Comorbidity and favorable neurologic outcome after out-of-hospital cardiac arrest in patients of 70 years and older.

Introduction: Advanced age is reported to be associated with lower survival after out-of-hospital cardiac arrest (OHCA). We aimed to establish survival rate and neurological outcome at hospital discharge after OHCA in older patients and evaluated whether pre-OHCA comorbidity was associated with favorable neurologic outcome.

Methods: From a prospective registry of all cardiopulmonary resuscitation (CPR) attempts after OHCA, we established survival in 1332 patients aged ≥ 70 years in whom resuscitation with non-traumatic etiology was attempted in 2009-2011.