- •Multiple code patients had higher in-hospital mortality
- •Multiple codes within 24 hours led to significantly higher in-hospital mortality
- •Patients sustaining a neurologic event were more likely to have a non-home discharge
Cardiopulmonary resuscitation (CPR) is widely used in response to cardiac arrest. However, little is known regarding outcomes for those who undergo multiple episodes of cardiac arrest while in the hospital.
The purpose of this study was to evaluate the association of multiple cardiac events with in-hospital mortality for patients admitted to our tertiary care hospital who underwent multiple code events.
We performed a retrospective cohort study on all patients who underwent cardiac arrest from 2012 to 2016. Primary outcome was survival to discharge. Secondary outcomes included post-cardiac-arrest neurologic events (PCANE), non-home discharge, and one-year mortality.
There were 622 patients with an overall mortality rate of 78.0%. Patients undergoing CPR for cardiac arrest once during their admission had lower in-hospital mortality rates compared to those that had multiple (68.9% versus 91.3%, p<.01). Subset analysis of those who had multiple episodes of CPR revealed that more than one event within a 24-hour period led to significantly higher in-hospital mortality rates (94.7% versus 74.4%, p<.01). Other variables associated with in-hospital mortality included body mass index, female sex, malignancy, and increased down time per code. Patients that had a non-home discharge were more likely to have sustained a PCANE than those that were discharged home (31.4% versus 3.9%, p<.01). A non-home discharge was associated with higher one-year mortality rates compared to a home discharge (78.4% versus 54.3%, p=.01).
Multiple codes within a 24-hour period and the average time per code were associated with in-hospital mortality in cardiac arrest patients.
Abbreviations:CPR (Cardiopulmonary resuscitation), ACLS (Advanced circulatory life support)
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Published online: November 26, 2022
Accepted: November 22, 2022
Received in revised form: November 18, 2022
Received: June 13, 2022
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