Central venous access port-related complications in outpatient chemotherapy for colorectal cancer

The current standard chemotherapy for advanced or metastatic colorectal cancer in Japan is FOLFOX or FOLFIRI therapy. Although both therapies include continuous infusion of 5-fluorouracil (5-FU), outpatient home chemotherapy is possible by placing a central venous access port (CV-port) and using a portable disposable pump. The port system has been placed more frequently since the approval of FOLFOX. Consequently, more complications involving ports and pumps have been encountered.

At our hospital, 232 patients with colorectal cancer underwent outpatient home chemotherapy by placing a CV-port and using a portable disposable pump for continuous infusion of 5-FU between 1998 and 2005. Incidence and contents of complications involving ports and pumps were investigated retrospectively.

A total of 54 incidents of complications involving ports and pumps were identified in 3142 treatments (1.72%) from among 34 of the 232 patients (14.7%). In 2005, when FOLFOX was introduced, 31 incidents occurred in 1903 treatments (1.63%) for 19 of 149 patients (12.8%). Incidents involved port placement (n = 6), catheter and port system-related complications (n = 15), puncture needle-related complications (n = 3), skin complications related to tape fixation (n = 20) and pump-related complications (n = 10). In 10 patients (4.3%), system-related complications made therapy difficult to continue and system exchange was required.

Technical troubles involving ports and pumps occurred at a certain rate, and skin incision was required for system exchange in some cases. When performing outpatient chemotherapy using ports and pumps, thorough prior guidance and double-checking must be implemented, and proper countermeasures must be established.