Effect of Timing of Thrombectomy on Survival of Thrombosed Arteriovenous Hemodialysis Grafts

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Abstract

Background:

The use of an arteriovenous (AV) graft for hemodialysis is associated with a relatively high rate of thrombosis. Unfortunately, the urgent thrombectomy is not always readily available. Our aim was to investigate a possible association between the timing of thrombectomy and the patency rates of AV grafts.

Methods:

A retrospective single-center study on patients who underwent thrombectomy of clotted AV grafts was conducted. According to the time of thrombectomy, all patients were divided into 4 groups.

Results:

Primary graft patency at 6 months after thrombectomy was 28.3%, with no significant difference between the study groups (P = .161). Secondary graft patency at 6 months was significantly worse in the group that underwent thrombectomy between the third and fifth days than in the whole cohort: 15.4% versus 45.6% (P = .038).

Conclusions:

Timing of thrombectomy of a clotted AV graft may have a significant impact on the graft survival.

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