Does transport time of out-of-hospital cardiac arrest patients matter? A systematic review and meta-analysis.
Resuscitation · 2017-04-08 · Meta-analysis
Abstract
BACKGROUND: Despite increasing evidence for specialized cardiac arrest centers, the impact of transport time on out-of-hospital cardiac arrest (OHCA) patients' outcome remains unclear. We systematically reviewed the prognostic impact of transport time in OHCA patients. METHODS: We searched PubMed, Embase, the Cochrane Library, and Web of Science from inception to May 2016 for studies that had reported the relationship between transport time and outcome in OHCA patients. The primary outcome was survival at hospital discharge. The secondary outcomes included neurological outcome at hospital discharge and long-term outcome. RESULTS: From a total of 3454 titles retrieved from the literature search, 9 studies were included for final analysis. All nine studies (N=46,417) were retrospective observational studies. OHCA patients included were mostly male (61-76%), suffered a witnessed cardiac arrest in half of the cases, and had an initial shockable rhythm in one third of cases. The overall survival to hospital discharge for all cardiac rhythms was less than 6%. There was no evidence for a differential mortality risk in OHCA patients according to transport time (mean difference -0.05min [-0.86,0.76]; I2 25%; 4 studies, 2197 patients). CONCLUSION: Paramedic transport time was not associated with survival to hospital discharge or with neurological outcome at hospital discharge in adult OHCA patients. Future studies are needed to prospectively evaluate the prognostic impact of transport time particularly in rural settings and pediatric population.
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Tags
Time intervals · Mortality & survival · Quality of life & function · Paramedics & EMTs · Rural & remote
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