Dressing: Frequency of Change and Evaluation of an Antiseptic-Impregnated Catheter Dressing in ICU Patients (DRESSING)

May 23, 2016 updated by: University Hospital, Grenoble

Dressing: Comparison of 3-day and 7-day Catheter Dressing Frequency and Efficacy of Antiseptic Impregnated Dressing in Preventing Catheter-related Infection in ICU

The purpose of this study is to determine whether a catheter dressing every 7th day is not inferior to a catheter dressing every 3 days and if Chlorhexidine impregnated sponges are effective in preventing catheter-related infections in ICUs.

Study Overview

Detailed Description

Central venous catheters (CVCs) are often required for the care of patient admitted to the intensive care unit (ICU), and are now indispensable in modern-day medical practice. In the United States, it is estimated that 15 million CVC days occur each year in the ICU , and that approximately 80,000 CVC-associated bloodstream infection (BSIs) occur each year [2]. Data from the NNIS system indicate that approximately 40% of the BSIs are associated with a CVC in the ICU. This definition, however, include CVC-related BSIs (CRBSIs) and primary BSIs. In other multicenter surveys, primary BSIs are the leading cause of BSIs (30-35%), followed by CRBSIs (20-30%), and BSIs originating from pneumonia (20%) .

The attributable mortality of CRBSIs remains debated. It ranges from no increase in mortality in some studies, up to an attributable mortality of 35% in others. In studies adjusting for severity of illness, attributable mortality ranged between 0 and 11.5%. The excess ICU length of stay is estimated 9-12 days.

The cost of CRBSIs is therefore substantial, and efforts are required to reduce the incidence of theses infections. Several publications suggested that multiple strategies should be implemented concomitantly. Besides the critical importance of staff education, technology brings new materials that could decrease the risk for CRBSI. Several studies have demonstrated that antimicrobial- or antiseptic-impregnated CVCs can decrease CRBSIs in the ICU setting. Furthermore, cost-benefit analysis have suggested that the use of impregnated CVCs was beneficial

The recent CDC Guidelines for the prevention of intravascular catheter-related infections recommend the use of antimicrobial- or antiseptic-impregnated CVCs in patients whose CVC is expected to remain in place for more than 5 days, and in ICUs where CRBSI rate remains above the benchmark rates, despite implementing a comprehensive strategy. This restricted recommended use is explained by the concern for emergence of resistance, the risk of adverse effects and the costs of these materials.

CRBSI rates in France could be lower than those observed in the United States. Data from two surveillance networks indicate that the rates of CRBSI range between 1 and 2 CRBSI per 1000 CVC days . Given these low rates, it is not clear that antimicrobial- or antiseptic-impregnated CVCs would be cost-effective.

Since most organisms responsible for CRBSI originate from insertion site in short-term CVC, there was a rationale to try to decrease bacterial colonization at cutaneous insertion site. Among the other new materials under development, a chlorhexidine-impregnated sponge (Biopatch TM), to be placed over the site of catheter insertion, has been proposed. In a prospective, controlled, bicenter, randomized, non blinded study, dressing changes every other day (control group) was compared to dressing changes every 7 days with Biopatch (Biopatch group) (Maki and al., ICAAC 2000). 1,401 lines (either CVCs, peripheral arterial catheters or pulmonary artery catheters) were included in 589 patients. Both groups of patients were comparable. Using proportional hazard models, both CVC colonization and CRBSI were significantly reduced in the Biopatch group, from 29% to 16% (HR, 0.62) for catheter colonization, and from 3.3% to 1.2% (HR, 0.38) for CRBSI.

This study demonstrated a significant reduction of CRBSI using Biopatch. Given the results presented at the ICAAC sessions, there is some concern, however, about the validity of the protective effect of the Biopatch.

Firstly, the intervention group associated Biopatch and the extension of the time between dressing changes, from 2 to 7 days. Preliminary data from cancer patients suggest that time between dressing changes could be extended. In a randomized study, Benhamou et al have recently compared a 4-day to a 15-day catheter-dressing change frequency in children undergoing chemotherapy. They have shown that skin cultures (27 vs 23%) and bloodstream infections (11 vs 13%) rates are not different between the 4-day and the 15-day groups. It is therefore unclear that the reduction of CRBSI observed in the Biopatch group was only due to the Biopatch.

Secondly, the control group in the Maki's study did not use a "placebo", i.e. a sponge not impregnated with chlorhexidine. The study was therefore not blinded for the ICU staff. It is strongly recommended to examine the catheter insertion site daily for local inflammatory signs. Biopatch impede to monitor the insertion site, with a potential for underestimation of local infections signs in these patients. It is possible that daily examination of the insertion site in the control group would conduct to remove the CVC more frequently in these patients, with a potential for higher rate of colonization. In addition, if a study is not blinded, it is useful for the validity of the results that a group of investigators, blinded to the randomized group, review the medical chart to classify catheter infection.

Thirdly, the rate if CRBSI was rather high in the control group (4.45 per 1000 line days). It is not certain that the benefit of Biopatch will be the same in ICUs with lower rates of CRBSI.

The aim of this study is therefore to evaluate the impact of Biopatch, and the impact of dressing changes (every 3 or 7 days) on the reduction of CVC infection

Study Type

Interventional

Enrollment (Actual)

1600

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Grenoble, France, 38043
        • grenoble university hospital (medical ICU and surgical ICU)
      • Paris, France, 75014
        • Saint Joseph Hospital
      • Paris, France, 75018
        • University Hospital Beaujon
      • Paris, France, 75018
        • University hospital Bichat Claude Bernard

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients older than 18 years
  • with at least a central venous catheter or an arterial catheter
  • whatever the first or subsequent CVC in a same patient
  • in any site of insertion (sub-clavian, jugular or femoral)
  • whatever le CVC is tunnelled or not
  • CVC inserted in the study ICU or immediately before by the intensisvist in the emergency unit or in the operative room,
  • CVC inserted under maximal barrier precautions

Exclusion Criteria:

  • pulmonary artery catheter, haemodialysis/haemodiafiltration CVCs
  • known allergy to chlorhexidine
  • CVC not inserted under maximal barrier precautions
  • Expected duration of CVC for less than 48 hours
  • CVC inserted under emergency conditions

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 3-days dressing frequency/CHX sponge

Interventions:

Device: 'Chlorhexidine Sponge (Biopatch TM)' on the insertion site

dressing with chlorexidrine sponge versus dressing without chlorexidrine sponge
Experimental: 7-days dressing frequency/CHX sponge

Interventions:

Behavioural: 7-day catheter dressing frequency Device: 'Chlorhexidine Sponge (Biopatch TM)' on the insertion site

dressing with chlorexidrine sponge versus dressing without chlorexidrine sponge
dressing changes every 7 days versus every classical change every 3 days
No Intervention: 3-days dressing frequency/No CHX sponge
No intervention, classical protocol of dressing frequency every 3-days and no other device
Experimental: 7-days dressing change/No CHX sponge
Interventions:Behavioural: 7-day catheter dressing frequency
dressing changes every 7 days versus every classical change every 3 days

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Systemic catheter related sepsis as defined by a blinded expert panels to unmask differences between Chlorhexidine dressings and no Chlorhexidine dressings
Time Frame: 48 hours
48 hours
Significant catheter culture >=103 cfu/ml for non inferiority between 7 days and 3 day catheter-dressing frequencies
Time Frame: 48 hours
48 hours

Secondary Outcome Measures

Outcome Measure
Time Frame
catheter related septicemia
Time Frame: 48 hours
48 hours
cutaneous allergy
Time Frame: 24 hours
24 hours
cost
Time Frame: within the 60 days after catheter insertion
within the 60 days after catheter insertion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: jean-francois Timsit, University Hospital, Grenoble
  • Study Chair: jean-christophe Lucet, MD, University hospital Bichat, Paris, France

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2007

Primary Completion (Actual)

June 1, 2008

Study Completion (Actual)

June 1, 2008

Study Registration Dates

First Submitted

December 28, 2006

First Submitted That Met QC Criteria

December 28, 2006

First Posted (Estimate)

December 29, 2006

Study Record Updates

Last Update Posted (Estimate)

May 24, 2016

Last Update Submitted That Met QC Criteria

May 23, 2016

Last Verified

June 1, 2008

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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