• Robert A Fowler, Philip Abdelmalik, Gordon Wood, Denise Foster, Noel Gibney, Natalie Bandrauk, Alexis F Turgeon, François Lamontagne, Anand Kumar, Ryan Zarychanski, Rob Green, Sean M Bagshaw, Henry T Stelfox, Ryan Foster, Peter Dodek, Susan Shaw, John Granton, Bernard Lawless, Andrea Hill, Louise Rose, Neill K Adhikari, Damon C Scales, Deborah J Cook, John C Marshall, Claudio Martin, Philippe Jouvet, Canadian Critical Care Trials Group, and Canadian ICU Capacity Group.
• Interdepartmental Division of Critical Care Medicine and Department of Medicine, University of Toronto, Toronto, Canada. rob.fowler@sunnybrook.ca.
• Crit Care. 2015 Jan 1;19:133.

IntroductionIntensive Care Units (ICUs) provide life-supporting treatment; however, resources are limited, so demand may exceed supply in the event of pandemics, environmental disasters, or in the context of an aging population. We hypothesized that comprehensive national data on ICU resources would permit a better understanding of regional differences in system capacity.MethodsAfter the 2009-2010 Influenza A (H1N1) pandemic, the Canadian Critical Care Trials Group surveyed all acute care hospitals in Canada to assess ICU capacity. Using a structured survey tool administered to physicians, respiratory therapists and nurses, we determined the number of ICU beds, ventilators, and the ability to provide specialized support for respiratory failure.ResultsWe identified 286 hospitals with 3170 ICU beds and 4982 mechanical ventilators for critically ill patients. Twenty-two hospitals had an ICU that routinely cared for children; 15 had dedicated pediatric ICUs. Per 100,000 population, there was substantial variability in provincial capacity, with a mean of 0.9 hospitals with ICUs (provincial range 0.4-2.8), 10 ICU beds capable of providing mechanical ventilation (provincial range 6-19), and 15 invasive mechanical ventilators (provincial range 10-24). There was only moderate correlation between ventilation capacity and population size (coefficient of determination (R(2)) = 0.771).ConclusionICU resources vary widely across Canadian provinces, and during times of increased demand, may result in geographic differences in the ability to care for critically ill patients. These results highlight the need to evolve inter-jurisdictional resource sharing during periods of substantial increase in demand, and provide background data for the development of appropriate critical care capacity benchmarks.

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