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Study of access recirculation in reversed temporary indwelling catheters
Le Journal CANNT = CANNT Journal : the Journal of the Canadian Association of Nephrology Nurses and Technicians
|January 1, 1994
Summary
Reversing ports on temporary indwelling catheters for hemodialysis significantly increases blood recirculation. Extending treatment time by 20 minutes for reversed ports ensures dialysis prescription efficiency.
Area of Science:
- Nephrology
- Vascular Access
Background:
- Hemodialysis relies on efficient blood flow through temporary indwelling catheters.
- Catheter port orientation can impact treatment efficacy.
- Concerns arose regarding compromised dialysis prescriptions due to reversed catheter ports.
Purpose of the Study:
- To investigate the impact of reversed catheter ports on access recirculation in hemodialysis patients.
- To quantify the change in recirculation percentage with reversed ports.
Main Methods:
- A study was conducted over two weeks involving 25 hemodialysis patients.
- Access recirculation was measured with normal and reversed catheter port configurations.
- Approximately six dialysis sessions were analyzed per patient.
Main Results:
- Normal port connection showed 2.3%-4.1% recirculation.
- Reversed ports led to a significant increase in recirculation to 12%.
- 42% of studied patients experienced reversed ports during the observation period.
Conclusions:
- Reversal of temporary indwelling catheter ports increases blood recirculation during hemodialysis.
- A policy adjustment now mandates a 20-minute extension for treatments with reversed ports.
- This extension aims to maintain the prescribed dialysis efficiency despite port reversal.