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Subclavian central venous access * Many consider the subclavian to be the preferred route for central venous access * Approximately 5-6% of subclavian's are associated with misdirection of the catheter tip into the internal jugular * Directing the J-tip of the guidewire caudally significantly reduces the incidence of malpositioning Reference: Tripathi M, et al. Direction of the J-Tip of the guidewire, in seldinger technique, is a significant risk factor in misplacement of subclavian vein catheters: a randomized, controlled study. Anesth Analg 2005;100:21-4.