Pose-Reino Antonio, Rodríguez-Fernández Marta, Hayik Bashir, Goméz-Ulla Irazabal Francisco, Carrera-Nouche María José, González-Barcala Javier, Méndez-Naya Isabel, Estévez-Núñez Juan Carlos
Servicio de Medicina Interna, Hospital de Conxo, Complexo Hospitalario Universitario, Santiago de Compostela, A Coruña, España.
Med Clin (Barc). 2007 Apr 28;128(16):605-8. doi: 10.1157/13101743.
The possibility to aplicate a semi-automatic computerized system to evaluate the calibre of retinal blood vessels, has shown very good reproducibility, and have let us measure the calibres of retinal arterioles and veins, and their ratio (AVR).
We have measured the calibres of retinal vessels in a group of 51 hypertensive outpatients before and after 6 months' treatment with losartan or, losartan plus hydrochlorothiazide if the association was required to adequate control of the blood pressure.
AVR increased from 0.7530 (0.03) to 0.7563 (0.03) (p = 0.005). We have related these modifications with damage in other target organs and we have found out a inverse relation between AVR and left ventricular mass index. This relation could be confirmed in multiple regression analysis. We have found no relation between AVR and microalbuminuria, probably because of its variability.
These results suggest a relation between retinal microcirculation and hypertensive cardiopathy, but they should be interpreted with caution because the sample is small.
应用半自动计算机系统评估视网膜血管管径已显示出很好的可重复性,这使我们能够测量视网膜小动脉和小静脉的管径及其比值(动静脉比值,AVR)。
我们对一组51例高血压门诊患者在使用氯沙坦治疗6个月前后测量了视网膜血管管径,若联合用药(氯沙坦加氢氯噻嗪)有助于血压的充分控制,则采用联合用药。
AVR从0.7530(0.03)增至0.7563(0.03)(p = 0.005)。我们将这些变化与其他靶器官损害相关联,发现AVR与左心室质量指数呈负相关。这种关系在多元回归分析中得到证实。我们未发现AVR与微量白蛋白尿之间存在关联,可能是由于其变异性。
这些结果提示视网膜微循环与高血压性心脏病之间存在关联,但由于样本量小,应谨慎解释。