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COVID-19 Infection associated with Risk of Chronic Rhinosinusitis, suggests study
Researchers have discovered in a new research that COVID-19 infection is associated with an increased risk of a subsequent diagnosis of chronic rhinosinusitis (CRS). This suggests a possible link between COVID-19 and the development of ongoing sinonasal inflammatory disease. However, further research is required to clarify the underlying mechanisms and to better define this relationship.
A study was done to analyze the impact of COVID-19 infection on the diagnosis of chronic rhinosinusitis (CRS).
TriNetX, a large international database of anonymized health records, was queried for adults with either positive or negative SARS-CoV-2 polymerase chain reaction (PCR) tests between March 1, 2020 and December 31, 2024. Patients with cancer or immunodeficiency before the COVID-19 diagnosis were excluded. Propensity score matching was used to create comparable exposure and control groups. Relative risk ratios and Cox proportional hazards regression analysis of CRS diagnosis were calculated 3 months after PCR testing. Sub-analyses were completed to investigate the effects of prior COVID-19 infection on subsequent CRS development stratified by prior vaccination status and by variant-dominant time periods (pre-Delta, Delta, and Omicron).
Results: Propensity score-matched COVID-19+ and COVID-19− cohorts each consisted of 2,135,446 patients. Rate of diagnosis of CRS increased following a positive COVID-19 PCR test (RR = 2.13, 95% CI [2.10–2.16]) and varied across variant-dominant periods, with risk ratios of 1.44 (95% CI [1.41–1.47]) during pre-Delta, 1.20 (95% CI [1.15–1.25]) during Delta, and 2.10 (95% CI [2.07–2.13]) during Omicron. Prior COVID-19 vaccination did not modify the risk of CRS among patients with a positive COVID-19 PCR (RR = 0.98, 95% CI [0.92–1.05]).
COVID-19 infection was found to increase the risk of subsequent diagnosis of CRS. Further studies are needed to better understand the relationship between COVID-19 and the development of sinonasal inflammatory pathology.
Reference:
Z. Whong, A. Malik, A. N. Calder, M. F. Armstrong, and T. A. Schuman, “ COVID-19 Infection Increases the Risk of Subsequent Diagnosis of Chronic Rhinosinusitis,” The Laryngoscope (2026): 1–6, https://doi.org/10.1002/lary.70444.
Keywords:
COVID-19, Infection, Risk, Chronic Rhinosinusitis, The Laryngoscope, Z. Whong, A. Malik, A. N. Calder, M. F. Armstrong, and T. A. Schuman,
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