The Frey Procedure for Chronic Pancreatitis Secondary to Pancreas Divisum

IMPORTANCE Pancreas divisum is an uncommon congenital anomaly that may result in chronic pancreatitis (chronic pancreatitis secondary to pancreas divisum [CPPD]) and intractable pain. We evaluated the role of the Frey procedure in the management of patients with pain related to CPPD as compared with patients with chronic pancreatitis secondary to alcohol (CPA) or idiopathic causes (ICP). OBJECTIVE To review our experience with the Frey procedure for the management of chronic pancreatitis related to pancreas divisum. DESIGN This was a 2-year institutional retrospective of patients undergoing the Frey procedure for chronic pancreatitis related-pain from April 2008 to June 2010. SETTING Academic tertiary care referral center. PARTICIPANTS A consecutive sample of 14 patients undergoing the Frey procedure for chronic pancreatitis and disease-related intractable pain. We sought to examine the utility of the Frey procedure in patients with CPPD as compared with CPA and ICP. INTERVENTION The Frey procedure. MAIN OUTCOMES AND MEASURES Perioperative outcomes and postoperative narcotic requirement were compared among patient groups. RESULTS Fourteen patients underwent the Frey procedure. The etiology of the disease was pancreas divisum in 6 patients, alcohol in 5, and idiopathic in 3. The most common indication for surgery was intractable pain, and all patients had undergone endoscopic retrograde cholangiopancreatography for attempted relief in the past. There were no statistically significant differences in median operative time (263 minutes), intraoperative blood loss (425 mL), median length of stay (9.5 days), or rate of morbidity (21%) between the 3 etiologies. Two-thirds of patients required less or no opioid at follow-up, although follow-up was significantly longer for CPPD and ICP than CPA (median, 249, 259, and 42 days, respectively; P < .02). CONCLUSIONS AND RELEVANCE In this series, outcomes for patients with CPPD treated with the Frey procedure were equivalent to those treated for CPA. Patients with pancreas divisum and a dilated pancreatic duct may be ideally suited for this surgical strategy. The potential advantage of this approach over minor duct sphincteroplasty and lateral pancreaticojejunostomy is the removal of the fibrotic tissue of the head of the pancreas, thought to be the epicenter of pain in this condition. The benefits over resection alone include a more extensive ductal drainage procedure.