IgA-dominant post-infectious glomerulonephritis presenting as a fatal pulmonary-renal syndrome

International Journal of Nephrology and Renovascular Disease
Marc SaadSuzanne El-Sayegh

Abstract

Over the last decades, post-infectious glomerulonephritis underwent major changes in its epidemiology, pathophysiology, and outcomes. We are reporting a case of IgA-dominant post-infectious glomerulonephritis (IgA-PIGN) presenting as a fatal pulmonary-renal syndrome. An 86-year-old Filipino man presented with worsening dyspnea, hemoptysis, and decreased urine output over 2 weeks. Past medical history is significant for hypertension, chronic kidney disease stage III, and pneumonia 3 weeks prior treated with intravenous cefazolin for methicillin-sensitive Staphylococcus aureus bacteremia. Physical examination was remarkable for heart rate of 109/min and respiratory rate of 25/min saturating 99% on 3 liters via nasal cannula. There were bibasilar rales in the lungs and bilateral ankle edema. A chest radiograph showed bibasilar opacifications. Blood work was significant for hemoglobin of 8.3 g/dL and creatinine of 9.2 mg/dL (baseline of 1.67). TTE showed EF 55%. Urinalysis revealed large blood and red blood cell casts. Kidney ultrasound showed bilateral echogenicity compatible with renal disease. Pulse methylprednisolone therapy and hemodialysis were initiated with patient's condition precluding kidney biopsy. Serology workup for r...Continue Reading

Citations

Feb 5, 2016·International Journal of Rheumatic Diseases·Srinivas RajagopalaAnudeep Katrevula

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Methods Mentioned

BETA
light microscopy
biopsy
electrophoresis
bronchoalveolar
lavage
electron microscopy
glycosylation

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