Human Reproduction, Vol. 14, No. 1, 211-214,
January 1999
© 1999 European Society of Human Reproduction and Embryology
Haemostatic and metabolic abnormalities in women with unexplained recurrent abortion
1 University Hospital Vrije Universiteit and 2 Department of Obstetrics and Gynaecology, Academic Medical Center, Amsterdam, The Netherlands
The objective of this study was to establish whether or not patients with unexplained recurrent abortion have an increased incidence of haemostatic or metabolic abnormalities. Fifty-two patients with a history of unexplained habitual abortion (two or more spontaneous abortions before 16 weeks' gestation) were tested for protein S, protein C and antithrombin (AT) III deficiency, activated protein C (aPC) resistance, hyperhomocysteinaemia and anticardiolipin antibodies (ACA). The control group consisted of 67 healthy women with a history of only uncomplicated pregnancies. Blood samples were taken for measuring protein S, protein C, AT III, ACA and activated protein C resistance and a methionine loading test was performed. Of the 46 patients tested for protein S deficiency, 8 (17.4%) were positive. Of the 43 patients tested, two (4.7%) were protein C deficient and none was AT III deficient. Of the 42 patients tested for ACA, eight (19.1%) had detectable antibodies. Of the 44 patients tested for aPC resistance, two (4.6%) were positive. Finally, 35 patients were tested for hyperhomocysteinaemia and six (17.1%) were positive. It was concluded that parous women with a history of unexplained recurrent abortion have an increased incidence of hyperhomocysteinaemia and a trend of increased incidence of ACA can be found.
Key words: anticardiolipin antibodies/hyperhomocysteinaemia/protein C and S deficiency/recurrent abortion
3 To whom correspondence should be addressed at: Department of Obstetrics and Gynecology Free University Hospital, Amsterdam, The Netherlands
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