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Table 2 Differences between two groups during bronchoscopic examination

From: Monitoring sedation for bronchoscopy in mechanically ventilated patients by using the Ramsay sedation scale versus auditory-evoked potentials

Variables AEP monitor group (n = 19) RSS monitor group (n = 18) P
Median number of propofol dosage adjustment 6 [5-7] 3 [2-3.8] <0.001
Time to the first adjustment of the propofol dosage (second) 137 [117.5-200.5] 466 [376.5-553.5] <0.001
Propofol dosage during examination (μgkg-1min-1) 43.5 [28.5-49.3] 24.2 [15.5-32.4] 0.025
Fentanyl dosage during examination (μgkg-1hr-1) 2.5 [1.8-3.1] 2.7 [1.9-3.4] 0.679
Percentage of propofol dosage change compared with the baseline dose (%) 93.5 [48.4-172.3] 39.5 [30.4-53.9] 0.011
Percentage of time at sedation target (%) 51.3 [47.0-63.5] 15.4 [9.5-23.5] <0.001
Percentage of AAI levels greater than 40 during examination (%) 35.3 [27.1-51.5] 84.5 [76.5-90.4] 0.033
Patients with significant hypotension (MAP less than 60 mmHg) (%) 2 (10.5) 0 (0) 0.154
Duration of FB examination (min) 29 [27-32] 30 [28-32] 0.860
EMG (dB) 18 [16-23.5] 20 [17-25] 0.751
  1. Data are presented as the number (n), or median [interquartile range]. AAI: Alaris AEP index; AEP: auditory evoked potentials; dB: decibel; EMG: electromyography; FB: flexible bronchoscope; MAP: mean arterial pressure RSS: Ramsay Sedation Scale.