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심한 증식성 루푸스 신염과 혈전성 혈소판 감소성 자반증이 병발한 남성 환자에서 cyclophosphamide 치료 경험
정혜원 ( Hae Won Jung ),신준암 ( Jun Am Shin ),이유지 ( Yu Ji Lee ),강나리 ( Na Ree Kang ),권기영 ( Ghee Young Kwon ),한봉준 ( Bong Jun Han ),김윤구 ( Yoon Goo Kim ) 대한내과학회 2006 대한내과학회지 Vol.71 No.2
Thrombotic thrombocytopenic purpura is a rare but fatal complication of systemic lupus erythematosus. The diagnosis of thrombotic thrombocytopenic purpura as a syndrome distinct from systemic lupus erythematosus may be challenging particularly when thrombotic thrombocytopenic purpura is presented concomitantly with systemic lupus erythematosus. Early diagnosis and aggressive treatment including plasmapheresis would be required. However, recent reports have suggested that the use of cyclophosphamide may have a role. We describe a patient with systemic lupus erythematosus who was first presented with severe thrombotic thrombocytopenic purpura. Diagnosis was based on typical clinical features of thrombotic thrombocytopenic purpura and laboratory findings of active lupus nephritis. Renal biopsy also confirmed the coexistence of thrombotic thrombocytopenic purpura and diffuse proliferative lupus nephritis. Although prompt extensive plasmapheresis and high dose steroid therapy were performed, oliguric renal failure and thrombocytopenia persisted. After addition of cyclophosphamide to the treatment with plasmapheresis and steroid, clinical manifestations of thrombotic thrombocytopenic purpura and lupus nephritis were markedly improved. (Korean J Med 71:214-218, 2006)
급성 췌장염 환자에서 복강동맥 협착과 동반하여 발생한 비장경색의
김진건 ( Jin Gun Kim ),임동혁 ( Dong Hyuck Lim ),한봉준 ( Bong Jun Han ),표승일 ( Seung Il Pyo ),이숭환 ( Soong Hwan Lee ),김인숙 ( In Sook Kim ),전의용 ( Eui Yong Jeon ) 대한내과학회 2006 대한내과학회지 Vol.71 No.2
Prevalence of splenic infarction developed during acute pancreatitis is extremely rare. However, we recently experienced a case of 42-year-old woman who developed splenic infarction during acute alcoholic pancreatitis. There were sustained subjective symptoms and no resolution of image despite of conservative management, so we performed angiography to confirm whether vascular lesion existed or not. We found the significant celiac artery stenosis due to compression by median arcuate ligament and no visible thrombus. We report an unusual case of splenic infarction developed during acute recurrent pancreatitis possibly related with celiac artery stenosis.(Korean J Med 71:198-202, 2006)
풍력 열발생 유압 시스템을 위한 새로운 유량제어밸브에 관한 연구
최세령(Sae Ryung Choi),이일영(Ill Yeong Lee),한봉준(Bong Jun Han) 유공압건설기계학회 2017 드라이브·컨트롤 Vol.14 No.1
A wind power heat generation system that converts wind power directly to heat instead of electric power is considered in this study. The system consists of a wind turbine part and a heat generation part. The heat generation part is materialized by a hydraulic system including a hydraulic pump, a flow control valve, a hydraulic oil tank, etc. The flow control valve primarily converts hydraulic energy generated in the pump to heat energy. It should have a function of overspeed protection under excessive wind speeds. In this study, a novel flow control valve design is proposed for excellent flow control characteristics under excessive pump driving torque (excessive wind speed). The performance of the suggested valve is analyzed using numerical simulation.
복막투석 환자에서 발생한 Burkholderia cepacia 복막염
강형민 ( Hyung Min Kang ),박재은 ( Jae Eun Park ),이형돈 ( Hyoung Don Lee ),한봉준 ( Bong Jun Han ),김수현 ( Su Hyun Kim ),신석호 ( Suk Ho Shin ),윤수진 ( Su Jin Yoon ) 대한내과학회 2006 대한내과학회지 Vol.71 No.2
Burkholderia cepacia is an important opportunistic pathogen in immunocompromised and nosocomial patients, but this bacterial infection is rare in Korea. We report a case of Burkholderia cepacia peritonitis in a patient on CAPD. A 69-year-old male on CAPD for 5 years was presented with turbid peritoneal dialysate, diffuse abdominal pain and diarrhea. He was treated initially with intraperitoneal cefazolin and ceftazidime, and then intraperitoneal meropenem and oral TMP/SMX. His symptoms had improved with antibiotic treatment, but white blood cell counts of dialysate increased, instead. Burkholderia cepacia was isoloated from peritoneal fluid culture. The patient refused catheter removal in spite of our recommendation. He died of suddenly developed acute myocardial infarction and upper gastrointestinal bleeding. Catether tip culture also revealed Burkholderia cepacia.(Korean J Med 71:219-223, 2006)