Stroke, Vol 8, 182-188, Copyright © 1977 by American Heart Association
SR Lin and M Kormano
The effects of ventricular fibrillation and subsequent resuscitation on the
microcirculation of the verebral cortex were studied with microangiographic
and fluorescent protein tracer techniques. Immediately after revival, a
transient period of impaired cerebral perfusion occurred before complete
recovery from circulatory arrest was obtained. A circulatory arrest of
longer than ten minutes, followed by four to six hours of resuscitation,
caused defects of cortical capillary filling in both microangiography and
Trypan blue fluorescence. This was considered to represent impairment of
cortical perfusion, most likely due to edema. Cardiac arrest up to 12
minutes and subsequent resuscitation per se caused no blood-brain barrier
damage. Minimal blood-brain barrier damage occurred in one dog following
uncomplicated revival from a 14-minute arrest and in animals with prolonged
hypertension post-resuscitation. Up to three consecutive carotid
angiographies did not cause blood-brain barrier damage in the postischemic
brain.
ARTICLES
Cerebral circulation after cardiac arrest. Microangiographic and protein tracer studies
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