• Journal of Chest Surgery
• /
• 제28권7호
• /
• pp.704-707
• /
• 1995

The use of the patient`s pulmonary valve for replacement of the patient`s diseased aortic valve was introduced and developed by Mr. Donald Ross. The long term benefits of having a normal, fully viable, trileaflet semilunar valve in aortic position was demonstrated. A 38 year old male had histories of failures of previously implanted aortic prosthetic valves twice and evidence of progressive heart failure. At operation, aortic root abscess was found; the abscess extension to adjacent structures and partial valve dehiscence had occurred. The patient underwent replacement of the aortic root with autologous pulmonary valve, autologous pericardial patch repair of left ventricuar outflow tract and recontruction of the right ventricular outflow tract and pulmonary artery with prosthetic valved conduit. Postoperatively, the patient recovered well. Postoperative doppler echocardiography demonstrated minimal central regurgitation in new aortic valve. Aortic root replacement with pulmonary autograft in a patient of recurrent aortic root abscess and false aneurysm of left ventricuar outflow tract was experienced and reported with follow up echocardiography.

• 대한족부족관절학회지
• /
• 제26권4호
• /
• pp.187-191
• /
• 2022

The author experienced a case of autologous platelet-rich plasma (PRP) affecting the recovery of a chronic neuropathic diabetic foot ulcer combined with infection. A 65-year-aged male with uncontrolled diabetes presented with a Wagner grade 2 diabetic foot ulcer on his left forefoot of more than 2 weeks duration. Osteomyelitis, gangrene, and ischemia requiring acute intervention were absent. Although infection was controlled to a moderate degree, wound healing was unsatisfactory following surgical debridement and simple dressing. Therefore, intralesional autologous PRP injection was performed 5 times as an adjuvant regeneration therapy, and the recalcitrant ulcer healed in 3 months. Intralesional PRP injections are worthwhile as they promote wound regeneration, are evidence-based, safe, and can be easily performed in ambulatory care facilities.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• 제49권4호
• /
• pp.218-222
• /
• 2023

Re-ankylosis is a common postoperative complication of temporomandibular joint (TMJ) ankylosis surgery. Various surgical options to prevent re-ankylosis, both with and without interpositional material, have been discussed in the literature. However, no standardized protocol has been suggested for management or prevention of TMJ ankylosis. This paper discusses the probable causes behind TMJ re-ankylosis and presents a case of unilateral TMJ re-ankylosis, which was managed by gap arthroplasty using an autologous abdominal dermal fat graft as an interpositional material and closely monitored for signs of relapse. Autologous fat graft acted as an effective barrier between the glenoid fossa and mandibular condyle, thus preventing dead space, hematoma and heterotrophic bone formation. A brief review of the literature and update on TMJ re-ankylosis are also presented.

• Journal of Yeungnam Medical Science
• /
• 제7권1호
• /
• pp.95-103
• /
• 1990

1989년 8월 1일부터 1990년 4월 30일까지 영남대학교 의과대학 산부인과에서 대량출혈이 예상되는 18명의 환자에서 21례의 자가수혈을 시행하여 관찰한 결과 자가수혈의 가장 많은 적응증으로는 전치태반이었으며(10/21) 수술후 자가수혈 및 homologous transfusion의 빈도도 제일 많았다. 출혈위험이 있는 산모 20례중 6례에서 자가수혈로 인해 homologous transfusion을 피할 수 있었다. 혈액 채취전후의 혈압 및 맥박, 호흡 및 reticulocyte등은 통계학적으로 별차이점이 없었고, 채혈전후에 시행하였던 태아감시장치상 약 8례에서 약간의 이상이 나타났으나 대부분 자세변화 및 산소공급으로 20분 이내에 정상으로 돌아왔다. 태어난 신생아중 거대아 1명, 저체중아 3명이었으며 14명이 정상체중아였고, 분만전의 채혈로 인한 이상소견을 발견할 수가 없었다. 채취전후의 혈액학적 변화로소 채취전 Hct는 $34.1{\pm}2.9%$였고, 채취 후는 $31.8{\pm}2.4%$로 유의성이 있었다(P<0.01). 대부분의 혈액 채취시간은 4-8분 정도였으며 채혈시 산모에서 특별한 합병증을 발견하지 못하였다. 3명을 제외하고 15명이 채혈후 3주 이내에 분만하였다. 상기한 여러가지 결과 대량출혈이 예상되는 산모에 있어서 수술전에 혈액을 채취하여 필요할 때 사용할 수 있는 자가수혈은 산모 및 태아에 있어 특별한 이상을 발견할 수 없었다. 그러므로, 산모에 있어서 자가수혈은 homologous transfusion을 피할 수 있는 매우 유용한 한 방법일 수 있다는 결론을 얻었고, 채혈시 나타났던 태아감시상의 여러가지 이상소견에 대해서는 더 많은 연구가 필요할 것으로 사료된다.

• 대한관절경학회:학술대회논문집
• /
• 대한관절경학회 2007년도 제17차 추계학술대회 심포지움
• /
• pp.97-98
• /
• 2007

• 대한관절경학회:학술대회논문집
• /
• 대한관절경학회 제21차 추계 학술대회
• /
• pp.165-169
• /
• 2009

연골 결손은 자체 치유 능력이 적어 그 크기가 1 cm 이상인 경우 골관절염이 발생할 수 있다. 최근에는 3-tesla MRI 등의 발전으로 인해 수술 전에 미리 연골 손상을 정확히 진단할 수 있어 연골 손상의 치료를 더욱 적극적으로 할 수 있다. 이제까지 연골 손상에 대한 수술적 치료는 세척술(lavage) 및 변연 절제술(debridement), 미세 천공술(microfracture), 자가 골연골 이식술(autologous osteochondral graft), 자가 연골 세포 이식술(autologous chondrocyte implantation, ACI), 동종 골연골 이식술(osteochondral allograft)이 있다.

• 대한정형외과스포츠의학회:학술대회논문집
• /
• 대한정형외과스포츠의학회 2005년도 춘계학술대회 대한정형외과 스포츠의학회
• /
• pp.56-62
• /
• 2005

• Journal of Chest Surgery
• /
• 제51권2호
• /
• pp.122-129
• /
• 2018

Background: For hemodialysis patients with end-stage renal disease (ESRD), it is important to construct an efficient vascular access with a superior patency rate. This study investigated the factors influencing the efficiency of arteriovenous fistulas (AVFs) constructed using an autologous vessel and evaluated the necessity of ultrasonography as a preoperative tool for AVF construction. Methods: A retrospective analysis was performed of 250 patients in whom an AVF was constructed using an autologous vessel due to ESRD at our institution from January 2009 to April 2016. Results: The 1-, 3-, and 5-year patency rates for all subjects were 87.6%, 85.6%, and 84.4%, respectively. The patients who underwent a preoperative evaluation of their vessels via ultrasonography had better patency rates than those who did not. Superior patency rates were found in patients under 65 years of age or with an anastomotic vein diameter of 3 mm or more. The 1-year patency rate and the diameter of the anastomotic vein showed a positive relationship. Conclusion: Ultrasonography is strongly recommended for AVF construction, and efforts should be made to increase the patency rate in patients over 65. Superior clinical results can be expected when an AVF is made using an autologous vessel with an anastomotic vein diameter of at least 3 mm.

• Archives of Plastic Surgery
• /
• 제33권5호
• /
• pp.592-600
• /
• 2006

Purpose: Numerous materials, both autologous and nonautologous, have been used for augmentation of sunken areas, but they have their own limitations. The purpose of this study is to determine the histologic response and volume change of the xenogenic collagen-based scaffold($Terudermis^{(R)}$) to the transfer into a subcutaneous soft tissue location in vivo rabbit model. Methods: Eighteen New Zealand white rabbits were used. Three $1.2{\times}1.2cm$ sized subcutaneous pockets were created on the dorsal surface of each ear. $1{\times}1cm$ sized collagen matrix($Terudermis^{(R)}$) and autologous dermal graft were implanted into each pocket. Full thickness of ear was harvested in 3 days, 1, 2, 4 weeks, 3, 6 months after implantation. Results: Histological analysis of implants demonstrated progressive neovascularization, fibroblast infilteration, neocollagen bundle synthesis and organization, and few foreign body reaction. The thickness of the collagen matrix in 3 days after the operation was 87.69% of the thickness of the collagen matrix in wet state. Then it decreased to 30.17% in 6 months after the operation. The rate of decrease was similar at all points at the same time compared with autologous dermal graft. Conclusion: Our experimental study suggests that $Terudermis^{(R)}$ could be a safe material as an implant for permanent augmentation in subcutaneous tissue. However the choice of graft for augmentation should be remained to the clinical situations.

• 대한관절경학회지
• /
• 제14권1호
• /
• pp.36-40
• /
• 2010

연골 손상에 대한 수술적 치료 방법 중 자가 연골 세포 이식술은 자신의 연골 세포를 실험실에서 배양하여 이것을 다시 관절 내의 연골 결손 부위에 이식하여 증상이 있는 전층의 연골 또는 골 연골 손상을 치료하는 술식이다. 저자들은 자가연골 세포 이식술 이후 발생할 수 있는 매우 드문 합병증으로, 이식부의 골 형성 병변이 있는 1 례를 경험하였기에 보고하는 바이다.