Hirschsprung's Disease의 진단과 치료 : 1992년도 현황 -대한소아외과학회 회원대상 선호도 설문조사-

유수영,김상윤,김우기,김인구,김재억,박귀원,박우현,박주섭,송영택,오수명,이두선,이명덕,이성철,장수일,정상영,정을삼,정풍만,주종수,최금자,최순옥,최승훈,허영수,황의호,Yeo, S.Y.,Kim, S.Y.,Kim, W.K.,Kim, I.K.,Kim, J.E.,Park, K.W.,Park, W.H.,Park, J.S.,Song, Y.T.,Oh, S.M.,Lee, 대한소아외과학회 1996 소아외과 Vol.2 No.1

This report present the result of the national survey of pediatric surgeons' preferences on diagnosis and treatment of Hirschsprung's disease(HD) carried out in 1993. The questionnaires were sent to twenty-seven members of the Korean Association of Pediatric Surgeons (KAPS) working in twenty-four institutions. The questionnaires were designed to determine the individual surgeon's preference for the methods of diagnosis and treatment of the disease. Twenty-three pediatric surgeons from twenty institutions returned completed forms. The total number of patients diagnosed with HD in 1992 was 190 in this group. The estimated incidence of HD was 1/3,900. The most important symptom was delayed meconium passing and the most preferred diagnostic procedure was barium study. Anorectal manometric examination was carried out by 13 pediatric surgeons and 19 confirmed the diagnosis before operation by rectal biopsy, 12 with full-thickness biopsy and 7 with suction. Frozen section biopsy during operation was done by 22 surgeons. Eight surgeons did one stage operation if the age of the patient is suitable. Definitive operation was usually done at the age of 6 to 11 months. The most preferred operation was Duhamel procedure done by 19. Enterocolitis was the most serious complication of HD. Most of patients had normal continence within 6 to 12 months after operation. The follow-up period was less than 6 years in 16 surgeons. The results were presented at the 9th annual meeting of KAPS in June of 1993. This is the first national survey of HD and it can provide guidelines of diagnosis and treatment of Hirschprung's disease even though it is not a detailed study of patient data.

1999년도 한국 신생아외과 현황 -대한소아외과학회 회원대상 전국조사(제 2 차)-

김우기,김상윤,김신곤,김인구,김재천,김현학,박귀원,박우현,송영택,오수명,유수영,이두선,이명덕,이성철,이석구,서정민,정상영,정성은,정을삼,정풍만,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.C.,Kim, H.H.,Park, K.W.,Park, W.H.,Song, Y.T.,Oh, S.M.,Yoo, Y.S.,Lee, D.S 대한소아외과학회 2001 소아외과 Vol.7 No.1

To understand the current status of neonatal surgery in Korea, a survey was made among the 36 members of the Korean Association of Pediatric Surgeons. The response rate was 75 % (26 surgeons in 20 hospitals). Five hundred fifty three neonatal surgical patients treated in 1999 were analyzed. Regional numbers of patients were closely related to the regional population in most areas. Ano-rectal malformations (17 %), pyloric stenosis (16 %), Hirschsprung's disease (13 %), atresia/stenosis of the gut (11 %), esophageal atresia (8 %) were the most common anomalies treated. The majority of operations were done within the first week of life. Seventy one per cent of cases were major life threatening or so-called neonatal index cases. Over-all mortality was 8 per cent. Higher mortality was observed in patients with diaphragmatic hernia (26 %), gastro-intestinal perforation (18 %), NEC (18 %), and esophageal atresia(14 %). Higher mortality was observed in patients with extremely low birth weight (33%) and low birth weight (18 %). Associated anomalies were observed in 20 %. Prenatal ultrasound was performed in 36 per cent with sensitivity of 20 %. Result of this study was compared to the previous report (1994) and that of Japan (1998).

대한소아외과학회 회원의 1995년도 진료현황 및 수련경력 설문조사

김우기,김상윤,김신곤,김인구,김재억,김종석,김현학,박귀원,박영식,박우현,박주섭,송영택,양정우,오수명,이두선,이명덕,이석구,이성철,장수일,정성은,정풍만,최금자,최순옥,허영수,황의호,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.E.,Kim, C.S.,Kim, H.H.,Park, K.W.,Park, Y.S.,Park, W. 대한소아외과학회 1997 소아외과 Vol.3 No.1

To understand the current status of pediatric surgical practice of the members of the Korean Association of Pediatric Surgeons, a survey of the practice of the 31 members in both 1994 and 1995. Twenty five members(80%) representing 20 hospitals responded. An average of four hundred and seventy four cases pediatric surgical operations were performed at individual institution in 1995 with 40 newborn cases. Eighteen members(72%) are currently working at university hospital. Fourteen institutions(70%) are currently classified as tertiary by the health insurance agency. The majority(15 to 60%) of members are working in the metropolitan Seoul area, while five in Taegu area. Sixteen members reported having the title of department head/director. Four members reported occasional non-pediatric surgical practice. Nine members out of 20 reported having independent pediatric surgical out-patient clinic before the establishment of the association(1985). Eight out of 15 members reported being appointed chief of pediatric surgery before 1985. In 20 institutions, 34 full time physicians(27 members, reportedly) are working in pediatric surgery. In regarding to pediatric surgical training, 16 members(64%) received an average of 16 months of training abroad, 5 members trained at home and abroad, and 4 from only at home. There are no differences in length of training periods in these groups. Twenty one members received their basic pediatric surgical training before 1985, the year of inauguration of the association. Twelve members received post-pediatric surgery refresher courses averaging 11 months' duration, after 2-11 years. Thirteen participants of this study belongs to the founding members of the association.

1994년도 한국신생아외과의 현황 - 대한소아외과학회 회원대상 전국조사 -

김우기,김상윤,김신곤,김인구,김재천,박귀원,박영식,박우현,박주섭,송영택,오수명,이두선,이명덕,이성철,장수일,정을삼,정풍만,주종수,최순옥,허영수,황의호,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.C.,Park, K.W.,Park, Y.S.,Park, W.H.,Park, J.S.,Song, Y.T.,Oh, S.M.,Le 대한소아외과학회 1996 소아외과 Vol.2 No.1

To understand the current status of neonatal surgery in Korea, a survey was made among the 27 members of Korean Association of Pediatric Surgeons. Response rate among surgeons was 78 percent, eighteen hospitals participated in this study. Five hundred and three cases of neonatal surgical patients were analyzed. In Korea, about 50% of cases were treated at the hospital in the capital city area. Regional number of patients were closely related to the regional population. Imperforate anus(19%), atresia/stenosis of gut(12%), and Hirschsprung's diseases(12%) were sitting at the top in the list. Majority of operation was done within the first week of life, especially during the first 24 hour period. Eighty per cent was major or so called index cases. Mortality in so-called index cases was 17%. High mortality was observed in patients with diaphragmatic hernia(47%), gastrointestinal perforation(65%) and esophageal atresia(28%). Low birth weight babies showed higher mortality in gastrointestinal perforation, esophageal atresia and abdominal wall defect. These were compared to 1993 survey of Japanese Society of Pediatric Surgeons.

소아외과의 지수 질환 - 대한소아외과학회 정회원을 대상으로 한 2000년도 전국 조사 -

이명덕,김상윤,김우기,김인구,김성철,김신곤,김재억,김재천,김현학,박귀원,박우현,서정민,송영택,오수명,유수영,이두선,이석구,이성철,정상영,정성은,정을삼,정풍만,조마해,Lee, M.D.,Kim, S.Y.,Kim, W.K.,Kim, I.K.,Kim, S.C.,Kim, S.K.,Kim, J.E.,Kim, J.C.,Kim, H.H.,Park, K.W.,Park, W 대한소아외과학회 2001 소아외과 Vol.7 No.2

Membership qualifications and recognition of the subspecialty training programs by the Korean Association of Pediatric Surgeons(KAPS) have been determined by criteria based on the number of neonatal and total pediatric surgical cases registered, since 1989 (Index cases). The numbers are based on a survey of the 14 founding members of the society by Jung et al. in 1987. The current survey is to review the present status of the index cases from 1997 to 1999 among 36 members of the KAPS. Two surveys were undertaken for this study. In the first survey, cases were collected by the registration form, composed of neonatal(N), important pediatric surgical cases (I), tumor and other similar operations(T) and other common pediatric surgical cases(O). Thirty members responded. and the result was discussed at the Topic Discussion section of the 15th Annual Congress of KAPS, 2000. The second survey analyzed additive data, proposed during discussion at the Congress. Twenty-three members responded. This report is the analysis of the both surveys. The average numbers of the cases/year/surgeon of N, I, T, O and total were 19.5, 51.8, 9.5, 77.1 and 356.5. respectively. The number of index cases(N+I+T)/year/surgeon was 80.8. The ratio of (N+I+T)/total cases was 0.3. Seventeen of 30 members have more than 20 cases of N per year. Twelve members have more than 150 cases, and 13 do more than 100 cases of I per year. Fourteen members have more than 10 cases of T per year. Nineteen and 10 members experienced more than 150 and 100 of index cases(N+I+T) per year. A new list of the index cases and coding system are proposed for the future regular update. 대한소아외과학회의 연례 행사인 2000년도 주제토의를 소아외과의 지수 질환으로 정하여 1999년 말 현재 3년 이상의 진료 실적을 가진 대한소아외과학회 정회원 36명을 대상으로 미리 작성된 조사서에 의하여 2차례의 수술 증례 수 등록을 시행하였다. 대상 환자는 1997년부터 1999년 말까지 3년간 수술이 시행된 환자로 하였으며, 1차 조사에서 30명이 응답하였고, 미비점 보완을 위한 2차 조사에는 26명이 응답하여 이 성적을 요약하였다. 본 성적을 바탕으로 향 후 대한소아외과학회의 지수 질환 대상 목록표를 작성 제시하였으며, 이를 코드화 하고자 제안하였다.

담관낭종 -대한소아외과학회회원 대상 전국조사-

최금자,김대연,김상윤,김성철,김신곤,김우기,김인구,김재억,김재천,김해영,김홍주,박귀원,박우현,박진영,백홍규,서정민,송영택,오수명,유수영,이두선,이명덕,이석구,이성철,박영식,이태훈,정상영,Choi, Kum-Ja,Kim, D.Y.,Kim, S.Y.,Kim, S.C.,Kim, S.K.,Kim, W.K.,Kim, I.K.,Kim, J.E.,Kim, J.C.,Kim 대한소아외과학회 2003 소아외과 Vol.9 No.1

본 조사 결과는 32개 병원의 39명의 회원에 의해 수술받은 환자 348명의 기록과 회원 37명의 설문 응답자를 분석한 것으로 많은 수의 기록지가 내용이 불충분하거나 일치되지 않은 기술로 인해 자료로서의 한계가 있었다. 특히 췌담관합류 이상에 대한 기록 중 약 절반이 미상으로 기록된 것에서 알 수 있드시 자료가 매우 미흡하였고, 담관낭종의 유형을 정하는 것 예후 인자 및 산 전 진단된 담관낭종의 수술 적기등에 대하여도 회원마다 견해 차이가 있으나 심도있는 토론이 이루어지지 않았다. 따라서 이 결과를 외국의 통계 분석과 비교하는 것 보다는 회원들의 향 후 진료와 연구에 참고가 될 수 있다는 것에 의미를 두고자 하며, 회원들이 동일한 등록지를 작성하는 전향적 연구로 우리나라 담관낭종에 대한 분류, 췌담관 합류이상, 예후 인자들에 대한 재 논의의 출발점이 되기를 기대한다. A nationwide survey on choledochal cyst was undertaken among 39 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 five year period of 1997 to 2001. Three hundred and forty eight patients were registered from 32 institutions. The average number of patients per surgeon was one to two every year. The male to female ratio was 1:3.4. The age of patients on diagnosis was $49.0{\pm}44.4$ months. The geographic distribution was 34.8% in Seoul and Kyoungki-do, 33.3% in Kyoungsang-do, 17.9% in Cholla-do, and 8.5% in Choongchung-do, in order of frequency. The three common clinical presentations were abdominal pain (63.8%), vomiting (35.3%), and jaundice (29.1%). Only seven patients (2%) presented with classic triad, and 25 patients were diagnosed by antenatal ultrasonographic examination. According to the Todani Classification, 238 patients (7l.3%) were type 1, 3 (0.9%) type 11, and 93 (27.8%) type IV. At the time of the operation, three important associated conditions were choledocholithiasis in 45 patients (15.1%), liver fibrosis (Grade 1-4) in 35, and previous operative procedure for biliary diseases in 10. Associated anomalies were observed in 13 patients (3.8%). Three hundred thirty nine (98.8%) of 343 lesions were treated by Cyst excision and Roux-Y hepaticoiejunostomy. One hundred seventy-six patients had an anomalous arrangement of the pancreatobiliary ductal system (APBD): APBD was not in 92 patients, biliary duct joined to the pancreatic duct in 51, and pancreatic duct joined to the biliary duct in 26. There were 8.5% early, and 7.7% late phase operative complications. The major complications were bleeding, anastomotic leakage, and acute pancreatitis. The combination of acute abdomen and choledochal cyst may suggest spontaneous rupture. Because of the development of late intrahepatic bile duct stones, long term follow up after cyst excision and hepaticojejunostomy is required. The optimal time of surgical intervention should also be considered in the situation of routine use of antenatal ultrasonographic examination. This is the first review of the choledochal cyst in Korea and provides baseline data for future comparisons.

새기형(?畸形, Branchial Anomalies) - 대한 소아외과학회 회원을 주 대상으로 한 전국 조사 -

박우현,권수인,김상윤,김성철,김신곤,김우기,김인구,김재억,김현학,박귀원,박영식,박주섭,송영택,안우섭,오남근,오수명,유수영,이남혁,이두선,이명덕,Park, W.H.,Kwon, S.I.,Kim, S.Y.,Kim, S.C.,Kim, S.K.,Kim, W.K.,Kim, I.K.,Kim, J.E.,Kim, H.H.,Park, K.W.,Park, Y.S.,Park, 대한소아외과학회 1996 소아외과 Vol.2 No.2

The survey on branchial anomalies was conducted by Korean Association of Pediatric Surgeons. A total of 173 cases were reported, which were managed by 36 members and cooperators during the three years from January 1, 1993 through December 31, 1995. The following results were obtained by retrospective analysis of the 173 cases of branchial anomalies. The presenting symptoms were cervical mass in 101 cases, pit with or without discharge in 71, cervical abscess in 47 and respiratory difficulty in 3. The average age of the patients with cervical abscess was 52 months. Seventy(79%) of 89 patients with branchial anomalies and a cystic mass had their first clinical manifestations by 1 year of age, while 40(51%) of 78 patients with only a branchial cyst had their first clinical manifestation in first year of life. Radiologic studies were carried out in 77 patients (43%). The preferred diagnostic modalities were ultrasonography(47 patients), simple neck radiogram(19) and CT scan(17). Preoperative diagnosis was correctly made in 156(91%) of 173 patients. Seventeen patients were incorrectly diagnosed as thyroglossal duct cyst in 5 patients, cystic hygroma in 4, dermoid cyst in 3, and lymphadenopathy in 3. There were no remarkable difference in sex and laterality of presentation but bilateral lesions were found in 9(5%) patients and unusual locations of the anomalies were the manubrium, left subclavicular area, median cervial area, preauricular and parotid area. There were 78(45%) patients with cyst, 52(30%) patients with sinus, 35(20%) patients with fistula and 8(5%) patient with skin tag. Embryological classification was possible in only 64(37%) patients. The 2nd branchial anomaly was present in 50(78%), the 1st branchial anomaly in 10(18%), and the 3rd or 4th branchial anomaly in 4(6%). Histopathological study of the lining epithelium(N=134) is recorded that 45% were lined with squamous epithelium, 17% with respiratory epithelium, 6% with. squamous and respiratory epithelium, 14% with inflammatory change. Lymphoid tissue was common(62%) in the wall of the lesions. Twelve(7%) of 158 patients had postoperative complications including wound complication, recurrence and facial nerve palsy.

선천성 장폐쇄증 2차 조사 - 대한소아외과학회 회원을 주 대상으로 한 전국조사 -

김성철,김대연,김상윤,김인구,김인수,김재억,김재천,김현영,박귀원,박우현,박진영,서정민,설지영,오수명,오정탁,이남혁,이명덕,이석구,이성철,정상영,정성은,정연준,정풍만,최금자,Kim, Seong-Chul,Kim, D.Y.,Kim, S.Y.,Kim, I.K.,Kim, I.S.,Kim, J.E.,Kim, J.C.,Kim, H.Y.,Park, K.W.,Park, W 대한소아외과학회 2010 소아외과 Vol.16 No.1

본 조사는 2007년부터 2009년까지 3년간 본 학회 정회원들에 의하여 수술받은 장폐쇄증 환아를 대상으로 한 후향적 조사이다. 또한 본 학회에서는 1994년부터 1996년까지 3년간의 증례를 대상으로 같은 조사(1 차조사)를 진행한 바 있다. 1 차 조사와 비교하여 본 조사에서 보이는 특징은 아래와 같이 요약할 수 있다. - 총 증례 수는 비슷하였으나 출생률을 감안하여야 할 것이다. - 각 기형별 비율은 비슷하였다. - 미숙아 및 저출생체중아의 비율은 증가 하였다. - 산전진단율은 증가하였다. - 복부단순촬영만 한 경우는 감소하였다. - 다른 기형이 동반된 예가 증가하였다. - 사망률이 13.8 %에서 3.6 %로 감소하였다. 장운동의 회복은 공장폐쇄증에서 십이지장이나 회장폐쇄증에서 보다 더뎠다. 하지만 십이지장-공장 이행부에서 문합부까지의 거리가 기술되지 않은 예가 많아 소위 "High Jejunal obstruction"에서의 장운동 회복기간을 알아 보지 못 하는 아쉬움이 있었다. 또한 주름형성술(plication) 또는 장의 직경을 줄이는 수술(tapering)의 효과도 시행한 예수가 작고, 문합부 위치의 기술 부족으로 알아 보지 못 하였다. 십이지장폐쇄증의 화타씨유두부와 위치 역시 향후 보다 정확한 수술기록을 토대로 조사되어야 할 것으로 생각된다. 치료 성적의 눈부신 향상은 여러 회원들의 각고의 노력과 의학의 발달에 기인한 것으로, 사망률 0 %를 향한 노력이 지속되어야 할 것이다. The members of the Korean Association of Pediatric Surgeons conducted a retrospective study of two hundred and twenty-two cases of intestinal atresia for the period from January 1, 2007 to December 31, 2009. Seventeen hospitals were involved. There were 76 duodenal, 65 jejunal, and 81 ileal atresias (3 colonic). The male to female ratio was 0.85:1 in DA and 1.34:1 in JIA. Ninety-four patients(43.3 %) were premature babies (DA 40.3 %, JA 64.6 %, IA 28.8 %), and 70 babies (32.0 %) had low birth weight (DA 38.7 %, JA 44.4 %, IA 16.0 %). Antenatal diagnosis was made in 153 cases (68.9 %). However, 27 infants (17.6 %) with antenatal diagnosis were transferred to the pediatric surgeon's hospitals after delivery. Maternal polyhydramnios was observed in 81 cases (36.59 %) and most frequent with proximal obstruction. In forty-four cases (19.8 %), only simple abdominal film was taken for diagnostic study. The associated malformations were more frequently observed in DA - 61.8 % in DA and 22.6 % in JIA. Meconium peritonitis, small bowel volvulus and intussusception were more frequently associated with ileal atresia. The overall mortality rate was 3.6 %. (Abbreviations: DA;duodenal atersia, JA;jejunal atresia, JIA;jejunoileal atresia, IA;ileal atrsia).

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.

괴사성 장염 - 대한소아외과학회회원 대상 전국조사 -

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.