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Table 3 Patient’s neurological and neurophysiological characteristics at time of inclusion

From: Early impairment of intracranial conduction time predicts mortality in deeply sedated critically ill patients: a prospective observational pilot study

Variables

All patients

Non-brain-injured patients

Brain-injured patients

p value

Number of patients

86

49 (57)

37 (43)

 

Glasgow Coma Score—median (IQR)

3 (3 to 3)

3 (3 to 3)

3 (3 to 3)

0.97

FOUR score—median (IQR)

4 (2 to 5.7)

4 (2 to 5.0)

4 (2 to 5.5)

0.73

Abolition of cough reflex

24 (29)

16 (33)

8 (26)

0.34

RASS—median (IQR)

−5 (−5 to −4)

−5 (−5 to −4)

−5 (−5 to −5)

0.82

Delayed SSEP’s IPL—n (%)

 N9–N13 IPL

14 (16)

11 (22)

3 (8)

0.08

 P14–N20 IPLa (ICCT)

39 (45)

21 (43)

18 (49)

0.60

Delayed BAEP’s IPL—n (%)

    

 I–III IPL

17 (20)

9 (18)

8 (22)

0.71

 III–V IPL (IPCT)

15 (17)

9 (18)

6 (16)

0.80

 I–V IPL

17 (20)

12 (24)

5 (13)

0.21

  1. FOUR the Full Outline of Unresponsiveness (FOUR) score, RASS Richmond Assessment Sedation Scale, PL peak latency, IPL inter-peak latency, ICCT intracranial conduction time, IPCT intra pontine conduction time. PL and IPL of SSEP or BAEP’s components were scored as “delayed” when they were greater than the “mean + 2.5 SD” of the ones of a healthy control group
  2. aN20 was abolished in three patients. N20 PL and P14–N20 IPL were consequently considered as delayed for these three patients