Implantation of a new access device for hemodialysis (Dialock): Initial experience in 5 patients

Purpose: A new hemodialysis access port system was implanted. Methods: The Dialock (TM) consists of a port-like double-valve, implanted subcutaneously below the clavicle, which is attached to two catheters, placed in the righ t atrium via the jugular vein. The device has been implanted in 5 patients (4 female, 1 male). Results: In all 5 patients the implantation of the cath eters and the port was technically successful. Total average duration of di alysis was 3.6 months. Two patients developed a port pocket hematoma 76 - 7 4 days post implantation, one of them required surgical revision. One port was explanted due to septicemia, whereas a port infection was not confirmed . One patient showed a thrombotic occlusion of both catheter tips g days af ter implantation, fixed by catheter exchange. Another patient presented wit h slight migration of the port catheters, which was managed by refixation o f the port within the pocket. Beside these complications, the devices were working well. Conclusion: The Dialock system offers an interesting alternat ive to external catheters for hemodialysis. With respect to the complicatio ns it deserves further studies to determine its future role in the field of vascular access.