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Interventional radiological procedures in impaired function of surgically implanted catheter-port systems
K A Herrmann1, T Waggershauser, V Heinemann
1Institute of Clinical Radiology, Ludwig Maximilians University of Munich, Grosshadern, Marchioninistrasse 15, D-81377 Munich, Germany. herrmann@ikra.med.uni-muenchen.de
Purpose:
System-related complications in surgically implanted catheter-port systems (CPS) for intraarterial (i.a.) chemotherapy are well known. In most cases of complications, the treatment must be interrupted and the catheter-port system must be repaired surgically. We describe microinvasive interventional radiological procedures to correct some dysfunctions of CPS.
Methods:
Five patients with repetitive dysfunction of CPS were treated with interventional techniques. Two patients presented with perfusion impairment, one patient had a pseudoaneurysm of the hepatic artery, and two patients presented with catheter displacement. Radiological interventions included mechanical recanalization with a guidewire, vascular stenting, and correction of catheter dislocation with a goose-neck snare.
Results:
In all cases, correct function of the CPS was restored. No intervention-related complications occurred and surgery was avoided. Chemotherapy could be continued for a period of 4--10 months.
Conclusion:
For some system-related complications, minimally invasive radiological interventions can be used to restore the function of CPS for i.a. chemotherapy.