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Improved methods for venous access: the Port-A-Cath, a totally implanted catheter system.
Summary
The Port-A-Cath (PAC) system offers a safe and reliable vascular access solution. This study found low complication rates, with catheter occlusion being the main issue, particularly with small-bore catheters.
Area of Science:
- Medical Devices
- Vascular Surgery
- Oncology Support
Background:
- Totally implanted vascular access systems are crucial for long-term intravenous therapy.
- The Port-A-Cath (PAC) is a widely used device, but its long-term performance and complication rates require ongoing evaluation.
- Different catheter bore sizes may influence device performance and complication profiles.
Purpose of the Study:
- To prospectively evaluate the performance and long-term complication rates of the Port-A-Cath (PAC) vascular access system.
- To compare the outcomes of small-bore (SB) and large-bore (LB) Port-A-Cath catheters.
- To assess the effectiveness of a strict catheter care protocol in minimizing complications.
Main Methods:
- Prospective evaluation of Port-A-Cath systems with two catheter styles: small-bore (0.51-mm) and large-bore (1.02-mm).
- Implementation of a strict catheter care protocol.
- Monitoring for complications including extravasation, infection, occlusion, and device integrity over 7,240 days of implantation and 1,435 days of use.
Main Results:
- The Port-A-Cath system demonstrated excellent performance with no significant extravasation, skin necrosis, hematoma, or device-related infections.
- Overall complication rates were low: catheter occlusion (21.5%) and possible infection (3.1%).
- Catheter occlusions were predominantly observed in the small-bore catheter group (43.8%), especially in patients receiving continuous infusion chemotherapy or total parenteral nutrition.
Conclusions:
- The Port-A-Cath system provides a safe and reliable method for venous access in patients requiring intermittent or prolonged intravenous therapy.
- A regular 30-day flushing schedule effectively maintained Port-A-Cath patency, offering an advantage over daily maintenance for external catheters.
- While generally safe, careful consideration of catheter bore size and patient's therapy regimen is important to mitigate occlusion risks.