• Journal of Chest Surgery
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• 제16권4호
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• pp.458-469
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• 1983

Between October, 1978, and December, 1982, Glutaraldehyde-stablized pericardial xenografts [Ionescu-Shiley valve] were used for heart valve replacement in 409 patients.[251 mitral, 49 aortic, 11 tricuspid, and 98 multiple valve replacement]. There were 31 early deaths [7.6%], and 371 operative survival were observed for a total of 507.6 years over a period of 1 to 44 months. [mean 17 months]. Actuarial analysis of late results indicates an excepted survival rate at 4 years of 86.25.4% for patients with mitral, 79.37.1% for patients with aortic valve replacement. Actuarial survival rates for total patients at 4 years was 77.88.2%. The rate of systemic embolism has been 1.6% per patient-year for mitral and 1.8% per patient-year for aortic group in the presence of anticoagulation treatment. Among the 6 embolic episodes, 2 patients were died. The incidence of hemorrhagic complication was 1.3% per patient-year for anticoagulated patients. There were 6 confirmed valve failures, five in mitral and one in aortic position. Re-replacement of destructed valve was performed in one patient and others were treated medically. Among the 6 episodes, 3 occurred in children [Below 15 years], it account almost 9 times higher than adult. Our clinical data compare very favorable with those obtained with other available prostheses and tissue valves, but it should be considered to give short-term anticoagulation therapy to hemodynamically stable patients and aortic valve patients, and other prosthetic valve must be considered to use in children.

• Journal of Chest Surgery
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• 제21권3호
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• pp.479-487
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• 1988

Valve replacements in 82 children, aging up to 15 years[mean 11.67 years] were done at Seoul National University Hospital during 13 years period from 1974 to 1986. The patients were composed of 5] males and 31 females and 50 patients had acquired heart disease and 32 patients congenital heart disease. 75 patients received single valve replacements, 6 patients double valve replacements, 1 patient triple valve replacement, and among all of them, 11 patients redo-replacements. The bioprosthetic valves have been applied to 58 patients and prosthetic valve to 24 patients and the latter was the main artificial valve since 1984. Among the 69 patients who had definite post-operative records, the overall mortality was 27.5%[20.3% was early mortality and 7.2% late mortality] and the overall mortality was lowered to 4.3% since 1984. There were early post-operative complication rate of 26.1% and late complication rate 34.8%, and among the latter, the valve failure rate was 11.4% patient-year, and the thrombo-embolism rate 1.76%/patient-year. 55 patients among the survivals after post-operative 1 month, were received follow-up with various anticoagulating medication for total 2046 patient-months[mini-mum 1 month to maximum 90 month, mean 37.2*25.44 months] and actuarial survival rate was 82*8% at 5 years and valve failure free and thrombo-embolic free survival rate were 61*8% and 90*3% respectively. And among them, valve failure free survival `rate of tissue valve were 91*6% at post-operative 2 years, 78*3% at 3 years, 59*9% at 4 years, 54*10% at 5 years, 53*15% at 6 years, so markedly decreased at 3-5 years post-operatively. These results suggest that cardiac valve replacement in children have been effective therapeutic method though various problems are still remained, and the choice of valve should be prosthetic valve mainly due to its durability at the present.

• Journal of Chest Surgery
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• 제25권1호
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• pp.49-56
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• 1992

Total 20 cases of reoperation for mitral vavular disease, which had been performed during the period from May 1983 till October 1991, were reviewed. This study contained 1 case of previous balloon valvuloplasty and 1 case of death with bleeding from right ventricle during sternal reenrty. The average time intervals between reoperation and previous operation was 19 years in closed mitral commissurotomy[n=4], 7 years and 2 months in mitral valve replacement[n=10], 1 year and 8 months in mitral valvuloplasty[n=4], 3 years and 10 months in open mitral commissurotomy [n=2]. The cause of reoperation in closed mitral commissurotomy was progression of the disease, and residual stenosis with progression was the cause in open mitral commissurotomy cases. Technical failure might be the cause in the cases of valvuloplasty. In prosthetic valve replacement group the causes of reoperation were primary failure. Also two cases of suggested valve thrombosis and one case of failure of tricuspid annuloplasty was noted in prosthetic valve replacement group. The used valves for reoperation were Ionescue-Shiley in 3 cases, Bjork-Shiley in 6 cases, St. Jude Medical in 2 cases and CarboMedics in 8 cases. The mortality rate was 20%[n=4] and the causes of death were low output syndrome in 1 case, multiple organ failure in 2 cases and bleeding in 1 case during sternal reentry. During follow up 1 case of sudden death was observed.

• Journal of Chest Surgery
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• 제30권8호
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• pp.815-818
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• 1997

인공판막심내막염은 드물지만 합병증으로 판막주위가 감염으로 파괴되고 농양이 형성되는 경우가 있어 높 은 사망율을 가져온다. 그러나 적절한 항생제의 사용, 심장초음파 검사에 기초를 둔 조기 진단,수술시 효과적인 심근보호. 그리고 수술경험의 축적으로 인공판막심내막염에 있어서 보다좋은 장단기 결과를 얻을 수 있다. 35세 남자 환자가 94년 8월에 대동맥판막, 승모판막대치술과 함께 삼첨판륜성형술을 받은후 특별한 증상 없이 지내다가 갑자기 시작된 실어증, 양안구의 좌측편위, 고열로 입원하여 심장초음파 검사를 시행한 결과 인공판막 심내막염 소견을 보여 6주간의 항생제 치료후 수술을 시행하였다. 수술소견상 대동맥 판륜을 따라 증식물 소견과 판막 주위의 누출, 농양주머니가 형성되어 있었고 승모판막은 비교적 건강해 보였다. 수술은 감염된 조직의 전체적인 제거와 냉동저장된 대동맥 동종이식편을 이용하여 재대치 수술을 시행했다. 환자는 수술후 63일째 퇴원했으며 퇴원후 7개월 동안 외래 추적 관찰결과 특별한 이상소견 없이 지내고 있다.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제22권4호
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• pp.383-396
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• 2000

Before the advent of early plastic or maxillofacial reconstructive surgery, facial features could only be replaced and mimicked by prosthetic, artificial means. Facial deformity or dysfunction, whether congenital or acquired by trauma or mutilating disease, has long been an area of constant research, development and innovation in many cultures of the world. One of the greatest contributors to the need for maxillofacial prosthetics has been physical conflict and warfare. The use of maxillofacial prostheses is not merely the replacement of a missing or disfigured aspect of the face, but the rehabilitation of that individual back into the society from which they originate. Rehabilitation includes the restoration of the person's self worth and confidence, not just physically but psychologically. In sixteenth century, Ambroise Pare, French military surgeon, first have tried many maxillofacial prosthetics for injured war soldiers with papier-mache, silver, gold and copper. According to patient's demand who lost their maxillofacial figures, maxillofacial personnel have increased and prosthetic's skill have been advanced all of the world. Over the last decade, there has been a very rapid development in technical possibilities to provide patients with facial prostheses retained by skin penetrating implants. This article will present overall history of maxillofacial prostheses and some background information on the materials used from the old world. And to overcome still many limitation of prosthetic, new minds and new ideas for technique and materials should be developed.

• Journal of Chest Surgery
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• 제29권6호
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• pp.651-654
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• 1996

최근에 본원에서 혈전증에 의한 급성 인공판막기능부전 1례를 치험하였기에 보고한다. 환자는39세 남자로서 내원 3일전부터 호흡곤란과 기 좌호흡을 호소하였다. 과거력 상 인공판막대치술 후 의사의 충고에도 불구하고 최근 4개월 동안 항응고제를 복용하지 않았다. 심초음파검사상 인공판막 판엽의 움직임에 제한이 있었다. 우리는 응급으로 혈전제거술과 인공판막 재치환술을 시행하였다. 수술 후 환자는 특별한 합병증없이 추적 관찰중에 있다.

• Journal of Chest Surgery
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• 제15권2호
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• pp.254-258
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• 1982

We have experienced one case of Redo AVR which was performed 13 months after initial operation. The patient had received AVR [Bjork-Shiley disc valve] and MVR [Ionescu-Shiley tissue valve] because of ASI and MSI at March, 1981. During follow up through the OPD, he complained exertional dyspnea and progressive jaundice with hemolytic anemia was also noticed since 1 month prior to readmission. Cardiac catheterization and angiography revealed periaortic valvular leakage due to partial detachment of previously replaced prosthetic aortic valve. Re-replacement of prosthetic aortic valve with Ionescu-Shiley valve was performed and the patient was discharged at 17th POD without any complications.

• Journal of Chest Surgery
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• 제32권11호
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• pp.1049-1051
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• 1999

We performed a reoperation of failed tricuspid mechanical valve in a 63-year-old female patient because the overgrown endothelial pannus had entrapped the prosthetic leaflets. Four years ago, the patient underwent mitral and tricuspid valve replacements with 31 and 33 mm Carbomedics, respectively. The patient showed symptoms of neck vein distention, abdominal distention and peripheral edema. The chest film, echocardiography and cineangiography confirmed the diagnosis of tricuspid valve. During the operation, we found the entrapped leaflets of the tricuspid valve in a partially closed state and the endothelial pannus had overgrown into the leaflets. Carpentier-Edward bovine pericardial valve was inserted and the patient was discharged with no significant events.

• Journal of Chest Surgery
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• 제29권3호
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• pp.326-330
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• 1996

유로키나제와 헤파린을 사용하여 혈전용해요법에 의해 치료된 기계판막 혈전의 3례를 경험하였다. 두 명의 환자는 완전히 회복하여서 자신의 직업과 활동적인 삶으로 되돌아갔으나, 다른 한 명은 뇌출혈과 뇌경색으로 사망하였다.

• Journal of Chest Surgery
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• 제25권11호
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• pp.1354-1357
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• 1992

From May 1984 through December 1991, twelve patients underwent valve replacement for infective endocarditis at National Medical Center. There were 7 male and 5 female, ranged in age 16 to 61[mean 34.1] years. Four had native valve endocarditis, six had prosthetic valve endocarditis and two were associated with congenital heart disease. The indication of surgery was medically intractable congestive heart failure in all patients. 5 patients revealed systemic embolization and 4 patients had uncontrollable sepsis. The causative organism was Streptococcus in 4 patients, Staphylococcus in 1 patient and Pseudomonas in 2 patients. Hospital mortality was 33.3%[4/12]. The main cause of death was low cardiac output due to perioperative myocardial damage and cerebral vascular accident. There were 2 late mortality because of recurrent endocarditis. This review showed much higher mortality in prosthetic valve endocarditis[66.7%] than native valve endocarditis[33.3%].