Fig. 2. Effects of intracoronary sevoflurane and desflurane on coronary blood flow (normalized on the basis of the percentage change from the respective control [preanesthetic] value). The volatile anesthetics caused concentration-dependent increases in coronary blood flow that did not differ. P < 0.05, *versus 0.5 minimum alveolar concentration (MAC); †versus 1.0 MAC. Values are mean ± SD.