An open intensive care unit (ICU) model is a viable option for the acute expansion of ICU capacity in the state sector: A study of a needs-based strategy during the COVID-19 pandemic in a tertiary ICU in South Africa

<b>What the study adds.</b> This retrospective study compared outcomes of non-COVID patients in a closed intensive care unit (ICU) v. a temporary open unit during the pandemic. The efficacy of open v. closed ICU models remains uncertain in the South African context. The study offers insights into the effectiveness of open and closed ICU models, particularly in the context of crises during which institutions may face a critical care resource shortage.<b>Implications of the findings.</b> The study suggests that incorporating open ICU units during crises can manage patient surges effectively without compromising outcomes. It contributes to the existing literature by providing practical implications for resource management, clinical practice and future research, ensuring quality patient care while optimising critical care capacity.