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논문 기본 정보

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저자정보
김학순 (충북대학교 의과대학 산부인과학교실) 문신용 (서울대학교 의과대학 산부인과학교실) 장윤석 (서울대학교 의과대학 산부인과학교실)
저널정보
대한생식의학회 대한불임학회잡지 대한불임학회잡지 제17권 제1호
발행연도
1990.1
수록면
45 - 56 (12page)

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Maternal serum ${\beta}$-specific human chorionic gonadotropin(${\beta}$-hCG) and pregnancy-specific ${\beta}_1$-glycoprotein($SP_1$) levels were determined more than one per week during 11-41 days post embryo transfer(ET) in 21 consecutive pregnancies after in vitro fertilization(IVF), which included 8 normal singleton pregnancies, 3 twin pregnancies, 4 clinical abortions, 1 ectopic pregnancy, and 5 preclinical abortions. The sensitivity of serum ${\beta}$-hCG and $SP_1$ radioimmunoassays was 3mIU/ml and 0.7ng/ml relatively. At the 7th to 8th week of gestation, ultrasonographic confirmation of fetal pole and fetal heartbeat was performed. Both serm ${\beta}$-hCG and $SP_1$ levels showed logarithmic increase, but log[$SP_1$] had more steep rising curve and had wider variation than log[${\beta}$-hCG] in normal singleton pregnancies. In 3 twin pregnancies and one ectopic pregnancy, both serum ${\beta}$-hCG and $SP_1$ levels located within the 95% confidence interval of the mean levels of 8 normal singleton pregnancies(normal range). In 2 clinical abortions which had a fetal pole without heartbeat, serum ${\beta}$-hCG level showed lower limit of the normal range or just below, but all $SP_1$ levels showed within the normal range. In other 2 clinical abortions which were diagnosed as blighted ovum, both serum ${\beta}$-hCG levels from 11 days post-ET and serum $SP_1$ levels from later days compared with ${\beta}$-hCG were below the normal range. In 5 preclinical abortions, serum $SP_1$ levels were within the normal range but serum ${\beta}$-hCG levels were far below the normal range. In conclusion, both serum ${\beta}$-hCG and $SP_1$ levels increased exponentially with similar pattern in normally conceived pregancy after IVF-ET. Both serum ${\beta}$-hCG and $SP_1$ levels could predict outcome of early pregnancy to a certain degree, but log[${\beta}$-hCG] levels had more significant correlation with outcome of pregnancy compared with log[$SP_1$] levels. In addition, ultrasonographic examination of fetal poles and fetal heartbeats gives very important clinical information and prognosis.

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