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Immunotherapy for recurrent miscarriage
1Department of Obstetrics and Gynaecology, University of Utah Medical Centre, 50 North Medical Drive, Salt Lake City, Utah 84132, USA. jscott@hsc.utah.edu
Background:
Immunologic aberrations might be the cause of recurrent early pregnancy loss in some women.
Objectives:
The objective of this review was to assess the effects of leukocyte immunisation or other immunologic treatments such as intravenous immune globulin (IVIG) on the live birth rate in women with previous unexplained recurrent miscarriages.
Search Strategy:
The Cochrane Pregnancy and Childbirth Group trials register was searched. Individual patient data were obtained from the American Society for Reproductive Immunology and by MEDLINE search. Date of last search: December 1999.
Selection Criteria:
Randomised trials of immunotherapy in women with three or more prior miscarriages, no more than one live birth, all non-immunologic causes ruled out and no simultaneous treatment intervention.
Data Collection And Analysis:
Eligibility and trial quality were assessed by one reviewer.
Main Results:
Eighteen trials of high quality were included. The various forms of immunotherapy did not show significant differences between treatment and control groups. For paternal cell immunisation, the odds ratios was 1.05, 95% confidence interval 0.75 to 1.47. For third party donor cell immunization, the odds ratio was 1.39, 95% confidence interval 0.68 to 2.82. For trophoblast membrane infusion the odds ratio was 0.40, 95% confidence interval 0.11 to 1.45. For intravenous immune globulin (IVIG), the odds ratio was 1.14, 95% confidence interval 0. 66 to 1.95.
Reviewer'S Conclusions:
Paternal cell immunization, third party donor leukocytes, trophoblast membranes, and IVIG provide no significant beneficial effect over placebo in preventing further miscarriages.