Abstract
A 79-year-old woman developed a hemothorax 2 days after implantation of a permanent pacemaker. Computed tomography angiography revealed active extravasation from the left internal mammary artery. A covered stent was deployed to manage the arterial perforation. This case report explores different venous access techniques to minimize the risk of arterial injuries and describes the use of a covered stent in managing a non-grafted left internal mammary artery injury from a pacemaker implantation procedure.