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Related Experiment Videos

High renin hypertension in the elderly.

Y Takayama, K Yamaoki, A Seki

    Japanese Heart Journal
    |March 1, 1987
    PubMed
    Summary

    Elderly patients with high renin hypertension often show rapid blood pressure acceleration and are more likely to have renovascular hypertension. This suggests a link between high renin levels and specific clinical markers in older adults.

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    Area of Science:

    • Nephrology
    • Geriatrics
    • Cardiology

    Background:

    • Hypertension is a common condition in the elderly.
    • High renin activity is a less understood subtype of hypertension, particularly in older populations.

    Purpose of the Study:

    • To describe the clinical features of high renin hypertension in elderly patients.
    • To investigate the association between high renin activity and specific clinical manifestations and potential underlying causes like renovascular hypertension.

    Main Methods:

    • Study included 59 hypertensive patients aged 70-86.
    • Patients were divided into high renin (PRA ≥ 3.0 ng/ml/hr) and control groups.
    • Clinical features, including blood pressure, proteinuria, potassium, cholesterol levels, and history of hypertension progression, were compared.

    Main Results:

    • High renin group showed significantly higher rates of accelerated hypertension, high diastolic blood pressure, massive proteinuria, hypokalemia, and high serum cholesterol compared to controls.
    • Renovascular hypertension was suspected in 66.7% of the high renin group versus 2.0% of the control group.
    • Massive proteinuria and nephrotic syndrome were observed in patients with suspected renovascular hypertension within the high renin group.

    Conclusions:

    • Elderly patients with high renin hypertension exhibit distinct clinical features, including rapid progression and specific biochemical abnormalities.
    • A significant proportion of elderly patients with high renin hypertension likely have underlying renovascular hypertension.
    • These findings highlight the importance of investigating renovascular causes in elderly hypertensive patients with high renin activity.

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