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Rapid response team and hospital mortality in hospitalized patients

Boris Jung| Aurelien Daurat| Audrey De Jong| Gerald Chanques| Martin Mahul| Marion Monnin| Nicolas Molinari| Samir Jaber
Seven-Day Profile Publication
Volume 42, Issue 4 / April , 2016

Pages 494 - 504

Abstract

Purpose

Although rapid response systems are known to reduce in-hospital cardiac arrest rate, their effect on mortality remains debated. The present study aimed to evaluate the effect of implementing an intensivist-led rapid response team (RRT) on mortality in hospitalized patients.

Methods

An implementation of an intervention and a comparison with retrospective data analysis were performed in the four hospitals of Montpellier regional healthcare centre, in France. An intensivist-led RRT was implemented on a 24/7 basis along with educational modules, publicity and bedside simulation-based training in only one of the four hospitals from January 2012 to June 2012. A single activation criterion (heart rate below 40/min or above 140/min, systolic blood pressure below 80 mmHg, cardiac arrest, respiratory rate below 8/min or above 30/min, pulse oximetry below 90 % with O2 above 6 l/min, respiratory distress in a tracheotomised patient, respiratory arrest, coma or sudden change in level of consciousness, seizure) allowed any caregiver to directly contact the RRT using a dedicated cell phone number. Patients over 18 years admitted for more than 24 h in the medical-surgical wards from July 2010 to December 2011 (pre-RRT period) and from July 2012 to December 2013 (RRT period) were included. The main outcome was unexpected mortality. Analyses of data from one RRT hospital and three control hospitals (no RRT hospital) were performed.

Results

RRT implementation was associated with a decrease in unexpected mortality rate in the hospital that implemented RRT (from 21.9 to 17.4 per 1000 discharges; p = 0.002). Reduction in unexpected mortality associated with RRT implementation could be estimated at 1.5 lives saved per week in the RRT hospital. In the three other hospitals, mortality rate was not significantly modified (from 19.5 to 19.9 per 1000 discharges; p = 0.69). Overall mortality decreased from 39.6 to 34.6 per 1000 discharges between the pre-RRT and RRT period in the RRT hospital (p = 0.012), but did not significantly change in the other hospitals. Patients in the RRT hospital were more frequently admitted to the intensive care unit (ICU) during the RRT period (45.8 vs 52.9 per 1000; p = 0.002), and their sequential organ failure assessment (SOFA) score upon ICU admission significantly decreased from 7 (4–10) to 5 (2–9); p < 0.001.

Conclusions

In the present retrospective study, implementation of an intensivist-led RRT along with educational modules, publicity and bedside simulation-based training was associated with a significant decrease in unexpected and overall mortality of inpatients.

Keywords

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