[Inadvertent arterial misplacement of a large-caliber cannula during jugular vein catheterization].

We report a case of inadvertent arterial misplacement of a large-caliber cannula during jugular vein catheterization. A tip of a 9F cannula was inadvertently placed into the brachiocephalic trunk via the subclavian artery. The arterial trauma was managed by cannula removal and external compression without secondary traumas. Our case emphasizes that the excursion of the subclavian artery is associated with a significant risk of trauma on the subclavian artery during jugular vein catheterization.