1. Predictors associated with early and late restenosis of arteriovenous fistulas and grafts after percutaneous transluminal angiography
- Author
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Yiming Tao, Feng Yu, Zhiming Ye, Li Zhang, Wenhao Zhang, Jihua Hou, Xinfu Xie, Quan Zheng, Bingying Xie, and Zhonglin Feng
- Subjects
medicine.medical_specialty ,Percutaneous ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,030232 urology & nephrology ,General Medicine ,medicine.disease ,030218 nuclear medicine & medical imaging ,Lesion ,03 medical and health sciences ,Stenosis ,0302 clinical medicine ,Restenosis ,Internal medicine ,Diabetes mellitus ,Angiography ,medicine ,Cardiology ,Original Article ,Hemodialysis ,medicine.symptom ,business ,Survival analysis - Abstract
BACKGROUND: The objective of this study was to assess postintervention patency and analyze the predictive factors associated with early and late restenosis after intervention in hemodialysis arteriovenous fistulas (AVF) and arteriovenous grafts (AVG). METHODS: This study retrospectively analyzed 284 hemodialysis patients who underwent percutaneous transluminal angioplasty (PTA) due to AVF and AVG stenosis. A total of 350 PTA procedures were performed. Clinical, anatomical, biochemical, and technical variables were analyzed. Using univariate and multivariate analyses, we assessed the postintervention patency of PTA by follow-up, and identified the predictive factors taking into account competing risks. RESULTS: Postintervention patency rates at 3, 6, 12, and 24 months were 86.5%, 66.4%, 42.6%, and 29.8%, respectively, with a median patency duration of 11±0.71 months. Kaplan-Meier analysis showed that the patency rate of the AVF group (n=271) was dramatically higher than the AVG group (n=79) at 3, 6, and 12 months after PTA, respectively (88.9% vs. 78.5%, 69.0% vs. 57.4%, 48.8% vs. 20.0%, P
- Published
- 2021