• Clinical and Experimental Reproductive Medicine
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• 제38권2호
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• pp.103-108
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• 2011

Objective: To investigate adverse pregnancy outcomes in non-obese women with polycystic ovary syndrome (PCOS) compared with obese-PCOS and control groups. Methods: Women with PCOS who underwent assisted reproductive technology (ART) from August, 2003 to December, 2007, were considered. A total of 336 women with PCOS were included in the study group and 1,003 infertile women who had tubal factor as an indication for ART were collected as controls. They were divided into four groups: a non-obese PCOS group, obese-PCOS group, non-obese tubal factor group, and obese tubal factor group, with obesity defined by a body mass index over 25 kg/$m^2$, and reviewed focusing on the basal characteristics, ART outcomes, and adverse pregnancy outcomes. Results: There was no difference among the groups' the clinical pregnancy rate or live birth rate. Regarding adverse pregnancy outcomes, the miscarriage rate, multiple pregnancy rate, and prevalence of preterm delivery and pregnancy induced hypertension were not different among the four groups. The incidence of small for gestational age infant was higher in the PCOS groups than the tubal factor groups ($p$ <0.02). On the other hand, the morbidity of gestational diabetes mellitus (GDM) was not high in the non-obese PCOS group but was in the obese groups. And in the obese PCOS group, the newborns were heavier than in the other groups ($p$ <0.02). Conclusion: Non-obese PCOS presents many differences compared with obese PCOS, not only in the IVF-parameters but also in the morbidity of adverse pregnancy outcomes, especially in GDM and fetal macrosomia.

• 한국데이터정보과학회:학술대회논문집
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• 한국데이터정보과학회 2004년도 춘계학술대회
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• pp.141-149
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• 2004

The various methods have been studied to develop discriminant model for Pregnancy Induced Hypertension(PIH) as high risk pregnant. In this study, we adapt the approximate entropy which is the non-linear chaotic measuring method. Then, we develop the system to discriminant PIH pregnant using QUEST with S-PLUS.

• Journal of Chest Surgery
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• 제27권11호
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• pp.907-913
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• 1994

From October 1990 to May 1993, 19 patients underwent replacement of the transverse aortic arch. [10 men, 9 women, mean age 52.5 years] Underlying diseases were acute aortic dissection [10 cases], chronic aortic dissection [4 cases],and aortic arch aneurysm [ 5 cases]. In 19 patients, 10 underwent partial replacement and 9 underwent total arch replacement. The cerebral protection was achieved by profound hypothermia [rectal temperature,16$^{\circ}$ to 2$0^{\circ}C$] associated with total circulatory arrest [mean 35.5 minutes]. In one patient, the aortic arch distal to the left common carotid artery was resected with the distal arch being cross-clamped and in another two patients, the selective cerebral perfusion was also applied during the period of total circulatory arrest via innominate artery and left common carotid artery because of longer total circulatory arrest time. Among 14 patients of aortic dissecton, 10 presented hypertension, 1 presented Marfan syndrome, 1 presented pregnancy-induced hypertension and 2 revealed no evidence of hypertension. All of the above 14 patients complained chest pain. Among 5 patients of aortic arch aneurysm, Be het disease was suspected in only one patient and atherosclerotic aneurysm was proved in another 4 patients. The overall hospital mortality was 32% [6/19]. In aortic dissection, the mortality was 43% [Acute aortic dissection 30%, chronic aortic dissection 75%] and in aortic arch aneurysm, the mortality was 0%. Follow-up was done in all survivors for from 7 months to 36 months[mean,17.3%].

• Clinical and Experimental Reproductive Medicine
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• 제34권3호
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• pp.173-178
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• 2007

목 적: 체외수정으로 출산한 쌍태아와 자연임신으로 출산한 쌍태아 간의 산과적 결과의 차이를 비교하고자 한다. 연구방법: 2000년 1월부터 2005년 6월까지 출산한 146건의 쌍태아에 관한 산과적 기록을 검토한 후, 출생 시 재태연령이 24주 이상이며 체외수정으로 임신한 72건을 연구군 (체외수정군), 자연임신한 51건을 대조군 (자연임신이군)으로 나누어 연구를 시행하였다. 결 과: 두 군 간에 산모 연령, 출산 시 재태 연령, 태아체중 등의 차이는 없었지만, 임신성 고혈압과 임신성 당뇨의 발생 위험도는 체외수정군에서 높았다 (OR 2.59; 95% CI 1.01$\sim$6.66). 20% 이상 태아 체중 차이와 같은 성의 쌍태아 발생의 위험도는 체외수정군에서 낮았다 (OR 0.37; 95% CI 0.14$\sim$0.96, OR 0.45; 95% CI 0.21$\sim$0.99). 결 론: 본 연구의 결과로는 체외수정으로 출생한 쌍태아는 자연임신으로 출생한 경우보다 태아 체중 차이의 빈도 및 같은 성 출생의 빈도가 낮았다.

• Clinical and Experimental Pediatrics
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• 제54권6호
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• pp.246-252
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• 2011

Purpose: The outcomes of small for gestational age (SGA) infants especially in extremely low birth weight infants (ELBWIs) are controversial. This study evaluated the mortality and morbidity of ELBWIs, focusing on whether or not they were also SGA. Methods: The medical records of 415 ELBWIs (birth weight<1,000 g), who were inborn and admitted to the Samsung Medical Center neonatal intensive care unit from January 2000 to December 2008, were reviewed retrospectively. Mortality and morbidities were compared by body size groups: very SGA (VSGA), birth weight ${\leq}$3rd percentile; SGA, 3rd to 10th percentile; and appropriate for gestational age (AGA) infants, >10th percentile for gestational age. For gestational subgroup analysis, groups were divided into infants with gestational age ${\leq}24^{+6}$ weeks (subgroup I), $25^{+0}$ to $26^{+6}$ weeks (subgroup II), and ${\geq}27^{+0}$ weeks (subgroup III) Results: Gestational age was $29^{+2}{\pm}2^{+6}$ weeks in the VSGA infants (n=49), $27^{+5}{\pm}2^{+2}$weeks in the SGA infants (n=45), and $25^{+4}{\pm}1^{+4}$ weeks in AGA infants (n=321). Birth weight was $692{\pm}186.6$ g, $768{\pm}132.9$ g, and $780{\pm}142.5$ g in the VSGA, SGA, and AGA groups, respectively. Cesarean section rate and maternal pregnancy-induced hypertension were more common in the VSGA and SGA than in AGA pregnancies. However, chorioamnionitis was more common in the AGA group. The mortalities of the lowest gestational group (subgroup I), and also of the lower gestational group (subgroup I+II) were significantly higher in the VSGA group than the SGA or AGA groups (P=0.020 and P=0.012, respectively). VSGA and SGA infants showed lower incidence in respiratory distress syndrome, ductal ligation, bronchopulmonary dysplasia, intraventricular hemorrhage than AGA group did. However, by multiple logistic regression analysis of each gestational subgroup, the differences were not significant. Conclusion: Of ELBWIs, extremely SGA in the lower gestational subgroups, had an impact on mortality, which may provide information useful for prenatal counseling.

• Journal of Preventive Medicine and Public Health
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• 제34권4호
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• pp.337-346
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• 2001

Objective : To determine the clinical risk factors associated with the mode of delivery decision and to compare cesarean section rates after adjusting for risk factors identified among Korean hospitals. Methods Data were collected from 9 general hospitals in two provincial regions by medical record abstraction during February 2000. A total of 3,467 cases were enrolled and analyzed by stepwise logistic regression. Performance of the risk-adjustment model (discrimination and calibration) was evaluated by the C statistic and the Hosmer-Lemeshow test. Crude rates, predicted rates with 95% confidence intervals, and adjusted rates of cesarean section were calculated and compared among the hospitals. Results : The average crude cesarean section rate was 53.2%, ranging from 39.4% to 65.7%. Several risk factors such as maternal age, previous history of cesarean section, placenta previa, placental abruption, malpresentation, amniotic fluid abnormality, gestational anemia, infant body weight, pregnancy-induced hypertension, and chorioamnionitis were found to have statistically significant effects on the mode of delivery. It was confirmed that information about most of these risk factors was able to be collected through the national health insurance claims database in Korea. Performance of the risk-adjustment model was good (c statistic=0.815, Hosmer-Lemeshow test=0.0621). Risk factor adjustment did lead to some change in the rank of hospital cesarean section rates. The crude rates of three hospitals were beyond 95% confidence intervals of the predicted rates. Conclusions : Considering that cesarean section rates in Korean hospitals are too high, it is apparent that some policy interventions need to be introduced. The concept and methodology of risk adjustment should be used in the process of health policy development to lower the cesarean section rate in Korea.

• Neonatal Medicine
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• 제25권4호
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• pp.161-169
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• 2018

Purpose: We assessed the influence of antenatal corticosteroid (ACS) on the inhospital outcomes of intrauterine growth restriction (IUGR) infants. Methods: A retrospective study was conducted with singletons born at $23^{+0}$ to $33^{+6}weeks$ of gestation at Seoul National University Hospital from 2007 to 2014. We compared clinical outcomes between infants who received ACS 2 to 7 days before birth (complete ACS), at <2 or >7 days (incomplete ACS), and those who did not receive ACS in IUGR and AGA infants. Multivariate logistic regression using Firth's penalized likelihood was performed. Results: 304 neonates with 91 IUGR neonates were eligible. Among AGA neonates, mortality (adjusted odds ratio [aOR], 0.13; 95% confidence interval [CI], 0.02 to 0.78), hypotension within 7 postnatal days (aOR, 0.20; 95% CI, 0.06 to 0.64), and severe bronchopulmonary dysplasia (BPD) or death (aOR, 0.24; 95% CI, 0.07 to 0.77) were lower in complete ACS group after adjusting for pregnancy induced hypertension and uncontrolled preterm labor. Mortality (aOR, 0.18; 95% CI, 0.04 to 0.78), hypotension (aOR, 0.26; 95% CI, 0.09 to 0.70), and severe BPD or death (aOR, 0.33; 95% CI, 0.12 to 0.92) were also lower in the incomplete ACS group. Among IUGR infants, after adjusting for birth weight and 5-minute Apgar score, inhaled nitric oxide use within 14 postnatal days was lower in both complete ACS (aOR, 0.07; 95% CI, 0.01 to 0.67) and incomplete ACS (aOR, 0.04; 95% CI, 0.01 to 0.37) groups. Conclusion: ACS was not effective in reducing morbidities in IUGR preterm infants.

• Neonatal Medicine
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• 제18권2호
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• pp.197-203
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• 2011

목적: 35세 이상 산모에서 체외 수정 시술을 통해 출생한 쌍생아와 자연 임신 쌍생아의 임상 양상을 비교하여 35세 이상 산모와 체외 수정 시술로 출생한 신생아 관리에 기초 자료 제공을 위하여 실시하였다. 방법: 2001년 1월 1일부터 2010년 12월 31일 사이 분당차병원에서 출생한 쌍생아 중 산모의 나이가 35세 이상인 신생아 508례를 대상으로 하여, 체외 수정 시술을 시행 받은 288례와 자연 임신군 220례 사이의 주산기 특성과 합병증 및 신생아기 질환발생의 차이를 의무 기록을 통해 후향적으로 조사하였다. 결과: 체외 수정 시술군과 자연 수정군 사이의 산모 연령은 (36.7${\pm}$2.07세 vs. 36.8${\pm}$2.18세, P=0.57)로 통계적 차이는 보이지 않았다. 재태 연령($36^{+0}{\pm}1^{+5}$주 vs. $36^{+0}{\pm}2^{+0}$주, P=0.95), 출생체중(2,420${\pm}$440 g vs. 2,480${\pm}$460 g, P=0.14) 역시 차이는 보이지 않았다. 1분 아프가 점수(7.37${\pm}$1.19 vs. 7.09${\pm}$1.46, P=0.019)와 5분 아프가 점수(8.67${\pm}$0.84 vs. 8.51${\pm}$0.96, P=0.045)는 모두 체외 수정 시술군에서 높았다. 임신성 당뇨, 임신성 고혈압, 전치태반, 조기 양막 파수, 제왕 절개술, 부당 경량아의 빈도는 두 군간의 차이가 없었다. 조발형 패혈증의 빈도는 체외 수정 시술군에서 자연 수정군보다 낮았다(2.4% vs. 6.4%, P=0.02). 그밖에 신생아 호흡 곤란 증후군, 기관지 폐 형성이상, 동맥관 개존증, 신생아 괴사 장염, 뇌실 내 출혈의 발생 빈도는 모두 두 군 간에 차이가 없었다. 결론: 본 기관에서 지난 10년간 고연령 산모에서 체외 수정 시술로 태어난 쌍생아의 임상 양상을 조사하여 자연 수정으로 출생한 쌍생아와 비교하였을 때, 체외 수정 시술로 인하여 주산기 합병증과 신생아기 질환의 발생 빈도가 높아지지는 않았다.

• Pediatric Infection and Vaccine
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• 제4권1호
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• pp.79-89
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• 1997

목 적 : 신생아 세균성 뇌막염은 임상 증상이 비특이적이며 여러가지 신경학적 후유증을 남길 수 있는 질환으로 본 저자들은 원인균 특히 그람 양성균과 음성균에 의한 뇌막염을 비 교 분석하여 치료 및 예후의 개선을 도모하고자 본 연구를 시행하였다. 방 법 : 1991년 1월부터 1996년 6월까지 중앙 길병원 신생아 중환자실과 소아과 병동에서 뇌척수액 검사상 균이 배양되었거나 latex agglutination test상 균이 밝혀진 24례를 대상으로 후향적으로 분석하였다. 결 과 : 1) 환아의 분포는 남아 17명, 여아 7명이었고, 그람 양성균에 의한 뇌막염 환아의 평균 출생 체중과 재태 기간은 $2.91{\pm}0.79kg$, $38.4{\pm}2.74$주, 그람 음성균군에서는 $3.30{\pm}0.90kg$, $37.7{\pm}3.33$ 주로 두 군간에 유의한 차이는 보이지 않았다. 2) 선행 요인으로는 미숙아, 태변 착색, 조기 양막 파수, 산모 당뇨병, 임신성 고혈압 등이 있었으며, 임상 증상 및 증후로는 발열, 경련, 수유량 감소, 대천문 팽대 등이 있었고, 증상 발현 시기는 조기 발현형이 11례(그람 양성균 4례, 그람 음성균 7례), 지연 발현형이 13례 (그람 양성균 7례, 그람 음성균 6례)였다. 3) 원인균은 그람 양성균이 11례로 coagulase-negative staphylococci와 group B streptococci가 각 3례, Staphyolococcus aureus와 Streptococcus viridans가 각 2례, enterococci가 1례가 있었으며, 그람 음성균은 13례로 Escherichia coli가 7례, Klebsiella pneumoniae가 3례 Pseudomonas aeruginosa, Acinetobactor, Emterobacter가 각 1례씩 있었다. 4) 뇌척수액 검사상 백혈구 수치는 그람 음성균군에서 통계적으로 유의하게 높았으나 단백 수치와 당 수치는 두 군간에 통계적으로 유의한 차이를 보이지 않았다. 5) 뇌초음파 검사상 그람 양성균군에서는 7례(63.6%)에서, 그람 음성균군에서는 10례 (76.9%)에서 비정상 소견을 보였으나 두 군간에 뇌초음파 검사상 비정상 소견의 빈도에 있어서는 통계적으로 유의한 차이를 보이지 않았다. 6) 항생제 감수성 검사에서 그람 양성균군에서는 penicillin계통, 1세대 cephalosporin, vancomycin에, 그람 음성균군에서는 amikacin과 3세대 cephalosporin에 대해 비교적 높은 감수성을 보였다. 7) 사망율(병원내 사망이나 hopeless discharge)은 20.8%(5례)였으며, 예후는 그람 양성균 군과 그람 음성균군에서 통계적으로 유의한 차이를 보이지 않았다. 결 론 : 신생아 세균성 뇌막염은 그람 양성균과 그람 음성균 간의 빈도와 예후의 차이는 보이지 않았고 예후가 불량하므로 세균성 뇌막염이 의심되는 환아에서는 적극적인 치료가 필요하리라 사료된다.

• Journal of Yeungnam Medical Science
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• 제10권1호
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• pp.68-76
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• 1993

1992년 10월 1일부터 1993년 3월 31월까지 영남대학교 의과대학 부속병원 산부인과에 입원하여 만삭분만한 정상산모 35명을 대조군으로, 경증 자간전증 환자 23명을 대상군으로 일산화탄소혈색소와 혈청 철의 농도를 측정하여 다음과 같은 결과를 얻었다. 혈청철의 농도는 임신성 고혈압 환자군에서 $86.5{\pm}6.1{\mu}g/dl$, 정상 산모군에서 $53.2{\pm}6.1{\mu}g/dl$로 임신성 고혈압 환자군에서 유의성 있게 증가하였고, 일산화탄소혈색소 농도도 각 군에서 분만 전 $0.61{\pm}0.21{\mu}g/dl$, $2.55{\pm}0.4{\mu}g/dl$, 분만후 $0.53{\pm}0.2{\mu}g/dl$, $1.21{\pm}0.4{\mu}g/dl$로 임신성 고혈압 환자군에서 높게 나타났다. 간세포 손상의 근거로서 SGOT, SGOP 및 적혈구 파괴의 근거로서 혈색소치와 혈액농축의 근거로소 적혈구용적치는 각각 양 군에서 의의있는 차이가 없었다. 이상의 결과로 미루어 보아 경증 자간전증 환자군에서 정상 산모군에 비하여 혈청 철과 일산화탄소혈색소가 훨씬 증가하였음을 관찰 할 수 있었다.