Repeated Endovascular Interventions Are Worthwhile, Even After Thrombosis, to Maintain Long-Term Use of Autogenous Dialysis Fistulas

OBJECTIVES: Patients often require multiple access re-interventions to improve fistula patency and the overall usable lifespan of autogenous arteriovenous fistula (aAVF). There is no consensus on the appropriate number of re-interventions after which an access should be abandoned and new access placed. We evaluated whether repeated endovascular interventions for failing/failed aAVF are worthwhile or futile.

METHODS: A retrospective review was performed on aAVFs created between 2009-2014. Fistula function was evaluated until January 2017. Functional fistula patency (FFP) was defined as the total time of functional fistula use for hemodialysis, from time of cannulation to time of measurement or fistula abandonment, including all interventions performed to maintain/reestablish patency. Primary outcomes were FFP duration and number of post-dialysis interventions.

RESULTS: The study included 163 patients. Mean age was 67 (SD = 15.03). The only variable statistically different between functional fistulas and abandoned fistulas was obesity (p = 0.03). At the end of the study period, 145 (89.0%) patients continued to have functional fistulas, and 73 (44.8%) patients died, but had functional fistulas at time of death. Median FFP for the functional group was 3.18 years (range 0.01-7.01 years) and median number of interventions was 1 (range 0-13). In 18 patients (11%), the fistula was abandoned, most commonly due to thrombosis (47.1%), followed by infection (23.5%). No fistula was abandoned because of an unacceptable rate of reintervention. Median FFP in the abandoned group was 0.91 years (range 0.03-5.30 years), and median number of interventions was 0 (range of 0-5).

CONCLUSIONS: Through repeated interventions on aAVFs, none of the patients in our study exhausted all hemodialysis access options prior to transplantation, death or loss to follow-up. These results may indicate repeated and/or more frequent revisions do not negatively affect the FFP nor do they increase the overall risk for abandonment of aAVFs.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:55

Enthalten in:

Vascular and endovascular surgery - 55(2021), 8 vom: 01. Nov., Seite 823-830

Sprache:

Englisch

Beteiligte Personen:

Richard, Michele N [VerfasserIn]
Stroever, Stephanie [VerfasserIn]
Dowling, Caitlin [VerfasserIn]
Burton, Timothy [VerfasserIn]
Butler, Amber [VerfasserIn]
Plummer, Dahlia [VerfasserIn]
Dietzek, Alan M [VerfasserIn]

Links:

Volltext

Themen:

Autogenous fistula
Endovascular intervention
Fistula abandonment
Fistula patency
Hemodialysis
Journal Article

Anmerkungen:

Date Completed 10.12.2021

Date Revised 28.04.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1177/15385744211026452

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM327430052