The importance of early diagnosis of small bowel obstruction.

The records of 300 patients with a diagnosis of small bowel obstruction were evaluated to determine which factors, if any, were prognostic of clinical outcome. Ninety per cent of patients had at least one prior abdominal procedure; those of a gynecologic or obstetric nature were most common. Abdominal pain (92%), vomiting (82%), abdominal tenderness (64%), and distention (59%) were the most frequent symptoms and signs, and plain abdominal x-rays were abnormal in 273 (91%) patients. Two hundred and nine patients (70%) underwent surgical repair, of which 48 (23%) required resection of intestine for densely adherent or strangulated bowel. Contrast studies were generally not helpful and associated with barium peritonitis in two patients. The mortality rate for the entire series was 9 per cent, which doubled for those who underwent resection. Septic complications occurred in 31 per cent of the survivors in this group. Fourteen of the 16 patients who died from abdominal sepsis had a delay in presentation and/or treatment, which was the most important prognosis factor for patient outcome.