Early postoperative enteral feeding in patients with nontraumatic intestinal perforation and peritonitis

In our clinical setting, patients with perforative peritonitis are frequently malnourished. Immediate postoperative enteral feeding has been shown effective in reducing septic morbidity in patients with abdominal trauma. This study was designed to investigate the feasibility and efficacy of immediate postoperative enteral feeding in patients with nontraumatic intestinal perforation and peritonitis.

A prospective study spanning 1 year was conducted on patients with nontraumatic intestinal perforation and peritonitis. After laparotomy, patients were assigned randomly to a control or study group. The study group underwent a feeding jejunostomy and received enteral feeding from 12 hours postoperatively. A low-residue, milk-based diet was used. All patients underwent assessment for severity of sepsis and nutritional status at admission. Studies of nutritional status and nitrogen balance were repeated on days 4 and 7.

Forty-three patients (21 in the study group; 22 in the control group) were included. The two groups were comparable except for a higher sepsis score in the study group (p < 0.05). Patients in the study group achieved a positive nitrogen balance by the third postoperative day; patients in the control group remained in negative nitrogen balance throughout the study. Abdominal distention (four patients) required temporary withdrawal of feeding. Diarrhea occurred in four patients but was controlled easily. The mortality rate was similar in the control and study groups (18.2% versus 19.1%). The control group had a total of 22 septic complications, versus eight in the study group (p < 0.05).

Immediate postoperative feeding is feasible in patients with perforative peritonitis and reduces septic morbidity.