Placebo responses in patients with gastrointestinal disorders

作     者：Frauke Musial Sibylle Klosterhalfen Paul Enck 

作者机构：Department of Complementary and Integrative Medicine University Duisburg-Essen Germany Deptartment of Psychosomatic Medicine and Psychotherapy University Hospitals Tübingen Germany 

出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)

年 卷 期：2007年第13卷第25期

页      面：3425-3429页

核心收录：

学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

主　　题：Placebo Gastrointestinal disease Regressionto the mean Natural history PavIovian conditioning Outcome expectation Beliefs 

摘      要：Over the last several years there has been a growing interest in placebo, not only as an inert control in clinical trials, but also in the placebo effect as a group effect as well as a reaction in individual subjects. Methodological factors such as regression to the mean and natural history of the disease play a role in the evaluation of a possible placebo effect. In this report, we discuss several factors including PavIovian conditioning, beliefs outcome, expectations, and other factors as potential mediators of the placebo response. Placebo effects are common in gastrointestinal diseases and there seems to be no clear difference between placebo effects in functional gastrointestinal diseases （functional dyspepsia and irritable bowel syndrome） and organic gastrointestinal disease （duodenal ulcer and inflammatory bowel disease）.