COVID-19 Pandemic Did not Influence Number of Oncologic and Emergency Surgeries: A Retrospective Cohort Study from a Tertiary Hospital in Austria.

Background: Many articles described a massive decline in surgical procedures during the COVID-19 pandemic waves. Especially the reduction in oncologic and emergency procedures led to the concern that delays and cancelling surgical activity might lead to a substantial increase in preventable deaths.

Methods: Overall numbers and types of surgery were analysed in a tertiary hospital in Austria during the winter period (October-April) from 2015/16 to 2021/22. The half-years 2019/20, 2020/21 and 2021/22 were defined as pandemic half-years and were compared with the mean results of the previous, four, pre-pandemic half-years.

Results: A reduction was found for overall numbers and elective surgeries during 2019/20 (4.62%; p < 0.0001 and 12.14; p < 0.0001 respectively) and 2021/22 (14.94%; p < 0.0001 and 34.27; p < 0.0001 respectively). Oncologic surgery increased during 2021/22 (- 12.59%; p < 0.0001) and remained unchanged during the other periods. Emergency surgeries increased during 2019/20 (- 6.97%; p < 0.0001) and during 2021/22 (- 9.44%; p < 0.0001) and remained unchanged during 2020/21.

Conclusions: The concern that the pandemic led to a decrease in oncologic and emergency surgeries cannot be supported with the data from our hospital. A flexible, day-by-day, resource allocation programme with central coordination adhering to hospital resilience recommendations may have helped to adapt to the impact of the COVID-19 pandemic during the first three pandemic half-years.