Dartmouth Middle Meningeal Embolization Trial (DaMMET)

Using established endovascular techniques and materials patient will have a diagnostic catheter based angiogram performed on the side(s) of the brain where the subdural hematoma is present. After verifying the vascular anatomy to ensure safety of the procedure the Middle Meningeal Artery will be embolized.

Standard of care could include observation or intervention including surgical drainage of subdural hematoma by bedside drain, Subdural Evacuating Port System (SEPS), burr hole or craniotomy