Arteriovenous Fistula Maturation Failure in a Large Cohort of Hemodialysis Patients in the Netherlands

Bram M Voorzaat, Koen E A van der Bogt, Cynthia J Janmaat, Jan van Schaik, Friedo W Dekker, Joris I Rotmans, Dutch Vascular Access Study Group, Bram M Voorzaat, Koen E A van der Bogt, Cynthia J Janmaat, Jan van Schaik, Friedo W Dekker, Joris I Rotmans, Liffert Vogt, Laurens Huisman, Bas A Th F Gabreëls, Frans T J Boereboom, Irene M van der Meer, Randolph G S van Eps, Daniël Eefting, Marcel C Weijmer, Roos C van Nieuwenhuizen, Alferso Abrahams, Raechel J Toorop, Bram M Voorzaat, Koen E A van der Bogt, Cynthia J Janmaat, Jan van Schaik, Friedo W Dekker, Joris I Rotmans, Dutch Vascular Access Study Group, Bram M Voorzaat, Koen E A van der Bogt, Cynthia J Janmaat, Jan van Schaik, Friedo W Dekker, Joris I Rotmans, Liffert Vogt, Laurens Huisman, Bas A Th F Gabreëls, Frans T J Boereboom, Irene M van der Meer, Randolph G S van Eps, Daniël Eefting, Marcel C Weijmer, Roos C van Nieuwenhuizen, Alferso Abrahams, Raechel J Toorop

Abstract

Objectives: Radiocephalic arteriovenous fistulas (RCAVF) are the preferred vascular access (VA) for hemodialysis (HD). Cohort studies from North America revealed that nonmaturation is a significant disadvantage of RCAVFs compared to other VAs.

Design: This present retrospective study describes the incidence of nonmaturation of AVFs and functional failure of arteriovenous grafts (AVG) in a multicentre cohort in the Netherlands and attempts to create a prediction model for nonmaturation of RCAVFs. Furthermore, the efficacy of interventions to promote maturation as well as the variability between hemodialysis centers was evaluated.

Materials: Medical records from 8 hospitals from 1997 to 2016 were retrospectively evaluated for VA type, maturation/primary success and demographics and comorbidities.

Methods: A prediction model was created for RCAVF nonmaturation using multivariate logistic regression analysis, selecting significant predictors using backward selection. Discrimination and calibration of the model were assessed.

Results: 1383 AVFs and 273 AVGs were included in 1221 patients. Overall nonmaturation was 24% for RCAVFs, and 11% for upper arm AVFs. The functional failure rate for AVGs was 6%. The nonmaturation rate of contralateral RCAVFs after failure of an RCAVF was 22%. Procedures to improve RCAVF maturation were successful in 98/142 cases (69%). Predictors for nonmaturation were female gender, peripheral vascular disease, cerebrovascular disease and a cephalic vein diameter <2.5 mm, but the prediction model lacked sensitivity and specificity predicting individual RCAVF nonmaturation (C-statistic 0.629).

Conclusion: Nonmaturation rates are highest for RCAVFs, but nonmaturation could not be predicted with demographic parameters.

Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
Flow chart demonstrating exclusion of VAs from analysis
Fig. 2
Fig. 2
Time until first cannulation in patients prevalent on HD at the time of VA creation
Fig. 3
Fig. 3
Calibration of the prediction model for nonmaturation of first RCAVFs

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