Chest Compression Fraction and 24-Hour Survival in In-Hospital Cardiac Arrest
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Abstract
Objective: to evaluate the relationship between a chest compression fraction greater than 80% and 24-hour survival in individuals with in-hospital cardiorespiratory arrest. Methods: prospective cohort study conducted in the emergency department of a secondary-level hospital. A total of 79 individuals older than 18 years with in-hospital cardiorespiratory arrest were included. Demographic variables, comorbidities, initial rhythm, reversible causes of arrest, and chest compression fraction (CCF) were recorded. Results: 24-hour survival was 20.3%. Individuals with a CCF greater than 80% had higher survival compared with those with a CCF between 60% and 80% (37.5% vs. 15.9%; p = 0.041). In the multivariable analysis, age younger than 65 years was associated with a higher probability of survival, whereas the presence of metabolic comorbidity was associated with a lower probability of survival. Conclusions: a CCF greater than 80% was associated with higher 24-hour survival in the bivariate analysis; however, this association did not persist after multivariable adjustment. Age younger than 65 years was associated with a higher probability of survival, whereas the presence of metabolic comorbidity was associated with a lower probability of survival. These findings suggest that survival after in-hospital cardiac arrest is multifactorial and that CCF should be considered a component of cardiopulmonary resuscitation quality within the context of clinical characteristics and the resuscitation process.
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