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신정옥,심일구,이항재,김희범 순천향의학연구소 1999 Journal of Soonchunhyang Medical Science Vol.5 No.1
Objective : Our purpose of this study was to evaluated the incidence of twin pregnancy with one fetal demise, predisposing factors and the maternal complications and perinatal outcomes. Patients : From January 1993 to December 1997, 5 twin pregnancy with single fetal demise after 28 weeks gestation by gestational age were observed in Soonchunhyang Kumi Hospital. Results : 1. The incidence of one fetal demise was 3.01% in twin pregnancy. 2. Maternal disseminated intravascular coagulation has not been demonstrated. 3. The predisposing factors of twin pregnancy with single fetal demise are umbilical cord torsion (40%), congenital anomaly(20%) and unknown(40%). 4. According to chorionicity, it seems that the perinatal mortality rate of monochorionic group was higher than dichorionic. Conclusion : This study suggests that monochorionic placentation is associated with increased risks of twin pregnancy with single fetal demise. But it may be partially explained due to small numbers of cases in this study.
자궁경부암의 예후인자로서 DNA Ploidy와 Proliferating Cell Nuclear Antigen(PCNA)에 대한 연구
이해혁,남계현,이권해,심일구,진소영 대한부인종양 콜포스코피학회 1996 Journal of Gynecologic Oncology Vol.7 No.1
OBJECTIVE: The objective of this study were to clarify the significance of PCNA and DNA ploidy as a possible parameter of the prognosis in squamous cell carcinoma of the uterine cervix. STUDY DESIGN: Women with the diagnosis of cervical cancer operated between January 1987, and July 1991, composed the study group(n=35) in this case-control group. Among these 35 patients.In theese patients we chose the patients with complete follow up treatment. Also we employed 7 control paraffin-embedded cervical specimens without any specific pathologic lesions for the comparison. Immunohistochemical staining to identify PCNA was applied to case of paraffin section and PCNA indices was obtained. DNA analysis was done by using flow cytometry and S-phase fraction and DNA ploidy were obtained. RESULT: The results were summarized as follows. 1. S-phase fraction were 20±7% in cervical cancer and 16±11% in control group. There were no statistical difference. Aneuploid ratio were 26%(9/35) in cervical cancer and 0%(0/7) in control group. There were statistical difference. PCNA indices were 45±6% in cervical cancer and 5±4% in control group. There were statistical difference. 2. There were no stastistical difference in PCNA indices between large cell keratinizing type, and large cell nonkratinizing type of cervical cancer. 3. According to lymph node metastasis, there were no statistical difference in PCNA incices between positive group and negative group. 4. According to various pathologic parameters, recurrence rate was hihger in cases of parametrial involvement. 5. The correlation of coefficient was 0.747 between PCNA indices and S-phase fraction. that is a significant relationship. 6. According to recurrence, there were no statistical difference in S-phase fraction, aneuploidy and PCNA indices between group of recurrence and no recurrence. 7. There were no statistical difference between $lt;20%, group and $gt;20%, group of S-phase, aneuploid and $lt;60%, group and $gt;60%, group of PCNA index in view of recurrence rate. CONCLUSION : That is a significant relationship between S-phase fraction and PCNA indices. But, there are no statistical significance of PCNA indices, DNA ploid and a prognostic factor. So, that is a limitation in PCNA index DNA ploid when it was used as a prognostic parameter of uterine cervical cancer.