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이신영,김근호,Lee, Sin-Yeong,Kim, Geun-Ho 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.1
At the Department of Thoracic and Cardiovascular Surgery, Hanyang university, from 1976 to 1984, 102 patients operated for isolated patent ductus arteriosus were studied. The correlation between the degree of left ventricular hypertrophy [LVH] and hemodynamic data, and postoperative changes of electrocardiographic findings were evaluated. The following results were obtained; [1] Of 102 patients with isolated patent ductus arteriosus, 78 patients [76.5%] were found to have LVH by EKG, preoperatively. [2] The patients with LVH had higher incidence of respiratory infection [79.4%] compared to patients without LVH. [3] Frequent physical findings in the patients with LVH were precordial bulging and P2 accentuation on auscultation. The typical continuous machinery murmur was not different in two group with or without LVH. [4] 66.1% of patients with LVH showed more than 56% of cardiothoracic ratio [CTR] on simple chest X-ray. 56.5% of patients without LVH showed less than 50% of CTR. [5] In the patients found to have LVH by EKG, the correlation between values of Svl+Rv6 and Qp/Qs in hemodynamic data was correlation coefficient 0.57 and between CTR and Qp/Qs was correlation coefficient 0.51. [6] In patent ductus arteriosus with LVH following surgery, the values of Svl+Rv6 was changed from preoperative 153.6$\pm$42.78% to 107.7$\pm$19.58% within 3 months and to 80.4$\pm$12.22%, which is within normal range of Svl+Rv6 on EKC, after 6 months.
이신영,강정호,지행옥,Lee, Sin-Yeong,Gang, Jeong-Ho,Ji, Haeng-Ok 대한흉부심장혈관외과학회 1987 Journal of Chest Surgery (J Chest Surg) Vol.20 No.1
The incidence of syphilitic aortic aneurysm was decreased now a day. We experienced a case of huge syphilitic ascending aortic aneurysm from just above portion of aortic annulus to about 1 cm below innominate artery without aortic insufficiency. Surgical correction was done by replacement of ascending aorta with woven Dacron graft under cardiopulmonary bypass. Postoperative course was uneventful and discharged 15 days after surgery with good condition.
대동맥폐동맥중격결손과 좌상공정맥을 합병한 VSD의 치험
이신영,지행옥,Lee, Sin-Yeong,Ji, Haeng-Ok 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.4
A case of ventricular septal defect associated with aorticopulmonary septal defect, left superior vena cava, and pulmonary hypertension in 6 years old boy is presented. Teflon patch closure of ventricular septal defect through transtricuspital procedure and division and suture closure of aorticopulmonary window performed under cardiopulmonary bypass with cardioplegia. The postoperative course was uneventful and discharged with good general condition.
이신영,손동섭,김창호,Lee, Sin-Yeong,Son, Dong-Seop,Kim, Chang-Ho 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.2
We have experienced two cases of ascending aorta aneurysm with aortic regurgitation in Marfan`s syndrome. There were abnormal findings in cardiovascular system associated with abnormalities of skeletal systems. They had total replacement of the ascending aorta and aortic valve with Bjork-Shiley`s aortic valve composite graft and reimplantation of coronary ostia on the graft. Their postoperative courses were uneventful and discharged with good clinical results for follow up.
10 kg 이하의 활로4징증 환자에서 완전교정술에 관한 임상적 고찰
이신영,김창호,Lee, Sin-Yeong,Kim, Chang-Ho 대한흉부심장혈관외과학회 1991 Journal of Chest Surgery (J Chest Surg) Vol.24 No.6
The surgical management of symptomatic tetralogy of Fallot in infants is debatable. From November 1986 to August 1990, 21 infants under 10 kg of the body weight with tetralogy of Fallot underwent primary repair. Mean body weight was 8.6$\pm$1.40kg. All the patient were clubbing and there were cyanotic except for 1 patient. Transannular patch was laid down in 8 patients. Right ventricular outflow patch was used with Goretex but pericardial patch was utilized in 3 patients at the initial period of operation. Incidence of the complications following total correction of tetralogy of Fallot was more frequent in the patients placed with transannular patch compared to the patients with right ventricular outflow tract patch. Two deaths occurred in the 21 patients, Hospital mortality was 9.4%, but there were no operative deaths in the patients who transannular patch was laid down. Causes of deaths were low cardiac output.
대동맥판 폐쇄부전이 동반된 심실중격결손에서 대동맥판성형술
이신영,김창호,Lee, Sin-Yeong,Kim, Chang-Ho 대한흉부심장혈관외과학회 1993 Journal of Chest Surgery (J Chest Surg) Vol.26 No.4
Aortic valve insufficiency with ventricular septal defect is usually treatment by plication of prolased cusps. We have performed the aortic valvuloplasty by the Trusler`s method in 14 patients of ventricular septal defect associated with aortic insufficiency. The reoperations were performed in the 4 cases[29%] due to recurrent aortic insufficiency after aotic valvuloplasty. Two patients underwent aoritc valvular replacements for the tears of repaired aortic cusps after primary aortic valvuloplasty for aortic insufficiency. The other two patients had aortic valvuloplasties again. Death occured in one case of aortic valvular replacements. The cause of death was low cardiac output syndrome soon after aortic valvular replacement for recurrent aortic insufficiency .
PVA-Al(III) 착물 첨가 $UO_2$소결체와 AlOOH 첨가 $UO_2$소결체의 소결 특성 비교
이신영,유호식,이승재,김형수,배기광,Lee, Sin-Yeong,Yu, Ho-Sik,Lee, Seung-Jae,Kim, Hyeong-Su,Bae, Gi-Gwang 한국재료학회 2000 한국재료학회지 Vol.10 No.1
$UO_2$분말에 PVA-Al(III) 착물과 AlOOH를 각각 0.03~1.0wt%를 첨가하여 소결체를 제조한 후 소결체 특성을 비교하였다. PVA-Al(III) 착물과 AlOOH는 $1000^{\circ}C$의 소소분위기에서 열분해하는 경우 생성상은 $\theta-Al_2O_3$이었다. 순수 $UO_2$분말에 비해 AlOOH가 첨가된 혼합 분말의 곁보기 밀도는 더 높았고, PVA-Al(III) 착물이 첨가된 혼합 분말은 더 낮은 겉보기 밀도를 보였다. AlOOH가 첨가된 소결체의 경우 약 $800^{\circ}C$ 부근에서 치밀화가 시작되었지만, PVA-Al(III) 착물이 첨가된 소결체의 경우에는 약 $900^{\circ}C$에서 치밀화가 시작되었다. 기공 크기 분포는 AlOOH가 첨가된 $UO_2$소결체의 경우에 monomodal 형태로, 그리고 PVA-Al(III) 착물의 첨가된 소결체의 경우에는 bimodal 형태로 나타났다. 결정립 크기는 1wt% 첨가시 AlOOH가 첨가된 $UO_2$소결체의 경우에 약 $13\mu\textrm{m}$이었지만, PVA-Al(III) 착물의 첨가된 소결체의 경우에는 약 $\36mu\textrm{m}$까지 성장하는 현저한 효과를 확인하였다. The sintering characteristics of PVA-Al(III) complex added $UO_2$ pellet and AlOOH added $UO_2$pellet were compared. The major phase of PVA-Al(III) complex and AlOOH decomposed at $1000^{\circ}C$ in $H_2$atmosphere was $\theta-Al_2O_3$. Compared with the apparent density of pure $UO_2$, that of AlOOH added $UO_2$ powder was higher but that of PVA-Al(III) complex was lower. the densification of AlOOH added $UO_2$ pellet was initiated at about $800^{\circ}C$, the densification of PVA-Al(III) complex added $UO_2$ pellet was initiated at about $900^{\circ}C$ respectively. In a view of pore size distribution, the PVA-Al(III) complex added $UO_2$ pellet appeared as monomodal type, whereas the AlOOH added $UO_2$ pellet appeared as bimodal type. The grain size of AlOOH added $UO_2$ pellet was about $13\mu\textrm{m}$ but the grain size of PVA-Al(III) complex added $UO_2$ pellet was increased up to about $36\mu\textrm{m}$.
윤영철,이신영,김창호,Yun, Yeong-Cheol,Lee, Sin-Yeong,Kim, Chang-Ho 대한흉부심장혈관외과학회 1993 Journal of Chest Surgery (J Chest Surg) Vol.26 No.12
Twelve patients had undergone repair of atrioventricular septal defects. Age at operation ranged from 2.4 years to 17 years[mean, 8.25 years]. Five patients were male and seven were female. Three patients had complete atrioventricular septal defect[Rastelli type A] associated with Down`s syndrome. One of the three patient with complete atrioventricular septal defect had tetralogy of Fallot. Three patients had the intermediate form and seven patients had the partial form. The primum atrial septal defect was closed with pericardial patch. The atrioventricular valve septal commissure[mitral cleft] was closed with pledgeted sutures. Three complete atrioventricular septal defect were undergone by two-patch technique. A crescent-shaped Dacron patch was used to occlude the ventricular septal defect. One patient of partial form was sudden death 5 days postoperatively. There were no another complications after surgery. One patient underwent reoperation for opened mitral cleft 2.5 years postoperatively. New York Heart Association functional class of patients was improved postoperatively.