Table 4

Nature of incidents

Phase 1 (n = 78)

Phase 2 (n = 28)

Decrease in systolic blood pressure >20 mmHg

49 (63)

12 (43)

Increase in systolic blood pressure >20 mmHg

28 (36)

15 (54)

Decrease in heart rate >20 beats/min

1 (1)

0 (0)

Increase in heart rate >20 beats/min

0 (0)

1 (3)

Arrhythmia

0 (0)

0 (0)

Data expressed as the number (%) of incidents.

Argaud et al. Critical Care 2007 11:R133   doi:10.1186/cc6209