• Ilan Rozenberg, Sydney Benchetrit, Tali Zitman-Gal, Moanis Ajaj, Maysam Shehab, Naomi Nacasch, and Keren Cohen-Hagai.
• Department of Nephrology and Hypertension, Meir Medical Center, Kfar Saba, Israel.
• Isr Med Assoc J. 2024 Sep 1; 26 (8): 508513508-513.

BackgroundHemodialysis requires reliable, recurrent access to the circulatory system. Central venous tunneled dialysis catheters (TDC) are frequently used for patients receiving hemodialysis as a bridge to permanent vascular access or as a final option. TDC are prone to complications such as infection and dysfunction.ObjectivesTo assess the prevalence and predictors of TDC dysfunction in a cohort of chronic hemodialysis patients.MethodsThis single-center, retrospective study was based on data from an electronic database of chronic hemodialysis patients during 5 years of follow-up.ResultsA total of 625 TDC were inserted in 361 patients, of which 234 (37.4%) were replaced due to dysfunction. The main insertion site was the right internal jugular vein. Diabetes mellitus was an important predictor of TDC dysfunction and was significantly correlated with TDC extraction. Chronic anticoagulation and antiplatelet treatment did not affect the rate of TDC dysfunction or replacement.ConclusionsTDC use for chronic dialysis patients is increasing and dysfunction is a major problem. In our study, we highlighted the high prevalence of TDC dysfunction and the need for further research to improve hemodialysis access as well as TDC patency and function.

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