Associated Factors of In-hospital Outcomes in Emergency Department's Cardiopulmonary Resuscitation; a Cross-Sectional Study
Iranian Journal of Emergency Medicine,
Vol. 10 No. 1 (2023),
30 November 2022
Introduction: Even though the basic principles of cardiopulmonary resuscitation (CPR) are simple, the patients' outcome remains inconsistent. This study aimed to investigate the CPR outcomes and associated factors in the emergency department.
Method: This cross-sectional study was conducted on patients who underwent in-hospital CPR following a cardiac arrest in the emergency department for one year. The patient's baseline characteristics and CPR outcomes were recorded from patients' profiles, and the association of patient-related and CPR-related variables with the outcomes was assessed.
Results: 220 patients with a mean age of 71.5 ± 16.9 (range: 20-100) years were included (60.5% male). 193 cases of cardiac arrests had occurred in the hospital. Presenting cardiac rhythm in 198 cases (90.0 %) was asystole (not requiring defibrillation). The mean duration of conducted CPR was 43.2 ± 15.6 (5-120) minutes. Only 7 patients (3.2%) achieved the return of spontaneous circulation (ROSC) and were discharged from the hospital, with one suffering from neurological impairment due to CPR. There was a significant association between age (p = 0.047), consciousness status at admission (p = 0.003), presenting cardiac rhythm at CPR initiation (p = 0.0001), and establishment of ROSC under 45 minutes (p = 0.043) with patients' outcomes. Presenting cardiac rhythm at CPR initiation (p = 0.001), ROSC under 45 minutes (p = 0.012), and consciousness status at admission (p = 0.027) were independent predictive factors of survival. The area under the ROC curve for presenting cardiac rhythm and ROSC under 45 minutes was 0.817 (95% CI: 0.617-1.000) and 0.805 (95% CI: 0.606-1.000), respectively.
Conclusion: Based on the present study's findings, the survival rate of patients after CPR in ED was 3.2%. Presenting cardiac rhythm, ROSC under 45 minutes, and consciousness status at admission was among the independent predictors of mortality.
- cardiopulmonary resuscitation
- cardiac arrest
- emergency department
- associated factors
How to Cite
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