Table 1

Achieved change in haemodynamic status

	HR, bpm	P_max, mm Hg	dP/dt_max, mm Hg/s	FS, per cent	D_ed, mm	D_w, mm	M_w, mm Hg
Group I
Baseline	126±26	127±16	2633±559	23±4	28.9±4.5	17.8±2.2	71.7±19.9
AP	167±4*	127±18	2654±536	21±4	26.9±2.6	17.8±2.5	77.1±21.2*
DOB	174±17*	154±17	4721±625*†	31±3*†	27.0±3.1	17.5±2.5	121±19.3*†
Group II
Baseline	128±12	136±15	3300±272	23±4	36.8±5.6	23.4±6.1	80.0±9.9
HF	135±23	111±12*	1811±369*	13±3*	38.6±4.7	26.0±5.6	36.4±10.1*
Group III
Baseline	118±7	114±9	2542±316	26±4	32.8±8.7	20.5±5.0	71.9±10.7
HTN	133±37	143±15*	3218±390*	24±5	31.3±8.1*	20.7±5.3	89.6.±11.0

*p<0.05 versus baseline.
†p<0.05 versus AP.
AP, indicates atrial pacing; D_ed, end-diastolic dimension; DOB, dobutamine; dP/dt_max, peak rate of pressure rise; D_w and M_w, dimension-axis intercept and slope of preload recruitable stroke work relationship, respectively; FS, fractional shortening; HF, heart failure; HR, heart rate; HTN, hypertension; P_max, maximal systolic pressure.