Clinical evaluation of sphincter of Oddi manometry

Sphincter of Oddi pressure (SOP) was measured in 50 consecutive patients referred for evaluation of acute pancreatitis (15 patients), recurrent pancreatitis (21 patients), and postcholecystectomy syndrome (14 patients). The mean SOP (±standard error) in the patients with acute pancreatitis (40 ± 4 mm Hg) and recurrent pancreatitis (50 ± 6 mmHg) was significantly greater (P .05) than that of normal control subjects (31 ± 2 mm Hg). The clinical efficacy of this new procedure remains to be determined.