Comparison of In-Hospital Clinical Outcomes of Acute Myocardial Infarction between Nonagenarians and Octogenarians. Results from Center without In-Site Coronary Intervention

Acute Myocardial Infarction (AMI) increases its prevalence in elderly, and it is important to explore clinical characteristics in nonagenarians. The aim of this study was to compare clinical characteristics and in-hospital outcomes of AMI between octogenarians and nonagenarians. Consecutive octogenarians (80–89 years old) and nonagenarians (90–99 years old) with AMI, from June 2014 to January 2020 were included, and divided in two groups. Clinical characteristics and in-hospital outcomes were compared between the two groups. Primary outcome for this study was in-hospital death. No major differences between the two groups, beyond their difference in height, which was statistically different (164 ± 6.6 versus 167 ± 4.1; p = 0.02), but without any clinical implication. Analysis was repeated including only patients without reperfusion of any kind. And, no major differences were obtained, beyond differences in height, again (163 ± 5.9 vs. 166 ± 3.6; p = 0.04). To conclude, in-hospital clinical outcomes in nonagenarians with AMI were comparable to that of octogenarians with AMI, including in-hospital mortality.