![]() ![]() Yi et al 23examined predictive risk factors for thrombus formation in patients with PICCs using ultrasound. Zochios et al 22 concluded that larger, multi-lumen PICCs demonstrated a higher incidence of thrombosis due to turbulence and restricted blood flow. The number of lumens and the size of the catheter have been described as risk factors for thrombus formation 21. Anticoagulation can be initiated, preventing further complications. Not all occlusions lead to upper extremity venous thrombosis (UEVT), and thrombotic occlusions can be treated with antithrombotic agents, while UEVT is treated symptomatically or with catheter removal. ![]() The literature describes occlusion rates in PICCs and links them to the number of lumens selected, reporting occlusion rates ranging from 7% to 34%, with fibrin sheath formation being a common cause of mechanical occlusion 20. Depending on the clinical situation, preference should be given to single-lumen devices as outlined in clinical practice guidelines 16-19. These findings have prompted a greater focus on ensuring appropriate use of the PICC in hospitalised patients, including recommendations on the “appropriate choice of vascular access type 16-17“.ĭouble and triple-lumen PICCs (Figure 2) are associated with an increase in occlusion. Ī recent study, for example, found considerable variation in the use of the PICC, indications for use and associated complications in a sample of 10 hospitals 15. However, the choice of device may in some cases be due to the limited information defining the appropriate indications for use of the single-lumen (Figure 1) versus the multi-lumen PICC 14. ![]()
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