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URL: 
http://ijvset.gums.ac.ir/article-1-83-en.html   
                    
                    
                    
					 
					
                 
                
                    
                    
                    
                     , drhossein.hemmati@gmail.com
                    
                    
                    Abstract:       (40 Views)
                    
                    
                    Background and Objectives: Arteriovenous fistula (AVF) is the ideal method for vascular access; however, it may not always be possible. Artificial grafts, such as loop and straight varieties, are gaining prominence. The objective is to enhance patient results and diminish healthcare expenses linked to readmissions and recurrent procedures. This research aims to improve clinical practice, patients' lifespan, and quality of life.
Method: A study was conducted on a cohort of patients who underwent arteriovenous graft surgery from 2017 to 2022. In contrast, secondary patency refers to the period until permanent failure occurs. The grafts' openness and color Doppler ultrasonography were assessed at specific intervals.
Results: The study found that loop grafts had higher secondary patency rates and identified correlations between diabetes, hypertension, and smoking and reduced patency for both types of grafts. The mean primary patency for loop grafts was 11.20 ± 6.04 days, and for straight grafts, it was 8.55 ± 6.30 days. However, loop grafts showed higher mean primary patency; notably, no significant statistical differences were observed between the two types of grafts regarding primary and secondary patency rates.
Conclusion: The study concludes that dialysis patients who undergo loop arteriovenous grafts experience higher primary and secondary patency rates than those who receive straight grafts.
These results emphasize the significance of personalized patient evaluations when selecting vascular access methods. In the upper extremities of individuals undergoing dialysis, loop arteriovenous grafts demonstrate superior patency outcomes compared to straight grafts.
 
                    
                    
                    
                    
                    
                    Original articles:  
Original articles |
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General  Received: 2025/08/26 | Accepted: 2025/10/12 | Published: 2025/10/12