Incidence of emergency calls and out-of-hospital cardiac arrest deaths during the COVID-19 pandemic: findings from a cross-sectional study in a UK ambulance service

Abstract

Background: In response to the COVID-19 pandemic, a national lockdown was introduced on 23 March 2020. In the following weeks, emergency departments in the UK reported a reduction in attendances. We aimed to explore the incidence of emergency calls across North East England, as well as the number of out-of-hospital cardiac arrest (OHCA) deaths.

Methods: Data were collected for all patients who contacted North East Ambulance Service between 4 March 2019-2 June 2019 and 2 March 2020-31 May 2020 suffering stroke, ST elevation myocardial infarction, allergy, asthma, chronic obstructive pulmonary disease, falls, intoxication, seizure, sepsis, acute coronary syndrome and OHCA.

Results: There were a reduction in incidence of calls, excluding OHCA, resulting in ambulance activation during the pandemic compared with same period in 2019, 16 743 versus 19 639, respectively (-14.74%). The decline in calls was partially reversed by the end of May 2020. Incidence of OHCA at the time of the national lockdown had increased by 13.79% with a peak increase of 73.56% in the second week in April 2020. OHCA deaths peaked in the first 2 weeks in April 2020, 95.65% and 90.07%, respectively, but by the end May 2020, incidence of OHCA and OHCA deaths had returned to prelockdown levels.

Conclusion: Incidence of emergency calls were reduced during the pandemic compared with 2019. There was a rise in incidence of OHCA and OHCA deaths during the same period; however, these changes appear transient. Further research is required to understand patient behaviour towards seeking help during the pandemic and the long-term consequences of not doing so.

Keywords: COVID-19; cardiac arrest; despatch; emergency ambulance systems; prehospital care.