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Aspirex Thrombectomy in Occluded Dialysis Access: A Retrospective Study
Jules Dyer1, Joao Rosa2, Menka Chachlani3
1Department of Radiology, New Cross Hospital, Wolverhampton, West Midlands, WV10 0QP, UK. Jules.Dyer@nhs.net.
Cardiovascular and Interventional Radiology
|April 21, 2016
Summary
The Straub Aspirex device effectively removes thrombus from occluded renal dialysis access, achieving high initial success rates and comparable patency to other mechanical thrombectomy devices.
Area of Science:
- Nephrology
- Vascular Surgery
- Interventional Radiology
Background:
- Occluded renal dialysis access fistulae significantly impede treatment.
- Salvage options are crucial for maintaining hemodialysis access.
- Percutaneous mechanical thrombectomy (PMT) offers a minimally invasive approach.
Purpose of the Study:
- To evaluate the outcomes of the Straub Aspirex device in salvaging occluded renal dialysis access.
- This is the first study to present Aspirex device outcomes for this indication.
Main Methods:
- Retrospective study of 19 patients undergoing 27 procedures between 2010-2014.
- Utilized the Aspirex device for percutaneous mechanical thrombectomy (PMT).
- Assessed access survival using Kaplan-Meier and Cox proportional hazards models.
Main Results:
- 100% successful thrombus removal achieved.
- 81.5% initial clinical success rate.
- Primary patency rates of 53.6% (30 days), 44.3% (90 days), and 33% (480 days).
- No major complications reported.
Conclusions:
- The Aspirex device demonstrates patency and complication rates similar to other PMT devices.
- No studied covariates significantly impacted outcomes.
- Aspirex is a safe and effective option for salvage of occluded renal dialysis access.
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