endoaneurysmorrhaphy

noun

en·​do·​an·​eu·​rys·​mor·​rha·​phy ˌen-dō-ˌan-yə-ˌriz-ˈmȯr-ə-fē 

plural endoaneurysmorrhaphies

: a surgical treatment of aneurysm that involves opening its sac and collapsing, folding, and suturing its walls so that the lumen of the blood vessel approximates normal size