Table 2.

Biophysical and biochemical characteristics of endothelial function from subjects with and without neurally mediated syncope

	Case (n=27)	Control (n=30)	P
D1, mm	2.89±0.51	2.70±0.40	0.128
D2, mm	3.29±0.50	2.95±0.44	0.008*
FMD, %	8.58±3.62	5.26±2.26	0.001*
IMT, mm	0.285±0.04	0.298±0.05	0.327
ICAM, ng/mL	93.64±52.01	58.95±42.85	0.022*
VCAM, ng/mL	115.32±62.36	72.22±51.23	0.008*
E-selectin, ng/mL	39.90±4.25	39.93±2.87	0.413
Epinephrine, ng/mL	0.36±0.3	0.76±0.55	0.013*
Norepinephrine, ng/mL	1.05±0.96	1.04±1.17	0.961

All variables are reported as the mean±standard deviation

^*P<0.05, statistically significant.

Significant differences between the groups in terms of mean scores were assessed using an independent sample t-test. D1 - Vessel diameter at rest; D2 - Vessel diameter after hyperemia; FMD - flow mediated dilation; IAM - intracellular adhesion molecule; IMT - intima media thickness; VCAM - vascular cell adhesion molecule