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Relationship between nailfold capillaroscopy parameters and the severity of diabetic retinopathy
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Relationship between nailfold capillaroscopy parameters and the severity of diabetic retinopathy
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Journal Article
Relationship between nailfold capillaroscopy parameters and the severity of diabetic retinopathy
2024
Overview
Purpose
To determine whether non-invasive measurements of the nailfold capillaries (NCs) are associated with the presence and severity of diabetic retinopathy (DR) in patients with type 2 diabetes.
Methods
Eighty-three eyes of 83 patients with type 2 diabetes were enrolled. Sixty-three age-matched non-diabetic subjects served as controls. Diabetic patients were classified by the severity of their DR: non-DR (NDR), non-proliferative DR (NPDR), and proliferative DR (PDR). We used nailfold capillaroscopy to measure NC parameters, including number, length, width, and turbidity.
Results
Four NC parameters in the diabetic patients were significantly lower than in the controls (all
P
< 0.001). There was a statistically significant decrease in the NC parameters along with the increasing severity of DR (number:
P
= 0.02; all others:
P
< 0.001). Logistic regression analysis revealed that combining the systemic characteristics of age, sex, systolic blood pressure, estimated glomerular filtration rate, hemoglobin A1c level, and history of hypertension and dyslipidemia could indicate the presence of DR and PDR (the area under the receiver operating characteristic curve [AUC] = 0.81,
P
= 0.006; AUC = 0.87,
P
= 0.001, respectively). Furthermore, the discriminative power of DR was significantly improved (
P
= 0.03) by adding NC length to the systemic findings (AUC = 0.89,
P
< 0.001).
Conclusion
NC measurement is a simple and non-invasive way to assess the risk of DR and its severity.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
