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일측 질 폐쇄와 동측 신장무발생을 동반한 완전중격자궁에서 발생한 자궁질혈종
차선희(Sun Hee Cha),이현행(Hyun Haing Lee),김현철(Hyun Chul Kim),이미화(Mee Hwa Lee),김숙경(Suk Kyung Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.1
We report a case of a 13-year-old girl who was noted to have combined malformation of complete septate uterus, obstructed hemivagina and ipsilateral renal agenesis with complaints of dysmenorrhea. Hematometrocolpos was developed in the result of retained menstrual blood since menarche. This rare congenital anomaly is supposed to be derived from disorders of mesonephric and M llerian developement in embryogenesis of female genitouinary tract. An accurate preoperative diagnosis of this syndrome is critical because of the difference in therapeutic strategy and prognosis. Simple and definite treatment of the condition is excision of the obstructed vaginal septum with prompt exit of retained blood. We present here a interesting case of M llerian anomaly in attempt to alert gynecologist to the possible occurrence of such a malformation with a brief review of concerned literatures.
윤희주 ( Hee-joo Yoon ),차선희 ( Sun-hee Cha ),차의영 ( Eui-young Cha ) 한국정보처리학회 2005 한국정보처리학회 학술대회논문집 Vol.12 No.1
본 시스템은 어항 속의 물고기 움직임을 추적하기 위해 직교식 스테레오 비젼 시스템(Othogonal Stereo Vision System)으로부터 동시에 독립된 영상을 획득하고 획득된 영상을 처리하여 좌표를 얻어내고 3차원 좌표로 생성해내는 시스템이다. 제안하는 방법은 크게 두 대의 카메라로부터 동시에 영상을 획득하는 방법과 획득된 영상에 대한 처리 및 물체 위치 검출, 그리고 3차원 좌표 생성으로 구성된다. Frame Grabber를 사용하여 초당 8-Frame의 두 개의 영상(정면영상, 상면영상)을 획득하며, 실시간으로 갱신하는 배경영상과의 차영상을 통하여 이동객체를 추출하고, Labeling을 이용하여 Clustering한 후, Cluster의 중심좌표를 검출한다. 검출된 각각의 좌표를 직선방정식을 이용하여 3차원 좌표보정을 수행하여 이동객체의 좌표를 생성한다.
기왕제왕절개반흔에 발생한 자궁외 임신의 Methotrexate 국소주입에 의한 치료 1례
이상희(Sang Hee Lee),김지혜(Jee Hye Kim),차선희(Sun Hee Cha) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.8
Myometrial pregnancy developing in an previous cesarean section scar is the rarest of all ectopic pregnancy and provavly one of the most dangerous because of the risk of rupture and hemorrhage. For a young patient wanting to maintain her fertility, an earlier diagnosis and more conservative treatment are highly desirable. We present a case of an ectopic pregnancy embedded in the myometrium of a previous cesarean section scar in which the patient preserved her fertility through more noninvasive method, transvaginal ultrasound-guided Methotrexate injection.
이위현(Wee Hyun Lee),차선희(Sun Hee Cha),이미화(Mee Hwa Lee) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.3
Objective: Our purpose was to evaluate the pregnancy outcome and the advantages of laparoscopic tubal reanastomosis. Method; During 16 months, January 1996 to April 1997, thirty-two patient had underwent laparoscopic tubal reanastomosis in Pudang CHA General Hospital. The mean age of the patients was 36.1+-4.3 years(mean+-SD; range 26 to 47 years). Result: The intrauterine pregnancy rate of laparoscopic tubal reanastomosis was 72.4%(21/29). Data comparing laparoscopic procedure retrospectively to tubal reversal by laparotomy was also evaluated. The mean interval from operation to pregnancy was similar in the two groups (p=0.9). The operation time was sigoificantly longer for laparoscopy (215.3+-35.5 minutes) than for laparotomy(159.7+-52.3 minutes). Nevertheless, the intensity of postoperative pain was lower (p<0.05) in patient who underwent laparoscopy than in patient who underwent laparotomy. Also, the mean hospital stay (3.6+-2.3 days for laparoscopy, 6.1+-0.5 days for laparotomy) was shortened(p<0.05) after laparoscopy compared with laparotomy. Conclusion: Laparoscopic tubal reanastomosis may offer the benefits of lower postoperative pain and shorten recovery time in comparison with laparotomy. Therefore, considering the high pregnancy rate in minimal follow up period of 6 month, laparoscopic tubal reanastomosis could be an alternative procedure to microsurgical laparotomy in patients requesting reversal of sterilization.
Methylenetetrahydrofolate Reductase(MTHFR) 유전자다형과 자연 유산아 발생의 관련성에 관한 연구
전익범,지승일,신승주,차선희,최동희,임동진,박상희,이수만,이상화,고정재,김남근,Jeon, Nick-Beom,Ji, Seung Il,Shin, Seung Joo,Cha, Sun Hee,Choi, Dong Hee,Yim, Dong Jin,Park, Sang Hee,Lee, Suman,Lee, Sang Hwa,Ko, Jung Jae,Kim, Nam Keun 대한생식의학회 2006 Clinical and Experimental Reproductive Medicine Vol.33 No.1
목 적: 본 연구는 methylenetetrahydrofolate reductase (MTHFR C677T와 A1298C) 유전자 돌연변이형이 자연유산아 발생의 원인 유전자로 작용하는지에 대해 알아보고자 시도하였다. 연구방법: 95명의 자연유산아 조직과 대조군으로 100명의 정상 소아의 혈액 그리고 449명의 정상 성인의 혈액을 채취하여 DNA를 분리하여 사용하였다. 유전자형은 분리된 DNA를 이용하여 중합효소 연쇄반응과 제한효소 절편다형 분석방법으로 결정하였다. 결 과: 자연유산아 그룹은 소아대조군에서 보다 MTHFR 677CC 형 (p=0.014)은 높게, 677CT형 (p=0.063)은 낮게 나타났다. 성인대조군과의 비교에서도 MTHFR 677CT 형의 빈도는 현저히 낮게 나타났다 (p=0.032). 그리고 MTHFR 677CC/1298AC 조합형 유전자의 경우 소아대조군 (p=0.034)과의 비교에서는 현저히 높은 빈도를 나타냈으나, 성인대조군 (p=0.063)과의 비교에서는 높은 경향성은 있었으나 통계학적으로 유의한 차이는 없었다. 결 론: MTHFR 677CC와 MTHFR 677CC/1298AC 유전자형은 자연유산아 발생의 위험인자일 가능성이 높으며, 지속적인 연구가 요구된다. Objectives : This study was performed to understand the influence of the methylenetetrahydrofolate reductase (MTHFR C677T and A1298C) genotypes on the spontaneously aborted embryos. Methods : DNA was extracted from tissue samples of 95 spontaneously aborted embryos and 100 samples of normal children randomly and 449 samples of normal adults were selected as the controls. MTHFR genotypes were determined by a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. Results : The aborted embryo group had higher frequency of MTHFR 677CC type (p=0.014) and lower 677CT type (p=0.063) than the controlled child group. The frequency of MTHFR 677CT type was drastically lower than that of controlled adult group (p=0.032). In the MTHFR C677T/A1298C combination, 677CC/1298AC genotype of the aborted embryo was significantly higher (p=0.034) than that of controlled child group, but it was not statistically significant in controlled adult group (p=0.063). Conclusion : MTHFR 677CC and MTHFR 677CC/1298AC genotypes may represent genetic markers for the risk of spontaneously aborted embryos at least in Koreans.
姜龍澈(Yong-Cheol Kang),車善熙(Sun-Hee Cha),張成一(Sung-Il Jang),姜海權(Hae-Gweon Kang),金容均(Yong-Gyun Kim),朴君哲(Goon-Cherl Park) 대한전기학회 2008 전기학회논문지 Vol.57 No.12
A large scale embedded generator or a micro-grid is usually interconnected to the grid through the dedicated line. Immediately after the removal of the grid supply, it must be disconnected and remain disconnected until the normal grid supplies are restored. This paper proposes an islanding detection algorithm based on complex power at the intertie. Complex power at the intertie delivered to the grid has a value depending on power flow during normal operation. When loss of mains occurs, complex power at the intertie moves to a value depending on the parameters of the dedicated line. The performance of the proposed algorithm was investigated under various operating and fault conditions. The proposed algorithm can detect an islanding operation even if no power is exchanged prior to loss of mains and discriminate the fault condition from islanding.
남윤성(Yoon Sung Nam),김남근(Nam Keun Kim),정창진(Chang Jin Jeong),차선희(Sun Hee Cha),차광열(Kwang Yul Cha) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.12
A balanced translocation in a parent may produce unbalanced gametes leading to abortions or defective liveborn children, or interval infertility. It also may give rise to a balanced gamete resulting in a balanced carrier, or it may produce a cytogenetically normal gamete. The incidence of balanced chromosomal translocations in couples with multiple abortions was reported as 0% to 31%. This wide variation is related to the heterogeneous criteria used for patient selection. Because parents with balanced chromosomal rearrangements and history of only repeated abortions have a significant chance with each pregnancy of having a child with normal or balanced karyotype, the usual criteria for investigation include at least two abortions or reproductive losses. There is no evidence from several reported series that increasing the number of losses to three or more leads to any change in the yield of chromosomal rearrangements detected.
남윤성(Yoon Sung Nam),김남근(Nam Keun Kim),정창진(Chang Jin Jeong),차선희(Sun Hee Cha),차광열(Kwang Yul Cha) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.4
Pulsatile secretion of GnRH from the hypothalamus is a prerequisite for both the initiation and maintenance of the reproductive axis in humans. Failure of this episodic GnRH secretion results in the clinical syndrome of hypogonadotropic hypogonadism. Deficient GnRH secretion may occur in isolation (idiopathic hypogonadotropic hypogonadism: IHH), in association with anosmia (Kallmann syndrome), or as a result of a variety of structural and functional lesions of the hypothalamic pituitary axis. The familial occurrence of hypogonadotropic hypogonadism associated with anosmia, color blindness, synkinesia, and mental defect is the classic Kallmann syndrome. Affected individuals respond readily to pulsatile administration of exogenous GnRH, and clearly this is the most physiologic approach to ovulation induction. For women not seeking pregnancy, replacement therapy with exogenous estrogen and progestin is indicated. We have experienced a case of Kallmann syndrome which was conceived by administration of gonadotropin. So we report this case with a brief review of literatures.
청소년기에 발생하여 하부 생식기 폐색과 양측 난관 농양을 초래한 심한 소음순 유착
김미경 ( Mi Kyoung Kim ),김수현 ( Soo Hyun Kim ),차선희 ( Sun Hee Cha ),이미화 ( Mee Hwa Lee ) 대한산부인과학회 2009 Obstetrics & Gynecology Science Vol.52 No.10
Labial adhesions are extremely rare in adolescent and adult populations, because the etiology of this entity commonly relates to chronic vulvar inflammation or irritation, and is basically associated with low estrogen status. Although a few cases reported urinary retention resulting from severe labial adhesions, there is no report of labial adhesion that precipitates upper genital tract infection in prepubertal and postpubertal females. We present a rare case of severe labial adhesion and consequential lower genital tract obstruction that allegedly causing bilateral pyosalpinx in a 14-year-old adolescent girl who decisively denied sexual experience. The patient was successfully treated with surgical lysis of adhesion and administration of antibiotics.