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Clin Kidney J . Clinical spectrum of gross haematuria following SARS-CoV-2 vaccination with mRNA vaccines

tetano

Editor, Senior Moderator
Clin Kidney J


. 2021 Dec 21;15(5):961-973.
doi: 10.1093/ckj/sfab284. eCollection 2022 May.
Clinical spectrum of gross haematuria following SARS-CoV-2 vaccination with mRNA vaccines


Alexander Ritter[SUP] 1 [/SUP], Birgit Helmchen[SUP] 2 [/SUP], Ariana Gaspert[SUP] 2 [/SUP], Joerg Bleisch[SUP] 3 [/SUP], Barbara Fritschi[SUP] 4 [/SUP], Florian Buchkremer[SUP] 5 [/SUP], Stephanie Damm[SUP] 6 [/SUP], Nicolas Schmid[SUP] 7 [/SUP], Thomas Schachtner[SUP] 1 [/SUP], Harald Seeger[SUP] 1 [/SUP]



Affiliations

Abstract

Background: Novel messenger RNA (mRNA)-based vaccines play an important role in current vaccination campaigns against SARS-CoV-2. They are highly efficacious and generally well tolerated. Vaccination in patients with immune-mediated kidney diseases is recommended. A number of cases with de novo or relapsing glomerulonephritis shortly after vaccine application have been reported, some of which presented with gross haematuria.
Methods: We collected 10 cases of macrohaematuria following mRNA-based severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination at our tertiary care institution and referring centres. Additionally, we pooled all 25 published cases from the literature with ours to analyse their clinical characteristics.
Results: Most macrohaematuria episodes (72.2%) began within 2 days after vaccination, the majority after the second dose. In some individuals, repeated episodes occurred after subsequent doses of the same vaccine. A total of 65.7% of patients never had macrohaematuria before. A total of 45.7% were known to suffer from immunoglobulin A nephropathy (IgAN); the rest had no prior renal diagnosis. IgAN was the most frequent new diagnosis, but anti-neutrophil cytoplasmic antibody-associated vasculitis and anti-glomerular basement membrane disease were also identified. Acute kidney injury (AKI) occurred in 28.6% of patients, with an increase in serum creatinine not meeting Kidney Disease: Improving Global Outcomes AKI criteria in 28.6%. Treatment ranged from conservative management, renin-angiotensin-aldosterone system inhibitors, steroids and cyclophosphamide to plasmapheresis. While renal outcomes were mainly favourable in isolated IgAN, they were poor in patients with additional or isolated small vessel vasculitis.
Conclusion: Awareness of gross haematuria after SARS-CoV-2 vaccination is important. Close follow-up and additional work up, particularly in individuals without known underlying kidney disease or worsening renal function, is essential. For patients with vaccine-associated macrohaematuria, an alternative vaccine class might be considered for subsequent vaccinations.

Keywords: COVID-19; case series; glomerulonephritis; macrohaematuria; vasculitis.
 
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