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Direct ultrasonographic measurement of fetal lung length in normal pregnancies and pregnancies complicated by prolonged rupture of membranes


, : Direct ultrasonographic measurement of fetal lung length in normal pregnancies and pregnancies complicated by prolonged rupture of membranes. American Journal of Obstetrics & Gynecology 163(5 PART 1): 1560-1566

Fetal lung length was measured directly with ultrasonography in 20 patients with prolonged rupture of membranes, commencing before 25 weeks' gestation. Measurements were made weekly and compared with data collected from 310 normal pregnancies. Measurement of fetal lung length by ultrasonography was a good predictor of pulmonary hypoplasia, predicing > 90% of cases. There was a good correlation between lung size assessed by the last ultrasonographic examination and lung weight postmortem (r = 0.783, p < 0.05). Lung length measurements were superior to fetal chest circumference measurements in the identification of pulmonary hypoplasia. There was a significant negative association between the amount of amniotic fluid and pulmonary hypoplasia (p < 0.050). There were fetuses with pulmonary hypoplasia that had respiratory movements seen at the majority of ultrasonographic examinations.

US$19.90

PMID: 2240106

DOI: 10.1016/0002-9378(90)90627-J


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