Epistaxis is a very frequent emergency among adults and often needs specialised treatment in an ENT-department. Among others, atherosclerosis is often named as a reason for an increased risk for Epistaxis. To evaluate whether or not this is the case, the investigators examined the carotid intima media thickness via ultrasound in patients who were treated in the ENT-department of the University Hospital of Zurich.

Inclusion Criteria:

• active or very recently active anterior or posterior epistaxis
• at least 18 years old

Exclusion Criteria:

• posttraumatic or postoperative epistaxis

50 patients with epistaxis and 50 healthy controls.

The participant data will no longer be used by us or other researchers after the project is finished.