Coil Embolization for Management of Brachiocephalic Artery Perforation and Mediastinal Hematoma Following Percutaneous Coronary Intervention.

In this clinical image vignette, we illustrate the presentation and management of an extremely rare and lethal complica- tion of radial access percutaneous coronary intervention. We present a case of perforation of a small collateral branch of the brachiocephalic artery with subsequent mediastinal hematoma formation and stridor presentation. We suspect the perforation was probably caused by the hydrophilic-coated guidewire. After a multidisciplinary heart team discussion, a percutaneous approach was recommended. We performed the procedure with a single coil embolization of the collateral branch perforation, achieving complete resolution of the hemorrhage.