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ORIGINAL ARTICLE VASCULAR ACCESS Free access
International Angiology 2019 April;38(2):143-9
DOI: 10.23736/S0392-9590.19.04064-1
Copyright © 2019 EDIZIONI MINERVA MEDICA
lingua: Inglese
Hybrid salvage of thrombosed dialysis access grafts
Haitham ALI ✉, Khaled ATTALLAH, Khaled AWAD, Bahgat THABET
Department of Vascular and Endovascular Surgery, Assiut University Hospitals, Assiut, Egypt
BACKGROUND: To report our experience and evaluate the results of a hybrid procedure comprising of surgical thrombectomy and adjuvant high pressure balloon angioplasty for management of thrombosed arteriovenous grafts (AVGs) with underlying venous anastomotic stenosis.
METHODS: Between January 2015 and June 2017, 148 patients with first-time thrombosis of AVGs were considered for treatment with surgical thrombectomy followed by high pressure balloon angioplasty of the underlying venous anastomotic lesions. Monitoring and surveillance was subsequently performed using clinical and hemodialysis criteria to detect a failing/failed access. Primary, assisted primary, and secondary patency rates were calculated using Kaplan-Meier analysis.
RESULTS: This hybrid procedure was technically successful in 135 cases (91.2%) and clinically successful in 131 cases (88.5%). The postintervention primary patency rate of the target lesions was 68.2%, 52.4%, and 44.2% at 3, 6, and 12 months, respectively. Endovascular re-interventions increased significantly the postintervention assisted primary patency to 79.1%, 71.9%, and 66.8% (P=0.0004), and the postintervention secondary patency to 86.5%, 82.2%, and 78.6% (P<0.0001) at the same time points, respectively.
CONCLUSIONS: Hybrid salvage of thrombosed AVGs using high pressure balloon angioplasty of the venous anastomotic stenosis following surgical thrombectomy by Fogarty catheter is a highly successful and safe procedure, with acceptable short-term primary patency. The need for repeated interventions demonstrates the necessity of continuous graft monitoring and surveillance to improve both assisted primary, and secondary patency rates.
KEY WORDS: Thrombosis; Thrombectomy; Angioplasty, balloon