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차동현,이윤호,유용균,Cha, Dong-Hyun,Lee, Yoon-Ho,Yoo, Yong-Kyun 대한생식의학회 1994 Clinical and Experimental Reproductive Medicine Vol.21 No.3
Combined intrauterine and extrauterine pregnancy is rare, occuring 1 in 30,000 pregnancies. The early diagnosis of combined pregnancy is very difficult, and so there is a higher maternal morbidity and fetal loss. Recently the incidence of combined pregnancy is increased. We experienced a case of combined intrauterine and right tubal pregnancy, and this case was presented with a brief review of the literatures.
초기 임신에 있어서 질식 초음파에 의한 태아 심박동수의 의의
차동현(Dong Hyun Cha),이윤호(Yoon Ho Lee),김종석(Jong Seok Kim),서승현(Seung Hyun Suh),박병주(Byung Joo Park),김종화(Jong Wha Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.7
Objective : Fetal heart rate in embryos(6-8 gestational weeks) have been significantly related to fetal outcome, but have rarely been studied. We attempted to identify fetal heart rate during 6-8 gestational weeks. Our purpose was to determine the lower limit of the heart rate associated with a favorable outcome and to evaluate the prognosis for those embryos with slow heart rates in early period. Methods : We prospectively studied 798 singleton pregnancies between Jul. 1997-Dec. 1999 visiting our hospital. Gestational age was calculated from the beginning of the last menstrual period in the case of regular cycle and was confirmed by the crown-rump length. Other cases were measured by crown-rump length or mean gestational sac diameter. Color doppler sonography was used to calculate the fetal heart rate in beats per minute as the mean of 3 waves.Results : Mean fetal heart rate (±SD) were 114.08±15.40 bpm for group 1, 126.49±18.78 for group 2, 139.83±19.92 for group 3, and 149.58±23.34 for group 4(p<0.001). Prognosis in the first trimester improved as heart rate increased to 100 bpm in group 1 and 120 bpm in group 2. In group 3 and 4, most of fetus with heart rates below 110 bpm died.Conclusion : The fetal heart rate during 6-8 gestational weeks is associated with fetal outcome at the end of the first trimester and we can identify the fetuses that are in risk.
12-o-tetradecanoyl-phorbol-13-acetate가 배양된 임신 중 산모 말초혈액 단핵세포의 β-hCG 생산 및 분비에 미치는 영향
차동현(Dong Hyun Cha),유승민(Seung Min Yoo),민경희(Gyung Hee Min),김덕령(Duk Ryung Kim),김근하(Geun Ha Kim),성연준(Yeon Joon Sung),김동규(Dong Gyu Kim),이병석(Byung Suk Lee),서경(Gyung Seo),이윤호(Yoon Ho Lee),이국(Gook Lee) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.1
Objective : Peripheral blood mononuclear cells (PBMC) in culture release a biologically active human chorionic gonadotropin (hCG). This effect is detectable during pregnancy with a maximum between the 16th and 19th week. HCG plays an important role for the corpus luteum rescue during the early gestational age and possibly for the immunotolerance. This study was performed to investigate the relationships between the productivity of cultured PBMC of pregnant women and the ability to maintain early pregnancy, and whether 12-o-tetradecanoyl-phorbol-13-acetate (TPA) increases hCG sectetion by cultured PBMCs. Materials and Methods : PBMC were obtained from 20 pregnant women between 16th to 19th week of gestation , and cultured with TPA. Culture cells were harvested and hCG mRNA were extracted and RT-PCR were performed. Culture supernatants were collected and hCG concentration were determined by commercial RIA methods. Results : The mean age was 31.0 years old, 19 of 20 (95%) pregnant women's PBMC secereted hCG and expressed hCG mRNA, but in control group exept male hepatitis B patient, none of them produced hCG. TPA activated expression of hCG in PBMC in linear manner. Conclusion : Pregnant women's cultured PBMC secreted hCG, but not in non-pregnant or male. We could confirm the mRNA of hCG in PBMC as well in the placental control. The productivity of hCG in PBMC might be closely related with maintenance of early pregnancy.
중합연쇄반응 제한효소 단편 장다형을 이용한 듀센형 근이영양증 산전 진단
차동현(Dong Hyun Cha),이국(Kook Lee),최종락(Jong Rak Choi),송경순(Kyung Soon Song) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.6
Objective : Duchenne muscular dystrophy(DMD) is a X-linked recessive disease and results from mutation in the dystrophin gene. In this study, we evaluate the efficacy of polymerase chain reaction-restriction fragment length polymorphism in prenatal genetic diagnosis of DMD.Methods : DNA was isolated from DMD family's blood and fetal amniocyte and used to perform PCR-RFLP. In DMD family(3 cases), linkage analysis was tried with 5 RFLP probes.Results : DMDs of the family A had mutiple exon deletions(6, 8, 12, 13, 17). The mother was a heterozygote of pERT84;MaeIII. The male fetus had a same allele and also same exon deletions with the affected males. The pregnancy was terminated at IUP 18 gestational weeks. Pregnant woman of the family B was heterozygote of both pERT84;MaeIII and pERT87-15;BamHI, and pregnant woman of the family C was of pERT84;MaeIII. The both male fetuses , as compared with the affected male of each family, had a different allele. Thus, the fetuses were probably not affected with a confidence level of 95%. Conclusion : Prenatal diagnosis in prevention of DMD is most important. PCR-RFLP analysis in DMD family is rapid and useful diagnostic tool.
조기분만과 만삭분만에서 태반조직상에 관찰된 융모양막염의 비교
차동현(DH Cha),서경(K Seo),정우희(WH Jung),김귀례(KR Kim),조은정(EJ Cho),임영구(YG Lim),김석영(SY Kim),이윤호(YH Lee),이국(K Lee) 대한산부인과학회 1995 Obstetrics & Gynecology Science Vol.38 No.9
Objectives : To compare the placental infalammation between preterm and term deliveries. Methods : Placentas were obtained in 116 preterm and 134 term single live births at the Yonsei University Medical Center between January 1992 and December 1993. Pathlogic examination of placenta was done by two pathologists. Examnied placental sites were fetal membrane , placental disc, decidua, and umbilical cord. Student`s test and Fisher`s exacte test were used for statical comparisons. Results : 1) The prevalence of histologic chorioamnionitis in premature ruptrue of membrane (PROM) group tends to be higher in preterem(46.7%) deliveries(term 15.4% p=0.05). In intact membrane group, the result was satistically significant between preterm(15.12%) and term(5.82%) deliveries(p=0.02) 2) In 207 patients with intact membrane , associations between placental inflammation and preterm deliveries were statistically significant in chorioamnionitis and cord inflammation(preterm 5.8%, term 0%, p0.1) 3) In 43 patients with PROM no significant association was noted between placental inflammation and preterm deliveries. 4) Histologic choriamnionitis was more severe in preterm deliveries. 5) in 97 patients delived vaginally with intact membrane , the prevalence of histologic choriamnionitis tends to be higher in preterm (26.7%) deliveries(term 11.5% p=0.05). Conclusion : There was significant association between histologic choriamnionitis and preterm deliveries, and the degree of choriamnionitis was severe in ealier gestation. After controlling mode of delivery and labor, borderline association presisted between histologic choriamnionitis and preterm deliveries. Futher study will be needed.