Long-term central venous catheters: size and location do matter

Area of Science:

• Vascular access procedures
• Medical device placement
• Patient safety in interventional radiology

Background:

• Optimal placement strategies for long-term central venous catheters, specifically subclavian vein catheterization, remain incompletely defined.
• Factors such as side of insertion (right vs. left) and catheter size require further analysis.

Purpose of the Study:

• To evaluate the impact of subclavian vein catheterization side and catheter size on technical difficulty and complications.
• To identify optimal practices for long-term central catheter placement.

Main Methods:

• Retrospective review of 502 consecutive central venous catheter placements, with detailed analysis of 230 subclavian vein tunneled catheters.
• Technical difficulties were systematically defined and recorded, including arterial puncture, malposition, and access site issues.

Main Results:

• Overall complication rate was low (1%), with technical difficulties in 15% of cases.
• Larger, triple-lumen catheters showed significantly higher difficulty rates (31%) compared to smaller, single-lumen catheters (11%).
• Right subclavian placement had a higher technical difficulty rate (24.4%) than left subclavian placement (10.4%).

Conclusions:

• Left subclavian vein catheterization is associated with fewer technical difficulties.
• Utilizing the smallest feasible catheter size is recommended to minimize procedural challenges.