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  • Title: The "pinch-off sign": a warning of impending problems with permanent subclavian catheters.
    Author: Aitken DR, Minton JP.
    Journal: Am J Surg; 1984 Nov; 148(5):633-6. PubMed ID: 6496853.
    Abstract:
    The roentgenographic presence of the pinch-off sign indicates potential serious problems with central venous Silastic catheters and is an indication for immediate catheter removal and replacement at another site or position.
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