The retinal hemodynamic changes after panretinal photocoagulation for the patients with early diabetic retinopathy
- VernacularTitle:早期糖尿病视网膜病变激光治疗后视网膜血流动力学变化的意义
- Author:
Qinqi YU
- Publication Type:Journal Article
- Keywords:
Diabetic retinopathy;
Retinal photocoagulation;
Color Doppler flow imaging;
Hemodynamics
- From:
Journal of Chongqing Medical University
1986;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe retinal hemodynamic changes after panretinal photocoagulation for the patients with early diabetic retinopathy.Methods:A total of 52 patients with 75 eyes with DR were enrolled in this study.They were all given standard panretinal photocoagulation,and use color Doppler flow imaging for detection of retinal blood flow dynamics,then gave 3 to 5 months followed up.Results:After treatment,patients with retinal blood perfusion significantly improved,PSV(t = 3.541,P = 0.012),EDV(t = 2.621,P = 0.027),PI(t = 3.321,P = 0.019) and Vm(t = 3.002,P = 0.021) were increased,while the RI decreased(t = 4.002,P = 0.007).After 3 to 5 months follow-up,the visual acuity of 66 eyes improved,efficiency 88.0%.Visual acuity was related with PSV(r = 0.784,P = 0.018),RI(r = 0.801,P = 0.008) and Vm(r = 0.752,P = 0.031).The retinal blood flow dynamics was an independent risk factor for visual acuity after photocoagulation(P = 0.018).Conclusion:Panretinal photocoagulation can improve retinal blood perfusion for early stage of diabetic retinopathy,which is related to improvement of postoperative visual prognosis.
