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Introduction: Peripheral intravenous catheters (PIVCs) are the most commonly used vascular access device in hospitalised patients. Yet PIVCs may be complicated by local or systemic infections leading to increased healthcare costs. Chlorhexidine gluconate (CHG)-impregnated dressings may help reduce PIVC-related infectious complications but have not yet been evaluated. We hypothesise an impregnated CHG transparent dressing, in comparison to standard polyurethane dressing, will be safe, effective and cost-effective in protecting against PIVC-related infectious complications and phlebitis., Methods and Analysis: The ProP trial is a multicentre, superiority, randomised clinical and cost-effectiveness trial with internal pilot, conducted across three centres in Australia and France. Patients (adults and children aged ≥6 years) requiring one PIVC for ≥48 hours are eligible. We will exclude patients with emergent PIVCs, known CHG allergy, skin injury at site of insertion or previous trial enrolment. Patients will be randomised to 3M Tegaderm Antimicrobial IV Advanced Securement dressing or standard care group. For the internal pilot, 300 patients will be enrolled to test protocol feasibility (eligibility, recruitment, retention, protocol fidelity, missing data and satisfaction of participants and staff), primary endpoint for internal pilot, assessed by independent data safety monitoring committee. Clinical outcomes will not be reviewed. Following feasibility assessment, the remaining 2624 (1312 per trial arm) patients will be enrolled following the same methods. The primary endpoint is a composite of catheter-related infectious complications and phlebitis. Recruitment began on 3 May 2023., Ethics and Dissemination: The protocol was approved by Ouest I ethic committee in France and by The Queensland Children's Hospital Human Research Ethics Committee in Australia. The findings will be disseminated through presentation at scientific conferences and publication in peer-reviewed journals., Trial Registration Number: NCT05741866., Competing Interests: Competing interests: CMR’s employer (The University of Queensland or Griffith University) has received unrestricted research grants on her behalf from BD, Cardinal Health, Eloquest and consultancy payments from 3M, BD, BBraun, and ITL Biomedical. AU’s employer (The University of Queensland or Griffith University) has received unrestricted research grants or consultancies on her behalf from BD, 3M, Sterile Care and Medline. NMM— Griffith University and The University of Queensland have received on her behalf investigator-initiated research grants or consultancies from Cardinal Health, 3M, Eloquest, Medline and Becton Dickinson. AC has received unrestricted investigator-initiated research grants, paid to her employer (Griffith University), from Cardinal Health, 3 M and Eloquest. TMK’s employer (The University of Queensland or Griffith University) has received unrestricted research grants on her behalf from BD, and consultancy payments from 3M, BD, BBraun, Medical Specialties Australia, and Smiths Medical. OM, BD and JG received funding for congress attendance, and research funding from Becton Dickinson and 3M. JB’s employer (Griffith University) has received unrestricted research grants on his behalf from BD and Navi Technologies, and consultancy payments from 3M, and BD. COB has no conflicts of interest., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Introduction: Short peripheral intravenous catheters (PVCs) are the most frequently used invasive medical devices in hospitals. Unfortunately, PVCs often fail before the end of treatment due to the occurrence of mechanical, vascular or infectious complications, which prolongs hospitalisation and increases healthcare costs and mortality.Prevention of these complications is mainly based on the respect of hygiene rules and the use of biocompatible catheters. In critically ill patients, 2% chlorhexidine-alcohol is superior to 5% povidone iodine-alcohol for skin preparation before central venous and arterial catheters; whether this finding can be extended to PVC inserted in the wards remains speculative. Similarly, the use of new technologies such as catheters designed to minimise blood exposure, zero-reflux needleless connectors, disinfecting caps and flushing PVCs before and after each medication administration to maintain catheter patency are of theoretical interest to prevent PVC failure, but little scientific data support their routine use., Methods and Analysis: The CLEAN 3 study is an open-label, single-centre, randomised, two-by-two factorial trial. One thousand patients visiting our emergency department and requiring hospital admission in the wards will be randomised to one of four strategies according to skin preparation and devices used. The two primary endpoints will be (1) the incidence of infectious complications related to the catheters (colonisation, local infection or bloodstream infection) and (2) the time between catheter insertion and catheter failure defined as any premature removal of PVC before end of treatment, other than for routine replacement., Ethics and Dissemination: This protocol has been approved by an independent ethics committee and will be carried out according to the principles of the Declaration of Helsinki and the Good Clinical Practice guidelines. The results of this study will be disseminated through presentation at scientific conferences and publication in peer-reviewed journals., Trial Registration Number: EudraCT 2018-A02535-50; NCT03757143., Competing Interests: Competing interests: OM received grant support and honoraria for giving lectures from Becton Dickinson., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Introduction: Severe trauma represents the leading cause of mortality worldwide. While 80% of deaths occur within the first 24 hours after trauma, 20% occur later and are mainly due to healthcare-associated infections, including ventilator-associated pneumonia (VAP). Preventing underinflation of the tracheal cuff is recommended to reduce microaspiration, which plays a major role in the pathogenesis of VAP. Automatic devices facilitate the regulation of tracheal cuff pressure, and their implementation has the potential to reduce VAP. The objective of this work is to determine whether continuous regulation of tracheal cuff pressure using a pneumatic device reduces the incidence of VAP compared with intermittent control in severe trauma patients., Methods and Analysis: This multicentre randomised controlled and open-label trial will include patients suffering from severe trauma who are admitted within the first 24 hours, who require invasive mechanical ventilation to longer than 48 hours. Their tracheal cuff pressure will be monitored either once every 8 hours (control group) or continuously using a pneumatic device (intervention group). The primary end point is the proportion of patients that develop VAP in the intensive care unit (ICU) at day 28. The secondary end points include the proportion of patients that develop VAP in the ICU, early (≤7 days) or late (>7 days) VAP, time until the first VAP diagnosis, the number of ventilator-free days and antibiotic-free days, the length of stay in the ICU, the proportion of patients with ventilator-associated events and that die during their ICU stay., Ethics and Dissemination: This protocol has been approved by the ethics committee of Poitiers University Hospital, and will be carried out according to the principles of the Declaration of Helsinki and the Good Clinical Practice guidelines. The results of this study will be disseminated through presentation at scientific conferences and publication in peer-reviewed journals., Trial Registration: Clinical Trials NCT02534974., Competing Interests: Competing interests: None declared., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)