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김응수,정자춘,이철동,유영욱,Kim, Eung-Su,Jeong, Ja-Chun,Lee, Cheol-Dong,Yu, Yeong-Uk 한국전자통신연구원 1986 전자통신 Vol.8 No.3
Currently, CIF is used widely as a common data base to represent IC layouts. The CIF2PG program is developed using C language to obtain electromask or mann 3000 PG file from the CIF input file. By obtaining the PG data, which can realize the actual mask layout, the construction of IC Design Automation System became possible using a general purpose computer.
활로 4징증 수술 전후 압력 측정치가 예후에 미치는 영향에 관한 연구
김응수,김근호,Kim, Eung-Su,Kim, Geun-Ho 대한흉부심장혈관외과학회 1987 Journal of Chest Surgery (J Chest Surg) Vol.20 No.1
Sixty-eight consecutive patients have been subjected to total corrective surgery of tetralogy of Fallot at the Hanyang University Hospital between August 1975 and December 1984. Of these, the pressure of chambers and great arteries were measured, before and immediately following an operation in 39 of the survived group and 11 of the expired group. The values of postoperative peak pressure were correlated with the outcome of the operation. The result are as followings; 1] Compared to the average peak pressure of right atrium in the survived group, 14.46*4.16 mmHg, that in the expired group, 19.36*8.19 mmHg, was significantly lower, 2] Compared to the average systolic pressure of right ventricle in the survived group, 56.72z16.37 mmHg, that in the expired group, 70.45*15.26 mmHg, was significantly lower. 3] Compared to the average systolic pressure of pulmonary artery in the survived group, 33.26*12.95 mmHg, that in the expired group, 37.55*11.63 mmHg, was higher. But the difference was not significant. 4] Compared to the average peak pressure of left atrium in the survived group, 17.41*6.90 mmHg, that in the expired group, 31.18*12.47 mmHg, was significantly higher. 5] Compared to the average systolic pressure of left ventricle in the survived group, 103.82~12.83 mmHg, that in the expired group, 90.55*20.02 mmHg, was significantly lower. 6] Compared to the average value of the right ventricle-pulmonary artery systolic pressure gradient [RV-PA] in the survived group, 24.95a15.44 mmHg, that in the expired group, 35.09*17.01 mmHg, was significantly higher. 7] Compared to the average value of the right ventricle to left ventricle systolic pressure ratio [RV/LV] in the survived group, 0.55*0.15, that in the expired group, 0.80a0.20, was significantly higher. 8] Compared to the average value of the pulmonary artery-left atrium peak pressure gradient [PA-LA] in 15.85x12.29 mmHg that in the expired group, 4.18x6.00 mmHg, was significantly lower. It is, therefore, suggested that in the operating room, PA-LA is as valuable as RV - PA, RV/LV in making important surgical decision and predicting the prognosis.
판막없는 도관을 이용한 Rastelli 수술 -치험 1예-
김응수,정원상,김창호,Kim, Eung-Su,Jeong, Won-Sang,Kim, Chang-Ho 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.2
The development of extracardiac valved conduits for establishment of RV-PA continuity has permitted repair of previously uncorrectable congenital heart anomalies and has facilitated the repair of other complex lesions. But the distressing problem of neointimal peel formation with eventual conduit obstruction in patients with Dacron valved conduits has led to the need for premature replacement in many patients. Therefore in the absence of pulmonary hypertension, hypoplastic pulmonary arteries, significant right ventricular dysfunction or unrepaired tricuspid regurgitation, preference of a valveless conduit to a valved conduit gives excellent results and may diminish the need for late reoperation. In our Hanyang University Hospital, the Rastelli operation was performed for the repair of pulmonary atresia with a valveless Gore-Tex conduit. The patient was operated on with good result. The CVP after operation was 8-13 mmHg at POD #0 and 4-6 mmHg from POD #3-4. Postoperatively the patient was acyanotic and had improved physical capacity compared with his preoperative status.