Table of Contents
ISRN Obstetrics and Gynecology
Volume 2012 (2012), Article ID 819356, 8 pages
Clinical Study

The Incidence of Various Antiphospholipid Antibodies, Measured by Commercial-Based Laboratory, with Recurrent Spontenous Abortion and the Impact of Their Profiles on Reproductive Outcome with Active Anticoagulant Therapy

Department of Obstetrics and Gynecology, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo 105-8461, Japan

Received 8 November 2011; Accepted 15 December 2011

Academic Editor: A. Martin-Hidalgo

Copyright © 2012 Nagayoshi Umehara and Tadao Tanaka. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To investigate the incidence of various antiphospholipid antibodies (aPLs), measured by commercial-based laboratory, with recurrent spontaneous abortion (RSA) patients and the impact of the species, isotype, titer, and number of positive aPLs on reproductive outcome in Japanese. Method. In this retrospective cohort study, 263 patients with RSA without possible causes were investigated. Of 131 patients with one or more positive aPL, 82 pregnant women under anticoagulant therapy were evaluated. Results. The incidence of various aPLs was almost consistent with previous report. Overall, successful pregnancy rate with anticoagulant therapy was 91.4% regardless of aPL profiles. There was no significant difference in the pregnancy maintenance rate between IgG and IgM groups or single positive and multiple positive groups, but there was a tendency for the rate with aspirin to be lower than with aspirin plus heparin in IgG group. Conclusion. aPL profile did not affect the pregnancy maintenance rate when anticoagulant therapy was actively introduced, however in IgG group, we recommend combination therapy with aspirin and heparin.