Comparison of angiographic findings and treatment parameters between patients with HHT and patients with idiopathic epistaxis
| Normal Angiogram | Required Multiple Embolizations | |
|---|---|---|
| HHT | 1/12 (8%) | 6/12 (50%) |
| Idiopathic | 7/10 (70%) | 1/10 (10%) |
| P = .0062 | P = 0.0743 | |
| Previous surgery for epistaxis | ||
| HHT | 8/12 (67%) | |
| Idiopathic | 4/10 (40%) | |
| P = .3913 | ||
| Mean number of vessels embolized | ||
| HHT | 2.75 | |
| Idiopathic | 2.27 | |
| P = .1975 | ||
| Bilateral ECA vessel embolization performed | ||
| HHT | 15/16 (94%) | |
| Idiopathic | 7/11 (64%) | |
| P = .1252 | ||
Note:—HHT indicates hereditary hemorrhagic telangiectasia; ECA, external carotid artery. P values were calculated using the Fisher exact test for categoric data and t test for continuous data.