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.

消化性潰瘍 穿孔에 對한 外科的 考察

朴周燮(J.S. Park),廉東澈(Dong Cheol Youm) 대한외과학회 1980 Annals of Surgical Treatment and Research Vol.22 No.8

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.

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.

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.

Lithography Malignment 계측 정합성 향상을 위한 Overlay Mark Pattern 최적화

최병길(B. G. Choi),최미니(M. N. Choi),박주섭(J. S. Park ),전충삼(C. S. Jun),이동준(D. J. Lee) 한국정밀공학회 2016 한국정밀공학회 학술발표대회 논문집 Vol.2016 No.5월

간헐포기를 이용한 고도처리공정에서 SRT와 인제거의 상관관계

신응배,주봉현,박주섭,이두진,김연권,이미경 漢陽大學校 環境科學硏究所 2001 環境科學論文集 Vol.22 No.-

생물학적 하·폐수처리에서 고형물 체류시간(Solid Retention Time, SRT)은 공정내에서 적절한 미생물량과 성장상태를 유지하기 위한 중요한 운전 인자들 가운데 하나이다. 특히 고도처리 공정에서 생물학적 인제거는 궁극적으로 잉여슬러지의 폐기를 통해 이루어지므로, 미생물의 성장률에 영향을 미치는 SRT와 폐기되는 슬러지내의 인 함유량은 매우 중요한 의미를 지닌다. 본 연구에선 lab scale의 간헐포기공정을 이용하여 SRT의 변화에 따른 인제거 효율 평가, 슬러지내 인 함유량 변화 및 미생물 분포에 대한 예측으로 SRT에 따른 인제거 특성을 살펴보았다. 반응기의 SRT를 15, 20 및 30일로 운전하여 인제거 효율을 평가한 결과, 인제거 효율은 각각 78.4%, 93.3% 및 84.0%로 나타나 SRT 20일이 가장 높았으나, 슬러지내의 인 함유량은 5.41%, 5.88%로서 SRT가 증가할수록 인 함유량이 증가하였다. SRT가 30일인 경우가 슬러지내 인 함유량이 가장 높았음에도 불구하고, SRT 20일로 운전한 경우의 인제거율이 가장 높았던 이유는 잉여슬러지로 폐기되는 인부하량이 가장 많았기 때문이다. SRT의 변화에 따라 미생물의 분포 변화를 살펴보기 위해 일반 표준활성슬러지와 SRT 15, 20, 30일로 운전된 본 반응기의 슬러지를 대상으로 호기성 소화실험을 실시하였다. 일반 표준활성슬러지는 소화실험 초기에 급격한 VSS의 감소를 보였으나, 인 방출량은 매우 적어, 슬러지내에 phosphate accumulating organisms(PAOs)가 거의 존재하지 않는다는 것을 확인할 수 있었으며, 고도처리 슬러지의 경우 SRT가 긴 슬러지 일수록 VSS의 감소율은 작아지지만, 인 용출량은 증가하여 슬러지내에 PAOs가 우점화되어 있는 것으로 조사되었다. The solid retention time (SRT) is one of the important control parameters in biological phosphorus removal. In this study, the lab scale biological nutrient removal (BNR) reactor using intermittent aeration was operated at various SRTs to evaluate the phosphorus removal efficiency. At SRTs of 15, 20, and 30 days, the phosphorus removal efficiencies were 78.4%, 93.3%, and 84.0%, respectively, giving an optimal SRT at 20 days and phosphorus contents in the biomass were 5.41%, 5.88%, and 6.26%, respectively. The amount of phosphorus removed by wasting excess sludge was estimated as 87.78 mgP/d, 114.03 mgP/d, and 90.90 mgP/d respectively. Aerobic digestion experiments were also carried out to investigate the behavior of the phosphate accumlating organisms (PAOs) in biomass produced at different reactors. An activated sludge from the BNR process showed slower volatile suspended solids (VSS) destruction rate and higher amount of phosphorus release, compared to the conventional activated sludge (CAS), suggesting the CAS had little PAOs compared to the activated sludge from the BNR process Also slower destruction rate and higher amount of phosphorus release in the sludge at 30 days SRT compared to the sludge at 15 days SRT. suggested PAOs were more predominant at longer SRT.

혐기-간헐폭기 공정에서의 Denitrifying Phosphorus removing Bacteria(DPB) 특성

신응배,윤은경,이두진,박주섭,주봉현 한양대학교 환경공학연구소 2000 環境科學論文集 Vol.21 No.-

본 연구에서는 Enhanced Biological Phosphorus Removal(EBPR) 공정 내에 존재하는 phosphate accumulating oganisms(PAOs) 중 탈질 기능을 수행할 수 있는 denitrifying phosphorus removing bacteria(DPB)의 존재와 그 거동을 살펴보았다. 실험은 연속식과 회분식으로 나누어 수행하였는데, 연속 실험에서 EBPR 공정으로 설계된 혐기-간헐폭기 공정은 인제거 효율이 93.3%로 PAOs 미생물의 활성이 높음을 알 수 있었다. 회분식 실험에서는 무산소 조건에서 유기물이 부족한 경우 탈질과 함께 인의 섭취가 관찰됨에 따라 DPB의 존재를 확인할 수 있었으며, nitrate의 농도를 각각 5, 10, 20 mgNO3-N/L로 다르게 주입하여 인의 섭취율과 탈질율을 비교한 결과 선형비례 관계임을 알 수 있었다. 무산소 조건에서의 인섭취율은 호기조건에서의 인섭취율보다 낮았으며, 유기물의 양이 충분한 경우에는 인이 방출되나 유기물이 부족한 경우에는 호기조건과 같이 인을 섭취함을 알 수 있었다. 결론적으로 EBPR 공정 내에는 DPB가 존재하며 무산소조건에서 DPB의 거동은 유기물과 nitrate의 농도에 따라 인을 섭취하거나 방출한다는 것을 알 수 있었다. Investigated in this study are the occurrence and their behavior of denitifying phosphorus removing bacteria (DPB). They are capable of phosphorus removal and denitrification simultaneously under anoxic conditions. The experiment is conducted in two ways. The phosphorus removal efficiency is evaluated in an anaerobic-intermittent aeration process which is designated as Enhanced Biological Phosphorus Removal(EBPR) process. Then, several batch tests are carried out in oder to elucidate how the DPB respond in an anaerobic-intermittent aeration process under varying conditions. Results show that the overall phosphorus removal efficiency is as high as 93.3% in a continuous flow system. In batch tests, the presence of DPB under anodic conditions is observed with a limited amount of substrate. Several batch tests are run under anoxic conditions. The test samples are spiked with different nitrate concentrations of 5, 10 and 20 mgNO3-N/L. The tests reveal that both phosphorus uptake rate and denitrification rate are proportional. The rate of phosphate uptake under anoxic conditions is slower than under aerobic conditions. Results in this experiments clearly indicate that the phosphorus release and uptake under anoxic conditions depend on the presence of available organic substrate.