Figure 4. Effective regional work at baseline and 30, 60, 120, and 180 min after reperfusion. *Significantly (P < 0.05) different from baseline;(dagger)significantly (P < 0.05) different from drug vehicle-pretreated dogs;(section)significantly (P < 0.05) different from dogs receiving glyburide alone; and (double dagger)significantly (P < 0.05) different from dogs receiving glyburide and isoflurane.