The economic impact of sudden cardiac arrest

Background: There are 20,000 sudden cardiac arrests (SCAs) in Australia annually, with 90% case-fatality. Objective: The present study calculated both the health and economic impact of SCAs in Victoria, Australia. Methods: Data on all SCAs attended by Ambulance Victoria from July 2017 to June 2018 were collected regarding age, gender, and survival to hospital, discharge and 12 months. Pre-SCA employment status of all patients was modelled using age and gender-matched Australian economic data. A Markov state-transition model with a five-year horizon calculated health and economic impact in years of life lived (YLL), productivity-adjusted life years (PALYs) and gross domestic product (GDP) lost. A counterfactual Markov state-transition model assessed outcomes of an identical cohort of patients who did not experience SCA. All values were discounted by 5%. Results: In 12 months, 4637 people suffered SCAs in Victoria, of whom 1516 (32.7%) were working at the time. 695 patients (15.0%) survived to hospital, 325 (7.0%) to discharge, and 303 (6.5%) to 12 months. In five years following their SCA, the cohort lost 15,922 years of life and 2327 PALYs. Reduced productivity led to GDP losses of AUD\$448 million (92.8% relative reduction). Extrapolated to the 20,000 SCAs occurring across all of Australia, total GDP losses approached AUD\$2 billion. Conclusion: The health and economic burden of SCAs is high, predominantly underpinned by very high mortality. Annual national losses approach AUD\$2 billion (USD\$1.42 billion) and are comparable to productivity losses from all cancers combined. Prioritising research and state-of-the-art care for SCA patients appears economically sound.