Table 1.

End-apnea hemodynamic variables

Units	Placebo	Esmolol
HR, beats/min	54.2 ± 16.9	52.2 ± 13.3
MAP, mmHg	139.0 ± 18.6	129.6 ± 19.1
SV, ml	92.7 ± 21.8	78.5 ± 21.3†
CO, l/min	5.4 ± 2.4	4.4 ± 1.3
RPP, mmHg·beats−1·min−1	13,192 ± 3,882	10,124 ± 3,318†
Systolic BP, mmHg	247.9 ± 37.6	195.7 ± 25.8†
$\mathrm{S}{\mathrm{p}}_{\mathrm{O}}{}_{{}_{\mathrm{2}}}$, %	74.9 ± 9.5	71.8 ± 10.3

Values are means ± SE. HR, heart rate; MAP, mean arterial pressure; SV, stroke volume; CO, cardiac output; RPP, rate pressure product; BP, blood pressure; $\mathrm{S}{\mathrm{p}}_{\mathrm{O}}{}_{{}_{\mathrm{2}}}$, peripheral oxyhemoglobin saturation.

^†Significant difference between placebo and esmolol, P < 0.05.