Disasters have the potential to cause a surge of patients, some of which may require admission to an intensive care unit (ICU). Due to the high resource requirements of ICUs, normal standards of care may need to be altered to treat more people with limited resources, a care model referred to as crisis standards of care (CSC). The pragmatic implementation of CSC in ICUs due to patient surges from disasters has not been well explored in the literature.

This scoping review guided by the Joanna Briggs institute methodology for scoping reviews searched medical databases including CINHAL, PubMed, ProQuest and SCOPUS. Articles were included if they reflected on the actual implementation of CSC delivered in ICU as a result of a patient surge from a disaster. Quantitative data was extracted into tables and qualitative content was thematically analyzed.

A total of 17 papers were included in the review. The disaster event that dominated the results was COVID-19. Most papers relayed subjective accounts of how care models were impacted by patient surges. Common themes included the repurposing of other clinical areas to accommodate ICU patients, resource shortages (particularly ventilators) and staff shortages. Moral strain was felt when processes such as palliation and treatment modality were altered due to resource restrictions.

This review highlights the dearth of high-quality research in implementing CSC in ICUs. Understanding the pragmatic experiences of CSC shows not only the logistical insufficiencies that have been experienced, but the moral and clinical repercussions that these insufficiencies have caused. Inadequate preparation for future disasters, particularly short notice disasters, may lead to further implementation of CSC resulting in poorer outcomes for patients and detrimental impacts on healthcare workers. More research into the practical application of CSC in ICU may help mitigate the impact of patient surges from disasters.