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Infant out-of-hospital cardiac arrest during nights and weekends
Aditya C Shekhar1, Molly K Childers2, Ethan E Abbott1
1Icahn School of Medicine at Mount Sinai, New York City, NY, United States of America.
Insights
Infant cardiac arrest survival rates, measured by return of spontaneous circulation (ROSC), are lower on weekends compared to weekdays. This finding highlights a potential disparity in emergency medical services (EMS) care timing.
Area of Science:
- Pediatric Emergency Medicine
- Public Health
- Cardiology
Background:
- Adult cardiac arrest outcomes are worse during nights and weekends.
- Research on time-based disparities in infant cardiac arrest outcomes is lacking.
- This study addresses the gap in understanding temporal variations in infant cardiac arrest care.
Purpose of the Study:
- To investigate if infant out-of-hospital cardiac arrest outcomes differ based on time of day or day of the week.
- To compare return of spontaneous circulation (ROSC) rates in infants experiencing cardiac arrest during daytime vs. nighttime and weekdays vs. weekends.
Main Methods:
- Utilized the National Emergency Medical Services Information System (NEMSIS) database (January 2021 - December 2022).
- Included infant out-of-hospital cardiac arrests (<1 year old) prior to emergency medical services (EMS) arrival.
- Compared ROSC achievement rates between daytime (0800-1959) and nighttime (2000-0759), and between weekdays and weekends (Saturday/Sunday).
Main Results:
- Analyzed 8549 infant cardiac arrests.
- ROSC rates were significantly lower on weekends (14.1%) compared to weekdays (16.8%) (p=0.00097).
- A non-significant trend of lower ROSC rates during nighttime (15.3%) versus daytime (16.4%) was observed (p=0.08076).
Conclusions:
- Infant out-of-hospital cardiac arrest ROSC rates are significantly lower on weekends compared to weekdays.
- Further research and quality improvement initiatives are necessary to address this weekend disparity.
- Understanding and mitigating time-based variations in emergency care is crucial for improving infant cardiac arrest outcomes.
Background:
A growing body of evidence suggests outcomes for cardiac arrest in adults are worse during nights and weekends when compared with daytime and weekdays. Similar research has not yet been carried out in the infant setting.
Methods:
We examined the National Emergency Medical Services Information System (NEMSIS), a database containing millions of emergency medical services (EMS) runs in the United States. Inclusion criteria were infant out-of-hospital cardiac arrests (patients <1 years old) taking place prior to EMS arrival between January 2021 and December 2022 where EMS documented whether return of spontaneous circulation (ROSC) was achieved. Cardiac arrests were classified as occurring during either the day (defined as 0800-1959) or the night (defined as 2000-0759) and weekends (Saturday/Sunday) or weekdays (Monday-Friday). Rates of ROSC achievement were compared.
Results:
A total of 8549 infant cardiac arrests met inclusion criteria: 5074 (59.4%) took place during daytime compared with 3475 (40.6%) during nighttime, and 5989 (70.1%) arrests occurred on weekdays compared with 2560 (29.9%) on weekends. Rates of ROSC achievement were significantly lower on weekends versus weekdays (16.8% vs. 14.1%; p = 0.00097). A difference in ROSC rates when comparing daytime and nighttime was seen, but this difference was not statistically significant (16.4% vs. 15.3%; p = 0.08076).
Conclusion:
ROSC achievement rates for infant out-of-hospital cardiac arrest are significantly lower on weekends when compared with weekdays. Further study and quality improvement work is needed to better understand this.
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