Validation of arteriovenous access stage (AVAS) classification: a prospective, international multicentre study.

ABSTRACT:

Background

The arteriovenous access stage (AVAS) classification provides evaluation of upper extremity vessels for vascular access (VA) suitability. It divides patients into classes within three main groups: suitable for native fistula (AVAS1) or prosthetic graft (AVAS2), and patients not suitable for conventional native or prosthetic VA (AVAS3). We validated this system on a prospective dataset.

Methods

A prospective, international observational study (NCT04796558) involved 11 centres from 8 countries. Patient recruitment was from March 2021 to January 2024. Demographic data, risk factors, vessels parameters, VA types, AVAS class and early VA failure were collected. Percentage agreement was used to assess predictive ability of AVAS (comparison of AVAS and created VA) and co

SUBMITTER: Lawrie K 

PROVIDER: S-EPMC11426276 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature