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Covert bacteriuria in nephrotic syndrome.

U S Rai1, U Kumar, H Kumar

  • 1Department of Nephrology, Indira Gandhi Institute of Madical Sciences, Patna.

Indian Journal of Pathology & Microbiology
|May 25, 2002
PubMed
Summary

Covert bacteriuria affects 18.53% of nephrotic syndrome patients, with Escherichia coli being the most common pathogen. This condition is linked to lower serum albumin and higher urinary protein levels.

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Area of Science:

  • Nephrology
  • Infectious Diseases
  • Urology

Background:

  • Nephrotic syndrome is a kidney disorder characterized by proteinuria, edema, and hypoalbuminemia.
  • Covert bacteriuria, the presence of bacteria in urine without symptoms, is a potential complication in various patient groups.
  • Kidney biopsy is a diagnostic procedure for evaluating kidney diseases, including nephrotic syndrome.

Purpose of the Study:

  • To determine the prevalence of covert bacteriuria in patients with nephrotic syndrome undergoing kidney biopsy.
  • To identify common uropathogens and associated clinical and histopathological findings in bacteriuric patients.

Main Methods:

  • A cross-sectional study was conducted on 205 patients with nephrotic syndrome admitted for kidney biopsy.
  • Urine samples were analyzed for bacterial growth to detect bacteriuria.

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  • Clinical parameters (serum albumin, 24-hour urinary protein) and histopathological findings were assessed.

    • Main Results:

    • Covert bacteriuria was detected in 18.53% (38/205) of patients.
    • Escherichia coli was the most frequent organism (78.9%), predominantly in male patients.
    • Bacteriuric patients exhibited lower serum albumin and higher 24-hour urinary protein excretion compared to abacteriuric patients.
    • Membranous nephropathy was the most common histopathological finding (39.47%) among bacteriuric patients.

    Conclusions:

    • Covert bacteriuria is a significant finding in nephrotic syndrome patients undergoing kidney biopsy.
    • The presence of bacteriuria correlates with specific clinical markers and kidney pathology.
    • Further investigation into the management and implications of covert bacteriuria in this population is warranted.