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임창영 대한흉부심장혈관외과학회 1994 Journal of Chest Surgery (J Chest Surg) Vol.27 No.1
Allograft cardiac valves have been used for over 30 years to replace diseased cardiac valves, reconstruct right or left ventricular outflow tract. With increasing its requirement, the establishment of a viable bank capable of maintaining the viability of graft over a prolonged period would be desirable. The method for determining the viability of allograft by metabolic assay technique using radiolabeled aminoacids has been used recently. An experimental study was done for evaluation of viability of cardiac allograft which was preserved for 14 days at 4oC in nutrient medium[fresh preservation] by metabolism assay technique using 3H-glycine. Also, the effectiveness of low concentration antibiotic solution[CLPV] for sterilization was evaluated. The effectiveness of CLPV solution for sterilization of allograft was perfect. Pre-treatment cultured organisms were not cultured after treatment at all in every cases. The viability of allograft after sterilization was reduced to 66.4%[aortic wall], 74.7%[pulmonary wall], 76.3%[aortic valve], 67.9%[aortic wall]. And after the fresh preservation for 14 days, the viability was reduced to 14.7%, 18.5%, 17.7%, 19.0%, respectively.In conclusion, viability of allograft was reduce to 71.3[66.4-76.3]% after sterilization and 17.5[14.7-19.0]% after fresh preservation. And sterilization effect of CLPV solution was satisfactory.
심내막염 환자의 동종대동맥편을 이용한 대동맥 근부 치환술 - 1례 보고 -
임창영,이헌재,Im, Chang-Yeong,Lee, Heon-Jae 대한흉부심장혈관외과학회 1997 Journal of Chest Surgery (J Chest Surg) Vol.30 No.8
세균성 심내막염에 의한 대동맥판 폐쇄부전의 수술치료에 있어서, 우수한 혈역학적 기능과 염증에 대한 높은 저항력 때문에 동종대동맥판을 사용한 수술이 우선적으로 고려되고 있다. 수술방법중에서 대동 맥근부 치환술이 관상동맥하 부착법에 비하여 술 후 대동맥관 폐쇄부전이 적게 발생하는 장점을 갖는다. 46세의 남자가 세균성 심내막염에 의한 급성 대동백판 폐쇄부전 및 심부전으로 내원하였다. 내과적 치료에 반응하지 않고 심부전이 점차 심해져서 20 m동종대동맥편을 이용한 대동맥근부 치환수술을 응급으로 시행하였다. 수술소견상 우관상판첨에 구멍이 나 있었고 좌, 우관상판첨사이의 교련에 심한 석회화가 있었다. 수술후 환자는 순조로이 회복되었고 심초음파검사상 이식된 동종동맥 판의 폐쇄부전소견 은 발견되지 않았다. 염증소견들도 술 후 8주간의 항생제투여로 소실되었다. 약물치료로 조절되지 않는 세균성 심내막염에 의한 급성 대동맥판 폐쇄부전을 동종동맥 판을 사용한 대동맥근부 치환수술로써 성 공적으로 치료하였다. Aortic valve replacement with aortic allograft has been considered a treatment of choice for aortic valve disease secondary to bacterial endocarditis because of its good homodynamic performance and higher resistance to infection. The aortic root replacement technique might be superior to the subcoronary allograft implantation technique with regard to aortic regurgitation. A 46 yea,rs old male patient had acute aortic regurgitation with progressing heart failure secondary to acute bacterial endocarditis. The patient underwent emergent aortic root replacement using 20 mm aortic allograft. At operation, right coronary cusp perforation and heavy calcification of commissure between right and left coronary cusp were observed. The patient recovered well and postoperative echocardiography demonstrated no aortic regurgitation. Inflammatory signs were subsided after 8 weeks of antibiotics therapy. Medically uncontrolled acute bacterial endocarditis was treated successfully by aortic root replacement using aortic homograft.
다발성 신농양과 IgA 신병증을 동반한 원발성 담즙성 간경변 1예
임창영,송일한,신정우,기명주,조종태 대한간학회 2000 Clinical and Molecular Hepatology(대한간학회지) Vol.6 No.2
Primary biliary cirrhosis is a chronic progressive disease most often affecting women. It is characterized by the progressive destruction of the small intrahepatic bile ducts with portal inflammation leading to hepatic fibrosis and cirrhosis. Autoimmune diseases such as Sjogren's syndrome, rheumatoid arthritis, dermatomyositis, CREST syndrome, and autoimmune thyroiditis may be found in up to 80% of the patients. Primary biliary cirrhosis is also associated with renal diseases such as distal renal tubular acidosis, bacteriuria and glomerulopathy, but there is no case report of primary biliary cirhosis with renal manifestations in Korea. We are reporting a case of primary biliary cirrhosis with multiple renal abscess and IgA nephropathy with a review of the literature.(Korean J Hepatol 2000;6:223-228)
임창영,문승철,양진영,구원모,김대식,이건,이헌재,Lim, Chang-Young,Moon, Seung-Chul,Yang, Jin-Young,Koo, Won-Mo,Kim, Dae-Sig,Lee, Gun,Lee, Hyeon-Jae 대한흉부심장혈관외과학회 1999 Journal of Chest Surgery (J Chest Surg) Vol.32 No.11
Background: ATS mechanical valve is a recently introduced pyrolytic carbon bileaflet prosthesis. This report is to evaluate the results of hemodynamic and anticoagulant therapy after ATS valve replacement. Material and Method: From May 1995 to October 1998, 53 patients received 65 ATS prosthesis; 38 Mitral(27-33 mm), 27 Aortic(19-25 mm). 2 CABGs and 5 Tricuspid annuloplasty were taken concomitantly. The follow up period was 769 patient-months(mean 16.2$\pm$10.0), varied from 1 month to 39 months with 92.5% follow up rate. All patients were evaluated with Doppler echocardiography, 7-14 days after operation. Result: NYHA functional class was improved significantly, from 2.6$\pm$0.8 preoperatively to 1.3$\pm$0.4 postoperatively. The average value of peak and mean transvalvular pressure gradients were 25.7$\pm$13.5 mmHg, 12.7$\pm$8.3 mmHg in aortic position. In the mitral position, the average values of peak and mean transvalvular pressure gradient and valve area were 5.9$\pm$2.5 mmHg, 3.1$\pm$0.8 mmHg and 2.9$\pm$0.5 $\textrm{cm}^2$, respectively. In the anticoagulant therapy, mean INR was 2.5$\pm$0.6 in mitral valve replacement and 1.9$\pm$0.5 in aortic valve replacement. There was no anticoagulant related complication. During that period, there were 3 hospital death(5.9%) and 1 late death(1.9%). Conclusion: The early clinical results of the ATS heart valve replacement is quite satisfactory, and low target INR reginmen is safe. And long term follow of hemodynamic characteristics is also necessary.
임창영,이명인,김인호,조정희,박상현,노임환,김석배,양미라,오형태,허재형 대한소화기학회 1999 대한소화기학회지 Vol.34 No.3
Background/Aims: Cellular calcium, a key physiological signaling element in cell function and also a crucial pathological intracellular messenger in cell injury, appears to be involved in the initiation and development of acute pancreatitis. The aim of this study was to evaluate the role of cellular calcium and the effect of a calcium channel blocker (nicardipine) as an antioxidant in acute necrotizing pancreatitis in rats. Methods: In male Sprague-Dawley rats, pancreatitis was induced by intraductal infusion of 3% sodium taurocholate. Then, nicardipine was administrated 1 hour before and after induction of pancreatitis. The level of serum-amylase, glutathione (GSH) and malondialde-hyde (MDA) in the pancreatic tissue, and the histologic damage were examined 6 hours after inducing pancreatitis. Results: Nicardipine administration reduced the amount of serum-amylase Moreover, pre- or post- ztreatment with nicardipine had a significant protective effect on free radical induced injury. Pre-treatment with nicardipine was better than the post-treatment. In addition, nicardipine treatment minimized pancreatic necrosis and hemorrhage. Conclusions: The oxygen free radicals and the intracellular calcium are major factors in the pathogenesis of acute necrotizing pancreatitis, and the administration of calcium channel blocker ameliorates pancreatic injury and exerts an antioxidant effect.