The efficacy of midline catheters-a prospective, randomized, active-controlled study

Area of Science:

• Vascular Access Management
• Medical Device Efficacy
• Clinical Interventions

Background:

• Intravenous (IV) therapy exceeding five days often necessitates complex vascular access.
• Conventional strategies involve peripheral venous catheters (PVCs) and central venous catheters (CVCs), each with associated challenges.
• Newer midline catheters offer a potential alternative for prolonged IV access.

Purpose of the Study:

• To evaluate the efficacy of a midline catheter-based IV strategy compared to a conventional approach.
• To determine if midline catheters can reduce the need for CVC insertion or multiple PVCs.
• To assess catheter dwell times and reasons for removal in prolonged IV therapy.

Main Methods:

• Prospective, randomized, controlled study design.
• Patients requiring >5 days of IV therapy were randomized to midline or conventional strategies.
• Primary endpoint: composite of CVC insertion or ≥4 PVC insertions; secondary: dwell times, removal reasons.

Main Results:

• Fewer patients in the midline group required CVC insertion or ≥4 PVCs (21% vs. 66%, p<0.001).
• The number needed to treat was 2.2, indicating significant benefit.
• Median catheter dwell time was longer in the midline group (7 days vs. 4 days, p=0.002).

Conclusions:

• A midline catheter strategy is an effective alternative for patients needing IV therapy >5 days.
• This approach reduces the requirement for more invasive CVCs or repeated PVC insertions.
• Midline catheters offer prolonged dwell times, improving patient management.