RT Journal A1 HILLIARD J, SCHREINER RL, PRIEST J T1 HEmoperitoneum associated with exchange transfusion through an umbilical arterial catheter JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1979 FD February 1 VO 133 IS 2 SP 216 OP 216 DO 10.1001/archpedi.1979.02130020108021 UL http://dx.doi.org/10.1001/archpedi.1979.02130020108021 AB The incidence of hemoperitoneum as a factor in neonatal deaths has been reported to approach 3%1; 70% to 80% of the cases are secondary to ruptured subcapsular hematomas of the liver.1.2 Perforation with subsequent hemoperitoneum has been reported as a complication of umbilical vessel catheter insertion.3.4 The following is a case of hemoperitoneum related to an exchange transfusion through an indwelling umbilical arterial catheter at 4 days of age. To our knowledge, hemoperitoneum resulting from this procedure has not been previously reported.Report of a Case.—A 30-week gestation, 1,290-g male infant was admitted to James Whitcomb Riley Hospital for Children, Indianapolis, at 4 hours of age for treatment of severe respiratory distress. Chest roentgenogram was consistent with grade III hyaline membrane disease. Blood and suprapubic urine were obtained for culture and antibiotics were started. The clinical course was complicated by acidosis, shock, and hypoglycemia. At 90