Introduction/Hypothesis: We examined the prevalence and outcomes of patients admitted with acute cerebrovascular disease (ACVD) and concomitant acute myocardial infarction (AMI).
Methods: We utilized the Healthcare Cost and Utilization Project Nationwide Inpatient Sample database (1998-2009) and identified 1,760,415 adult ACVD patients among 92,848,710 patients enrolled. Using SAS 6.4 and applying SPSS 22 the outcome variables mortality, length of hospital stay (LOS), hospital costs >$20,000, and disposition (home or any care facility) were selected and logistic regression analyses was performed adjusting for the covariates hypertension, diabetes mellitus, age, race, sex, number of comorbidities, and care complexity (numbers of inpatient procedures) among all ACVD with and without AMI.
Results: Mean age was 71 years (SD 15) with 76% >65 years old; 54% female gender; 55% Whites, 11% Blacks, and 6% Hispanics. Among all ACVD, 66% had HTN, 28% DM, AMI 4.1%, LOS was 7.6 days (SD 9.8), in-patient mortality 12%; disposition home 42% and facility 44%, and mean hospital costs $36,010 (SD $63,331). After covariate adjustment, ACVD patients with AMI compared to those without AMI had a mortality of 30% vs 12% (P<0.000); LOS ≥7 days 53% vs 30% (P<0.000), facility discharge 68% vs 51% (P<0.000), and adjusted hospital costs 71% vs 44% (P<0.000).
Conclusions: Acute myocardial infarction occurred in 4.1% of patients with acute cerebrovascular disease. It was associated with significantly increased risks of in-patient mortality, length of hospital stay, facility disposition and hospital costs. Considering the poor outcomes of ACVD patients with AMI may indicate more aggressive strategies for early recognition and reduction of myocardial injury.