Retrospective Study
Copyright ©The Author(s) 2023.
World J Cardiol. Apr 26, 2023; 15(4): 154-164
Published online Apr 26, 2023. doi: 10.4330/wjc.v15.i4.154
Table 3 Echographic parameters in the two groups

Group O
Group Y
P value
UCG
LVEF (%)68 ± 966 ± 60.46
Brachial ultrasonography
All studied patients
No.7717
Heart rate (/min)66 ± 1067 ± 130.85
Mean blood pressure100 ± 1494 ± 140.16
Brachial blood flow
Baseline (mL/min)61 ± 4459 ± 520.87
% increase384 ± 490327 ± 2650.59
Brachial artery diameter (mm)
Baseline3.5 ± 0.53.5 ± 0.50.83
Hyperemia3.7 ± 0.53.6 ± 0.50.88
After NTG4.0 ± 0.54.2 ± 0.40.25
FMD (%)4.3 ± 3.24.5 ± 3.30.75
NID (%)13.6 ± 5.420.5 ± 8.6< 0.01
Patients who did not take any coronary vasodilators
No.3914
Brachial artery diameter (mm)
Baseline 3.5 ± 0.53.6 ± 0.40.68
Hyperemia3.6 ± 0.63.7 ± 0.40.60
After NTG4.0 ± 0.54.2 ± 0.40.21
FMD (%)4.1 ± 3.14.3 ± 3.50.82
NID (%)14.6 ± 5.718.5 ± 6.50.04