Background:
Early mobilisation in critical care is recommended within clinical guidance however prevalence across the United Kingdom (UK) is unknown. The study aimed to determine the proportion of patients mobilised within 48-72 hours, to describe their physiological status, and to compare this to published consensus safety recommendations for out-of-bed activity.
Methods:
A UK cross-sectional, multi-centre, observational study of adult critical care mobility practices was conducted. Demographic and physiological data, mobility level, and rationale for not mobilising were collected for all patients on one day. Patients were analysed in one of 3 groups;mobilised; not mobilised; or excluded. Regression analysis was used to compare the physiological parameters of the mobilised versus not-mobilised groups. Patients were stratified using published safety criteria; ‘low-risk’ of an adverse event, ‘potential-risk’, ‘high-risk’. Rationale for the decision to not mobilise was collected qualitatively.
Results: Data were collected for 960 patients across 84 UK critical care units. Of these 393 (41%) mobilised, 416 (43%) were not mobilised and 151 (16%) were excluded. A total of 371 patients had been admitted for ≤3 days, of whom 180 (48%) were mobilised, 140 (38%) were not mobilised and 51 (14%) were excluded. Of the 809 patients included, 367 (45%) had a green rating and 120 (15%) were rated amber, of whom 309 (84%) and 78 (65%) mobilised respectively. Mobility was associated with a Richmond Agitation-Sedation Scale of -1 to +1, lower doses of vasoactive agents, a lower inspired oxygen requirement.
Conclusion:
Although only 40% of patients mobilised out-of-bed, 89% of those defined ‘low-risk’ did so. There is significant overlap in physiological parameters for mobilisation versus non-mobilisation groups, suggesting a comprehensive physiological assessment is vital in decision making rather than relying on arbitrary time points.
Clinical Trials registration:
NCT05281705 Registered March 16, 2022. Retrospectively registered.