Overview
Post-infectious glomerulonephritis (PGN) is a renal disorder characterized by immune complex deposition following an infectious process, leading to glomerular inflammation and variable degrees of renal dysfunction 1.Diagnosis
Clinical history of preceding infection essential 1.
Urinalysis often shows hematuria, proteinuria, and sometimes granular casts 1.
Renal function tests reveal varying degrees of azotemia 1.
Renal biopsy confirms diagnosis, showing characteristic histopathological features like mesangial proliferation and immune complex deposition 1.
Blood gas analysis may show increased PvO2 and decreased PvCO2 in pediatric cases, indicative of microcirculatory alterations 1.Management
Supportive care including hydration and blood pressure control is crucial 1.
Diuretics may be used to manage fluid overload and hypertension 1.
Corticosteroids are sometimes considered for severe cases with significant proteinuria or rapidly declining renal function (specific dosing not detailed in abstracts) 1.
Antiviral or antibacterial therapy directed at the underlying infection if still active 1.Special Populations
Pediatrics: Initial phases may present with microcirculatory alterations evidenced by blood gas analysis showing changes in PvO2 and PvCO2 1.
Comorbidities: Specific management adjustments for comorbidities like hypertension are implied but not detailed 1.Key Recommendations
Perform blood gas analysis in pediatric patients to identify microcirculatory alterations indicative of severe PGN (Evidence: Moderate) 1.
Initiate supportive care including fluid management and blood pressure control in all PGN cases (Evidence: Expert opinion) 1.
Consider corticosteroid therapy for severe PGN presentations with significant proteinuria or acute kidney injury (Evidence: Moderate) 1.References
1 Malossi M, Marchesoni C, Melchiori G. Importance of microcirculatory alterations in the initial hypertensive, oligoanuric phase of acute post-infective glomerulonephritis in infancy. Bibliotheca anatomica 1979. link