Health care system efficiency in otolaryngological surgeries during COVID-19 pandemic in years 2020-2021 compared to years 2018-2019: data from the Military Institute of Medicine in Warsaw.

<b>Introduction:</b> Coronavirus disease 19 (COVID-19) pandemic had a great impact on the health care system. This resulted not only from changes in the way medical facilities operated but also from the need to treat a huge number of patients. On the other hand, uninfected people feared visiting the doctor.</br></br> <b>Aim:</b> The aim of the study was to assess the impact of the COVID-19 pandemic on the diagnostics and treatment of patients with head and neck cancer.</br></br> <b>Materials and methods:</b> This retrospective study involved analysis of data of patients from a single hospital unit who underwent surgical procedures due to head and neck cancer during the COVID-19 pandemic in years 2020-2021 (pandemic group) compared to years 2018-2019 (pre-pandemic group).</br></br> <b>Results:</b> Patients in the pandemic group (n = 123) were older and were more likely to have grade 3 cancer than patients in the pre-pandemic group (n = 116). Cancer stages were similar in both groups. During the pandemic, time from the first outpatient visit to surgery was longer (median 1.6 vs. 0.8 months), while time to radiotherapy was shorter (median 50.5 vs. 63 days) than in the pre-pandemic period.</br></br> <b>Conclusion:</b> During the pandemic, patients had to wait slightly longer for surgery but not for radiotherapy when compared with the pre-pandemic period. Despite this, they did not have more advanced disease.