Analysis of results of TCD on 568 patients with hypertension / 中国医师杂志

ABSTRACT

Objective To probe into the application value of Transcranial Doppler ultrasound (TCD)for hypertension in health examination by retrospective analyzing the characteristics of TCD in Hy-pertension patients.Methods Five hundred and sixty -eight hypertension patients diagnosed in health ex-amination conducted from February 2011 to December 2014 in our hospital were selected as hypertension group,and 500 normal people participated who except hypertension in the health examination during the same period as control group.All the subjects were examined with TCD,and the results of examination in two groups were comparatively analyzed.Results Four hundred and ninety -six cases TCD examination results of 568 patients were abnormal(87.32%)in hypertension group,including 310 cases of cerebral ar-teriosclerosis(54.58%),268 cases of reduced blood flow velocity(47.18%),228 cases of elevated blood flow velocity(40.14%),245 cases of increased pulsatility index(PI)(43.13%),315 cases of increased re-sistance index (RI)(55.46%),and 231 cases of increased systolic velocity/diastolic velocity (S /D) (40.67%).The number of abnormal cases is significantly higher than that of the control group,and the difference has statistical significance (P <0.05).At the same time,compared with the control group,the mean velocity(Vm),systolic velocity(Vs)and diastolic velocity(Vd)of the bilateral middle cerebral artery (MCA)and the basilar artery(BA)in hypertension group are decreased significantly,while the PI,RI and S /D increased significantly,all the difference of which has statistical significance(P <0.05).Conclu-sions TCD can accurately reflect the hemodynamics status,the brain atherosclerosis and other pathologic changes,contributing to the assessment of hypertension and prediction of cerebrovascular diseases.Besides,it provides references for the clinical treatment and has positive effects on the prevention of cerebrovascular diseases.