Abstract
Patients with end-stage renal disease have a high mortality, with the majority of deaths due to vascular disease. The prevalence of vascular risk factors and vascular disease in predialysis chronic renal failure (CRF) is poorly characterized. The aim of the present study was to determine the prevalence of vascular risk factors and clinically overt vascular disease in an Australian cohort of patients with predialysis CRF. We performed a retrospective chart review of outpatients with CRF and noted demographic data, the cause of renal failure, the presence or otherwise of vascular risk factors and vascular disease and calculated glomerular filtration rate. The prevalence of overt vascular disease and modifiable vascular risk factors was calculated. One hundred and eighty patients completed the study. Eighty-nine per cent of patients had hypertension, 68% had dyslipidaemia, 32% were diabetic and 38% were previous smokers. The subgroup with diabetic nephropathy had significantly more risk factors (P < 0.001) than other groups. Twenty-seven per cent of the group had cardiovascular disease, 22% had cerebrovascular disease, 23% had peripheral vascular disease and 9% had renal artery stenosis. Patients with ischaemic nephropathy had significantly more vascular disease than other groups (P < 0.001). Patients with overt vascular disease were older, had a higher number of risk factors and a higher calcium phosphate product than those without vascular disease. In conclusion, the present study suggests a high prevalence of vascular risk factors and vascular disease in predialysis CRF. Early detection provides an opportunity for early intervention and may help reduce the development of vascular disease, and the associated mortality, once these patients progress to dialysis.
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