[Renal failure as a factor of vascular aging]

Area of Science:

• Nephrology
• Cardiovascular Medicine
• Vascular Biology

Context:

• Chronic renal failure (CRF) patients at the predialysis stage exhibit a high prevalence of atherosclerosis.
• Early detection of vascular changes is crucial for managing cardiovascular risk in this population.

Purpose:

• To determine the frequency and risk factors for developing atherosclerosis (AS) in patients with predialysis chronic renal failure (CRF).

Summary:

• Ultrasound dopplerography was performed on 165 predialysis CRF patients. Atherosclerosis was detected in 37% of patients in the aorta, with varying frequencies in other vessels.
• Key risk factors identified include age, body mass index, hypertension, and phosphorus-calcium metabolism disturbances. Subnormal glomerular filtration rate (GFR) and elevated creatinine were independent predictors of preclinical AS.
• The study found that preclinical AS is three times more common than clinical AS. As CRF progresses, renal risk factors become more impactful, while conventional risk factors diminish.

Impact:

• Findings highlight the significant burden of atherosclerosis in predialysis CRF, emphasizing the need for early screening and intervention.
• The study underscores the combined role of conventional and renal-specific factors in the accelerated vascular aging observed in CRF patients.
• Results suggest that managing both traditional cardiovascular risk factors and renal dysfunction is essential for preventing premature vascular disease in predialysis CRF.