The Catheter Pinch-Off Syndrome (CPOS) may involve a percutaneous intravascular catheter inserted into the subclavian vein. It is caused by compression of the catheter as it runs between the first rib and the clavicle.
Features of the CPOS:
(1) associated with catheters inserted medial to the midclavicular line
(2) intermittent mechanical occlusion, with (a) resistance to flushing or infusion and/or (b) difficulty in aspirating blood
(3) relief of the occlusion by either (a) rolling the ipsilateral shoulder, and/or (b) raising the ipsilateral arm
(4) radiographic narrowing of the catheter lumen as it travels between the first rib and the clavicle
Prevention: Insertion of the catheter lateral to the midclavicular line.
To read more or access our algorithms and calculators, please log in or register.
