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담석증, 급성 담낭염, 담도염 환자의 Nitrate/Nitrite (NOx)의 측정치와 질병의 중등도와의 관계
최경호(Kyong-Ho Choi),김해성(Hae Seung Kim),최연승(Yun-Seung Choi),조응호(Eung Ho Cho),안승익(Seung-Ik Ahn),이건영(Keon-Young Lee),홍기천(Kee-Chun Hong),최선근(Sun Keun Choi),허윤석(Yoon Seok Hur),김세중(Sei Joong Kim),우제홍(Ze Hong 대한외과학회 2004 Annals of Surgical Treatment and Research(ASRT) Vol.67 No.1
Propafenone 음독 후 발생한 치명적인 부정맥 1례 - 증례 보고-
경연영,최경호,Kyong, Yeon-Young,Choi, Kyoung-Ho 대한임상독성학회 2008 대한임상독성학회지 Vol.6 No.2
A 36-year-old female was transferred to our emergency medical center with decreased mental status after a 6.0 g propafenone overdose because of domestic disturbance. She had no previous history of epilepsy, diabetes mellitus, hypertension or psychiatric illness. Before presenting to our center, gastrointestinal decontamination, charcoal administration, and endotracheal intubation due to bradycardia and generalized seizure had been performed. Soon after hospital arrival, at 5 h after ingestion, she collapsed into shock and fatal arrhythmia. We successfully resuscitated the patient with amiodarone, sodium bicarbonate, a large volume of normal saline, calcium, and ventilator care. At 23 h after ingestion, she was fully recovered and had no subjective signs or symptoms. To our knowledge, this is the first case report of intentional propafenone overdose in Korea, which we report with reviews of the previous literature.
김대희,최세민,오영민,오주석,경연영,최경호,Kim, Dae-Hee,Choe, Se-Min,Oh, Young-Min,Oh, Joo-Suk,Kyong, Yeon-Young,Choi, Kyoung-Ho 대한임상독성학회 2009 대한임상독성학회지 Vol.7 No.2
Purpose: Antivenin is a standard therapy in snakebite victims. While the required antivenin dose can be easily estimated, based on the initial symptoms, this strategy may be unsuccessful if the initial symptoms progressively worsen. The purpose of this study was to identify the progression rate of the initial symptoms following snakebite and its associated factors. Methods: The medical records of 44 patients treated for snakebite from give the actual dates of the study period were retrospectively examined. Thirty-two of these patients were enrolled. Demographic data, local wound grade and local effect score at initial presentation (G-0 and LES-0, respectively) and 12 hours after admission (G-12 and LES-12, respectively) were reviewed, along with laboratory data. Results: The 32 patients had an average age of $54.0{\pm}14.5$ years and were predominantly male (n=26) and presented mainly during summer. Compared to G-0 and LES-0, re-evaluated G-12 and LES-12 were significantly increased despite initial administration of proper antivenin dosage (p=0.001 and p=0.000, respectively). Total amounts of antivenin correlated with LES-12 (correlation co-efficiency 0.558, p<0.05). However, factors associated with symptom progression were not revealed. Conclusion: Initial snakebite symptoms might progressively worsen within hours despite acceptable initial antivenin therapy. Therefore, re-evaluation within several hours must be considered if when the initial snakebite symptoms are minimal or mild.
김성백(Seong-Baek Kim),이승용(Seung-Yong Lee),최지훈(Ji-Hun Choi),최경호(Kyong-Ho Choi),장병태(Byung-Tae Jang) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.1C
관성항법 시스템은 항체의 위치, 속도 및 자세정보를 거의 연속적으로 제공할수 있는 장점이 있다. 그러나 시간의 경과함에 따라 초기오차가 누적되어 발산하게 되는 단점이 있다. 이로 인하여 실제 적용시에는 매우 고가의 정밀한 자이로와 가속도계가 필요하다. 반면 DGPS는 오차의 누적이나 증가없이 장기간 동안 안정적으로 위치정보를 제공하지만 낮은 데이터 전송률과 도심지역과 같은 곳에서는 신호의 차단이나 전파방해에 영향을 받는 단점이 있다. 이와 같이 상호보완적인 DGPS와 INS 정보를 통합하여 고 정밀의 속도, 위치 및 자세데이터를 제공할 수 있다. 본 논문은 저가의 IMU의 노이즈와 바이어스를 웨이브렛의 soft thresholding 기법을 이용하여 잡음을 제거하여 성능향상을 시도하였다. 통합알고리즘의 필터는 15차로 구현하였으며 관측치는 DGPS의 위치정보를 이용하였다.
TMSCl / NaI 를 이용한 이중고리 이소옥사졸 유도체의 환원분해반응에 의한 3,4- 치환된 이소옥사졸의 합성
김형진,이영주,최경호 한국공업화학회 1998 응용화학 Vol.2 No.1
Synthetic methodology for 3,4-disubstituted isoxazole derivatives from the reductive cleavages of 4,5-dihydro-7H-pyrano[3,4-c]isoxazoles 1 or 4H,6H-furo[3,4-C]isoxazoles 5 is described. Pyrano[3,4-c]isoxazole 1, upon treatment with TMSCL/NaI in acetonitrile, undergoes selective C-O bond cleavage to furnish a 3,4-disubstituted isoxazole (2, 3, 4) in high yield without damaging the isoxazole ring. Likewise, the treatment of furo[3,4-c]isoxazoles 5 with TMSCl/Nal in acetonitrile results in the formation of a reduced iodide 7 and a hydroxy iodide 8.