Color ultrasonography evaluating endothelial function for brachial artery and microvascular in essential hypertension and diabetes endothelial function

Objective To explore endothelial cell function in essential hypertension and diabetes. Method Diameter peak velocity of brachial artery of 35 patients with essential hypertension , 27 patients with essential hypertension and diabetes ,and 22 normal control subjects were measured by high resolution ultrasonography at basal and hyperaemia, meanwhile parameter of eye artery and retina artery flow were measured. Results There was significant difference of changes of brachial artery diameter and peak velocity at hyperemic condition ,and the flow parameter of eye artery and retina artery in three groups. The flow parameter of eye artery and retina artery are associated closely with the changes of brachial artery diameter at hyperemic condition. Conclusion Endothelial function impairment of brachial artery ,eye artery and retina artery in patients with essential hypertension and patients with essential hypertension and diabetes can be detected by ultrasonography.