abstract background: keratoconus is a bilateral corneal disease, which one way to cure it is to transplant. the transplantation may be rejected by recipient's immune system, which leads to failure of the graft. this study aimed to analysis the factors affecting bilateral corneal graft rejection based on copula function. methods: a sample of bilateral graft rejection times was assessed. since co...

Background: Peripheral vascular injury associated with lower limb trauma is a well-known emergency. The experience for the management of popliteal artery trauma have mainly come from managing the traumas of military personnels during Iran-Iraq war. The present study compared the effects of two currently-used surgical techniques in the management of popliteal trauma, namley femoropopliteal bypas...

background: despite advances in the medical care of renal transplant recipients which have led to an improvement in allograft survival, renal allograft rejection is still a major ob-stacle to successful organ transplantation. understanding the mechanisms contributing to allograft rejection will be of great importance for the development of efficient antirejection strategies. objective: the aim ...

Background: Iliac osteotomies in adolescent patients may accompany graft related difficulties such as graft absorptionand delayed union. A new modification of iliac osteotomies has been proposed to address these difficulties.Methods: A total of 24 consecutive hip joints in 21 juvenile or adolescent patients who were candidate for salter ortriple pelvic osteotomy were included....

purpose: to report two patients with keratoconus who underwent regrafting to correct anisometropia and high astigmatism after penetrating keratoplasty. patients and findings: the first case is a 34-year-old man with keratoconus who had undergone penetrating keratoplasty. the sutures were removed 6 months postoperatively that led to high hyperopia. regraft was performed considering vitreous leng...

conclusions our study showed that desmopressin could not reduce the amount of blood loss after cabg. also, desmopressin did not have a significant effect on coagulation status. therefore, based on the results of our study, it seems that the use of this medication cannot be a helpful for patients with any indication for cabg. background coronary artery bypass grafting (cabg) is a common surgical...

among the synthetic polymers, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (phbv) microbial polyester is one of the biocompatible and biodegradable copolymers in the nanomedicine scope. phbv has key points and suitable properties to support cellular adhesion, proliferation and differentiation of nanofibers. nanofibers are noticeably employed in order to enhance the performance of biomaterials,...

background although the immunosuppressant cyclosporine (csa) is widely used after kidney transplantation over the long term, there is still no firm consensus on the best way to monitor of csa blood levels. objectives cyclosporine (csa) assay is critical for the management of renal transplant recipients due to inter– and intra–patient variation in csa absorption and metabolism. patients and meth...