Abstract
The experience with high-risk congenital diaphragmatic hernia (CDH) at an institution that does not offer extracorporeal membrane oxygenation (ECMO) was reviewed. Between January 1, 1983 and December 31, 1993, 38 children presented with Bochdalek-type CDH. Excluded were two infants with lethal cardiac anomalies and four presenting after 4 hours of age. Thus, the authors identified 32 high-risk patients. All had early respiratory distress and were intubated within 5 hours of birth. Sixteen were inborn; 16 were referred to the Izaak Walton Killam Children's Hospital (IWK) within 24 hours of birth. There were 19 males and 13 females. Three died before surgery could be attempted. Twenty-two survived, giving an overall survival rate of 69% (22 of 32). For 28 of the 32, the best preoperative postductal Pao 2 (BPDPao 2) was recorded. Fifteen of the 28 children had a BPDPao 2 of greater than 100 mm Hg. Survival in this group was 14 of 15 (93%). Thirteen of the 28 patients had a BPDPao 2 of less than 100 mm Hg. Survival in this group was 5 of 13 (38%). These survival rates are comparable to those of centers offering ECMO. BPDPao 2 appears to be a useful discriminating variable.
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