Biomaterials, including non-biodegradable and biodegradable polymers, and collagen and fibrin matrices, have been used in experimental and clinical arterial reconstruction. While these biomaterials exhibit various characteristics suitable for arterial reconstruction, the patency of biomaterial-based arterial substitutes remains problematic because of inflammation and thrombogenesis. Endothelial...

Objective/background This study is a case report that addresses the key aspects of vascular reconstruction, as well as the intraoperative complications, postoperative morbidity, and possibility of adjunctive therapy. Methods This article reports the case of a 46 year old female patient with a leiomyosarcoma located in the middle segment of the inferior vena cava (between the renal and hepatic...

Various methods are available for preservation of vascular grafts for pulmonary artery (PA) replacement. Lyophilization and cryopreservation reduce antigenicity and prevent thrombosis and calcification in vascular grafts, so both methods can be used to obtain vascular bioprostheses. We evaluated the hemodynamic, gasometric, imaging, and macroscopic and microscopic findings produced by PA recons...

BACKGROUND Vascular reconstructions are the established treatment for ischemic cerebrovascular disease. Cerebral hyperperfusion syndrome (CHS) is occasionally seen after vascular reconstruction and manifest clinical symptoms. The purpose of this study is to investigate the incidence and clinical features of CHS after vascular reconstruction. METHODS A total of 144 patients with ischemic cereb...

o bjective: to determine the etiology, signs and symptoms, angiography indications and angiography findings in patients with limb penetrating injuries suspected to have arterial injury. m e thods: this was a cross-sectional study being performed in imam reza hospital affiliated with mashhad university of medical sciences, iran between september 2011 and march 2013. we included those patients wi...

OBJECTIVE To examine the impact of major vascular resection on sarcoma resection outcomes. SUMMARY BACKGROUND DATA En bloc resection and reconstruction of involved vessels is being increasingly performed during sarcoma surgery; however, the perioperative and oncologic outcomes of this strategy are not well described. METHODS Patients undergoing sarcoma resection with (VASC) and without (NO-...

Vessels in retinal fundus images are useful in revealing the severity of eye-related diseases. In addition, they can act as landmarks for localizing lesions and the central vision area, and guiding laser treatment of neovascularization. In this paper, we propose a two-stage method to identify and extract vascular structure. First, vessels are enhanced by mathematical morphology with respect to ...

As experiencewith the endoscopic endonasal approach (EEA) for skull base tumors continues to grow, surgical techniques must continue to evolve to solve increasingly complex challenges. EEA is now used for many extensive lesions that were once thought to be resectable only by traditional open approaches. Along with the increased use of EEA for resection, however, comes the need for more versatil...