Harrison M R, Bjordal R I, Langmark F, Knutrud O
J Pediatr Surg. 1978 Jun;13(3):227-30. doi: 10.1016/s0022-3468(78)80391-1.
From 1969 to 1975, 33 cases of congenital diaphragmatic hernia (CDH) were treated at the National Hospital of Norway with a "visible" or operative mortality of 30%. At least 37 additional infants with CDH who died soon after birth and did not come to the attention of a major referral center were identified retrospectively from a comprehensive survey of neonatal deaths. CDH occurred at least once in every 5455 live births and the "true" mortality was 66%. More than half of the infants born with CDH during this 6-yr period died before they could be treated, contributing to a substantial "hidden" mortality.
1969年至1975年期间，挪威国家医院共治疗了33例先天性膈疝（CDH）患者，“可见”死亡率或手术死亡率为30%。通过对新生儿死亡情况的全面调查，至少另外37例出生后不久死亡且未引起大型转诊中心注意的CDH婴儿被回顾性鉴定出来。每5455例活产中至少发生1次CDH，“真实”死亡率为66%。在这6年期间，超过一半的CDH患儿在能够接受治疗之前就已死亡，导致了相当大的“隐性”死亡率。
