UNASSIGNED: This prospective, comparative cross-sectional study was conducted among 63 hypertensives and 75 normotensive controls. Using Doppler ultrasonography, the CRA and OA Doppler velocimetry parameters among cases and controls were evaluated and analysed.
UNASSIGNED: The CRA Peak Systolic Velocity (PSV) and End-diastolic velocity (EDV) was 7.54 ± 2.60cm/s and 2.99 ± 1.15cm/s (p<0.001) in hypertensives but 10.8 ± 2.51cm/s and 4.50 ± 1.25cm/s) p<0.001 in controls. The systolic/diastolic ratio (S/D) in cases was 2.64 ± 0.75 and 2.44 ± 0.38 p=0.045 in controls. The CRA\'s Pulsatility Index (PI) between cases and controls was not statistically significant, p =0.082. Furthermore, the CRA\'s PSV, PI, Resistivity index (RI) and S/D, were higher among subjects with stage 1 compared to stage 2 hypertension (p=0.004; p=0.027; p<0.001 and p=0.001 respectively). The OA mean EDV in hypertensives was 4.57 ± 1.97 and in controls= 5.31 ± 1.79 (p=0.022), while the OA mean RI and Peak Ratio, p=0.009 and 0.003, respectively, were higher in stage 1 hypertension.
UNASSIGNED: The Central retinal and ophthalmic artery blood flow parameters were significantly lower among hypertensive cases. Also, hypertensive stage 2 cases had significantly lower blood flow and vascular impedance parameters in the CRA and both Central retinal and ophthalmic artery, respectively.
■这个前景,在63名高血压患者和75名血压正常对照中进行了横断面比较研究.使用多普勒超声检查,对病例和对照组的CRA和OA多普勒测速参数进行评估和分析。
■高血压患者的CRA收缩压峰值速度(PSV)和舒张末期速度(EDV)分别为7.54±2.60cm/s和2.99±1.15cm/s(p<0.001),而对照组为10.8±2.51cm/s和4.50±1.25cm/s)p<0.001。对照组的收缩压/舒张压比(S/D)为2.64±0.75和2.44±0.38p=0.045。病例和对照组之间的CRA搏动指数(PI)没有统计学意义,p=0.082。此外,CRA的PSV,PI,电阻率指数(RI)和S/D,与第2阶段高血压相比,第1阶段高血压的受试者更高(p=0.004;p=0.027;p分别<0.001和p=0.001)。高血压患者的OA平均EDV为4.57±1.97,对照组为5.31±1.79(p=0.022),而OA是指RI和峰比,p分别为0.009和0.003,在1期高血压中较高。
■在高血压病例中,视网膜中央和眼动脉血流参数明显较低。此外,2期高血压患者CRA、视网膜中央动脉和眼动脉的血流量和血管阻抗参数明显降低,分别。