Table 2 Comparison of baseline physiological parameters and autoregulation indices between the CHS and non-CHS groups.

From: Autoregulatory dysfunction in adult Moyamoya disease with cerebral hyperperfusion syndrome after bypass surgery

Variables

CHS group

non-CHS group

Evaluation

 

Median (IQR)

AUC (95% CI)

P

Baseline physiological parameters

PRE1

ABP, mmHg

85.335 (72.216–91.485)

79.856 (69.521–88.481)

0.571 (0.356–0.787)

0.533

CBFv (Ipsi), cm/s

65.420 (43.987–120.785)

65.212 (52.304–78.634)

0.567 (0.343–0.791)

0.561

CBFv (Contra), cm/s

64.818 (50.798–108.098)

61.132 (46.036–72.678)

0.614 (0.403–0.826)

0.310

CBFv laterality ratio

0.981 (0.790–1.227)

1.017 (0.801–1.770)

0.581 (0.367–0.795)

0.477

POD3

ABP, mmHg

86.056 (75.353–96.827)

80.690 (69.353–85.088)

0.676 (0.479–0.873)

0.112

CBFv (Ipsi), cm/s

70.485 (61.004–79.659)

86.669 (57.516–98.832)

0.586 (0.366–0.805)

0.451

CBFv (Contra), cm/s

68.901 (58.407–116.793)

55.605 (50.297–72.711)

0.729 (0.544–0.914)

0.037

CBFv laterality ratio

0.869 (0.639–1.407)

1.242 (1.072–1.559)

0.729 (0.537–0.921)

0.037

DD

ABP, mmHg

75.920 (72.724–84.528)

77.771 (74.268–86.875)

0.562 (0.349–0.774)

0.591

CBFv (Ipsi), cm/s

64.375 (53.491–94.950)

87.164 (63.513–106.176)

0.648 (0.443–0.852)

0.186

CBFv (Contra), cm/s

63.157 (56.233–77.238)

54.873 (39.402–65.429)

0.671 (0.472–0.871)

0.123

CBFv laterality ratio

0.923 (0.813–1.344)

1.551 (1.052–1.898)

0.757 (0.577–0.937)

0.018

Autoregulation Indices

PRE1

VMOI, cm/s

12.345 (8.771–14.270)

19.757 (16.346–20.931)

0.838 (0.684–0.992)

0.001

Mxa

0.205 (0.103–0.421)

0.238 (0.203–0.306)

0.557 (0.338–0.776)

0.621

VMAI

0.952 (0.886–0.972)

0.979 (0.944–1.049)

0.676 (0.479–0.873)

0.112

POD3

VMOI, cm/s

15.819 (11.895–19.834)

20.656 (16.172–31.050)

0.738 (0.556–0.920)

0.029

Mxa

0.318 (0.270–0.367)

0.181 (0.097–0.293)

0.752 (0.569–0.936)

0.020

VMAI

0.978 (0.948–1.020)

0.956 (0.925–1.076)

0.519 (0.300–0.738)

0.880

DD

VMOI, cm/s

20.640 (15.125–24.315)

16.898 (14.083–21.447)

0.624 (0.416–0.832)

0.270

Mxa

0.315 (0.199–0.512)

0.077 (-0.031–0.200)

0.748 (0.561–0.934)

0.023

VMAI

0.983 (0.949–1.041)

0.973 (0.900–1.039)

0.567 (0.353–0.781)

0.561

  1. Significant P-value (P < 0.05) are bolded for ease of identification.
  2. ABP arterial blood pressure, AUC area under the receiver operating characteristic curve, CBFv cerebral blood flow velocity, CHS Cerebral hyperperfusion syndrome, CI confidence interval, DD discharge day, IQR interquartile range, Mxa mean flow index, POD3 postoperative day 3, PRE1 one day before the surgery, VMAI Valsalva maneuver Autoregulatory index, VMOI Valsalva maneuver overshooting index.
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