Abstract
Patients receiving maintenance haemodialysis are at risk of catheter-related infections. Up to now, there has been no standardized surveillance tool in Germany to evaluate infection events in haemodialysis outpatients. As such, this study aimed to implement an online-based surveillance tool in outpatient dialysis facilities, and to report the first national surveillance data for haemodialysis patients in Germany from October 2019 until September 2021. Outpatient dialysis facilities reported three types of dialysis-associated infection event (DAIE): bloodstream infections, intravenous antimicrobial starts, and local access site infections. Denominator data were provided by the number of haemodialysis treatments at each facility per month. DAIE rates stratified by vascular access type were calculated. In total, 43 outpatient dialysis facilities reported 723 DAIEs, including 63 bloodstream infections, 439 intravenous antimicrobial starts, and 221 local access site infections. The overall incidence of DAIEs was 0.51 per 1000 dialysis treatments (723/1,413,457) during the surveillance period. The overall incidence of DAIEs was 0.13 per 1000 dialysis treatments among patients with arteriovenous fistulas (AVFs; 126/990,392), 0.41 per 1000 dialysis treatments among patients with arteriovenous grafts (41/99,499), and 1.68 per 1000 dialysis treatments among patients with central venous catheters (CVCs; 535/318,757). The rate ratio of DAIEs between CVC and AVF rates was 13.2 (95% confidence interval 10.9-16.0; P<0.001). These 2-year infection data represent the first standardized data of outpatient dialysis facilities in Germany. Rates of infection were highest among patients with CVCs compared with other vascular access types. This online-based surveillance tool may be helpful to identify effective targets for infection prevention measures in haemodialysis patients.
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