Laparoscopic cholecystectomy in patients with ventriculoperitoneal (VP) shunts.

Increased intracranial pressure is often relieved by a ventriculoperitoneal shunt. The shunt has a one-way valve which can withstand pressures of 300 mmHg and prevent reflux of intraabdominal fluid. We have utilized laparoscopy for cholecystectomy in four patients with VP shunts. In all patients the peritoneal cavity was free of adhesions. When CO2 insufflation pressure was as high as 10-15 mmHg cerebrospinal fluid was still noted to flow from the end of the shunts. In three patients the entire procedure was performed laparoscopically. In the fourth patient the procedure was converted to an open cholecystectomy because of extensive inflammation surrounding a gangrenous gallbladder. Postoperatively the shunts remained intact and functional. There were no central nervous system sequelae. None of the shunts became infected. Elective laparoscopic cholecystectomy in patients with VP shunts can be done safely without a need for clamping or other manipulation of the shunt.