What Researchers Did
Researchers prospectively reviewed 4,568 consecutive neuro-angiographic procedures over five years to determine the incidence and etiology of symptomatic cerebral air embolism.
What They Found
Out of 4,568 neuro-angiographic procedures, four symptomatic cerebral arterial air emboli occurred (0.08%). All four events happened during 1,418 interventional procedures (0.2%), with none in 3,150 diagnostic angiograms. Three cases led to permanent neurologic deficits, and sources included pressurized arterial flush lines and sudden hypotension.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
The study's findings are based on a single institution's experience, which may limit generalizability to other clinical settings.