Association Between Intraosseous Access Establishment and Prehospital Vasopressor Administration in Patients With Out-of-Hospital Cardiac Arrest in Helicopter Emergency Medical Services: Analysis of the Japanese Society for Aeromedical Services Registry
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引用次数: 0
Abstract
Objective
The establishment of intraosseous (IO) access in patients with out-of-hospital cardiac arrest (OHCA) enables reliable vasopressor administration. However, no studies have examined the association between IO access and vasopressor administration in a nationwide prehospital setting. We aimed to examine the association between IO access and vasopressor administration in patients with OHCA using a nationwide database.
Methods
This retrospective cohort study used data from the Japanese Society for Aeromedical Services Registry (JSAS-R) between April 2020 and March 2023. The primary outcome was vasopressor administration before hospital arrival. Secondary outcomes included in-hospital mortality, length of hospital stay, doctor contact-to-hospital arrival time, and return of spontaneous circulation (ROSC) on hospital arrival. The association between IO access establishment and clinical outcomes was examined using multivariate logistic regression with multiple imputation.
Results
Among 3,264 patients with OHCA, 321 (9.8%) received IO access (IO group), while the remaining 2,943 (90.2%) who did not receive IO access formed the control group. Prehospital vasopressor administration was significantly more frequent in the IO group than in the control group (82.9% vs. 70.6%; p < 0.001; odds ratio [OR]: 1.77; 95% confidence interval [CI]: 1.28–2.46). However, the IO group showed a significant decrease in ROSC on hospital arrival (OR, 0.64; 95% CI: 0.45–0.91). No significant intergroup differences were observed in other secondary outcomes.
Conclusion
IO access was associated with increased prehospital vasopressor administration, suggesting higher success rates of IO vascular access among patients with OHCA in the helicopter emergency medical service setting.
期刊介绍:
Air Medical Journal is the official journal of the five leading air medical transport associations in the United States. AMJ is the premier provider of information for the medical transport industry, addressing the unique concerns of medical transport physicians, nurses, pilots, paramedics, emergency medical technicians, communication specialists, and program administrators. The journal contains practical how-to articles, debates on controversial industry issues, legislative updates, case studies, and peer-reviewed original research articles covering all aspects of the medical transport profession.