ENDOVASCULAR TREATMENT IN NATIVE HEMODIALYSIS AV FISTULA DYSFUNCTIONS, A SINGLE-CENTER EXPERIENCE

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Kırıkkale Üniversitesi Tıp Fakültesi Dergisi
Cilt: 27 Sayı: 3
ENDOVASCULAR TREATMENT IN NATIVE HEMODIALYSIS AV FISTULA DYSFUNCTIONS, A SINGLE-CENTER EXPERIENCE

ENDOVASCULAR TREATMENT IN NATIVE HEMODIALYSIS AV FISTULA DYSFUNCTIONS, A SINGLE-CENTER EXPERIENCE

Pages : 355-359

View : 25 | Download : 98

Publication Date : 2025-12-25

Article Type : Research Paper

Abstract :Objective: This study aimed to present the procedure features, technical success, short-term patency rates, and complications in patients who underwent endovascular treatment due to native arteriovenous fistula failure or insufficient dialysis. Material and Methods: Between 2012 and 2018, 114 procedures were performed on 96 patients (54 males, 42 females) aged 26-86 years (mean: 58.5 years) who were treated percutaneously for native dialysis fistula dysfunction. AVF characteristics, stenosis/occlusion location, balloon or stent size, technical success, complications, and primary patency rates at 6 and 12 months were recorded. Results: Radiocephalic fistulas (83.4%) were the most common type treated. Percutaneous transluminal angioplasty (PTA) was performed alone (77.2%) or with other procedures in all patients with stenotic or occluded segments. A stent was placed in 5 patients due to residual stenosis. t-PA infusion via a thrombolytic catheter was performed in 16 patients, and mechanical aspiration in 5 patients where PTA alone would not suffice due to thrombus burden. The technical success rate of the endovascular treatments was 92.7%, with a complication rate of 3.1%. The median primary patency duration was 187 days, with primary patency rates of 67.5% and 58.5% at 6 and 12 months, respectively. Conclusion: AVF is the first choice of vascular access in hemodialysis patients. However, most AVFs require endovascular intervention due to stenosis and/or occlusions developing in one or more segments over time. Interventional procedures can be performed effectively and safely, with high technical success and low complication rates in the treatment of native AVF dysfunction.
Keywords : Arteriyovenöz fistül, balon anjiyoplasti, endovasküler prosedürler, stentler

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