Table 1. Effect of Isoflurane on the Hypoxic Pulmonary Vasoconstriction Response in the Absence and Presence of Potassium Channel Inhibitors

Values are mean ± SD (n = 6 per group).

*P < 0.01 versus  normoxia;

†P < 0.01 versus  0 minimum alveolar concentration (MAC) in ΔP^pawithin group.

P^pa= pulmonary arterial pressure (mmHg); P^pv= pulmonary venous pressure (mmHg); ΔP^pa= the difference in P^pabefore and after hypoxic stimuli; flow = perfusion blood flow rate (ml/min); glib = glibenclamide, the adenosine triphosphate–sensitive potassium channel inhibitor; 4-AP = 4-aminopyridine, the voltage-sensitive potassium channel inhibitor; IbTX = iberiotoxin, the high-conductance calcium-activated potassium channel inhibitor.