Abstract 9974: Initial Serum Lactate Predicts Mortality After Cardiac Catheterization Following Cardiac Arrest

IntroductionCardiac arrest (CA) is associated with low survival despite resuscitation and return of spontaneous circulation. Electrocardiograms in these patients are challenging to interpret and may suggest myocardial ischemia as the inciting event. We sought to investigate the impact of initial serum lactate on survival in post CA patients referred to the cath lab.HypothesisInitial serum lactate predicts mortality after cardiac catheterization following cardiac arrestMethodsWe retrospectively reviewed patients at our institution taken for urgent catheterization between January 2014 and September 2018 after CA. Patients were identified through activation of the cath lab for a STEMI alert or urgent case. Characteristics of survivors and non-survivors were compared.Results384 patients were referred urgently to the cath lab during this period, 50 with prior CA. The mean age of the cohort was 57. 66% were men, 40% had a history of coronary artery disease. Overall survival was 40%. Primary causes of death were cardiogenic shock (30%), CA (26.7%), and anoxic brain injury (20%). Survival in patients who underwent coronary intervention compared with those who did not was similar (45.5% vs 29.4%; p=0.27). Mean lactate level in survivors vs non-survivors was 4.7±3.8 and 9.8±4.7 mmol/L, respectively (p