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Related Experiment Videos

Reduced renal function in patients with simple renal cysts.

Jafar Al-Said1, Michael A Brumback, Sammy Moghazi

  • 1Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia 30322, USA.

Kidney International
|May 20, 2004
PubMed
Summary

Kidney cysts, even single ones, can indicate reduced kidney function in patients under 60. This suggests acquired cystic kidney disease may start early, warranting consideration of underlying renal issues.

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Area of Science:

  • Nephrology
  • Radiology
  • Internal Medicine

Background:

  • Sporadic renal cysts are common and usually considered clinically insignificant.
  • However, multiple cysts are frequent in end-stage renal disease (ESRD).
  • This study investigated if solitary or few cysts signal early reduced kidney function.

Purpose of the Study:

  • To test the hypothesis that solitary or few renal cysts are an early sign of diminished renal function.
  • To explore the relationship between renal cyst presence and kidney function parameters.

Main Methods:

  • Evaluated 561 hospitalized patients undergoing contrast-enhanced abdominal computed tomography (CT).
  • Correlated clinical characteristics and renal function parameters with the presence or absence of renal cysts.

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  • Utilized multivariate analysis to assess correlations, controlling for age and gender.

    • Main Results:

    • Renal cyst presence significantly correlated with older age, higher serum creatinine, and lower estimated creatinine clearance.
    • Estimated creatinine clearance remained correlated with cyst presence in multivariate analysis (P=0.009).
    • This correlation was observed in patients younger than 60, but not in older groups, suggesting an age-dependent relationship.

    Conclusions:

    • Renal cysts, including single ones, are associated with reduced renal function in hospitalized patients under 60.
    • This association may be masked in older individuals due to higher cyst incidence and reduced function.
    • Findings suggest acquired cystic kidney disease can manifest early, and underlying renal disease should be considered in younger patients with renal cysts.