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Background Streaming occurs in emergency department (ED) to reduce crowding, but misallocation of patients may impact patients' outcome. Aim The study aims to determine the outcomes of patients misallocated by the ED process of streaming into likely admission or discharge Methods This is a retrospective cohort study, at an Australian, urban, tertiary referral hospital's ED between January 2010 and March 2012, using propensity score matching for comparison. Total and partitioned ED lengths of stay, inpatient length of stay, in-hospital mortality and 7- and 28-day unplanned readmission rate were compared between patients who were streamed to be admitted against those streamed to be discharged. Results Total ED length of stay did not differ significantly for admitted patients if allocated to the wrong stream (median 7.6 h, interquartile range 5.7-10.6, cf. 7.5 h, 5.3-11.2; P = 0.34). The median inpatient length of stay was shorter for those initially misallocated to the discharge stream (1.8 days, 1.1-3.0, cf. 2.4 days, 1.4-3.9; P < 0.001). In-hospital mortality and 7- and 28-day readmission rates were not adversely affected by misallocation. When considering patients eventually discharged from the ED, those allocated to the wrong stream stayed in the ED longer than those appropriately allocated (5.2 h, 3.7-7.3, cf. 4.6 h, 3.3-6.4; P < 0.001). Conclusion There were no significant adverse consequences for an admitted patient initially misallocated by an ED admission/discharge streaming process. Patients' discharge from the ED was slower if they had been allocated to the admission stream. Streaming carries few risks for patients misallocated by such a process. [ABSTRACT FROM AUTHOR]

Background Adverse inpatient events may diminish with earlier response to clinical deterioration. Observation and response charts with a tiered escalation response are recommended for use. Aims To examine the impact of an observation and response chart and altered calling criteria on rapid response team ( RRT) calls, cardiac arrests and intensive care unit ( ICU) admissions from the ward and hospital deaths. Methods Linked administrative and clinical data from an Australian, adult tertiary hospital for August 2007 to June 2013 (pre-chart) and July 2013 to December 2014 (post-chart) and analysed using interrupted time series analysis. Results Pre-chart RRT calls were increasing by 1.7 calls per 10 000 hospital admissions per month, whilst ICU admissions from the ward, deaths and cardiac arrests were decreasing by 0.3, 0.25 and 0.079 per 10 000 admissions per month respectively. Immediately upon chart introduction, the RRT call rate increased by 82% (66-98% CI; P < 0.01), the ward admissions to ICU rate increased by 41% (14-67% CI; P < 0.01) and the rates of deaths and cardiac arrests did not change. In the post chart period, both the pre-chart increasing trend in the rate of RRT and decreasing trend in the rate of ICU admissions changed significantly to become constant. The pre chart trends in the cardiac arrest rate and hospital mortality did not change. Conclusion Observation and response charts increased RRT and ICU workload without improving cardiac arrest rate or mortality. Future chart evaluation should identify features beneficial to patient outcomes and refine those that consume critical care resources that are not associated with improved patient outcomes. [ABSTRACT FROM AUTHOR]