CTICasesIatrogenic Arterial Line Placement into Right Subclavian Artery and Aorta
Imaging findings
A chest radiograph showed an attempted internal jugular (IJ) line projecting medially over the aorta, indicating misplacement. CT confirmed the line entering the internal jugular vein, then aberrantly entering the right subclavian artery, and extending into the descending aorta near the aortic valve.
Key takeaways
Central venous catheter misplacement can lead to severe arterial injuries. Medial projection of a presumed IJ line on chest radiograph should raise suspicion for arterial cannulation. A deep arteriotomy of the subclavian artery requiring sternotomy for repair is a serious complication.
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