Encephalomyosynangiosis

Last revised by Francis Deng on 6 May 2022

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Deng F, Hacking C, Encephalomyosynangiosis. Reference article, Radiopaedia.org (Accessed on 23 Apr 2024) https://doi.org/10.53347/rID-71955

DOI:

https://doi.org/10.53347/rID-71955

Permalink:

https://radiopaedia.org/articles/71955

rID:

71955

Article created:

31 Oct 2019, Frank Gaillard ◉ ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

6 May 2022, Francis Deng ◉

Disclosures:

At the time the article was last revised Francis Deng had no financial relationships to ineligible companies to disclose.

View Francis Deng's current disclosures

Revisions:

3 times, by 3 contributors - see full revision history and disclosures

Systems:

Vascular, Central Nervous System, Paediatrics

Synonyms:

Encephalomyosynangiosis (EMS)

Encephalomyosynangiosis (EMS) is an indirect revascularization surgery for moyamoya disease as a way to bypass an occluded internal carotid artery and circle of Willis.

It entails dissecting strips of vascularized temporalis muscle and subjacent galeal flap and, following craniotomy and opening the dura, laying them directly onto the pial surface of the brain. The dura is then closed over the muscle flap. Revascularization occurs as a result of angiogenesis driven by local hypoperfusion and ischemia ¹. The deep temporal artery is the main arterial supply.