Which instrument may be used to extend the arteriotomy during carotid endarterectomy?

The instrument used to extend the arteriotomy during carotid endarterectomy is the Potts scissors. These scissors are specifically designed with a tapered, angled tip that allows for precise manipulation and cutting in the vascular tissue without causing excessive trauma. During carotid endarterectomy, extending the arteriotomy is essential to remove atherosclerotic plaque from the carotid artery effectively. The Potts scissors enable the surgeon to make a clean and controlled extension of the incision, ensuring that the area is adequately exposed for the procedure while minimizing damage to surrounding structures.

Other instruments listed, such as the Mayo scissors, Jorgenson scissors, and Stevens scissors, do serve important roles in surgical settings but are not optimized for the specific task of extending arteriotomies in vascular procedures. Each of those instruments has its own design and intended uses but lacks the particular functionality required for the careful extension needed in carotid endarterectomy.