ArticleThe journal of vascular access2023
The outcomes of a novel two-stage proximal brachial artery to proximal basilic/brachial vein arteriovenous graft extension for dialysis access.
Article in The journal of vascular access, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWe describe a technique to mature a basilic/brachial vein in the mid-arm in preparation for a second stage loop proximal brachial artery to basilic/brachial vein arteriovenous graft (BBAVG). This can occur after a failed basilic/brachial vein transposition or a lack of adequate veins in the distal arm. This allows a mature vein to be used in an end-to-end configuration as an outflow to a BBAVG while preserving proximal vessels for the future.
methodsThis single-center retrospective study was performed from 2015 to 2021, including 104 AVG patients divided into three groups: (1) Patients who failed a basilic vein transposition and had an enlarged vein suitable for an AVG outflow; (2) Patients who had a small caliber basilic/brachial vein after the transposition, requiring a mid-arm brachial artery to brachial/basilic arteriovenous fistula (AVF) creation with a subsequent AVG extension; (3) and lastly, patients who had no distal arm veins available and required a primary brachial artery to basilic/brachial AVF with AVG extension. A survival analysis was performed looking at time to loss of primary and secondary patency, calculated with Kaplan-Meier estimates and Cox regression models adjusted for covariates.
resultsThe median follow-up time was 11 months (IQ = 11-30 months). The survival analysis showed 28% lost primary patency at a median time of 9 months, and 14% lost secondary patency at a median time of 61 months. Overall secondary patency of the vascular access measured at 12 months was 85.6%. Loss of primary (
conclusionsOur results suggest that the graft extension technique using a mature vein from a previous fistula can result in reliable and durable access. This is important for patients with limited access for hemodialysis, as the axillary vein is preserved for future use if needed.
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