Emergency medicine journal : EMJ
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Observational Study
QRS complex characteristics and patient outcomes in out-of-hospital pulseless electrical activity cardiac arrest.
Pulseless electrical activity (PEA) is increasingly observed in out-of-hospital cardiac arrest (OHCA), but outcomes are still poor. We aimed to assess the relationship between QRS characteristics and outcomes of patients with OHCA with initial PEA (OHCA-P). ⋯ OHCA-P outcomes were better when the initial QRS complex showed a higher amplitude or narrower width.