German study provides more evidence: hypnosis safe and effective for IBS

One of the highlights of this German study was a strong effectiveness of medical hypnosis for Irritable Bowel Syndrome, among other applications. A key message conclusion from the study states:

Robust evidence (from meta-analysis of randomized controlled trials including at least 400 patients) of the efficacy of medical hypnosis exists for reduction of pain and emotional stress, duration of interventions, drug consumption during medical interventions, and reduction of irritable bowel symptoms.

Hypnosis in Surgery, Journal of the National Cancer Institute

The Mind Prepared: Hypnosis in Surgery
by David Spiegel, MD, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine

Along with an excellent set of references, this article is a very good summary of the state and factors of using hypnosis to reduce the pain and anxiety that cancer patients (or any surgery patient, really) feels. The first study mentioned is a 2007 randomized trial of 200 patients. A quote: