Table 1

Baseline and acute haemodynamic data at two hours after receiving metoprolol 6.25 mg for 13 patients entering the haemodynamic study

Haemodynamic measurementBaselineAcute peakp value1-150
Heart rate (beats/min)93  (10.7)92  (11.4)NS
Mean arterial pressure (mm Hg)82 (12.6)83 (9.8)NS
Pulmonary capillary wedge pressure (mm Hg)29 (5.8)30 (5.2)NS
Right atrial pressure (mm Hg)11 (5.1)12 (4.9)NS
Cardiac index (l/min/m2)2.2 (0.35)1.9 (0.37)0.0009
Systemic vascular resistance (dyn.s.cm−5)1367 (340)1580 (328)0.0019
Stroke volume index (ml/m2)23.6 (4.87)20.5 (4.16)0.0011
Stroke work index (g.m/m2)16.9 (5.1)15.1 (5.05)0.0234
  • Values are expressed as mean (SD).

  • 1-150 Significant difference within each haemodynamic parameter from trough to peak, with analysis of variance correction for repeated measures.