Increasing Hospitalizations and Decreasing Mortality from Sudden Cardiac Arrest in Modern Era: An Analysis of the National Inpatient Sample.

The national data on trends, patient characteristics, utilization of therapies and outcomes in patients with sudden cardiac arrest (SCA) are lacking. Using the National Inpatient Sample (NIS) database we identified yearly trends, patient characteristics, utilization of therapies and differences of in-hospital outcomes among patients with in-hospital vs out-of-hospital CA between years 2007-2015 A total of 1018541 patients (87% in-hospital) were identified with SCA between 2007 and 2015 with an increasing yearly trend. Of those, 201231 (20%) had AMI and 112104 (11%) cardiogenic shock and 64886 (7%) of patients underwent revascularization during same hospitalization (Table 1). Overall, 37590 (3.5%), 38489 (0.3%) and 2969 (0.3%) of patients underwent IABP, percutaneous LVAD (pLVAD) and ECMO placements respectively. While pLVAD and ECMO use has been increasing steadily in recent years, IABP use is consistently decreasing. 190 (0.05%) of patients underwent durable LVAD implantation and 225 (0.02%) underwent orthotropic heart transplant (OHT) during same hospitalization (Table 2). The length of stay (LOS) for entire cohort was 8.1(±12.4) days and the mortality for entire cohort was 68% with decreasing trend over the study period (Figure 1). The mortality in patients who underwent ECMO, durable LVAD and OHT was lower than the overall cohort (p<0.001). There has been an increase in the number of SCA patients with a concomitant decreasing mortality trend in the recent era. The mortality in patients who underwent ECMO, durable LVAD and OHT was lower than the overall cohort. [ABSTRACT FROM AUTHOR]