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극단 저체중 신생아에서의 동맥관 개존증 결찰술을 위한 진정맥 마취 경험 2례
최영균,고명진,이상은,조광래,김영환,임세훈,이정한,이근무,정순호,김영재,신치만 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-
Running title: Cases of anesthesia for extremely low birth weight infant. Extremely low birth weight infants (birth weight < 1000 g) are prone to various morbidities such as respiratory distress syndrome, intraventricular hemorrhage, periventricular leukomalacia, patent ductus arteriosus, necrotizing enterocolitis and retinopathy. To accomplish successful anesthetic management, many precautions must be continuously taken during the operation. First, inspired oxygen concentration should be adjusted to avoid oxygen toxicity. Second, body temperature must be maintained adequately. Third, hemodynamic parameters should be kept stable. We report 2 cases of successful anesthetic management for extremely low birth weight infant who underwent ligation of patent ductus arteriosus at the neonatal intensive care unit.
동일한 혈관 내에 발생한 이식형 약제 주입기 카테터의 위치이상
오대석,김영재,김명훈,조광래,임세훈,이정한,이근무,정순호,신치만 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-
저자들은 56세 여성 환자의 왼쪽 쇄골 하 정맥에 시행한 이식형 약제주입기 카테터의 삽입 후 발생한 비정상 위치에 대한 증례를 보고하고자 한다. 카테터의 끝은 환자의 늘 어진 가슴, 체위, 신체의 움직임, 카테터의 유동성 등의 영향으로 천자된 정맥 내에서 견인되고 뒤쪽으로 이동하였다. 환자는 어떠한 증상도 호소하지 않았지만 비정상 위치의 카테터는 심각한 합병증을 유발할 수 있기 때문에 제거되었다. 따라서 시술자는 약제주입기 삽입 전에 환자의 신체 상태와 단순 흉부 촬영상을 확인하고 카테터의 비정상 위치가 발생할 수 있는 위험 징후를 알아차려야 하겠다.
복강경하 대장절제술을 시행 받는 환자에서 라모세트론과 온단세트론외 술 후 오심 및 구토 예방 효과 비교
김효중;어전영;어근무;어정한;엄세훈;조광래;김명훈 인제대학교 2011 仁濟醫學 Vol.32 No.-
Objectives : We evaluated the efficacy of ramosetron and ondansetron for preventing postoperative nausea and vomiting (PONV) in laparoscopic colectomy. Methods and Materials : Eighty patients who received laparoscopic colectomy were randomly divided into two groups: R group (ramosetron 0.1mg PO) and O group (ondansetron 4mg twice IV). Injection or oral medication was administered before the induction of anesthesia in each group. Injection was administered at the end of surgery in O group. General anesthesia was induced using propofol and rocuronium, and maintained with sevoflurane, remifentanil and air (FiO2 0.5), We investigated the incidences of PONV in each group by the Rhodes index of nausea, vomiting and retching (RINVR) at postoperative 6 and 24 hours. Results : The incidence of PONV was not different between group at each time points after surgery (at postoperative 6 hours: 20% in group R, 17.5% in group 0, at postoperative 24 hours; 12.5% in group R, 7.5% in group 0). There was no difference in the severity of PONV, satisfaction, rescue drug usage. Conclusion : Prophylactic therapy with ramosetron is as effective as conventional prophylactic therapy with ondansetron for preventing PONV in general anesthesia for laparoscopic colectomy.
Kim, Se-Hun;Kim, Hyun-Tae;Cheong, Soon-Ho;Lee, Kun-Moo;Lee, Jeong-Han;Lim, Se-Hun;Cho, Kwang-Rae;Kim, Myoung-Hun;Kim, Se-Hun;Kim, Hyun-Tae;Cheong, Soon-Ho;Lee, Kun-Moo;Lee, Jeong-Han;Lim, Se-Hun;Cho, 인제대학교 2011 仁濟醫學 Vol.32 No.-
목적: 이중분광계수(Bispectral Index Score)는 중환자실에서 진정의 정도를 가하는 도구로 사용되고있다. 저자들은 뇌손상환자에서 진정척도를 사용하여 의식의 정도를 측정할 때 말이나 통중의 자극으로 인해 이중분광지수가 변할수 있다고 가정하였다. 방법: 42명의 뇌손상환자에서 진정척도를 사용하여 자극을 주기 5분전과 5분후에 이중편광계수를 측정하여 연관성을 확인하였다. 결과: 이중편광계수는 측정시간에 따라 차이가 없었다. 평균 이중편광계수는 Glasgow Coma Score (GCS), Richmond Agitation-Sedation Scale (RASS), Reaction Level Scale(RLS)와 연관성이 있었다. 결론: 진정척도와 이중편광지수와의 연관성은 자국의 유무에 의해 영향을 받지 않는 것으로 보인다.
( Myoung Jin Ko ),( Jeong Han Lee ),( Soon Ho Cheong ),( Chee Mahn Shin ),( Young Jae Kim ),( Young Kyun Choe ),( Kun Moo Lee ),( Se Hun Lim ),( Young Hwan Kim ),( Kwang Rae Cho ),( Sang Eun Lee ) 대한마취과학회 2010 Korean Journal of Anesthesiology Vol.58 No.4
Background: This study was done to evaluate the effect on pain relief when acetaminophen was added to lidocaine for intravenous regional anesthesia (IVRA). Methods: Sixty patients undergoing hand or forearm surgery received IVRA were assigned to three groups: Group C received 0.5% lidocaine diluted with 0.9% normal saline to a total volume of 40 ml (n=20), Group P received 0.5% lidocaine diluted with intravenous acetaminophen 300 mg to a total volume of 40 ml (n=20) and Group K received 0.5% lidocaine diluted with 0.9% normal saline plus ketorolac 10 mg made up to a total volume of 40 ml (n=20). Sensory block onset time, tourniquet pain onset time, which was defined as the time from tourniquet application to fentanyl administration for relieving tourniquet pain and amount of analgesic consumption during surgery were recorded. Following deflation of tourniquet sensory recovery time, postoperative pain and quantity of analgesic uses in post-anesthesia care unit were assessed. Results: Sensory block onset time was shorter in Group P compared to Group C (P<0.05). Tourniquet pain onset time was delayed in Group P when compared with group C (P<0.05). Postoperative pain and analgesic consumption were reduced in Group P and Group K compared to Group C (P<0.001). Conclusions: The addition of acetaminophen to lidocaine for IVRA shortens the onset time of sensory block and delays tourniquet pain onset time, but not with ketorolac. Both acetaminophen and ketorolac reduce postoperative pain and analgesic consumption. (Korean J Anesthesiol 2010; 58: 357-361)
Improvement of Recloser-Fuse Operations and Coordination in a Power Distribution System With SFCL
Myoung-Hoo Kim,Sung-Hun Lim,Jae-Chul Kim IEEE 2011 IEEE transactions on applied superconductivity Vol.21 No.3
<P>In this paper, we describes how to coordinate between recloser and fuse in power distribution system with superconducting fault current limiters (SFCL). The recloser and fuses are the main overcurrent protective devices in power distribution system. Universally, to protect against permanent faults, fuses are installed on overhead feeder laterals and the reclosers as a backup protection against temporary faults remove many unnecessary outages. Here, the recloser is set to trip using TCC curve for a temporary fault before any of the fuses can melt. If the fault is a permanent fault, the fuse has to melt just before the last delay trip of the recloser. However, the application of a resistive SFCL in power distribution system affects the recloser-fuse operation and coordination as decreased fault currents. In case that when a permanent fault occurs, the recloser could be locked-out after the last delay trip before the fuses operate. Therefore, to solve these cases, we performed experiments which are the recloser-fuse operation and coordination in the modeled power distribution system with the SFCL. Based on the experimental verification, we improved to coordinate the recloser-fuse in power distribution system with SFCL.</P>
임명성(Myoung-Seong Lim),정진형(Jin-Hyoung Jeong),이상식(Sang-Sik Lee),장지훈(Jee-Hun Jang) 한국정보전자통신기술학회 2021 한국정보전자통신기술학회논문지 Vol.14 No.1
본 연구는 자전거 운동 시 소비되는 에너지량 계산을 위한 알고리즘을 개발하고자 하는 목적으로 수행되었다. 대학에 재학 중인 60명(남자 30명, 여자 30명)을 대상으로 자전거 운동 시 10초 간격으로 배출하는 호흡가스를 분석하고 에너지소비량을 측정하였으며, 시판 유선속도계로 측정된 결과 및 선행연구에서의 추론식과 비교 검증하였다. 남자의 자전거운동 시 시간에 따른 소비되는 에너지량을 추정하는 알고리즘은 ‘에너지소비량(㎉)=5.048×(시간(분))–2.258(r2=0.998)’로 계산되었다. 여자의 자전거 운동 중 시간에 따른 에너지소비량 추정 회귀식은 ‘에너지소비량(㎉)=4.466×(시간(분))–1.605(r2=.999)’로 계산되었다. 남자의 자전거운동 시 시간과 속도에 따른 에너지소비량 추정 회귀식은 ‘에너지소비량(㎉)=(0.05×속도(kph))×(4.750×시간(분)+0.091)’로 계산되었다. 여자의 자전거 운동 시 시간과 속도에 따른 소비되는 에너지량 추정 회귀식은 속도 20kph 이하 조건에서는 ‘에너지소비량(㎉)=(0.05×속도(kph))×(4.151×시간(분)-0.736)’으로 계산되었고, 속도 20kph 초과 조건에서는 ‘에너지소비량(㎉)=(0.04×속도(kph))×(4.151×시간(분)-0.736)’으로 계산되었다. 결론적으로 자전거 운동 시 소비되는 에너지량을 계산하기 위한 알고리즘개발에는 시간 및 속도에 따른 에너지소비량 추론식 적용이 적절한 것으로 제언된다. The purpose of this study was to develop the mathematic algorithm for energy expenditure calculation during cycling as a part of the development of a higher value-added cycle. Participants were 60 university students (male 30, female 30). Energy expenditure was measured with breathing gas at 10 sec intervals by gas analyzer connected with stationary cycle ergometer. Values presented by commercial speedometer and preceding researches were used for verification of actual measurement values in this study. In conclusion, the mathematic algorithms for energy expenditure calculation during cycling were as follows. For male, energy expenditure(㎉)=5.048×cycling time(min)–2.258, energy expenditure(㎉)=(0.05×cycling velocity(kph))×(4.750×cycling time(min)+0.091). For female, energy expenditure(㎉)=4.466×cycling time(min)–1.605, energy expenditure(㎉)(cycling velocity≤20kph)=(0.05×cycling velocity(kph))×(4.151× cycling time(min)-0.736), energy expenditure(㎉)(cycling velocity>20kph)=(0.04×cycling velocity(kph)) ×(4.151×cycling time(min) -0.736). And it is suggested that the developed algorithm with cycling time and velocity should be applied for the development of a higher value-added cycle.