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Infiltrating Epidural Angiolipoma Involving Lumbar Spine
Jeong-Han Kang(강정한),Hyeong-Seok Lee(이형석),Dae-Won Jung(정대원),Dong-Jun Ha(하동준),Jae-Yong Kwak(곽재용),Ui-Cheol Kim(김의철) 대한정형외과학회 2015 대한정형외과학회지 Vol.50 No.2
비교적 드문 침습형 경막 외 척추 혈관 지방종을 경험하였기에 보고하고자 한다. 척추 혈관 지방종은 주로 흉추부에 호발하며 침습형의 경우에도 요추부보다 흉추부에 잘 이환된다. 특히 요추부에 이환된 침습형 경막 외 척추 혈관 지방종은 극히 드물다. 증례는 침습형 척추 혈관 지방종이 제4 요추체에 이환된 심한 요통 및 하지방사통으로 내원한 52세 여자 환자로 수술적 치료로 제4-5 후궁 절제술 및 종양 절제술을 시행하였다. 환자는 수술적으로 치료하였으며 만족스러운 결과를 얻을 수 있었다. 척추 혈관 지방종은 수술적 치료로 좋은 결과를 얻을 수 있는 양성의 경과를 가진다. We report on an unusual case with infiltrating extradural spinal angiolipoma. Most spinal angiolipomas involve the thoracic spine and infiltrating ones are also located mainly at the thoracic levels rather than lumbar lesion. In particular, there are few cases of lumbar extradural infiltrating type spinal angiolipoma. One case is that of a 52-year-old female with infiltrating extradural spinal angiolipoma involving lumbar 4 (L4) vertebra, who underwent a L4?5 laminectomy and surgical removal of the tumor. We achieved satisfactory results with surgical treatment of the patient. Spinal angiolipoma has a benign course with a good postoperative outcome.
A Typology of Organizational Behavior
Kang Jeong-han(강정한),Han Sang Won(한상원) 서울대학교 사회발전연구소 2010 Journal of Asian Sociology Vol.39 No.2
Four modes of organizational behavior are proposed by crossing two behavioral dimensions adopted from organizational ecology (inertia vs. change) and neoinstitutionalism (normative vs. deviant). Those four modes are innovative (deviant change), reformative (normative change), conservative (normative inertia), and reactionary (deviant inertia) modes in the life-cycle of organizational behavior. Also identified are two distributional characteristics underlying each behavioral dimension: low risk vs. high risk underlying inertia vs. change, and certainty vs. uncertainty underlying normative vs. deviant. Through the integration of inertia-conformity and risk-uncertainty dimensions, hypotheses are generated on how transition to the next mode can be either promoted or hindered by sociopolitical resources at the organizational level and by intervention of the state and the civil society at the societal level. The typology and hypotheses outlined in this paper aim to further theoretical articulation and empirical tests on the evolutionary dynamics of organizational forms and institutions in the market.
새로운 위상전이 병렬입력/직렬출력 모듈화를 적용한 듀얼 컨버터
강정일(Jeong-il Kang),노정욱(Chung-wook Roh),한상규(Sang-Kyoo Han),윤명중(Myung-Joong Youn) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
A new phase shift PWM parallel-input/series-output modularized dual converter is proposed in this paper, This converter is operated with a fixed duty ratio and its output voltage is regulated by phase shift between each module, Since the operating duty ratio of each module is fixed, it is sufficient to implement a simple open loop drive circuitry for each module and the cost of total system can be much reduced, The operation of the converter is analyzed in this paper and verified by computer simulation
강정한 ( Jeong Han Kang ),양승현 ( Seung Hyeon Yang ),임극필 ( Kuk Pil Lim ),김휘택 ( Hui Taek Kim ) 대한골절학회 2013 대한골절학회지 Vol.26 No.4
목적: 상완골 원위부 내과 골절에 대한 치료 결과를 고찰하였다. 대상 및 방법: 소아 상완골 내과 골절에 대해 부산대학교병원 정형외과에서 치료 후 2013년 현재 상완골 원위부 성장이 완료된 7예를 대상으로 하였다. 남자가 3예, 여자가 4예였으며 수상 당시의 나이는 2세에서 10세로 평균 4.6세였다. 수상 후 치료까지의 기간은 최소 1일에서 최고 6개월이었으며, 4예에서 수상 후 17일, 2개월, 2개월, 6개월 때 수술적 치료를 받았다. 모든 골절이 Milch 1형이었으며, 5예에서 Kilfoyle 3형, 2예에서 2형이었다. Mayo 주관절 실행 점수와 운반각의 변화에 따라 최종 결과를 판정하였다. 결과: 최우수 3예, 우수 3예, 보통 1예의 결과를 보였다. 모든 예에서 주관절 동통은 없었으며, 진단이 지연된 4예 중 1예에서 내반 변형으로 교정 절골술을 받았고 이들 모두 운동장애를 보였다. 치료가 지연되지 않은 3예에서는 정상 운동 범위를 보였다. 결론: 소아 상완골 내과는 연골로 구성되어 골절 시 단순 엑스선만으로 정확한 진단이 어렵다. 엑스선상 골절선이 보이지 않더라도 주관절 내측 부위의 부종과 압통 등을 보일 경우 자기공명영상 등의 추가 검사가 필요할 수 있다. 정확한 진단과 함께 조기 치료하면 우수한 결과를 얻을 수 있으므로 정확한 진단이 무엇보다 중요하다. Purpose: We evaluated outcomes of treatment in medial condyle fracture of the distal humerus in children. Materials and Methods: Seven patients (4 females, 3 males) who were treated at the Pusan National University Hospital and followed-up until skeletal maturity after treatment were included. The average age at the time of fracture was 4.6 years (range, 2 to 10 years). Treatment was performed from 1 day to 6 months after the fracture: 4 patients underwent a surgical treatment for 17 days, 2 months, 2 months and 6 months after fracture, respectively. All fractures were Milch type 1. Five patients had Kilfoyle type 3, and two patients had type 2 fractures. Final outcomes were evaluated by the Mayo elbow performance score and carrying angle. Results: There were 3 excellent, 3 good and 1 fair result at the final follow-up. There was no elbow pain in any of the patients. One of the four patients who underwent a late surgical treatment received corrective osteotomy due to cubitus varus. All four patients had a limitation of elbow motion. The other three patients who had accurate diagnosis and treatment had a full range of motion. Conclusion: Diagnosis of medial condyle fracture of the distal humerus based on plain radiograph is difficult in children due to its cartilaginous structures. When a patient shows pain, tenderness and swelling on the medial side of the elbow, an additional examination with magnetic resonance imaging may be required even if no fracture line is found in the radiograph. Accurate diagnosis and early treatment is important for good results.
강정난 ( Jeong Nan Kang ),김도형 ( Do Hyeong Kim ),설정은 ( Jung Eun Seol ),정소영 ( So Young Jung ),왕한영 ( Han Young Wang ),김효진 ( Hyojin Kim ) 대한피부과학회 2017 대한피부과학회지 Vol.55 No.2
Background: A number of anticancer agents are known to induce many adverse reactions in the skin. Related cutaneous adverse drug reactions influence the morbidity, mortality, and anti-cancer regimen of the patients. A multidisciplinary approach to cancer management has been emphasized. Objective: To identify the causative anticancer agents and frequency of adverse reactions in the skin. Methods: We retrospectively reviewed the medical records of patients who consulted at the Dermatology Department of Busan Paik Hospital and Haeundae Paik Hospital from January 2013 to February 2015. Results: A total of 140 patients were enrolled. Among the 45 patients treated with antimetabolite analogs (30 cytarabine, 7 gemcitabine, 3 methotrexate, 2 fludarabine, 2 doxifluridine, and 1 decitabine), exanthematous drug eruption (49.1%) was the most common reaction, followed by hand-foot syndrome (28.3%). Among the 35 patients treated with fluorouracil (22 5-fluorouracil and 13 capecitabine), hand-foot syndrome (47.2%) was the most common, followed by acneiform eruption (25.0%). Among the 24 patients treated with epidermal grow factor receptor inhibitors (10 erlotinib, 10 cetuximab, and 4 gefitinib), acneiform eruption (54.8%) was the most common, followed by xerosis (19.4%). Among the 11 patients treated with anthracyclines (9 doxorubicin, 1 daunorubicin, and 1 idarubicin), acneiform eruption (45.5%) was the most common, followed by hand-foot syndrome (36.4%). Among the 7 patients treated with taxanes (4 docetaxel and 3 paclitaxel), hand-foot syndrome (42.8%) was the most common. Among the 6 patients treated with angiogenesis-inducing inhibitors (3 sorafenib, 2 pazopanib, and 1 sunitinib), hand-foot skin reaction (66.7%) was the most common. Only 2 patients (1.4%) changed treatments due to intolerable skin reactions. Conclusion: Clinicians should be aware of the various skin reactions of anticancer agents and predict their clinical course effectively. (Korean J Dermatol 2017;55(2):89∼95)