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이석구,김대연,김신곤,김우기,김인구,김상윤,김성철,김재억,김재천,박귀원,박우현,서정민,송영택,오수명,오정탁,이남혁,이두선,이성철,전용순,정상영,정성은,최금자,최순옥,최승훈,한석주,Lee, Suk-Koo,Kim, D.Y.,Kim, S.G.,Kim, W.K.,Kim, I.K.,Kim, S.Y.,Kim, S.C.,Kim, J.E.,Kim, J.C.,Park, K 대한소아외과학회 2006 소아외과 Vol.12 No.1
본 조사 결과는 16개 병원에서 21명의 회원에 의해 수술 받은 환자 71명의 기록과 전체 설문응답지의 대상인 81명에 대한 설문 응답지를 후향적으로 분석한 것으로 자료로서의 정확성에 한계가 있으나 괴사성 장염이라는 질병에 대한 회원들의 전체적인 의견과 성향을 파악하는데 만족할 수 있었으며 회원들이 동일한 관심에 대하여 논의하는 과정 중에 각자의 관점을 정리하는 계기가 되었기를 기대한다. 앞으로 첨부한 설문지에 따라 환자마다 전향적으로 기술하여 학회에 등록하여 향후 괴사성장염에 대하여 다시 한번 논의하는 자리를 갖기를 바란다. A nationwide survey on necrotizing enterocolitis (NEC) was undertaken among members of the Korean Association of Pediatric Surgeons. The members were required to complete a questionnaire and the case registration form for each patient during the three-year period from July 2001 to June 2004. Eighty one patients were included in the questionnaire, but only 71 patients were registered from 22 members in 16 hospitals. At the same time survey on focal intestinal perforation (FIP) was undertaken and 17 patients were registered from 11 members in 10 hospitals. Total 19,041 newborns were admitted to neonatal intensive care unit during the study period. Eighty one patients (17.27 %) were underwent surgery among 469 babies who were managed under the impression of NEC. The male to female ratio was 2.1:1. The premature were 60.6 %. The most common site of involvement was ileum. Overall and operation survival of NEC were 72 % and 79 %, respectively. The survival was lower in smaller babies, multiple segments involvement and involvement of both the small and large intestine. But there was no difference in survival according to sex or prematurity. The FIP showed very similarity with NEC in terms of incidence, and the age of diagnosis and operation. But the survival was much better and 100 %. The results showed the clinical characteristics of NEC and the trend of management in NEC in Korea. In the future we hope we can discuss about this topic in prospective manner.
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급성 충수염 - 2006년 대한소아외과학회회원 대상 전국조사 -
이석구,김대연,김상윤,김성철,김신곤,김우기,김인구,김재억,김재천,박귀원,박우현,서정민,송영택,오정탁,이남혁,이두선,이명덕,이성철,장수일,전용순,정상영,정성은,정을삼,정풍만,Lee, Suk-Koo,Kim, D.Y.,Kim, S.Y.,Kim, S.C.,Kim, S.G.,Kim, W.K.,Kim, I.K.,Kim, J.E.,Kim, J.C.,Park, K.W. 대한소아외과학회 2007 소아외과 Vol.13 No.2
본 조사 결과는 21개 병원에서 수술 받은 환자 476명의 기록에 대한 전향적인 분석과 23명의 회원에 대한 설문 응답지에 의한 것이다. 미리 환자등록지를 배부하여 6개월 간 전향적으로 기록한 것으로 그 의의가 크다고 할 수 있다. 그러나 전향적 연구계획에 의한 것이 아니므로 통계적인 비교는 시도하지 않았고 급성충수염에 대한 회원들의 전체적인 의견과 성향을 파악하는데 중심을 두었다. 복강경수술은 아직 전체 충수절제술의 30 %에 못 미치고 있으나 설문지에 답한 회원 약 50 %가 복강경 충수절제술을 시행하고 있으며 이 숫자는 계속 증가할 것으로 보인다. 그러나 복강경수술의 결과는 아직 개복수술과 크게 차이가 없는 것으로 보인다. 한편 단순충수염에 대한 예방적 항생제투여 방법과 기간 등에 대한 설문결과에 큰 차이가 있어 이에 대한 학회 중심의 논의가 필요하다고 생각한다. A nationwide survey on acute appendicitis (AAP) was undertaken among members of the Korean Association of Pediatric Surgeons. The members were required to complete a questionnaire and the case registration form for each patient during the 6 months period from the $1^{st}$ October, 2005 to $31^{st}$ March, 2006. Questionnaires were collected from 23 members. Four hundred seventy six patients were registered from 21 hospitals where the members were working. The male to female ratio was 1.67:1. Average age was 9 years and 5 months (range 21 months-20 years). Operations were performed on average 10.4 hours (range 1-230 hours) from arrival at hospital. The average operation time was 59.1 minutes. The average admission days were 5.8 days (range 2-45 days). The most frequent symptoms were abdominal pain (95.1 %), vomiting (50.6 %) and fever (43.7%). The average duration of symptoms was 42.2 hours (range 1 hour-22 days). Leukocytosis (WBC count > 10,000) was found in 85.9%. The most popular diagnostic tools were ultrasonography and CT. Open surgery was performed in 72.1 % and laparoscopic surgery in 27.5 %. Two laparoscopic surgeries were converted to open surgery (0.4 %). Simple appendicitis was found in 54.5 % and complicated appendicitis such as abscess, gangrenous change and perforation in 45.5%. According to the questionnaires 12 hospitals were performing open surgery only in all patients. Four hospitals were performing laparoscopic surgery in all patients. Seven hospitals are performing both surgical methods according to surgeon or occasion. Regarding the use of antibiotics in acute appendicitis, three kinds of antibiotics were used in 40 % of total simple appendicitis patients. The results showed the trend of management in acute appendicitis in Korea. Especially it is necessary for the members to discuss the use of antibiotics for prophylaxis in the simple appendicitis.
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이종근,이상용,김인구,Lee J. G.,Lee S. Y.,Kim I. G. 대한설비공학회 1987 설비저널 Vol.16 No.1
Experiments have been carried out to study the atomisation characteristics of superheated liquid(water) jet injected into the atmosphere through a single-hole nozzle. In present experi-mental range, superheated liquid jet has been observed to be atomised in two-phase effluent type; that is, spray formed by the bubble nucleation in the nozzle. In case of liquid injection through a long nozzle (L/D=29.09), the critical superheat for occurrence of two-phase effluent atomisa-tion can be determined from sudden change of spray angle. Sauter mean diameter of the spray droplets decreases as the degree of superheat increases. For the short nozzle (L/D=7.27), mean diameter increases with the injection pressure, while it decreases for the long nozzle; however for the long nozzle the effect of injection pressure is not significant compared with the short nozzle. For the short nozzle the uniformity of drop size distribution increases with increasing the degree of superheat, but for the long nozzle the effect of superheat on the uniformity is not appreciable.
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