Table 1.

Selected Hemodynamic and Echocardiographic Parameters Before, During, and After Intravenous PE Infusion: Protocol A & B Combined (n = 13)

	Baseline (n = 13)	60-Min PE (n = 13)	60-Min Post-PE (n = 13)
Heart rate, beats/min	97 ± 15	89 ± 20	91 ± 17
LV peak systolic pressure, mm Hg	133 ± 12	187 ±10*	117 ± 12*
LV end-diastolic pressure, mm Hg	17 ± 2	30 ± 5*	17 ± 3
LV dP/dtmax, mm Hg/s	2178 ± 330	2037 ±349*	1316 ± 232*
LV end-diastolic volume, ml	115 ± 19	147 ± 27*	145 ± 37*
LV end-systolic volume, ml	46 ± 13	91 ± 26*	96 ± 44*
Stroke volume, ml	69 ± 12	56 ± 11*	48 ± 16*
LV ejection fraction, %	61 ± 8	39 ± 9*	37 ± 19*

Values are mean ± SD.

^*p <0.05 versus baseline.

dP/dtmax = maximum rate of rise of left ventricular pressure; LV = left ventricular; PE = phenylephrine.