Abstract
Peripheral venous access for extracorporeal photopheresis (ECP) may be difficult in graft versus host disease (GVHD) patients, because of previous intravenous therapies and multiple peripheral cannulations; in this population of patients, ultrasound guided midline catheters may be an alternative option to central venous access. In this single-center, prospective preliminary study, we enrolled all consecutive patients with a diagnosis of GVHD and candidate to ECP, over a period of 10 months. We used inserted power injectable, non-valved, polyurethane, 20-25 cm single lumen midline catheters (MC). Sixty-nine ECP procedures were carried out in six patients, using single-lumen MCs for outflow (5Fr in 74% and 4Fr in 26% of cases). For inflow, we used 5Fr or 4Fr MCs, or central venous access devices previously placed for other clinical reasons. There were no catheter-related complications during the entire period of ECP treatment. Mean outflow was significantly higher for 5Fr than for 4Fr MCs (35.8 ± 7.3 vs 29.2 ± 7.8 ml/min; p = 0.0008) and the procedure time was significantly shorter (92.9 ± 9.2 vs 108 ± 13.2 min; p < 0.0001). In GVHD patients, ECP can be performed efficiently and safely using single lumen polyurethane power injectable MCs. The best results are obtained with 5Fr rather than with 4Fr catheters. This strategy of venous access should be implemented in DIVA patients requiring ECP treatments, and probably also in other types of apheresis.
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