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Cardiovascular complications in renal failure.

S G Rostand, J D Brunzell, R O Cannon

    Journal of the American Society of Nephrology : JASN
    |December 1, 1991
    PubMed
    Summary

    Cardiovascular disease is a major cause of death in end-stage renal disease (ESRD) patients due to uremia and hypertension. Hypertension exacerbates cardiac issues and contributes to coronary artery disease in ESRD.

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    Area of Science:

    • Nephrology and Cardiology
    • Uremia and Cardiovascular Complications

    Background:

    • Cardiovascular diseases (CVDs) are the primary cause of mortality in end-stage renal disease (ESRD) patients, influenced by aging and uremia-associated cardiac dysfunction.
    • Hypertension, a key factor in renal failure, significantly impacts cardiac health, leading to left ventricular hypertrophy, dilation, wall stress, and impaired coronary circulation.

    Discussion:

    • Hypertension in ESRD patients contributes to atherosclerotic coronary artery disease, compounded by lipid abnormalities like reduced HDL cholesterol and increased triglycerides.
    • Diagnosis of coronary artery disease in ESRD is challenging due to ECG abnormalities and silent disease prevalence, complicating noninvasive assessments.

    Key Insights:

    • ESRD patients exhibit impaired lipid metabolism and cholesterol transport, necessitating potential therapeutic interventions like fibric acids, nicotinic acids, and lovastatin.
    • Autonomic dysfunction, particularly impaired arterial baroreflex function, is implicated in the frequent hypotension observed during dialysis in ESRD patients.

    Outlook:

    • Further research is needed to fully understand sympathetic nervous system function in uremia and its impact on cardiovascular regulation.
    • Direct assessment techniques for sympathetic function are crucial for elucidating the mechanisms behind cardiovascular complications in ESRD.

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