Crescentic glomerulonephritis in a child with infective endocarditis

Banu Sadikoglu1, Ilmay Bilge, Isin Kilicaslan

  • 1Istanbul Medical Faculty, Department of Pediatrics, Division of Pediatric Nephrology, Istanbul University, 34390 Capa, Istanbul, Turkey. banusadikoglu@hotmail.com

Insights

Infective endocarditis (IE) rarely causes crescentic glomerulonephritis (CGN) and renal failure in children. Aggressive immunosuppression alongside antibiotics improved a young boy's condition, highlighting a crucial treatment approach.

Area of Science:

  • Pediatric Nephrology
  • Infectious Diseases
  • Cardiology

Background:

  • Infective endocarditis (IE) can cause various renal complications.
  • Diffuse proliferative glomerulonephritis is the most common renal finding in IE.
  • Crescentic glomerulonephritis (CGN) leading to renal failure in children with IE is exceptionally rare.

Observation:

  • A 6-year-old boy with a history of cardiac surgery presented with IE symptoms, hematuria, and renal failure.
  • The patient exhibited signs of CGN on renal biopsy.
  • The child had undergone prior cardiac surgery for pulmonary atresia and ventricular septal defect.

Findings:

  • Treatment involved intravenous methylprednisolone pulses, antibiotics, and a single dose of intravenous cyclophosphamide.
  • The patient achieved complete serological, biochemical, and clinical improvement within 2 months.
  • This case demonstrates successful management of IE-associated CGN in a pediatric patient.

Implications:

  • Antibiotic therapy is fundamental for IE-associated glomerulonephritis.
  • Aggressive immunosuppressive therapy is vital for managing the immunological component of this life-threatening condition.
  • Early and combined treatment strategies can lead to favorable outcomes in pediatric IE with renal failure.

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