An implication of relationship between tuberculosis and primary nephrotic syndrome

Area of Science:

• Nephrology
• Infectious Diseases
• Pediatrics

Background:

• The co-occurrence of tuberculosis (TB) and primary nephrotic syndrome (PNS) is infrequently documented.
• Understanding the relationship between TB and PNS is crucial for accurate diagnosis and management.

Purpose of the Study:

• To investigate the association between tuberculosis (TB) and primary nephrotic syndrome (PNS).
• To define the relationship between TB and PNS from multiple clinical, laboratory, and radiographic perspectives.

Main Methods:

• Patients with PNS, secondary nephrotic syndrome (SNS), pneumonia, and TB were enrolled.
• A novel evaluation system classified TB infection evidence into 5 levels.
• The study recorded whether TB infection was primary or secondary to steroid therapy for PNS.

Main Results:

• Over 42% of PNS inpatients showed evidence of TB (level 1-4), significantly higher than in SNS or pneumonia groups.
• Approximately 9% of PNS patients had strong evidence of TB (level 3-4), with most cases predating PNS onset.
• Chest imaging was abnormal in over 60% of PNS inpatients, and TB patients exhibited more abnormal urinalysis than pneumonia patients.

Conclusions:

• Around 10% of pediatric primary nephrotic syndrome cases are associated with tuberculosis infection.
• The majority of these TB infections preceded the onset of primary nephrotic syndrome.
• TB should be considered in the differential diagnosis of pediatric PNS, especially when clinical symptoms are atypical.