Biofilm-induced Antimicrobial Resistance RIsk ERadication in Critical Care Central Venous Catheters (BARRIER)

Centre Hospitalier Universitaire de Nīmes

Status

Not yet enrolling

Conditions

Infection Prevention

Biofilms

Catheter-Related Infections

Treatments

Other: Microbial analysis of catheter biofilm

Study type

Observational

Funder types

Other

Identifiers

NCT07546994

NIMAO/2025-2/BN-01

Details and patient eligibility

About

Central venous catheter (CVC) infections are a frequent and serious nosocomial complication in critical care, leading to increased morbidity, mortality, and costs. The pathophysiology of these infections relies on the formation of a biofilm, an organized microbial structure that confers exceptional tolerance to anti-infectives and the immune system. However, data concerning the characteristics of the in vivo biofilm (kinetics, composition, endo- vs. extraluminal organization) on central venous catheters in intensive care patients are very limited, hindering the development of effective and targeted prevention strategies.

The main aim of this study is to quantify the density and describe the spatial distribution (extra- and intraluminal compartments) of the biofilm on infected or colonized central venous catheters, prospectively collected from patients in the critical care units.

Enrollment

150 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Central venous catheters (conventional central venous lines, dialysis catheters, PICC lines) showing positive microbiological culture taken from adult patients in the critical care units (intensive care units, post-operative intensive care units and post-resuscitation intensive care units)
Patient consent is free, informed, and non-opposition, provided after delivery of an information letter and oral explanation.

Exclusion criteria