Researchers from Royal Jubilee Maternity Hospital and The Queen's University of Belfast, Northern Ireland, reviewed the literature to see if hypnosis worked to reduce hyperemesis gravidarum - severe and persistent nausea and vomiting during pregnancy.

A literature search was carried out using Cochrane, PsycINFO, PsycARTICLES, and Web of Knowledge databases. A total of 45 studies were identified by the search. Six studies fulfilled the inclusion criteria re: study design, methodological quality, intervention and outcomes.

Methodology between the studies differed but all reported encouraging positive outcomes. 

However, the quality of current evidence, based on the studies reviewed in this study, is not sufficient to definitively establish hypnosis as an effective treatment for HG.  For this, well-designed studies in the form of randomized, controlled trials, need to be carried out.

Citation:  McCormack D. Hypnosis for hyperemesis gravidarum. Journal of Obstetrics & Gynaecology. 2010;30 (7):pp. 647-53. [email protected]