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Therapeutic effect and prognostic factors of vitrectomy for proliferative diabetic retinopathy in patients with chronic renal failure

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Author:
No author available
Journal Title:
Chinese Journal of Ocular Fundus Diseases
Issue:
2
DOI:
10.3760/cma.j.cn511434-20221030-00564
Key Word:
糖尿病视网膜病变;慢性肾衰竭;玻璃体切除术;血液透析;复发性玻璃体积血;新生血管性青光眼;Diabetic retinopathy;Chronic renal failure;Vitrectomy;Hemodialysis;Postoperative vitreous hemorrhage;Neovascular glaucoma

Abstract´╝Ü Objective:To investigate the efficacy and prognostic factors of pars plana vitrectomy (PPV) in the treatment of proliferative diabetic retinopathy (PDR) with chronic renal failure (CRF).Methods:A retrospective study. From January 2016 to June 2021, a total of 82 eyes of 58 patients diagnosed with PDR combined with CRF and treated with PPV in Department of Ophthalmology, The Second Hospital of Hebei Medical University were included in the study. There were 32 cases in males and 26 cases in females. The mean age was (48.45±10.41) years. The course of renal failure was (4.15±3.23) years, and the course of diabetes was (14.45±6.71) years. All patients undergo best-corrected visual acuity (BCVA). The BCVA examination was performed using the international standard Snellen visual acuity chart, which was converted to logarithm of the minimum angle of resolution (logMAR) visual acuity for recording. The mean number of logMAR BCVA was 2.04±0.82 (0.7-2.8). The duration of vitreous hemorrhage averaged (2.65±1.55) months. There were 38 eyes (46.3%, 38/82) with traction retinal detachment; 32 eyes had a history of panretinal photocoagulation (PRP) treatment (39.0%, 32/82). All eyes were treated with 25G PPV. Patients with traction retinal detachment were treated with intravitreal injection of anti-vascular endothelial growth factor (VEGF) 3 days before surgery. Opacification of the lens affected the operation operator combined with phacoemulsification. Biochemical indexes such as hemoglobin, glycosylated hemoglobin, albumin, creatinine, uric acid, and alternative treatment (non-dialysis/hemodialysis/peritoneal dialysis) were collected. Postoperative follow-up time was ≥6 months. χ2 test or Fisher's exact test were used for comparison between groups. A logistic regression model was used for multivariate analysis, and Spearman correlation analysis was used to evaluate the correlations between variables. Results:At 6 months after surgery, the mean logMAR BCVA was 1.16±0.57. Compared with logMAR BCVA before surgery, the difference was statistically significant ( t=-0.837, P<0.001); 44 eyes had BCVA ≥0.1 and 38 eyes had BCVA <0.1. Postoperative vitreous hemorrhage (PVH) was observed in 17 eyes after surgery (20.7%, 17/82). PVH occurred in 15 (46.9%, 15/32), 1 (2.3%, 1/44), and 1 (16.7%, 1/6) eyes in patients without dialysis, hemodialysis and peritoneal dialysis, respectively. There was significant difference between those without dialysis and those on hemodialysis ( χ2=26.506, P<0.05). There was no significant difference between peritoneal dialysis patients and those without dialysis and hemodialysis patients ( χ2=2.694, 2.849; P>0.05). PVH occurred in 3 (10.0%, 3/30) and 14 (27.0%, 14/52) eyes of vitreous cavity filled with silicone oil and perfusion fluid, respectively. The difference was statistically significant ( χ2=3.315, P<0.05); 1 (33.3%, 1/3) and 10 (71.4%, 10/14) eyes were treated with PPV again, respectively, and the difference was statistically significant ( P<0.05). Neovascular glaucoma (NVG) occurred in 12 eyes (14.6%, 12/82). Logistic regression analysis showed that age [odds ratio ( OR) =0.911, P<0.05], diabetic retinopathy (DR) stage ( OR=7.229, P<0.05), renal failure duration ( OR=0.850, P<0.05), operation time ( OR=1.135, P<0.05) was an independent risk factor for poor vision prognosis. Diabetes duration ( OR=1.158, P<0.05), renal failure duration ( OR=1.172, P<0.05) and alternative therapy were independent factors affecting the occurrence of PVH. Diabetes duration ( OR=1.138, P<0.05) and renal failure duration ( OR=1.157, P<0.05) were independent risk factors for postoperative NVG. Spearman correlation analysis showed that PVH was strongly correlated with post-operative NVG ( r=0.469, P<0.01). There was no significant correlation between blood glucose, hemoglobin, creatinine and blood urea nitrogen and prognosis of postoperative vision, PVH and NVG occurrence ( P>0.05). Conclusions:In PDR patients with CRF, DR Stage, age, renal failure course and operation duration are correlated with vision prognosis. Compared with those who do not receive alternative therapy, hemodialysis treatment can reduce the occurrence of PVH and NVG after surgery.

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