ABSTRACT
Background We aimed to evaluate the incidence of acute myocardial infarction (AMI) in New Orleans in the sixteen years after Hurricane Katrina. Methods This was a single-center, retrospective study performed at Tulane University Health Sciences Center of patients admitted for AMI during two years prior to Hurricane Katrina and sixteen years after Hurricane Katrina. The pre-Katrina and post-Katrina cohorts were compared according to pre-specified demographic and clinical data. Results In the sixteen-year post-Katrina period, there were 3696 admissions for AMI out of a total census of 128,276 (2.9%) compared to 150 admissions out of a census of 21,079 (0.7%) in the pre-Katrina group (p<0.0001). The post-Katrina group had a higher prevalence of known coronary artery disease (CAD) (43.8% vs. 30.7%, p<0.0001), diabetes mellitus (40.7% vs. 28.7%, p<0.002), hypertension (80.1% vs. 74.0%, p<0.05), hyperlipidemia (54.2% vs. 44.7%, p<0.0001), smoking (54.2% vs. 39.3%, p<0.0002), drug abuse (18.7% vs. 6.7%, p<0.0002), and psychiatric disease (15.3% vs. 6.7%, p<0.0004). The post-Katrina group was more often prescribed aspirin (49.6% vs. 31.3%, p<0.0001), beta-blocker (46.9% vs. 34.0%, p<0.004), ACE inhibitor or ARB (51.9% vs. 36.0%, p<0.0004), and statin (52.6% vs. 28.0%, p<0.0001) but with higher medication non-adherence (15.8% vs. 7.3%, p<0.0001). The post-Katrina patients were also more likely to be unemployed (75.6% vs 22.7%, p<0.0001) and non-married (56.3% vs. 52.7%, p<0.0001). Rates of STEMI were lower in the post-Katrina group (29.1% vs 42.0%, p<0.002). There was no significant difference in terms of sex, being uninsured, or prior coronary artery bypass grafting. Four patients were COVID positive in the post-Katrina cohort. Conclusion There was a 4-fold increase in the incidence of AMI sixteen years after Hurricane Katrina. Psychosocial, behavioral, and traditional CAD risk factors were significantly higher among the post-Katrina group. These findings add to the growth of literature demonstrating the adverse cardiovascular outcomes that occur after a natural disaster. Further research is needed to explain the underlying mechanisms to help diminish future cardiac morbidity.Copyright © 2023 American College of Cardiology Foundation