Table 6

Hemodynamic variables in the subgroups of patients with left ventricular ejection fraction ≤45% and an achieved mean arterial pressure inferior (n = 17) or superior (n = 17) to the median value (74 mm Hg)

Achieved MAP < 75 mm Hg

Achieved MAP ≥75 mm Hg

Before NE

(introduction/increase)

After NE

(introduction/increase)

Before NE

(introduction/increase)

After NE

(introduction/increase)

Heart rate, beats/min

100 ± 16

96 ± 17

92 ± 18

91 ± 17

MAP, mm Hg

49 ± 8

68 ± 4^a

58 ± 8

82 ± 7^a

DAP, mm Hg

36 ± 6

48 ± 7^a

40 ± 8

56 ± 9^a

CI, L/min/m²

2.7 ± 0.9

3.0 ± 1.0^a

3.2 ± 0.8

3.4 ± 0.8

SVI, ml/m²

28 ± 11

33 ± 13^a

35 ± 10

38 ± 10

GEDVI, ml/m²

660 ± 167

770 ± 185^a

737 ± 157

766 ± 201

CFI, per min

3.9 ± 1.5

4.0 ± 1.5

4.4 ± 1.2

4.6 ± 1.4

SVRI, dynes/sec/cm⁵/m²

1,654 ± 639

1,993 ± 709^a

1,523 ± 355

2,057 ± 527^a

CFI, cardiac function index; CI, cardiac index; DAP, diastolic arterial pressure; GEDVI, global end-diastolic volume index; HR, heart rate; MAP, mean arterial pressure; NE, norepinephrine; SVI, stroke volume index; SVRI, index of systemic vascular resistance.

^aP < 0.05 vs. before norepinephrine.

Hamzaoui et al. Critical Care 2010 14:R142   doi:10.1186/cc9207