt.42.6.742.
A pair of monozygotic twin girls is reported with concordance for 3 congenital cardiac abnormalities: (1) secundum atrial septal defect, (2) aneurysm of the membraneous ventricular septum, and (3) electrocardiographic frontal plane left axis deviation. A review of the published materials shows a 9.5 per cent incidence of concordance for congenital heart disease among monozygotic twins. In those in whom a precise cardiological diagnosis was made, 15/16 pairs (95%) were concordant for a specific defect, 2 had an additional defect, and only 1 pair had completely dissimilar defects. Concordance for congenital heart disease in monozygotic twins is uncommon, but when it occurs the defects will most often be identical.
据报道，一对单卵双胞胎女孩患有3种先天性心脏异常：（1）继发孔房间隔缺损，（2）膜周部室间隔瘤，（3）心电图额面电轴左偏。对已发表资料的回顾显示，单卵双胞胎中先天性心脏病的一致率为9.5%。在那些做出精确心脏病诊断的病例中，16对中有15对（95%）患有特定缺陷，2对有额外缺陷，只有1对有完全不同的缺陷。单卵双胞胎中先天性心脏病的一致性并不常见，但当出现时，缺陷通常是相同的。
