• Journal of Chest Surgery
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• 제23권4호
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• pp.667-675
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• 1990

From June, 15th, 1987 to June, 14th, 1989, 105 Duromedics bileaflet cardiac valve prostheses were implanted in 81 patients. Mitral valve replacement was done in 42 patients, 7 underwent aortic valve replacement, 28 underwent double valve replacement, & 4 patients underwent triple valve replacement. Concomitantly used valves were 13 cases; 11 cases were St. Jude Medical valves[M: SJM #29 X4, #27 X5, #25 X 1, T: SJM #33] & two cases were Carpentier Edwards bioprostheses[T: C - E #31X2]. The early mortality rate[within 30 days] was 3.7%[2 patients] & the late mortality rate was 7.4%[3 patients]. Follow-up was done on 72 surviving patients; mean follow-up period was 21.17$\pm$5.36 months. Anticoagulant-related hemorrhage was observed in two patients, possible prosthetic valvular endocarditis was observed in one patient and other specific valve-related complications were none. We concluded, therefore, that good clinical results & a low complication rate could be achieved with Duromedics bileaflet valve in short-term follow-up, & long-term follow-up was also necessary.

• Journal of Chest Surgery
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• 제10권2호
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• pp.315-326
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• 1977

From 1958 to October 1977, 294 cases of acquired heart disease were operated. There were 68 cases of pericardium, 3 trauma, 2 foreign body, one cardiac thrombus, 3 atrial myxoma, 2 left atrial and 1 right atrial, 2 Budd-Chiari syndrome, and 214 valvular heart disease. Out of 214 cases of valve operation 73 valves were replaced in 64 patients. Male to female ratio was 1.46: 1. The youngest age was 14 years in male and 18 in female. The oldest was 54 years in male and 52 in female. Fifty-five cases of single valve were replaced, consisting of 47 mitral and 8 aortic valves. There were 9 double valve replacement cases which consist of 7 mitral and aortic and 2 mitral .and tricuspid valves. Six varieties of prosthetic valves, 3 ball and 3 disc types and 3 kinds of xenograft tissue valves were utilized. Beall, BjSrk-Shiley and Starr-Edwards prosthetic valves and Hancock valves were used mainly. For single valve 34. 5% and for double valve replacement 44% mortality were noted. There were 23 operative deaths out of 64 patients, over all mortality rate of 36.9%. Mortality for mitral valve replacement was 29.5%. But in recent 12 consecutive cases one death occurred, showing 8.3% mortality. In earlier days thrombocyte anti-adhesive drug dipyramidole-persantin-aspirin and/or SP 54 were adminstered. But in recent cases after heparinization, coumadin and Persantin were prescribed routinely.

• Journal of Chest Surgery
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• 제30권4호
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• pp.390-395
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• 1997

1986년 5월부터 1996년 5원까지 총 269명(조직판막70례, 금속판막 232례)의 판막 치환술 환자중 판막의 재치환술이 필요했던 12례를 분석 하였다. 승모판 재치환술이 9례, 대동맥 판막 치환이 3례로 연령범 위는 16세에서 68세까지로 50대 이후가 가장 많았다. 초인공판막치환후 재 수술이 필요했던 숭모판막의 경우 평균 87.6개월, 대동맥판막의 경우 36.7개월로서, 대부분의 경우 운동시 호흡곤란이 주증상이었으며 원인으로서는 판막자체의 구조적 실패 5례, 심내막염 2례였으며 재치환술에 사용된 판막은 기계판막 11례, 조직판막 1례로 수술후 사망률은 17% (2/12)였고 술후 심내막염 및 폐렴에 의한 호흡부전으로 사망하였다.

• The Journal of Advanced Prosthodontics
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• 제4권4호
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• pp.197-203
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• 2012

PURPOSE. The aim of this systematic review was to address treatment outcome according to attachment systems for mandibular implant overdentures in terms of implant survival rate, prosthetic maintenance and complications, and patient satisfaction. MATERIALS AND METHODS. A systematic literature search was conducted using PubMed and hand searching of relevant journals considering inclusion and exclusion criteria. Clinical trial studies on mandibular implant overdentures until August, 2010 were selected if more than one type of overdenture attachment was reported. Twenty four studies from 1098 studies were finally included and the data on implant survival rate, prosthetic maintenance and complications, patient satisfaction were analyzed relative to attachment systems. RESULTS. Four studies presented implant survival rates (95.8 - 97.5% for bar, 96.2 - 100% for ball, 91.7% for magnet) according to attachment system. Ten other studies presented an implant survival rate ranging from 93.3% to 100% without respect to the attachment groups. Common prosthetic maintenance and complications were replacement of an assay for magnet attachments, and activation of a matrix or clip for ball or bar attachments. Prosthetic maintenance and complications most commonly occurred in the magnet groups. Conflicting findings were found on the rate of prosthetic maintenance and complications comparing ball and bar attachments. Most studies showed no significant differences in patient satisfaction depending upon attachment systems. CONCLUSION. The implant survival rate of mandibular overdentures seemed to be high regardless attachment systems. The prosthetic maintenance and complications may be influenced by attachment systems. However patient satisfaction may be independent of the attachment system.

• Journal of Chest Surgery
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• 제29권10호
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• pp.1102-1110
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• 1996

1955년 9월 부터 1995년 7월까지 230례의 승모판치환수술이 시행되었다. 이 중 남자는 77명 여자가 153명이 었고 평균 연령은 35.7였다. 동반된 수술은 대동맥 판막치 환술(40례), 삼첨 판윤성 형술(25례), 대동맥판치환술+삼첨판성형술(8례),삼첨판치환술(2례)등이 있었다. 139례의 기계판막과 91개의 조직판막이 치환되었으며, 판막의 크기와 사용된 수는 31 mm(75개), 29mm(66개), 33mm(46개), 27mm(29개) 및 25mm(14개) 등이었다. 수술전 NYHA 기능적 등급은 II(76례), III(123례), IV(31례)였으며 술후 I(175례), II(49례) 등으로 호전되었다. 술후 조기 합병증은 28에서 발생하였으며 저심박출증씨 8례로 가장 많았다. 조기사망은 6례 (2.6%)였으며 사망원인은 저심박출증(2례), 부정맥(2례), 심장파열(2례) 등이 었다. 총 추적 기간 누계는 764.4 환자-년이었으며 평균추적 기간은 43.9개월이었다. 판막과 유관한 장기 합병증은 21례에서 발생하였으며 이중 판막파괴가 10례(1.3%1환자-년), 항응혈제 출혈 5례(0.7%/환자-년), 심내막염 4례(0.5%1환자-년) 혈색전증 2례(0.3%/환자-년) 등이었고 심장에 연유한 사망은 5례(0.7%/환자-년)에서 발생하였다. 9년 장기추적중 합병증 및 사망비발생률이 판막 상호간에 유의한 차가 없었으나 판막파괴비 발생률이 기계 판막(100%)과 조직 판막(34.4%) 사이에 유의한 차가 있었다(p=0.032). 9년간 보험통계적 생존률은 96.6%였다.

• Journal of Chest Surgery
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• 제13권3호
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• pp.274-279
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• 1980

A 21 years old male student was admitted because of mediastinal mass that was noticed in routine physical examination. He complained progressive hoarseness, mild dysphagia, and anterior chest pain on deep respiration. This mediastinal mass was diagnosed as aortic aneurysm involving ascending, transverse, and descending thoracic aorta with aid of aortogram. Total prosthetic replacement of aneurysm was performed successfully using extracorporeal circulation and hypothermia. For myocardial protection during aortic cross clamping, cardioplegic solution was used and topical myocardial cooling was also adapted For simplicity of cardiopulmonary bypass, Y-shaped connectors took cerebral perfusion catheters to the main perfusion line beyond the arterial pump. Total bypass time was 219 minutes, and aortic cross clamp time was 104 minutes. Recovery was uneventful except respiratory insufficiency for first 4 days. Isotope aortogram checked on post operative 30th day showed normal aortic configuration. He was discharged on post operative 35th day. A follow-up chest X-ray study 5 months later showed nearly normal anatomy.

• Journal of Chest Surgery
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• 제33권1호
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• pp.45-50
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• 2000

Background: The CarboMedics prosthetic heart valve was produced in an attempt to improve the existing valve designs and was especially concerned with easily the implantation and further reduction of turbulence. Precise positioning of the valve in situ was achieved by the abilityof the valve to rotate relative to the sewing ring. Improved monitoring is possible due to increased radiopacity and the dacron sewing ring is coated with carbon to reduce pannus overgrowth. The leaflets have an opening angle of 78 degrees that apparently allows a rapid synchronous closure The aim of this study was to analyze the clinical performance of the CarboMedics valve prostheses(45 mitral 13 aortic and 7 double aortic-mitral valve replacement) were implanted in 65 patients(mean age 48.75$\pm$9.74 years) Result: The operative mortality was 3.1%(2/65) causes of death were low cardiac output syndrome. Total follow up was 1831 patient-months and mean follow up was 29.06$\pm$10.97 months/patient. No structural failure hemorrhage valve thrombosis and late death have been observed. Embolism occurred at a rate of 0.65%/Patient-year. Actuarial survival and thrombo-mbolism free rate at 36 months were 96.9% and 98.4% respectively. Consclusions: The CarboMedics valve stands for low valve related complicatons.

• Journal of Chest Surgery
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• 제29권12호
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• pp.1337-1341
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• 1996

계명대학교 의과대학 흉부외과학교실에서는 1989년 9월부터 1996년 3월까지 13명의 판막혈전증환자에서 16례의 재수술을 시행하였다. 연령분포는 32세부터 63세까지로 평균연령은 45.2세였으며 남여비는 1:2.3이었다. 판막치 환술후 재수술까지 걸린 기간은 평균 27.8개월이었으며 입원후 수술시까지 걸린 시간은 평균 33.5시간이 있다. 술전 UYHA 기능분류 4도가 12례(75%)였으며 이중 6례가 쇽상태 였다. 재수술은 판막치 환술이 15례, 혈전제거술만 시행한 경우가 1례있었다. 수술사망은 4례(25%)였으며 사망원인은 패혈증이 2례. 저심박출증이 2례였다. 술후 평균 30.3개월 추적조사하였고 술후 UYHA기능분류는 평균 1.2로 양호하였으며 만기 사망례는 없었다. 판막혈전증에 대한 재수술요법은 조기 진단하여 환자상태가 비교적 안정적일때 수술하는 것이 수술사망을 줄이는 방법으로 사료된다.

• Journal of Chest Surgery
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• 제55권3호
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• pp.243-245
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• 2022

True aneurysms of the coronary artery after aortic root replacement in Marfan syndrome patients are very rare. An anomalous origin of the right coronary artery (RCA) from the left sinus of Valsalva adds complexity during aortic root surgery. We present a case of a 37-year-old male patient with Marfan syndrome who had an RCA anomaly and a 4.5-cm true aneurysm of the common coronary button 14 years after a previous Bentall procedure. A redo Bentall operation and hemi-arch replacement were successfully performed. The anomalous origin of the RCA from the left sinus of Valsalva was safely divided and anastomosed as separate coronary buttons to the prosthetic composite valve graft. To prevent coronary button aneurysms after aortic root surgery in Marfan patients, the coronary buttons and the corresponding side holes on the prosthetic graft must be reduced to the maximum possible extent.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제39권6호
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• pp.297-303
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• 2013

Alloplastic total replacement of the temporomandibular joint (TMJ) was developed in recent decades. In some conditions, previous studies suggested the rationale behind alloplastic TMJ replacement rather than reconstruction with autogenous grafts. Currently, three prosthetic products are available and approved by the US Food and Drug Administration. Among these products, customized prostheses are manufactured, via computer aided design/computer aided manufacturing (CAD/CAM) system for customized design; stock-type prostheses are provided in various sizes and shapes. In this report, two patients (a 50-year-old female who had undergone condylectomy for the treatment of osteochondroma extending to the cranial base on the left condyle, and a 21-year-old male diagnosed with left temporomandibular ankylosis) were treated using the alloplastic total replacement of TMJ using stock prosthesis. The follow-up results of a favorable one-year, short-term therapeutic outcome were obtained for the alloplastic total TMJ replacement using a stock-type prosthesis.