Abstract
The Incidence of peri-intubation cardiac arrest (PICA) has been rarely assessed in the out-of-hospital setting. The objectives of this study were to assess the incidence and factors associated with PICA (cardiac arrest occurring within 15 min of intubation) in an out-of-hospital emergency setting, wherein emergency physicians perform standardized airway management using a rapid sequence intubation technique in adult patients. This was a secondary analysis of the “Succinylcholine versus Rocuronium for out-of-hospital emergency intubation” (CURASMUR) trial, which compared the first attempt intubation success rate between succinylcholine and rocuronium in adult patients requiring emergency tracheal intubation for any vital distress except cardiac arrest. Enrollment occurred from January 2014 to August 2016 in 17 French out-of-hospital emergency medical units. All operators were emergency physicians. The PICA incidence was recorded and multivariable logistic regression analysis was used to identify the factors associated with its occurrence. A total of 1226 patients were included with a mean age of 55.9 ± 19 years. PICA was recorded in 35 (2.8%) patients. Multivariable analysis indicated that the occurrence of PICA was independently associated with a body mass index (BMI) > 30 kg m2 [adjusted odds ratio (aOR) 4.85; 95% confidence interval (CI) 1.82–12.90, p = 0.02], oxygen saturation (SpO2) before intubation < 90% (aOR 3.4; 95% CI 1.50–7.60, p = 0.003), difficult intubation (defined by an Intubation Difficulty Score [IDS] > 5, [aOR 3.59; 95% CI 1.82–8.08, p = 0.02], the use of rocuronium instead of succinylcholine (aOR 2.47; 95% CI 1.08–5.64, p = 0.03), post intubation hypoxaemia (aOR 2.70; 95% CI 1.05–6.95, p = 0.04), post-intubation hypotension (aOR 4.07; 95% CI 1.62–10.22, p = 0.003), and pulmonary aspiration(aOR 4.78; 95% CI 1.48–15.36, p = 0.009). Early PICA occurred in approximately 3% of cases in the out-of-hospital setting. We identified several independent risk factors for PICA, including obesity, hypoxaemia before intubation and difficult intubation.
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12 February 2022
A Correction to this paper has been published: https://doi.org/10.1007/s11739-022-02941-x
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Funding
The original CURASMUR study was supported by the Programme Hospitalier de Recherche Clinique 2012 of the French Ministry of Health. The Centre Hospitalier Universitaire de la Réunion is the key sponsor of this study, and by delegation the Department of Clinical Research and Development supervises all work in accordance with the French public health code.
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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper entitled: “Incidence and factors associated with out-of-hospital peri-intubation cardiac arrest: A retrospective substudy of the CURASMUR Trial”.
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The trial was approved by an appropriate Ethics Committee (Comité de protection des personnes Sud-ouest et outre-mer; ref 2013-001438-16) and registered under the number NCT 02000674 (clinicaltrials.gov). The need for informed consent was waived because the patients required urgent tracheal intubation. In accordance with French laws on emergency medical research, if a patient’s relative was present when the medical team had to intubate, written consent from the relative of the patient for inclusion in the clinical study was required. If no relatives were present at the time of inclusion, a letter offering the opportunity to consent or opt out of the study was sent to the patient if he or she survived and left the hospital or to a relative if the patient died in the hospital.
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Gil-Jardiné, C., Jabre, P., Adnet, F. et al. Incidence and factors associated with out-of-hospital peri-intubation cardiac arrest: a secondary analysis of the CURASMUR trial. Intern Emerg Med 17, 611–617 (2022). https://doi.org/10.1007/s11739-021-02903-9
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DOI: https://doi.org/10.1007/s11739-021-02903-9