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Two critically ill neonates with severe renovascular hypertension as a complication of aortic monitoring catheter are presented. They did not respond to intensive medical therapy for hypertension. In spite of their precarious general condition, nephrectomy was undertaken with complete relief of symptoms.

Ecchymosis of the scrotum and lower abdominal wall occurred in four newborn boys. All were anemic. Three had coagulation abnormalities and evidence of sepsis. In two, group B streptococcal septicemia was documented. Intraperitoneal hemorrhage from a ruptured subcapsular hematoma of the liver was the source of blood in the scrotum in three, and most probably in the fourth as well. Two infants died in spite of antibiotics, vigorous blood replacement, including exchange transfusion, and desperation laparotomies for continued intraperitoneal hemorrhage. Newborns with scrotal ecchymosis should be examined for intraperitoneal hemorrhage, ruptured subcapsular hematoma of the liver being the most probable source. Their coagulation status should also be evaluated, and sepsis should be suspected, especially in those with a demonstrated coagulopathy. Group B Streptococcus is a likely primary etiologic agent in these critically ill neonates. Nonoperative treatment, as given the two survivors in this experience, is preferred.

Necrotizing enterocolitis (NEC) usually occurs in low birth weight infants who have had perinatal stress, and the mortality remains significant. There are a few reports of NEC in the postoperative period, especially in young infants. Nine neonates developed NEC following operations and form the basis of this report. The interval between operation and the diagnosis of NEC varied from 3 days to 4 mo. The surgical lesions included one case each of esophageal atresia, tetralogy of Fallot, supralevator rectal atresia with rectourethral fistula, and multiple intestinal atresias. Three babies had gastroschisis and two had "apple peel" intestinal atresia. Only 3 of the 9 survived. The usual clinical findings of NEC, abdominal distention, bile stained gastric residuals and diarrhea (with or without blood), can occur in the postoperative period without NEC and are, therefore, not reliable diagnostic signs. Significant changes in the clinical course of these babies occurred from 7 hr to 5 days before the diagnosis was established. In these patients the roentgen findings that established the diagnosis of NEC included intestinal ileus, pneumatosis intestinalis, and portal vein gas. Pneumatosis intestinalis and portal vein gas were the most reliable diagnostic signs, but appeared relatively late in the course of the disease. In one case pneumatosis was seen only in retrospect. None of the patients had definite pneumoperitoneum. Awareness of NEC as a potential postoperative complication may result in early recognition, treatment and survival.