Implantation of a new access device for hemodialysis (Dialock): initial experience in 5 patients.
OBJECTIVE
A new hemodialysis access port system was implanted.


METHODS
The Dialock consists of a port-like double-valve, implanted subcutaneously below the clavicle, which is attached to two catheters, placed in the right 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 catheters and the port was technically successful. Total average duration of dialysis was 3.6 months. Two patients developed a port pocket hematoma 10-14 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 8 days after implantation, fixed by catheter exchange. Another patient presented with slight migration of the port catheters, which was managed by refixation of the port within the pocket. Beside these complications, the devices were working well.


CONCLUSIONS
The Dialock system offers an interesting alternative to external catheters for hemodialysis. With respect to the complications it deserves further studies to determine its future role in the field of vascular access.
Schmitz-Rode
T
T
Department of Diagnostic Radiology, Universitätsklinikum der RWTH Aachen. smiro@rad.rwth-aachen.de
Bücker
A
A
Tacke
J
J
Wingen
M
M
Noah
M
M
Ketteler
M
M
Günther
R W
RW
D002408:Catheters, Indwelling; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D005500:Follow-Up Studies; D006325:Heart Atria / Q000000981:diagnostic imaging; D006801:Humans; D015918:Infusion Pumps, Implantable; D007676:Kidney Failure, Chronic / Q000000981:diagnostic imaging* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011859:Radiography; D006435:Renal Dialysis / Q000295:instrumentation*