Abstract
The authors attempted to achieve extrauterine support of goat fetuses using arteriovenous extracorporeal membrane oxygenation (A-V ECMO) via umbilical vessels, incubated in a warm bath. They hypothesized that this extrauterine support system affected both the lung growth and maturation of goat fetuses. Four goat fetuses at about 125 days' gestation (term, 150 days) were placed in this fetal ECMO system. Their four twin fetuses with similar body weights were harvested and examined for baseline data before ECMO (pre-ECMO data). The mean duration of A-V ECMO was 138.8+/-66.9 hours (range, 87 to 237 hours). Tracheal ligation was performed on all four fetuses to prevent the efflux of fetal tracheal fluid and to collect a sample of tracheal fluid daily. The surfactant and electrolytes of the tracheal fluid were analyzed in pre-ECMO (twin fetuses) and during ECMO. The surfactant of lung tissue, and lung weight were analyzed in pre-ECMO (twin fetuses) and after ECMO. Plasma cortisol and T3 levels were also assayed as hormonal factors that affected lung maturation in pre-ECMO and during ECMO. The phospholipid, phosphatidylcholine, and lecithin-sphingomyelin ratio of the tracheal fluid on day 5 during ECMO (15.0+/-7.1 mg/dL, 53.4+/-26.5%...Continue Reading
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Citations
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