Retinal oxygen saturation and vessel diameter in patients with chronic kidney disease.

Acta Ophthalmologica
Ruibao LiuJunguo Duan

Abstract

To investigate changes in retinal oximetry and the diameter of retinal vasculature in patients with chronic kidney disease (CKD) and relationships between retinal vasculature and the estimated glomerular filtration rate (eGFR), provide a scientific basis for the early detection and diagnosis of CKD. Eighty-three patients with CKD and 103 healthy individuals were included after providing informed consent. All participants were examined using a noninvasive technology (Oxymap Inc., Reykjavik, Iceland) for measuring the arterial (SaO2 ) and venous (SvO2 ) oxygen saturation and the arteriovenous difference in oxygen saturation (Sa-vO2 ). The corresponding retinal vessel diameters of these arterioles (D-A) and venules (D-V) were measured. The eGFR of patients with CKD was calculated from the serum creatinine concentration. In general, patients with CKD had higher mean SaO2 values than healthy individuals (100.15 ± 4.68% versus 97.14 ± 4.22%; p < 0.001, mean ± SD). The mean SaO2 in the superior temporal, superior nasal and inferior nasal quadrants significantly increased. There was no significant difference measured in the SvO2 when patients with CKD (63.66 ± 5.29%) and healthy individuals (62.70 ± 5.27%) were compared. The mean Sa-vO...Continue Reading

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Citations

Dec 1, 2021·Acta Ophthalmologica·Aditya V BelamkarAmir R Hajrasouliha

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