Normal Saline Push–Pause Advantage for Implanted Port Patency: A Comparative Study

Implanted ports are essential for long-term vascular access. However, port occlusions can lead to treatment delays and reduced quality of life. Concerns about the safety of heparin have led to the exploration of safer alternatives. This study aimed to assess the effectiveness of 20 ml normal saline using the push-pause flush technique, compared to heparin, in preventing implanted port occlusions. A cohort study of 538 patients with implanted ports was conducted over five months. Data on demographics, port type, locking solution, occlusions, and interventions were collected. A transition from heparin-based flushing to normal saline-based flushing occurred during the study. Preliminary analysis showed low overall port occlusion rates, regardless of the locking solution used. A Fisher's exact test revealed no significant association between the type of locking solution and port occlusion. Interim findings suggest that when used with the pulsatile flush technique, normal saline may be as effective as heparin in maintaining port patency. Additional research is needed to assess the long-term implications of using saline as a locking solution.