Cerebral hemodynamic change for patients with hypertension complicated retinopathy
10.3969/j.issn.1008-0074.2015.04.14
- VernacularTitle:高血压伴视网膜病变者的脑血流动力学变化
- Author:
Xuefen ZHUANG
;
Yuan LIU
- Publication Type:Journal Article
- Keywords:
Hypertension;
Hypertensive retinopathy;
Hemodynamics
- From:
Chinese Journal of cardiovascular Rehabilitation Medicine
2015;24(4):394-397
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the cerebral hemodynamic changes of patients with hypertension complicated reti-nopathy.Methods:A total of 77 patients with hypertension complicated retinopathy were enrolled as study group, another 70 patients,who received physical examination during the same period and its results were normal,were treated as normal control group.Index changes of middle cerebral artery (MCA)and anterior cerebral artery (ACA)were compared between two groups,and hemodynamic difference of ophthalmic artery (OA)and central retinal artery (CRA)were recorded.Results:Compared with normal control group:① Mean velocity of MCA and ACA [(64.28±13.29)cm/s,(20.12±7.21)cm/s vs.(129.18±20.14)cm/s,(89.35±10.98)cm/s]signifi-cantly rose in study group ,P <0.01 all;②There were significant reductions in peak systolic velocity (PSV)and end-diastolic velocity (EDV)of OA and CRA,P <0.05 all,and resistance index significantly rose in all classes of study group (P <0.05 all);③There were significant reductions in mean blood flow velocity [(21.62±7.36)ml/s vs.(13.47±5.13)ml/s],maximum blood flow velocity and minimum blood flow velocity ,and significant rise in pulse wave velocity,peripheral resistance,critical pressure,vascular characteristic impedance [(17.35±5.36)kPa ·s-1 ·m-1 vs.(31.68±6.47)kPa· s-1 · m-1 ],and dynamic resistance [(30.59 ± 6.98)kPa· s-1 · m-1 vs. (64.48±12.38)kPa·s-1 ·m-1 ],in basilar artery in study group,P <0.01 all.Conclusion:In patients with hy-pertension complicated retinopathy,cerebral blood supply indexes reduce along with blood pressure rises,CRA blood flow changes can be regarded as a judging basis for disease course development,which deserves highly atten-tion for patients and physicians.
