What procedure may be performed to control severe nasal bleeding?

The procedure suitable for controlling severe nasal bleeding is epistaxis embolization. This technique specifically targets the blood vessels responsible for the bleeding within the nasal cavity, often involving the arterial supply to the nose, such as the maxillary, sphenopalatine, or anterior ethmoidal arteries. By selectively occluding these vessels, epistaxis embolization effectively reduces or eliminates the source of the hemorrhage, providing immediate relief and preventing further blood loss.

In addressing why other options are not applicable in this scenario, it is important to note that stent placement is generally used to treat vascular obstructions and conditions related to atherosclerosis, rather than nasal bleeding. Arteriovenous malformation embolization is aimed at treating abnormal connections between arteries and veins, which may not be the direct cause of severe nasal bleeding. Aneurysm embolization focuses on occluding aneurysms to prevent hemorrhage but is not designed specifically for controlling nasal bleeding events. Thus, epistaxis embolization stands out as the most effective and relevant procedure for addressing nasal hemorrhage.