• S Tefikow, J Barth, S Maichrowitz, A Beelmann, B Strauss, and J Rosendahl.
• Jena University Hospital, Friedrich Schiller University Jena, Institute of Psychosocial Medicine and Psychotherapy, Jena, Germany. susan.tefikow@med.uni-jena.de
• Clin Psychol Rev. 2013 Jul 1;33(5):623-36.

AbstractThis meta-analysis investigates the efficacy of hypnosis in adults undergoing surgical or medical procedures compared to standard care alone or an attention control. Through a comprehensive literature search N=34 eligible randomized controlled trials (RCTs) were included, comprising a total of 2597 patients. Random effects meta-analyses revealed positive treatment effects on emotional distress (g=0.53, CI 95% [0.37; 0.69]), pain (g=0.44, CI 95% [0.26; 0.61]), medication consumption (g=0.38, CI 95% [0.20; 0.56]), physiological parameters (g=0.10, CI 95% [0.02; 0.18]), recovery (g=0.25, CI 95% [0.04; 0.46]), and surgical procedure time (g=0.25, CI 95% [0.12; 0.38]). In conclusion, benefits of hypnosis on various surgically relevant outcomes were demonstrated. However, the internal validity of RCTs seems limited and further high methodological quality RCTs are needed to strengthen the promising evidence of hypnosis for adults undergoing surgery or medical procedures.Copyright © 2013 Elsevier Ltd. All rights reserved.

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