Abstract 89: The Prognostic Factor of Patients with Asystole on Arrival
Background: Patients with asystole on arrival (AOA) at hospital have a poor prognosis. However, little is known about the prognostic factor of patients with AOA.
Objective: The purpose of this study was to determine predictors for 24 hours survival in patients with AOA.
Methods and results: Consecutive patients with AOA admitted to the Hiroshima University Hospital (Hiroshima, Japan) from April 2002 to January 2007 were retrospectively analyzed. Patients were divided into two groups according to the outcomes, i.e. non-survivors vs. survivors at 24 hours after admission. Data including blood gas analysis, lactate levels, and levels of minerals on admission were obtained and analyzed. Of 102 (male; 60) patients with AOA, fourteen patients survived for 24 hours. Univariate analysis found that pH, PaO2, PaCO2, base excess, lactate, and serum potassium concentration were associated with survival (p< 0.05) (Table⇓). Multivariate analysis determined that serum potassium concentration independently affected 24 hours survival.
Conclusions: These results suggested that the serum potassium level on admission is a strong, independent predictor of survival of patients with AOA.