Table 3. Effect of Intracarotid Nitroprusside on CBF of Human Subjects (n = 8)
Values are expressed as mean ± SD. Significant differences on post hoc testing from
* intracarotid saline,
† intravenous phenylephrine,
‡ intravenous phenylephrine plus intracarotid nitroprusside, and
§ intracarotid verapamil. See text for details.
Paco2= partial pressure of carbon dioxide in arterial blood; MAP = mean arterial pressure; CBF = cerebral blood flow; CVR = cerebrovascular resistance.