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Association between COVID-19 vaccination and relapse of glomerulonephritis.
Clinical and Experimental Nephrology 2022 November 24
BACKGROUND: Vaccines for coronavirus disease 2019 (COVID-19) have been developed and are recommended for patients with chronic kidney disease; however, it has been reported that glomerulonephritis worsens after vaccination. We aimed to elucidate the incidence and association between COVID-19 vaccination and glomerulonephritis relapse.
METHODS: We investigated the onset of renal events and adverse reactions after COVID-19 vaccination in 111 patients diagnosed with glomerulonephritis. Renal events were defined as worsening hematuria, increased proteinuria, and an increased creatine level over 1.5-fold from baseline.
RESULTS: Patients were 57 ± 18 years old (55.9% female) and had an estimated glomerular filtration rate of 57.0 ± 25.0 ml/min/1.73 m2 . A pathological diagnosis of IgA nephropathy was confirmed in 55.0%, minimal change disease in 22.5%, and membranous nephropathy in 10.8% of the patients. The BNT162b2 (Pfizer) and mRNA-1273 (Moderna) vaccines were administered in 88.2% and 11.7% of the cases, respectively. Renal events were observed in 22.5% of patients, 10.8% had increased proteinuria, 12.6% had worsening hematuria, and 1.8% received additional immunosuppressive treatment. Only 0.9% required temporary hemodialysis from exacerbation of renal dysfunction. Renal events were higher in younger patients (P = 0.02), being highest in those with IgA nephropathy, but there was no difference in the incidence between pathological diagnoses. There was a significantly higher incidence of renal events in patients with fever (P = 0.02).
CONCLUSIONS: COVID-19 vaccination and glomerulonephritis relapse may be related, but further research is needed.
METHODS: We investigated the onset of renal events and adverse reactions after COVID-19 vaccination in 111 patients diagnosed with glomerulonephritis. Renal events were defined as worsening hematuria, increased proteinuria, and an increased creatine level over 1.5-fold from baseline.
RESULTS: Patients were 57 ± 18 years old (55.9% female) and had an estimated glomerular filtration rate of 57.0 ± 25.0 ml/min/1.73 m2 . A pathological diagnosis of IgA nephropathy was confirmed in 55.0%, minimal change disease in 22.5%, and membranous nephropathy in 10.8% of the patients. The BNT162b2 (Pfizer) and mRNA-1273 (Moderna) vaccines were administered in 88.2% and 11.7% of the cases, respectively. Renal events were observed in 22.5% of patients, 10.8% had increased proteinuria, 12.6% had worsening hematuria, and 1.8% received additional immunosuppressive treatment. Only 0.9% required temporary hemodialysis from exacerbation of renal dysfunction. Renal events were higher in younger patients (P = 0.02), being highest in those with IgA nephropathy, but there was no difference in the incidence between pathological diagnoses. There was a significantly higher incidence of renal events in patients with fever (P = 0.02).
CONCLUSIONS: COVID-19 vaccination and glomerulonephritis relapse may be related, but further research is needed.
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