disobliteration

dis·ob·li·ter·a·tion

(dis'ob-lit'ĕr-ā'shŭn),
Opening of a pathologically closed channel.

disobliteration

(dis″ŏ-blit″ĕ-rā′shŏn) [ ¹dis- + obliteration]
Removal of a blood clot or atherosclerotic plaque from an obstructed blood vessel.