Computed tomography (CT) venography using a multidetector CT prior to the percutaneous external jugular vein approach for an implantable venous-access port.

BACKGROUND AND PURPOSE: The objective of this study was to determine the success rate and complications of using the percutaneous approach of the external jugular vein (EJV) for placement of a totally implantable venous-access port (TIVAP) with a preoperative estimate of the detailed anatomical orientation of the cervical venous plexus using computed tomography venography (CT-V).

METHODS: A prospective cohort study of 45 patients in whom placement of a TIVAP was attempted via the right EJV was conducted. The preoperative anatomical estimation of the cervical venous plexus was performed with CT-V using a Multidetector Helical 16-section CT. The angulation between the right EJV and the right subclavian vein, anterior jugular vein, transverse cervical vein, and suprascapular vein was estimated.

RESULTS: CT-V success was achieved in 45 of 45 patients (100 %). A plexus of veins under the clavicle was most commonly responsible for the insertion of the central venous catheter. The EJV approach resulted in a successful cannulation rate of 93 %. No initial complications of pneumothorax or carotid artery puncture occurred during insertion procedures. Late complications occurred in three patients. These included one port erosion (2 %), one catheter occlusion (2 %), and one wound hematoma (2 %). Catheter-related infections were observed in one patient (2 %).

CONCLUSIONS: The percutaneous EJV approach with CT-V guidance is an optional method for patients with multiple central venous cannulations, those in hemodialysis, or those with long catheter indwelling periods.