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• W2028090325 abstract "ObjectiveUse of the Amplatzer vascular plug (AVP; St. Jude Medical Inc, St. Paul, Minn) for percutaneous occlusion of a hemodialysis arteriovenous access (AVA) is an emerging practice, and only a few reports by radiologists have been published. We report here a multidisciplinary experience of this technique not only for AVA occlusion but also for flow reduction in selected patients.MethodsThis preliminary study includes a series of 20 plugs of different generations (I, II, and IV) used in 19 hemodialysis patients (two children, 17 adults). Of these, 15 AVAs were autologous fistulas located at the elbow, 4 were autologous forearm fistulas, and 1 was a brachial-basilic polytetrafluoroethylene graft. AVP deployment was through a 4F to 8F sheath, with oversizing from 30% to 50% to reduce the risk of migration. AVA occlusion (n = 14), by placing the AVP in the vein at its origin, was performed for central vein occlusion after unsuccessful percutaneous recanalization (n = 4), high flow (n = 2), hand ischemia (n = 3), successful kidney transplant (n = 1), and brachial-basilic or brachial-brachial fistula second-stage superficialization technical failure (n = 4). Vein/polytetrafluoroethylene grafts were not removed. AVA flow reduction (n = 6), by placing the AVP in the radial artery, was performed for well-tolerated high flow (n = 3) or high flow associated with distal ischemia (n = 3). All patients underwent a postoperative evaluation at 6-month intervals that included a clinical examination and duplex scan.ResultsAVA occlusion or flow reduction was successfully achieved in all patients. Ischemia persisted in one patient and a revascularization with a distal bypass was necessary. Mean follow-up was 1.2 ± 0.8 years (range, 2 months-2.9 years). No plug migration, access revascularization, or other complication was observed.ConclusionsThe results of this short preliminary study suggest that plug insertion for occlusion or for flow reduction in a hemodialysis AVA constitutes a reasonable alternative to coil insertion or to open surgery in selected patients. Use of the Amplatzer vascular plug (AVP; St. Jude Medical Inc, St. Paul, Minn) for percutaneous occlusion of a hemodialysis arteriovenous access (AVA) is an emerging practice, and only a few reports by radiologists have been published. We report here a multidisciplinary experience of this technique not only for AVA occlusion but also for flow reduction in selected patients. This preliminary study includes a series of 20 plugs of different generations (I, II, and IV) used in 19 hemodialysis patients (two children, 17 adults). Of these, 15 AVAs were autologous fistulas located at the elbow, 4 were autologous forearm fistulas, and 1 was a brachial-basilic polytetrafluoroethylene graft. AVP deployment was through a 4F to 8F sheath, with oversizing from 30% to 50% to reduce the risk of migration. AVA occlusion (n = 14), by placing the AVP in the vein at its origin, was performed for central vein occlusion after unsuccessful percutaneous recanalization (n = 4), high flow (n = 2), hand ischemia (n = 3), successful kidney transplant (n = 1), and brachial-basilic or brachial-brachial fistula second-stage superficialization technical failure (n = 4). Vein/polytetrafluoroethylene grafts were not removed. AVA flow reduction (n = 6), by placing the AVP in the radial artery, was performed for well-tolerated high flow (n = 3) or high flow associated with distal ischemia (n = 3). All patients underwent a postoperative evaluation at 6-month intervals that included a clinical examination and duplex scan. AVA occlusion or flow reduction was successfully achieved in all patients. Ischemia persisted in one patient and a revascularization with a distal bypass was necessary. Mean follow-up was 1.2 ± 0.8 years (range, 2 months-2.9 years). No plug migration, access revascularization, or other complication was observed. The results of this short preliminary study suggest that plug insertion for occlusion or for flow reduction in a hemodialysis AVA constitutes a reasonable alternative to coil insertion or to open surgery in selected patients." @default.
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• W2028090325 date "2014-01-01" @default.
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• W2028090325 title "Amplatzer vascular plug for occlusion or flow reduction of hemodialysis arteriovenous access" @default.
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• W2028090325 doi "https://doi.org/10.1016/j.jvs.2013.07.015" @default.
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