WS7.105 Effect of preoperative arm warming on arterio-venous fistula outcomes
Harris, Sophie Kulkarni, Sachin
Harris, Sophie
Kulkarni, Sachin
Date
2020-12-07
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Abstract
Aims:
Warming the extremity of a newly formed arterio-venous (AV) access is considered to promote vasodilatation and improve patency. However, to date there are no studies to assess whether preoperative warming of the extremity improves patency, which we evaluated in this study.
Methods:
In this prospective pilot study, patients who had preoperative warming along with postoperative warming (Group A) and those who had only postoperative warming (Group B) were enrolled. Between April and October 2019. Primary patency and re-interventions were the primary outcomes.
Results:
35 patients were enrolled (Group A: n=18 [median age 72 years (58-89); M:F = 11:7] and Group B: n=27 [median age 68 years (54-87); M:F = 17:10]). Early primary patency in group A was 94.4% (17/18), and 92.6% in group B (25/27); p=ns. Fistuloplasty was required in 3/17 patients in group A (17.6%) and 4/25 patients in B (16%). One patient in group A re-visited the hospital for minor bleeding that didn't require any intervention.
Conclusions:
Our results demonstrated that preoperative extremity warming is safe and is not inferior to postoperative warming alone. There was trend towards slightly better patency with preoperative warming. Long-term results will help establish whether there is any sustainable benefit.
Citation
Olivier, J., Harris, S., Paravastu, S., & Kulkarni, S. (2023). Effect of preoperative arm warming on arterio-venous fistula outcomes. British Journal of Surgery, 110(Supplement_7), WS7.105. https://doi.org/10.1002/bjs.12069