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Washout urography in the diagnosis of renal hypertension

W El-Said

    International Urology and Nephrology
    |January 1, 1978
    PubMed

    Insights

    Washout urography effectively screened hypertensive patients for kidney issues. It identified renovascular hypertension and unilateral pyelonephritis by noting restricted kidney size changes after Lasix injection.

    Area of Science:

    • Nephrology
    • Radiology
    • Hypertension Research

    Background:

    • Hypertension is a significant health concern.
    • Renal causes of hypertension require accurate diagnosis.
    • Screening tools for renovascular hypertension are crucial.

    Purpose of the Study:

    • To evaluate washout urography as a screening tool for hypertensive patients.
    • To identify specific renal pathologies causing hypertension.

    Main Methods:

    • Washout urography was performed on 100 hypertensive patients.
    • Lasix injection was used to assess kidney size changes.
    • Renal artery stenosis and pyelonephritis were key conditions investigated.

    Main Results:

    • Eleven patients (11%) were diagnosed with renal hypertension.
    • Diagnoses included unilateral renal artery stenosis (4 cases), unilateral pyelonephritis (6 cases), and bilateral pyelonephritis with renal artery atherosclerosis (1 case).
    • Affected kidneys showed restricted size increase post-Lasix compared to contralateral kidneys.

    Conclusions:

    • Washout urography is a valuable screening test for renovascular hypertension.
    • The technique is effective in identifying unilateral pyelonephritis.
    • Assessing kidney size changes after Lasix aids in diagnosing renal hypertension.

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