title: In-hospital outcome in octogenarians with acute coronary syndrome undergoing emergent coronary angiography.
abstract: Very elderly patients have higher mortality rates than younger patients after acute coronary syndrome (ACS). However, the mechanism by which increasing age contributes to such mortality remains unclear. In addition, the efficacy and safety of invasive coronary procedures for octogenarians with ACS have not been well established. We compared the clinical characteristics and in-hospital outcome of 193 octogenarians (mean age, 83 years) with those of 1,462 younger patients (mean age, 64 years) with ACS who underwent emergent coronary angiography. Octogenarians included a greater number of females, had higher rates of cerebrovascular disease and multivessel disease, a higher Killip class, a higher Forrester class, and lower rates of smoking, diabetes, and hypercholesterolemia than the younger subjects. Interventions, including percutaneous transluminal coronary angioplasty (PTCA) and coronary artery bypass grafting (CABG), were performed less frequently in octogenarians than in younger patients (88.0% versus 90.8%). The procedural success rate in octogenarians did not differ from that in younger patients. However, the in-hospital mortality rate for the octogenarians was about three times higher than for the younger patients (19.2% versus 6.9%). Multivariate analysis revealed that the predictors of in-hospital mortality in the octogenarians were a higher Killip class and a higher Forrester class. Octogenarians with ACS had fewer coronary risk factors and a similar success rate for the intervention, but had more greatly impaired hemodynamics and higher in-hospital mortality than the younger patients. Therefore, impaired myocardial reserve may contribute to a large portion of in-hospital deaths in octogenarians with ACS.
authors.affiliation: Division of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
authors.forename: Kotaro
authors.initials: K
authors.lastname: Oe
authors.forename: Masami
authors.initials: M
authors.lastname: Shimizu
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Ino
authors.forename: Masato
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Hidenobu
authors.initials: H
authors.lastname: Terai
authors.forename: Kenshi
authors.initials: K
authors.lastname: Hayashi
authors.forename: Masaru
authors.initials: M
authors.lastname: Kiyama
authors.forename: Kenji
authors.initials: K
authors.lastname: Sakata
authors.forename: Tatsumi
authors.initials: T
authors.lastname: Hayashi
authors.forename: Masaru
authors.initials: M
authors.lastname: Inoue
authors.forename: Tomoya
authors.initials: T
authors.lastname: Kaneda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Mabuchi
mesh_terms: D000368:Aged; D000789:Angina, Unstable / Q000000981:diagnostic imaging / Q000401:mortality* / Q000503:physiopathology; D002423:Cause of Death; D017023:Coronary Angiography; D004632:Emergency Medical Services; D005260:Female; D006439:Hemodynamics; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000401:mortality* / Q000503:physiopathology; D012189:Retrospective Studies; D013577:Syndrome