National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran TANAFFOS (Respiration) 1735-0344 3 2(spring) 2004 06 01 Evaluation of Vascular Access Using Cryopreserved Jugular Vein (Experimental Study) 13 17 241501 EN Seyed Hamed Ghodsi Khorsand Experimental Research Unit, NRITLD Hossein Banazadeh Department of Vascular Surgery, Jalaledin Ghanavi Experimental Research Unit, NRITLD, Poopak Farnia Experimental Research Unit, NRITLD, Afshin Bahrami Experimental Research Unit, NRITLD Mohammad Rakhshan Department of Pathology, Jaleh Mohsenifar Department of Pathology, Naser Valaei Shaheed Beheshti University of Medical Sciences and Health Services, TEHRAN-IRAN Habibollah Peyravi Department of Vascular Surgery Journal Article 2021 01 06 Background: While considering the rise in the mean age of the chronic renal failure (CRF) patients and increasing frequency of those who need constant hemodialysis, the creation of a native arteriovenous fistula (AVF) is not possible, which could be due to the inaccessibility of the superficial veins. This study was conducted to evaluate the efficacy of the vascular access, using cryopreserved jugular vein. Materials and Methods: In this experimental study, 15 sheep (Wt.= 30-40 kg) were selected between the year 2001 and 2002. The external jugular vein of each sheep was excised and after cryopreservation was put in liquid nitrogen (-196°C). Twenty-eight days later, the sample veins were used as allograft (in another sheep), and autograft (in the same sheep) and were placed between carotid artery and external jugular vein as bridge AVF. The efficacy, function, and patency were evaluated using doppler sonography and pathologic report. Results: Patency rate of sample was 100% after 3 months in both allografts and autografts. Thrombosis, hematoma, and infection were not seen. No inflammation was detected in pathologic report. Conclusion: This study showed that using allograft vein for vascular access is feasible and suitable, and it is recommended specially for those with previously infected fistula. (Tanaffos 2004; 3(10): 13-17) https://www.tanaffosjournal.ir/article_241501_440db60529c932b2ad32801a88c28876.pdf