The impact of the COVID-19 pandemic on nasopharyngeal carcinoma extent at FDG PET/MR staging: The NPCOVIPET study

Head Neck. 2023 Aug;45(8):1979-1985. doi: 10.1002/hed.27424. Epub 2023 Jun 1.

Abstract

Background: To evaluate the impact of coronavirus disease 2019 (COVID-19) pandemic on disease extent in patients with nasopharyngeal carcinoma (NPC) using 18 fuorodeoxyglucose (FDG) positron emission tomography (PET)/magnetic resonance imaging (MRI).

Methods: This retrospective cohort study included biopsy-proven, newly diagnosed NPC patients using whole-body FDG PET/MR staging in two selected intervals: 1 May 2017 to 31 January 2020 (Group A, the pre-COVID-19 period), and 1 February 2020 to 30 June 2021 (Group B, the COVID-19 period).

Results: Three-hundred and ninety patients were included. No significant difference was observed in terms of T classification, N classification, overall stage, N stations, and M stations between the two groups (p > 0.05). For the involved neck node levels, more patients had developed level Vc metastasis in the group B (p = 0.044).

Conclusion: Although the overall stage was not affected, more patients with NPC had developed level Vc metastasis in the era of COVID-19.

Keywords: COVID-19; FDG; nasopharyngeal carcinoma; pandemic; staging.

MeSH terms

  • COVID-19*
  • Fluorodeoxyglucose F18
  • Humans
  • Magnetic Resonance Imaging
  • Nasopharyngeal Carcinoma* / diagnostic imaging
  • Nasopharyngeal Carcinoma* / pathology
  • Nasopharyngeal Neoplasms* / pathology
  • Neoplasm Staging
  • Pandemics
  • Positron-Emission Tomography / methods
  • Radiopharmaceuticals
  • Retrospective Studies
  • Tomography, X-Ray Computed / methods

Substances

  • Fluorodeoxyglucose F18
  • Radiopharmaceuticals