Subcoronary implantation of the Medtronic stentless bioprosthesis and an extension using a vascular tube prosthesis provide a safer alternative to the more invasive conventional composite graft replacement or a full root replacement using a homograft or a stentless valve. The advantage lies in eliminating the need for coronary mobilisation and anastomosis which actually lead to the increased ri...

Between May 2, 1990 and May 4, 1999. 124 consecutive patients received a total of 130 intestinal allografts: 51 isolated intestine and 79 composite visceral grafts (62 liver :!: intestine and 17 multivisceral). Of these. 73 (59%) were children and 51 (41%) were adults. All grafts were cadaveric and ABO identical. No attempts were made to alter the graft immunologic tissue with irradiation. anti...

Since the nose is located in the center of the face, small asymmetries and imperfections are easily recognized. One subunit of the nose is the nasal ala, a region that, when reconstructed, requires the achievement of esthetic and functional results. This poses a challenge to the plastic surgeon. In this article, we describe 3 cases of composite auricular grafts used for nasal alar reconstructio...

OBJECTIVE To determine whether the proximal anastomosis interferes or not in mid- and long-term patency of these grafts. METHODS One hundred twenty-three out of 481 patients who had undergone surgery using radial artery (RA) were restudied. The mean age was 58.8 + 10.4 years. In 96 (78.05%) patients the cardiopulmonary bypass (CPB) was used. Considering all surgical grafts, 382 coronary branc...

Background—Coronary artery bypass graft surgery with cardiopulmonary bypass is a safe, routine procedure. Nevertheless, significant morbidity remains, mostly because of the body’s response to the nonphysiological nature of cardiopulmonary bypass. Few data are available on the effects of off-pump coronary artery bypass graft surgery (OPCAB) on cardiac events and long-term clinical outcomes. Meth...

In many insects, grafting a larval leg onto the contralateral leg stump reverses one transverse axis and leads to the regeneration of supernumerary legs at each of the two points of maximum discrepancy on the graft/host junction. These operations were performed on the cricket Acheta domesticus, grafting between tibiae of pro- and metathoracic legs, and between tibia and tarsus, in order to dedu...

OBJECTIVES We compared the extent of healing and hearing improvement following tympanoplasties performed with the use of cartilage-perichondrium composite grafts and temporalis muscle fascia grafts. PATIENTS AND METHODS Fifty consecutive patients (22 males, 28 females; mean age 30+/-14 years; range 11 to 63 years) with chronic otitis media were divided into two groups to receive cartilage-per...

Bone is an essential organ for health and quality of life. Due to current shortfalls in therapy for bone tissue engineering, scientists have sought the application of synthetic materials as bone graft substitutes. As a composite organic/inorganic material with significant extra cellular matrix (ECM), one way to improve bone graft substitutes may be to engineer a synthetic matrix that is influen...

Substitution urethroplasty for the treatment of male stricture disease is often accompanied by subsequent tissue fibrosis and secondary stricture formation. Patients with pre-existing morbidities are often at increased risk of urethral stricture recurrence brought upon in-part by delayed vascularization accompanied by overactive inflammatory responses following surgery. Within the context of th...

BACKGROUND AND PURPOSE The methods of reconstruction for proximal femur bone tumors that are used most often include modular prosthetic replacement and allograft-prosthesis composite reconstruction. In modular prostheses, the abductors are detached from the insertion and then reinserted into the implant, and the iliopsoas is detached and left free. In the allograft-prosthesis composite, the det...