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Korean Journal of Obstetrics & Gynecology 1997;40(4):747-750.
Published online January 1, 2001.
Availability of Maternal Serum CA 125 in Diagnosis of Abruptio Placentae.
Seoung Min Lee, Gi Hong Kim, Hak Joon Kim, Young Woo Seo, Jeong Ho Rhee, Jong In Kim
Department of Obstetrics and Gynecology, Institute of Clinical Genetics, School of Medicine, Keimyung University, Taegu, Korea.
The diagnosis of abruptio placentae is frequently difficult despite advanced diagnostic tool because of symptomatic diversity, so additional diannostic parameter would be useful. Maternal serum CA 125, which is derived from decidua, shows an increase by the tenth weeks and then decreases, remaining low level until delivery.However, within 1 hour after term delivery, CA 125 level shows a second increase, probably because of decidual disruption. Serum CA 125 level was measured in 45 patients between 29 and 41 weeks gestation who were seen with vaginal bleeding and in 30 control patients of same gestational age.Mean(+/-SD) CA levels were higher(p < 0.05) among patients with abruptio placentae(61.2+/-52.9U/ml) than among those with bleeding due to placenta previa(17.4+/-8.5U/ml) or control patients(20.3+/-21.3U/ml).Mean(+/-SD) serum CA 125 level in 17 control patients within 6 hours postpartum(81.7+/-102.6U/ml) were higher than those among patients with palcenta previa or normal pregnancy(p < 0.05).Sensitivity and specificity of maternal serum level of CA 125 for diagnosis of abruptio placentae were 73% and 92% on cut off level of 30U/ml, respectively.
Key Words: Abruptio placentae, CA 125

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