Cardiovascular disease is the leading cause of death in the dialysis population. But the risk stratification for these patients is difficult, as there are many factors, that have to be considered. That is why an alternate tool for the estimation of the cardiovascular risk has to be found for people in need of dialysis treatment. There are several studies, showing a relation between abnormal retinal vessel diameters and the risk of cardiovascular disease, but none of them focusses on people with dialysis treatment. This study is the first to analyze the relationship between changes in retinal vessel diameters and an increasing risk of mortality for people undergoing dialysis treatment.
Methods: Retinal photographs were taken from 198 patients on dialysis treatment. Retinal arteriolar and venular diameters were measured from these digital retinal images, using a standardized method, and were summarized as central retinal arteriolar equivalent (CRAE), central retinal venular equivalent (CRVE) and their ratio (AVR). Associations between retinal vessel diameters and their relation to cardiovascular risk factors and all-cause-mortality were examined.
Results: 29 (14%) of the 198 patients died during follow up. Lower CRAE and CRVE were associated with diabetes and male sex. Men with coronary heart disease also showed a lower CRAE. There was a relationship between lower AVR and diabetes. Hypercholesterinaemia, obesity and peripheral arterial disease were not associated with any changes in retinal vessel diameters. There was no relationship between abnormal retinal vessel diameters and a higher risk of mortality for patients on dialysis treatment.
Conclusion: Changes in retinal vessel diameters were associated with a lot of cardiovascular risk factors in patients on dialysis treatment, but there was no relationship between abnormal retinal vessel diameters and an increased risk of all-cause-mortality.
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Cardiovascular disease is the leading cause of death in the dialysis population. But the risk stratification for these patients is difficult, as there are many factors, that have to be considered. That is why an alternate tool for the estimation of the cardiovascular risk has to be found for people in need of dialysis treatment. There are several studies, showing a relation between abnormal retinal vessel diameters and the risk of cardiovascular disease, but none of them focusses on people with...
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