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Epoxy Resin/ESO(Epoxidized Soybean Oil)의 혼합 함량에 따른 열적, 기계적, 전기적 절연파괴 특성 연구
김규만(Gyu- Man Kim),김수환(Soo-Hwan Kim),김정철(Jeong-Cheol Kim),김회창(Hoe-Chang Kim),문명진(Myeong-Jin Moon),배승열(Seung-Yeol Bae),변주희(Joo-Hee Byun),신규철(Gyu-Cheol Shin),이형원(Hyoung-Won Lee),전완수(Wan-Su Jeon),박재준(Jae- 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7
체외순환이 갑상선호르몬 농도에 미치는 영향에 관한 연구
김규만,전상협,김종원,Kim, Gyu-Man,Jeon, Sang-Hyeop,Kim, Jong-Won 대한흉부심장혈관외과학회 1994 Journal of Chest Surgery (J Chest Surg) Vol.27 No.7
The hemodynamic effects of thyroid hormone are well established, and this hormone affects myocardial contractility, heart rate, and myocardial oxygen consumption. But the role of cardiopulmonary bypass on the thyroid function is not yet fully understood. We have studied twelve patients [male and female patients were equal in number] who were performed open heart surgery under cardiopulmonary bypass. The results are followed. 1] The serum level of T3 began to fall after cardiopulmonary bypass and sustained significantly till 24 hours after operation[p<0.05] 2] The concentrations of T4, Free T4, and TSH were slightly decreased after cardiopulmonary bypass but was maintained within normal range. 3] This above findings are similar to the "sick sinus syndrome" that is seen in severely ill patient. 4] We can propose that T3 would be effective in postoperative low cardiac output syndrome. syndrome.
하지동맥 폐쇄환자에서 실시한 Extra-anatomic bypass술의 임상적 고찰
김규만,김종원,Kim, Gyu-Man,Kim, Jong-Won 대한흉부심장혈관외과학회 1993 Journal of Chest Surgery (J Chest Surg) Vol.26 No.12
Extra-anatomic bypass was proposed by Freeman in 1952 and has been used for patient with lower extremity arterial occlusion who had very high operative risk, especially elderly or severly illed patient.We had performed 14 cases of extra-anatomic bypasses from Jan. 1991 till July 1993 and having been following up them. Their results were summarized as follow. Among total 14 patients, 13 was male. Their mean age was 64.8 years old, ranged from 48 to 80. The most common complaint was pain on lower limb and they visited hospital 6.1 months in average after onset of symptom. Frequently, they were associated with systemic diseases such as generalized atherosclersis, hypertension, diabetes mellius, etc. Axillary artery was used as donor artery in 8 cases and crossover femoro-femoral or femoro-popliteal bypass was performed in 6 cases. Postoperative complications were notedd in 8 cases so their morbidity rate was 42.8%. Except for two contraindicated cases, one or more anticoagulants were used routinely . Among them, combined use of aspirin and persantine was most commonly applied.After bypass graft, nine cases were occluded beteween 10 and 53 months. So their average duration of freedom from reocclusion was 35.7 months and 3-year patency rate was 63%.