Objectives: To determine whether delirium prevention interventions reduce the risk of falls among older hospitalised patients.Methods: A systematic search of health-care databases was undertaken. Given the frequency of small sample sized trials, a trial sequential meta-analysis was conducted to present estimate summary effects to date. A Bayesian approach was used to estimate the posterior probability of the delirium prevention interventions reducing falls risk by various clinically relevant levels.Results: Five randomised controlled trials were included in our final metaanalysis. There was a 43% reduction in the risk of falls among participants in the delirium prevention intervention arm, compared to the control; however, confidence intervals were wide (RE RR = 0.57, 95% CI 0.32; 1.00, p = 0.05). This result was found to be statistically significant, according to traditional significance levels (z > 1.96) and the more conservative trial sequential analysis monitoring boundaries. The posterior probabilities of the delirium prevention intervention reducing the risk of falls by 10%, 20% and 30% were 0.86, 0.63 and 0.29 respectively. Conclusions:The results of this systematic review and trial sequential metaanalysis suggest that delirium prevention trials may reduce the risk of in-hospital falls among older patients by 43%. However, despite significant risk reduction found upon meta-analysis, the variation among study populations and intervention components raised questions around its application in clinical practice. Further research is required to investigate what the necessary components of a multifactorial intervention are to reduce both delirium and fall incidence among older adult in-patients.
Background Delirium is an acute change in cognition, common among older hospitalized patients, however, patients of all ages are at risk of delirium during a hospital stay. The International Federation of Delirium Societies promotes, each year, a World Delirium Awareness Day , to raise the awareness of, not just recognizing delirium in the hospital setting, but ensuring interventions are in place to prevent the development of delirium. Hospitalized patients with delirium have increased risk of adverse events such as falls, pressure injury, malnutrition, increased length of stay, increased health care costs, and mortality. This clinical audit aimed to estimate the risk of a subsequent fall, following an acute episode of in-hospital delirium, across a broad cross-sectional of clinical settings.Methods Seventeen adult acute inpatient wards across the South Western Sydney, Local Health District, undertook an audit of the number of admitted patients who had had at least one episode of delirium since being admitted to hospital. Using the hospital-based incident management reporting system, the rates of subsequent falls was compared between delirium and non-delirium patients.Results Fifty of the 473 patients (11.4%) were identified by the nursing staff to have had at least one episode of delirium since admission. The proportion of fallers among the delirium and non-delirium patients were 10% and 2%, respectively (p = 0.004). The rate of falls per 1000 patient days was 6.45 (95% confidence interval (CI) 2.1 to 15.1) among delirium patients, compared to 2.12 (95% CI 1.0 to 4.0) among patients without delirium. The risk of falling among delirium patients was 4.25 higher compared to non-delirium patients (adjusted hazard ratio (HR) = 4.25, 95% CI 1.26 to 14.39).Conclusion This clinical audit has been able to show that an acute episode of delirium increases the risk of an in-hospital fall fourfold. Importantly, these results have highlighted the need for a hospital wide approach, to not just in identifying delirium, but the need to have interventions in place to reduce the risk of delirium. In other words, delirium prevention should be ‘core business’ of all nursing care, across the acute hospital setting.
Background Delirium is an acute change in cognition, common among older hospitalized patients, however, patients of all ages are at risk of delirium during a hospital stay. The International Federation of Delirium Societies promotes, each year, a World Delirium Awareness Day, to raise the awareness of, not just recognizing delirium in the hospital setting, but ensuring interventions are in place to prevent the development of delirium. Hospitalized patients with delirium have increased risk of adverse events such as falls, pressure injury, malnutrition, increased length of stay, increased health care costs, and mortality. This clinical audit aimed to estimate the risk of a subsequent fall, following an acute episode of in-hospital delirium, across a broad cross-sectional of clinical settings. Methods Seventeen adult acute inpatient wards across a health district, undertook an audit of the number of admitted patients who had had at least one episode of delirium since being admitted to hospital. Using the hospital-based incident management reporting system, the rates of subsequent falls was compared between delirium and non-delirium patients. Results Fifty of the 473 patients (11.4%) were identified by the nursing staff to have had at least one episode of delirium since admission. The proportion of fallers among the delirium and non-delirium patients were 10% and 2%, respectively (p = 0.004). The rate of falls per 1000 patient days was 6.45 (95% confidence interval (CI) 2.1 to 15.1) among delirium patients, compared to 2.12 (95% CI 1.0 to 4.0) among patients without delirium. The risk of falling among delirium patients was 4.25 higher compared to non-delirium patients (adjusted hazard ratio (HR) = 4.25, 95% CI 1.26 to 14.39). Conclusion This clinical audit has been able to show that an acute episode of delirium increases the risk of an in-hospital fall fourfold. Importantly, these results have highlighted the need for a hospital wide approach, to not just in identifying delirium, but the need to have interventions in place to reduce the risk of delirium. In other words, delirium prevention should be ‘core business’ of all nursing care, across the acute hospital setting.
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