• From June 1980 to September 1984, forty-five newborns (weight, ≥2000 g), initially presumed normal, were seen with bilious vomiting in the first 72 hours and were prospectively followed up. Nine (20%) required surgical intervention, five (11%) had nonsurgical obstruction such as meconium plug or left microcolon, and the remaining 31 (69%) had idiopathic bilious vomiting. Infants with idiopathic bilious vomiting had a benign transient course and resumed feedings by 1 week of age; 30 of the 31 had normal or nonspecific findings on initial plain abdominal roentgenogram. Specific findings on the initial plain abdominal roentgenogram were noted in five infants, and four (80%) of these had a lesion requiring surgical intervention; 56% (5/9) of neonates with surgical lesions had normal or nonspecific findings on the plain abdominal roentgenograms. None developed bowel ischemia or midgut infarction secondary to a volvulus as they were identified by contrast studies shortly after the initial episode of bilious vomiting. Although the majority of "normal" neonates with bilious vomiting do not have a surgical lesion, this study indicates that 56% of surgical cases will be missed if contrast studies are not done.
Lilien LD, Srinivasan G, Pyati SP, Yeh TF, Pildes RS. Green Vomiting in the First 72 Hours in Normal Infants. Am J Dis Child. 1986;140(7):662–664. doi:10.1001/archpedi.1986.02140210060026
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