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Table 3 Mean CBF and CBV for patients with symptomatic ICA occlusion, classified in haemodynamic stage 0 ( n= 10) and haemodynamic stage 1 or 2 ( n= 13)

From: Intervention versus standard medical treatment in patients with symptomatic occlusion of the internal carotid artery: a randomised oxygen-15 PET study

 

Intervention

Standard

Unadjusted difference in change (95% CI)

Adjusted difference in change *(95% CI)

  

Mean ± SD

Mean ± SD

  

Haemodynamic stage 0

N = 5

N = 5

 

 CBF MCA (mL/min/100 mL)

Baseline

37.0 ± 3.0

35.0 ± 5.6

  

3 months

33.9 ± 5.8

34.4 ± 5.2

  

Change

−3.1 ± 8.1

−0.6 ± 5.3

−2.5 (−12.5 to 7.4)

−1.7 (−15.6 to 12.2)

 CBV MCA (mL/100 mL)

Baseline

3.1 ± 0.6

2.8 ± 0.7

  

3 months

3.0 ± 0.7

3.5 ± 0.4

  

Change

−0.2 ± 1.1

0.6 ± 1.0

−0.8 (−2.3 to 0.7)

−1.1 (−3.2 to 1.1)

Haemodynamic stage 1 or 2

N = 7

N = 6

 

 CBF MCA (mL/min/100 mL)

Baseline

27.2 ± 3.4

31.5 ± 5.2

  

3 months

30.0 ± 3.9

32.8 ± 4.6

  

Change

2.8 ± 3.1

1.3 ± 3.2

1.6 (−2.2 to 5.4)

−1.1 (−7.8 to 5.7)

 CBV MCA (mL/100 mL)

Baseline

2.9 ± 0.6

3.7 ± 0.8

  

3 months

4.0 ± 1.7

3.0 ± 0.6

  
 

Change

1.1 ± 1.9

−0.7 ± 1.1

1.8 (−0.2 to 3.8)

1.4 (−2.4 to 5.1)

  1. Asterisk ‘*’ indicates adjusted for age and sex; CBF, cerebral blood flow; CBV, cerebral blood volume; MCA, middle cerebral artery.