다발성 대칭성 지방종증 -1례 보고-

이조한,홍종면,안재호,Lee, Jo-Han,Hong, Jong-Myeon,An, Jae-Ho 대한흉부심장혈관외과학회 1996 Journal of Chest Surgery (J Chest Surg) Vol.29 No.2

다발성 대칭성 지방종증은 경부, 견갑부, 흉부, 복부 및 서혜부에 대칭적으로 피하지방종을 형성하는 드문 질환으로 최근에는 지각 및 자율신경계의 이상동반이 보고되 기도 하나, 현재까지는 원인이 화실하게 밝혀지지 않고 있다. 본 증례는 기관압박을 동반하는 종격동을 침범한 다발성 대칭성 지방종에 대한 증례이다. 환자는 55세 남자로 호흡곤란과 약 10년전부터 서서히 성장하는 경부, 견갑부, 흉부, 복부 및 서혜부의 종괴를 주소로 내원하였으며, 수십년의 심한 음주력이 있었다. 경부와 기관주위를 포함하는 종격동의 지방종괴는 transverse cervical incision을 통해 제거하였다. 그러나 기관주위의 불완전한 지방종괴의 제거로 인한 기관압박의 완화를 위해 술후 15일만에 재수술을 시행하였다. 술후 환자는 종격동기흥 및 피하기종이 심하여 2일 후 응급기관절개술을 시행받은 후, 영구기관절개술후 퇴원하였다. Multiple symmetric lipomatosis is a rare disease characterized by progressive growth of subcutaneous fat masses which are located symmetrically at neck, shoulders, chest, abdomen and groin. Recent surveys revealed a high incidence of combined somatic and autonomic neuropathy. The exact cause of the disease is not known. We have experienced one case of multiple symmetric lipomatosis with mediastinal involvement with symptomatic compression of trachea. The patient was a 55-year-male, complaining of dyspnea and slowly enlarging multiple symmetric masses at the neck, shoulders, chest, abdomen, flank and groin over a period of 10 years. He had a habit of excessive alcohol intake for many years. The fatty masses in the neck and the upper mediastinum including peritracheal region were excised through transverse cervical incision. But, because of the incomplete excision of peritracheal fatty tissue, we performed reoperation for the relief of residual tracheal compression at the 15th postoperative day. Two days later emergent tracheostomy was performed due to postoperative pneumomediastinum and subcutaneous emphysema. He could discharge with permanant tracheostomy.

외상성 기관지 파열 -3례 보고-

이조한,홍종면,안재호,Lee, Jo-Han,Hong, Jong-Myeon,An, Jae-Ho 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.5

The injuries to the bronchi have been reported with increasing frequencies. The most common cause of such injuries is compression or crushing chest trauma. Early diagnosis and emergent repair should be done for the good prognosis. We report 3 cases who had bronchial injuries after traffic accident. Our operative procedures were a primary bronchial repair for 17 months old boy, a pneumonectomy for delayed recognition and a bronchoplasty procedure 63 days after trauma. All these bronchial ruptures were successfully treated and discharged.

미숙아 동백관개존증의 조기결찰술 : 1500gm 이하의 미숙아 동맥관개존중의 치료로서의 인도메타신 투여와 수술적 결찰술의 비교

이조한,이성재,홍장수,한헌석,박범수 충북대학교 의학연구소 2000 忠北醫大學術誌 Vol.10 No.2

연구목적 : 미숙아(특히 1500 g 이하)에서의 동맥관개존증에 대한 초기치료로 인도메타신 투여군과 인도베타신의 투여 없이 조기에 수술적 치료를 받은 환아 군의 임상기록을 조사 분석하여 향후 미숙아 동맥관개존증에 대한 적절한 치료 방향을 설정하고자 하였다. 대상 및 방법 : 1995년 7월부터 1998년 8월까지 충북대학병원 신생아중환자실에 입원한 환아중, 동맥관개존증을 동반한 1500 g 이하의 미숙아 30명을 대상으로 인도메타신치료를 받은 군과 인도메타신치료없이 직접 외과적 결찰술을 시행 받은 군으로 대별하여 치료결과를 비교하여 분석 하였다. 결과: 30명중 14명의 환아가 인도메타신투여를 받았고 이중 5명(36%)이 인도메타신 치료에 실패하였으며, 5명중 4명이 외과적 결찰술을 시행 받았다. 합병증은 6명(43%)에서 발병하였고 인도메타신 투여 환아의 사망은 4명(29%)이었으며 이중 인도메타신 투여의 합병증으로 인한 경우가 2례(14%)가 있었다. 16명의 환아는 인도메타신 투여 없이 외과적 결찰술을 시행 받았으며 수술 및 마취로 인한 합병증 및 사망은 없었으나 병원 사망은 5명(33%)이었다. 결론: 동맥관개존증을 동반한 1500 g 이하의 미숙아에서는 인도메타신투여시 투여제한요인 및 높은 합병증과 실패율로 인하여 외과적 결찰술을 조기에 시행하는 것을 고려하여야 할 것으로 사료된다. Purpose : This study is to suggest the optimal method as a treatment for the patent ductus arteriosus in the very low birth weight premature infants(<1500 g). Materials and Methods : Between July 1995 and August 1998, 30 very low birth weight premature infants(<1500 g) with evidence of a hemodynamically compromise underwent indomethacin therapy(Group I, n= 14) or early surgical ligation(Group II, n= 16). The medical and surgical groups were compared. Results : The failure rate of indomethacin therapy was 36%(5/14) and 4 patients who were unresponsive to medical treatment had surgical ligation. Side effects thought to be related to indomethacin were noted in 6 patients(43%). There were 4 deaths in Group I(29%) and 2 deaths were attributed to the indomethacin related complications. Among the infants(16) who underwent ligation, there was no failure and complication related to the operation. There were 5 deaths in Group II(33%) but were associated with preexisting preoperative conditions including contraindications of indomethacin administration. Conclusion : We conclude that early sugical ligation of the PDA in the very low birth weight infant can be a safe and effective procedure. However, long-term studies will be needed to confirm this later.

Evaluation of the Korea Meteorological Administration Advanced Community Earth-System model (K-ACE)

이조한,김지선,선민아,김병현,문혜진,성현민,김진원,변영화 한국기상학회 2020 Asia-Pacific Journal of Atmospheric Sciences Vol.56 No.3

Scientific community has been elaborating to better understand the observed climate and its variations, and to improve the capability for predicting future climate. Many modeling groups participating in the Coupled Model Inter-comparison Project (CMIP) have been working towards multi-model ensemble approach that have become a standard technique for projecting future climate and for assessing associated uncertainties to deal with intrinsic shortcomings of climate models. Within this context, the National Institute of Meteorological Sciences/Korea Meteorological Administration (NIMS/KMA) has developed the KMA Advanced Community Earth-system model (K-ACE) under KMA-Met Office collaboration for climate research. This paper provides general descriptions of the first generation K-ACE model including the coupling strategy, as well as preliminary evaluations of the model performance in mean climate fields. The first generation K-ACE model appears to capture the mean climatology and the inter-annual variability of the observed climate. Horizontal distributions and the variability of the surface and pressure-level variables agree well with observations with correlation coefficients of 0.88–0.99 and 0.69–0.99, respectively. Measured in terms of performance index between the observed and simulated fields, the K-ACE performance is comparable with those of 29 CMIP5 models. This study also identifies key weaknesses of the KACE in the present-day climate. Improving these deficiencies will be a topic of future studies. The NIMS/KMA will employ the K-ACE model to contribute to the CMIP6 experiment.

RCP 기후변화 시나리오를 이용한 미래 해빙변화 전망

이조한,이효신,간순영,김민지,백희정,부경온,강현석,조천호 한국기상학회 2012 한국기상학회 학술대회 논문집 Vol.2012 No.4

초기화된 태풍의 구조와 발달

이조한,이동규 한국기상학회 1998 한국기상학회 학술대회 논문집 Vol.1998 No.-

기후변화 예측을 위한 지구시스템모델의 개발 현황

이조한,변영화,강현석,박수희,함수련,박수현,권원태 한국기상학회 2009 한국기상학회 학술대회 논문집 Vol.2009 No.4

폐절제술후의 폐기능 예측에 대한 나선식 정량적 CT의 유용성 (나선식 정량적 CT와 폐관류스캔과의 비교)

이조한 대한흉부심장혈관외과학회 2000 Journal of Chest Surgery (J Chest Surg) Vol.33 No.10

Background : the prediction on changes in the lung function after lung surgery would be an important indicator in terms of the operability and postoperative complications. In order to predict the postoperative FEV1 - the commonly used method for measuring changes in lung function- a comparison between the quantitative CT and the perfusion lung scan was made and proved its usefulness. Material and Method : The subjects included 22 patients who received perfusion lung scan and quantitative CT preoperatively and with whom the follow-up of PFT were possibles out of the pool of patients who underwent right lobectomy or right pneumonectomy between June of 1997 and December of 1999. The FEV1 and FVC were calibrated by performing the PFT on each patient and then the predicted FEV1 and FVC were calculated after performing perfusion lung scan and quantitative CT postoperatively. The FEV1 and FVC were calibrated by performing the PFT after 1 week and after 3 momths following the surgery. Results : There was a significant mutual scan and the actual postoperative FEV1 and FVC at 1 week and 3 months. The predicted FEV1 and FVC(pneumonectomy group : r=0.962 and r=0.938 lobectomy group ; r=0.921 and r=913) using quantitative CT at 1 week postoperatively showed a higher mutual relationship than that predicted by perfusion lung scan(pneumonectomy group : r=0.927 and r=0.890 lobectomy group : r=0.910 and r=0.905) The result was likewise at 3 months postoperatively(CT -pneumonectomy group : r=0.799 and r=0.882 lobectomy group : r=0.934 and r=0.932) Conclusion ; In comparison to perfusion lung scan quantitative CT is more accurate in predicting lung function postoperatively and is cost-effective as well. Therefore it can be concluded that the quantitative CT is an effective method of replacing the perfusion lung scan in predicting lung function post-operatively. However it is noted that further comparative analysis using more data and follow-up studies of the patients is required.

보상에 대한 지각과 혁신행동의 영향관계에서 직무열의의 매개효과: 중국의 기업 근로자들을 대상으로

이조기,이승계,이의연 한국무역학회 2019 貿易學會誌 Vol.44 No.4

The purpose of this study is to determine the Mediating Effects of Job Engagement between Perception in Compensation and Innovation Behavior in Chinese Enterprise Workers. The empirical study was conducted by a questionnaire survey on 700 workers in companies located in the southern area of China. The statistical analysis results revealed the following. First, the perception in compensation of Chinese workers has significant positive effects on the innovation behaviors. And intrinsic compensation has more relative significant effects than extrinsic compensation. Second, the perception in compensation has significant positive effects on the job engagement. In this case, extrinsic compensation has more relative significant effects than intrinsic compensation does. Third, job engagement of workers has significant positive effects on the innovation behaviors. Fourth, job engagement has mediating effects between perception in compensation and innovation behaviors. In conclusion, for the sustainable growth and competitive advantage of Chinese enterprises, it is important to perceive the needs of extrinsic and intrinsic perception in compensation of workers, and to design suitable compensation policies and programs to promote innovation behaviors and job engagement considering the distribution and procedural justice, and also to reflect the needs and job characteristics of workers.

10 억분의 1 미터가 여는 세상 - 나노기술

이조원(Jo Won Lee) 한국공업화학회 2001 공업화학전망 Vol.4 No.5

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