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신예진(Yejin Shin),정기태(Ki Tae Jung) 조선대학교 의학연구원 2023 The Medical Journal of Chosun University Vol.48 No.2
A 60-year-old male patient underwent liver transplantation surgery due to autoimmune cirrhosis and hepatocellular carcinoma. Placing a pulmonary arterial catheter (PAC) for hemodynamic monitoring was challenging despite using ultrasound and multiple adjustments. The PAC anomalously lodged in the inferior vena cava despite corrective attempts, influencing the surgical approach. To avoid possible complications, it was decided to remove the PAC. No subsequent complications related to PAC misplacement were observed, and the patient recovered post-surgery without incident. This case underscores the importance of following the precision in PAC insertion procedures, such as waveform analysis.
척추 통증에 대한 비수술 중재적 치료의 진단적 그리고 치료적 가치
최우영(Woo Young Choi),정기태(Ki Tae Jung),박수영(Su Yeong Park),임경준(Kyung Joon Lim) 조선대학교 의학연구원 2019 The Medical Journal of Chosun University Vol.44 No.1
Spinal pain is a symptom caused by changes of the vertebral column or its adnexa. Sometimes spinal pain cannot be treated, especially in case of multiple pain lesions, because of its difficulty in evaluating original causes which contributes to the symptoms. Thus, the precise localization of the lesion causing symptoms is very important for targeted treatment. However, the diagnosis based on limited screening test including physical evaluation and radiological finding may lead to misdiagnosis of the actual lesion causing symptoms, failure of treatment, and unnecessary surgery. From this point of view, nonsurgical interventional for spinal pain can be helpful to diagnose the precise cause of spinal pain. We report several cases that nonsurgical interventional therapy which diagnosed the precise lesion that cause the spinal pain and treated successfully with nonsurgical interventional therapy for diagnostic purposes with therapeutic purpose.
Etomidate가 임신 백서 자궁 평활근의 수축에 미치는 영향
정종달 ( Chong Dal Chung ),안태훈 ( Tae Hun An ),정기태 ( Ki Tae Jung ),이태헌 ( Tae Heon Lee ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.57 No.1
Background: It has been reported that etomidate has the relaxant effects on vascular, tracheal, and non-pregnant uterine smooth muscle in vitro. The purpose of this study was to investigate the relaxant effects of etomidate on the contraction of the pregnant rat uterine smooth muscle. Methods: Uterine muscle tissues were obtained from pregnant rats (n=15). The uterine segments were mounted in organ baths filled with Krebs solution. After oxytocin-induced contractile activity had been established, etomidate in incremental concentrations (10(-7) to 10(-3) M) was added cumulatively to the bath, each administered 20 min apart, and resultant changes in contractile activity were continuously recorded. EC5 (effective concentration of 5% reduction), EC25, EC50, EC75, and EC95 on active tension were calculated using a probit model. Results: Etomidate (10-(7) to 10(-3) M) induced dose-dependent decreases in amplitude and frequency of uterine contraction. The EC50 of etomidate on active tension were 5.91×10(-5) M. Conclusions: These results demonstrate that etomidate had inhibitory effects on pregnant rat uterine muscle at supraclinical concentration (5.91×10(-5) M). (Korean J Anesthesiol 2009; 57: 84~7)
집중운용 환경지원을 위한 지능형 통신시설 원격제어시스템 구축
이정호(Jeong-ho Lee),정현섭(Hyun-sum Jung),김동일(Dong-il Kim),송순용(Soon-yong Song),정기태(Ki-tae Jeong) 한국정보과학회 2008 한국정보과학회 학술발표논문집 Vol.35 No.2
본 논문에서는 특정 기종의 통신시설에 대한 전문가의 해당 시설의 운영관리 지식과 경험을 시스템화하여 현재의 운용자 기량에 의존하는 네트워크 운영관리 업무를 지능화/자동화하는 방법을 제안한다. 통신시설의 종류는 증가하고, 그 분포는 광역화되고 있으며, 운용관리 인원은 감소하고 있는 것이 네트워크 운용환경의 변화 추세이다. 이러한 환경변화에도 불구하고 네트워크를 안정적으로 유지 관리하기 위해서는 소수의 운용인력이 특성이 다른 여러 종류의 통신시설을 원격으로 효율적으로 관리할 수 있는 방안이 반드시 마련되어야 한다. 이를 위하여 본 논문에서는 통신시설을 운용 관리하는 전문가의 지식과 경험을 표준화하여 Standard Operating Procedure (SOP)로 작성하고, 이를 운용자의 업무에 직접적으로 활용하여 통신시설 운용관리 방안을 제안한다.