기능의 분화를 통한 복합역사 Concourse의 연계방안에 관한 연구 : 블럭내부의 단절에 대한 연계를 중심으로 Focused on connections of disconnected city block

정재욱,이인수 대한건축학회 2003 대한건축학회논문집 Vol.19 No.6

This study aims to evaluate the severed urban space caused by the inner city railway tracts and to suggest a useful methods of connected system. The connecting factors of concourse is applicated as functional differentiation and to combine each building blocks to activate urban mixed use space for pedestrian movements in the affected urban area. Continuous flow of the contemporary examples of redeveloped existing railway station area in Germany and U.K are evaluated to elicit some significant characteristics and method which maybe applicated in korea. Followings are prototypes of the concourse. ① Concourse connection for multi=building in a single block ② Concourse connection between underground and elevated walkways of multiple buildings ③ Concourse connection by singular building in multi-blocks ④ Concourse connection by elevated deck over railways

住商複合 建築의 設計事項에 관한 硏究 : 一單一高層形 住商複合을 中心으로 Focused on the Single Tower Type Mixed-Use Building

鄭在旭 단국대학교 1995 論文集 Vol.29 No.-

The purpose of this study is to evaluate fundamental factors of designing mixed-use building in accordance with building purpose and functional characteristics, thus to propose for a feasible design strategics. The study conducts real design problems with the project site located in 76-1 Hwajung region of Koyang Kyungki to seek for a multiplicity of design problems and issues of the mixed-use building in process of the development. By the investigation of relative design composition factors, the study reinforces importance of creating a better and practical mixed-use environment with a much depend on the level of comprehensive design solutions. The design problem is mainly focused on the single tower type of mixed-use building due to the located site conditions as well as given space program of the complex.

어린이에서 함치성 낭과 연관된 매복 소구치와 대구치의 치료

신차욱,김영재,김정욱,장기택,이상훈,김종철,한세현 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.4

치아 매복은 어린이 환자 진료시에 자주 관찰되는 맹출 장애이다. 어린 환자에서 매복된 치아가 존재하는 경우,함치성 낭과 연관이 있을 가능성이 높다. 함치성 낭은 제3대구치를 제외하고는 상악 견치,하악 소구치 부위에서 가장 호발하며,점진적인 증식으로 악골이 팽윤되어 안모를 변화시키며,주위 악골의 파괴와 치근의 흡수를 야기하거나 침범된 치아의 변위를 유발할 수 있으므로,조기 진단과 적절한 치료가 무엇보다도 중요하다. 함치성 낭과 연관된 치아가 과잉치나 지치라면,치아의 발거를 포함한 완전한 낭종 적출술이 적절한 치료라 할 수 있지만,그렇지 않은 경우에는 환자의 심리적,정선적 외상을 예방하기 위해 원인 치아의 보존이 고려되어야 할 것이다. 이뿐만 아니라,치아의 변위 정도,골 파괴 정도,치근의 성숙도,주위 치아와의 관계,환자의 교합과 구강 악안면 영역의 성장 양상 등도 같이 고려되어야 할 것으로 생각된다. 본 증례에서는 위와 같은 사항들을 고려하여,함치성 낭과 연관된 매복 소구치와 대구치블 낭종 적출술 후 공간 유지,외과적 수술과 교정적 견인,외과작 발거 후 교정적 배열 등의 방법을 통해 양호한 치료 결과를 얻었기에 보고하는 바이다. Tooth impaction is a frequently observed eruption anomaly in pediatric dental practice. Young patients with impacted or unerupted teeth have more prediction for dentigerous cyst formation. Dentigerous cyst presents radiographic features. unilocular or multilocular radioluscency. Cysts occur most frequently in the premolar region except third molar. Dentigerous cysts can grow to a considerable size, and large cysts may be associated with a painless expansion of the bone in the involved area. Extensive lesions may result in facial asymmetry, osseous destruction, root resorption of proximal teeth and displacement of associated tooth. The nature of the causative tooth influences the type of surgical treatrnent required for the dentigerous cyst. If the cyst is associated with a supernumerary or wisdom tooth. complete enucleation of the cyst along with extraction of tooth may be the first treatment choice. Otherwise. preservation of the associated teeth should be considered to prevent a young patient from psychological and mental trauma because of the loss of tooth. We should consider the degree of tooth displacement. osseous destruction and growth pattern of oromaxillofacial area when planning treatment. Thus a proper and logical treatment planning can help a proper growth and development of oromaxillofacial area and can save the patient from a psychological and mental trauma. This report describes 4 cases of the management of impacted premolars and molars associated with dentigerous cysts in children.

프랭크 게리와 피터 아이젠만의 건축 디자인 프로세스에서 디지털 미디어의 적용 방법과 특성에 관한 비교 연구

김동준,정재욱 대한건축학회 2004 대한건축학회논문집 Vol.20 No.11

The scope of this study is to understand the characteristic of architectural design process with the applications of digital technology. To verify the characteristics of digital application in architecture, the study have analyzed the design methodologies of two distinctive architects-Frank Ghery and Peter Eisenman utilized new design tools after the introduction of digital technology in early 1990's. The followings are summary of the study results : 1) Frank Ghery and Peter Eisenman made a new type of formation by using digital tools. By utilizing digital methods, two architects exuviated from conventional 2-dimensional planning to create 3-dimensional space rather engaging 3-dimensional thoughts to produce 3-dimensional structure and expel by 3-dimensional digital informations to update 2-dimensional drawings for the documentations. 2) The design process of Frank Ghery base on space-volume study with inner programs of block-model, and "Skin-In" system which works from the direction of exterior to interior. Finally, the process of work was conducted by the digital media called CATlA to digitize position of the shape appearance. 3) The digital design process of Peter Eisenman characterized by the first stage of design application and making new type of architectural paradigm. Eisenman emerge from the conventional idea and thoughts of design method to create new type of architectural form and space. Eisenman is confornted with elimination of human consciousness and conducting computer to organize itself to make unexpected patterns. Such a novel type of space is created by "phase-transformation" of digital process.

Down-staging with Localized Concurrent Chemoradiotherapy Can Identify Optimal Surgical Candidates in Hepatocellular Carcinoma with Portal Vein Tumor Thrombosis

( Jae Uk Chong ),( Dai Hoon Han ),( Gi Hong Choi ),( Jin Sub Choi ) 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1

Purpose: Locally advanced hepatocellular carcinoma (HCC) with portal vein tumor thrombosis is known to have a poor oncologic outcome. While the current standard of practice recommends only palliative treatments, many attempts with different modalities to increase survival have been undertaken. Primary goal of this study was to evaluate the oncologic outcome of surgical resection after down-staging with localized concurrent chemoradiotherapy (CCRT) followed by hepatic arterial infusion chemotherapy (HAIC) in locally advanced HCC with portal vein thrombosis. Methods: From 2005 to 2014, 354 patients with locally advanced HCC underwent localized CCRT followed by HAIC. Among them, 149 patients with portal vein tumor thrombosis were analyzed. In order for an intention-to-treat analysis, exclusion criteria included total bilirubin ≥2mg/dL, platelet count <100000, and ICG R15 >20%. During the same study period, eighteen patients with portal vein tumor thrombosis underwent surgical resection as the first treatment modality. Clinicopathologic characteristics and oncologic outcomes between the groups were compared. Results: With 51 patients in the exclusion criteria, 98 patients were finally analyzed in localized CCRT group. Among the 98 patients, 26 patients (26.5%) finally underwent curative resection. Clinicopathologic characteristic showed more frequent tumor thrombosis in the first order (81.6% vs. 22.2%, p<0.001) and bigger tumor size (9.0cm vs. 5.9cm, p=0.003) in localized CCRT group compared to the operation first group. Overall survival between the localized CCRT group and the operation first group, however, did not have a significant difference (median 13 months (95% CI: 10.10-15.90) vs. median 15 months (95% CI: 10.84-19.16), p=0.323). Further comparison of overall survival between the resection after localized CCRT group and the operation first group have shown significant difference (median 62 months (95% CI: 22.99-101.01) vs, median 15 months (95% CI: 10.84-19.16), p=0.006). Disease-free survival between these groups also revealed significant difference (median 32 months (95% CI: 3.47-60.54) vs, 3 months (95% CI: 2.03-3.97), p=0.002). Conclusion: In HCC with portal vein thrombosis, patients who received resection after CCRT showed better overall and disease-free survival compared to those who received operation first. Localized CCRT can be a tool in identifying optimal surgical candidates in HCC with portal vein tumor thrombus

Influencing factors in patient satisfaction of critical pathway for laparoscopic cholecystectomy

Jae Uk Chong,So Young Lee,Kyung Sik Kim 대한외과학회 2016 대한외과학회 학술대회 초록집 Vol.2016 No.5

Attenuated Role of Neoadjuvant Concurrent Chemor adiotherapyin Resectable Uncinate Process Pancreatic Cancer

( Jae Uk Chong ),( Ho Kyoung Hwang ),( Chang Moo Kang ),( Woo Jung Lee ) 대한간학회 2016 춘·추계 학술대회 (KASL) Vol.2016 No.1

Purpose: Uncinate process pancreatic cancer (UPC) is usually discovered in a relatively advanced stage. However, neoadjuvant concurrent chemoradiotherapy (CCRT) followed by pancreatoduodenectomy (PD) in UPC have shown comparable oncologic outcome with that of usual pancreatic head cancer (PHC). This study aimed to evaluate oncologic outcome of resectable UPC and determine whether neoadjuvant CCRT is truly necessary. Methods: A retrospective analysis of 204 patients with resected pancreatic head cancer at a single center from Jan. 2005 to Dec. 2014 was conducted. Clinicopathologic characteristics and oncologic outcomes of resectable UPC and resectable PHC were analyzed. Results: Among 41 patients diagnosed with resectable UPC, 14 (34.1%) patients received neoadjuvant CCRT, whereas 27 (65.9%) patients received operation first. Overall survival between surgery first and neoadjuvant CCRT did not have significant difference (p=0.341, mean survival 32 months vs. 18 months, respectively). During the same period, there were 90 patients diagnosed with resectable PHC. Survival outcomes between resectable UPC and resectable PHC were similar, with median survival of 26 and 20 months, respectively (p=0.427). Conclusion: UPC was recommended for neoadjuvant CCRT from a previous study. However, our analysis suggests that neoadjuvant CCRT may not have a significant role in resectable UPC and surgery should be recommended as a first option.

Attenuated Role of Neoadjuvant Concurrent Chemoradiotherapy in Resectable Uncinate Process Pancreatic Cancer

Jae-Uk Chong,Ho Kyoung Hwang,Chang Moo Kang,Woo Jung Lee 대한종양외과학회 2016 대한임상종양학회 학술대회지 Vol.2016 No.2

The role of prophylactic antibiotics on surgical site infection in elective laparoscopic cholecystectomy

Jae Uk Chong,Jin Hong Lim,Jee Ye Kim,Sung Hoon Kim,Kyung Sik Kim 한국간담췌외과학회 2015 한국간담췌외과학회지 Vol.19 No.4

Backgrounds/Aims: Although laparoscopic cholecystectomy is a common and widely accepted technique, the use of prophylactic antibiotics in elective laparoscopic cholecystectomy still remains controversial. The aim of this study is to determine whether prophylactic antibiotics could prevent surgical site infection after elective laparoscopic cholecystectomy and to identify any risk factors for surgical site infection. Methods: This study included 471 patients undergoing laparoscopic cholecystectomy between January 2009 and May 2012. Period 1 patients (279) received second generation cephalosporin 1 g intravenously after induction of anesthesia, and Period 2 patients (192) were not given prophylactic antibiotics. The characteristics and surgical site infections of the patients were compared and analyzed. Results: The overall rate of surgical site infection was 1.69% for the total of 471 patients. The incidence of surgical site infection was similar for the two Periods: 5 of 279 patients (1.79%) in Period 1, 3 of 192 patients (1.56%) in Period 2 (p=0.973). All of the patients with surgical site infections were well treated under conservative treatments without any sequelae. The preoperative albumin level (p=0.023) contributed to surgical site infection. Conclusions: Prophylactic antibiotics are not necessary for elective laparoscopic cholecystectomy but patients in poor nutritional state with low albumin level should consider prophylactic antibiotics.

Influencing factors on postoperative hospital stay after laparoscopic cholecystectomy

Jae Uk Chong,Jin Ho Lee,Young Chul Yoon,Kuk Hwan Kwon,Jai Young Cho,Say-Jun Kim,Jae Keun Kim,Sung Hoon Kim,Sae Byeol Choi,Kyung Sik Kim 한국간담췌외과학회 2016 한국간담췌외과학회지 Vol.20 No.1

Backgrounds/Aims: Laparoscopic cholecystectomy can reduce postoperative pain and recovery time. However, some patients experience prolonged postoperative hospital stay. We aimed to identify factors influencing the postoperative hospital stay after laparoscopic cholecystectomy. Methods: Patients (n=336) undergoing laparoscopic cholecystectomy for gallbladder pathology at 8 hospitals were enrolled and divided into 2 groups: 2 or less and more than 2 days postoperative stay. Perioperative factors and patient factors were retrospectively analyzed. Results: The patient population median age was 52 years, and consisted of 32 emergency and 304 elective operations. A univariate analysis of perioperative factors revealed significant differences in operation time (p<0.001), perioperative transfusion (p=0.006), emergency operation (p<0.001), acute inflammation (p<0.001), and surgical site infection (p=0.041). A univariate analysis of patient factors revealed significant differences in age (p<0.001), gender (p=0.036), diabetes mellitus (p=0.011), preoperative albumin level (p=0.024), smoking (p=0.010), and American Society of Anesthesiologists score (p=0.003). In a multivariate analysis, operation time (p<0.001), emergency operation (p<0.001), age (p=0.014), and smoking (p=0.022) were identified as independent factors influencing length of postoperative hospital stay. Conclusions: Operation time, emergency operation, patient age, and smoking influenced the postoperative hospital stay and should be the focus of efforts to reduce hospital stay after laparoscopic cholecystectomy.