Diagnosis and treatment of acute pancreatitis: are the guidelines accepted?
Based on the high response rate which excludes a non-responder bias, the results of our study reflect the current status of the diagnosis and therapy of acute pancreatitis in Germany and to what extent international guidelines are known and complied with. This study also highlights the need for additional clinical trials in areas of diagnostic or therapeutic uncertainty.
Manipulating the expected effects of caffeine altered the behavioral and subjective effects of caffeine. A significant dose by expectancy interaction revealed a somewhat paradoxical outcome in the placebo conditions whereby those told "impair" performed better than those told "enhance." This may reflect compensatory responding as has been observed in similar studies using alcohol (Fillmore et al. Psychopharmacology 115:383-388, 1994). Impair instructions led to greater negative somatic effects only when caffeine was administered supporting the active placebo hypothesis.