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Prevalence and Risk Factors of Peripheral Arterial Disease Among Thai Dialysis Patients.

Objective
To identify the prevalence and risk factors of peripheral arterial disease (PAD) in dialysis patients covering both hemodialysis and peritoneal dialysis.


Material and Method
All consecutive cases of stable dialysis patients in Ramathibodi hospital from September 2013 to December 2013 were surveyed. Patients were classified as having PAD if they had ankle-brachial blood pressure index (ABI) values of ≤0.9 or >1.4. We also measured toe-brachial blood pressure index (TBI) and TBI ≤0.6 was classified as abnormal TBI. Data were analyzed to identify the prevalence and risk factors of PAD.


Results
Among these 269 stable dialysis patients, the mean age was 48.8±15.1 years and 56.9% were male. The mean dialysis vintage was 52.6±41.8 months. The prevalence of PAD was 11.5% and the prevalence of abnormal TBI was 29.7%. Multivariate regression analysis found that increased body mass index (BMI), history of coronary artery disease (CAD), and increased pulse pressure were associated with PAD.


Conclusion
The prevalence of PAD among long-term stable dialysis patients in Thailand was around one-tenth. The prevalence of abnormal TBI was higher than those of abnormal ABI criteria. Factors associated with PAD were increased BMI, history of CAD, and increased pulse pressure.