Surgery on the cervical V.A. may be discussed to treat different pathological states as described in the previous chapters; but there are two principal indications for this surgery:
to spare the V. A. in case of involvement by any lesion which must be removed
to restore V.A. flow which has been compromised and thereby prevent ischemic events in the vertebro-basilar territory.
KeywordsIschemic Event Oxygen Extraction Fraction Persistent Trigeminal Artery Ulcerate Plaque Ostial Stenosis
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© Springer-Verlag/Wien 1987