Blood Pressure Variability during Angiography in Patients with Ischemic Stroke and Intracranial Artery Stenosis
Table 1
Demographic and clinical characteristics of study patients.
Period between disease onset and angiography exam (days)
<3 (n = 33)
3–14 (n = 81)
Demographics
Age, years
65.0 (57.0, 78.0)
62.0 (55.0, 72.0)
0.19c
Male
15 (45.45%)
36 (44.44%)
0.92b
Characteristics at admission
NIHSS at admission
6.0 (4.0, 15.0)
3.0 (1.0, 6.0)
0.0002c
SBP at admission
160.0 (143.0, 180.0)
140.0 (130.0, 160.0)
0.004c
DBP at admission
90.0 (80.0, 91.0)
80.0 (70.0, 90.0)
0.02c
LDL, mmol/L
3.3 ± 1.1
2.9 ± 0.8
0.02a
Medical history
Location of intracranial artery stenosis
0.15b
Posterior circulation
8 (24.24%)
31 (38.27%)
Anterior circulation
25 (75.76%)
50 (61.73%)
Type of TOAST
0.25d
Large artery atherosclerosis
25 (75.76%)
70 (86.42%)
Small artery disease
4 (12.12%)
7 (8.64%)
Cardiogenic stroke
4 (12.12%)
3 (3.70%)
Others
0 (0%)
1 (1.23%)
Anterior circulation
28 (84.85%)
51 (62.96%)
0.02b
Hypertension
27 (81.82%)
58 (71.60%)
0.26b
Diabetes
10 (30.30%)
35 (43.21%)
0.20b
Cardiogenic stroke
10 (30.30%)
8 (9.88%)
0.007b
Atrial fibrillation
7 (21.21%)
2 (2.47%)
0.002d
Intravenous thrombolytics
8 (24.24%)
3 (3.70%)
0.002d
Medication history
Med for HTN use during operation
28 (87.50%)
67 (82.72%)
0.53b
Calcium channel blockers
15 (55.56%)
45 (77.59%)
0.04b
Preoperative characteristics
Preoperative SBP, mmHg
172.6 ± 34.7
168.8 ± 31.6
0.58a
Preoperative DBP, mmHg
95.3 ± 19.0
93.4 ± 15.1
0.59a
SBP CV, %
4.9 (2.8, 10.1)
5.9 (3.8, 10.0)
0.69c
DBP CV, %
8.2 (5.0, 12.8)
5.6 (3.2, 9.8)
0.07c
Data on continuous variables are presented as mean ± standard deviation (median (interquartile range, P25-P75)); other categorical variables are shown as frequency (%). Abbreviations: NIHSS, National Institutes of Health Stroke Scale; SBP, systolic blood pressure; DBP, diastolic blood pressure; HR: heart rate; LDL, low-density lipoprotein; TOAST, Trial of ORG 10172 in acute stroke treatment; CV, coefficient of variation. Bold values indicate statistical significance, .aT test; bchi-square test; cMann-Whitney U Test; dFisher’s exact test.