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Table 1 Hemodynamic parameters at control, CPT30, and CPT90

From: Dynamic cerebral autoregulation in anterior and posterior cerebral circulation during cold pressor test

 

Control

CPT30

CPT90

HR (bpm)

70.2 ± 17.7

81.5  ±  17.1*

81.0 ± 15.5*

SBP (mmHg)

129.1  ±  11.2

139.9  ±  11.1*

152.1 ±  15.8*†

DBP (mmHg)

74.0  ±  8.3

78.6 ±  8.3

87.8 ±  8.4*†

MAP (mmHg)

92.4  ± 8.4

99.0  ±  8.2*

109.2 ±  10.2*†

SV (mL)

90.8 ± 16.9

94.0  ±  12.4

92.0 ± 11.6

CO (L/min)

6.3  ±  1.8

7.6 ±  1.8

7.4 ±  1.7

RR (breath/min)

14.8  ±  0.7

14.8 ± 0.7 

14.8 ±  0.6

VE (L/min)

8.3  ±  1.6

8.7  ±  1.4

9.9 ±  2.5

PETCO2 (mmHg)

37.5  ±  2.7

37.2  ±  1.9

36.4 ±  2.5

MCAv (cm/s)

58.8  ±  6.1

60.4  ±  10.3

59.8 ±  12.7

MCA CVCi (cm/s/mmHg)

0.64  ±  0.05

0.61  ±  0.09

0.55 ±  0.11

MCA CrCP (mmHg)

16.7  ± 13.5

10.9 ±  13.2

6.0 ±  16.6*

PCAv (cm/s)

33.3  ±  7.3

33.4 ±  6.7

33.1 ±  8.2

PCA CVCi (cm/s/mmHg)

0.36  ±  0.07

0.34 ±  0.07

0.30 ±  0.07*

PCA CrCP (mmHg)

13.6  ±  15.9

4.6 ± 14.4*

4.1 ±  19.9

  1. Data are presented as means ± SD
  2. HR heart rate, SBP systolic blood pressure, DBP diastolic blood pressure, MAP mean arterial pressure, SV stroke volume, CO cardiac output, RR respiratory rate, VE ventilation, PETCO2 end-tidal partial pressure of carbon dioxide, MCAv middle cerebral artery mean blood velocity, MCA CVCi middle cerebral artery cerebral vascular conductance index, MCA CrCP middle cerebral artery critical closing pressure, PCAv posterior cerebral artery mean blood velocity, PCA CVCi posterior cerebral artery cerebral vascular conductance index, PCA CrCP posterior cerebral artery critical closing pressure
  3. * P < 0.05 different from control, †P < 0.05 different from CPT30
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The Journal of Physiological Sciences

ISSN: 1880-6562

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