[Provocative gamma GT test in chronic pancreatitis? (author's transl)]

The increase of serum gamma-GT after hormonal stimulation has been reported as a new provocative test in the diagnosis of chronic pancreatitis. The test was suggested to be more sensitive than the serum amylase provocation test. In a clinical study of both tests in 83 consecutive patients the unsensitivity and the high rate of false positive results were demonstrated. Thus these provocation tests do not seem to be valuable in the diagnosis of chronic pancreatitis.