title: Characteristics, management, and outcomes of 5,557 patients age > or =90 years with acute coronary syndromes: results from the CRUSADE Initiative.
abstract: OBJECTIVE
  The goal of this work was to explore the treatment and outcomes of patients with non-ST-segment elevation acute coronary syndromes (NSTE-ACS) age > or =90 years.
  
  
  BACKGROUND
  The elderly are often excluded from clinical trials of NSTE-ACS and are underrepresented in clinical registries.
  
  
  METHODS
  We used data from the CRUSADE registry to study 5,557 patients with NSTE-ACS age > or =90 years and compared their baseline characteristics, treatment patterns, and in-hospital outcomes with a cohort age 75 to 89 years (n = 46,270).
  
  
  RESULTS
  Although both groups had much in common, compared with the younger elderly, the older elderly were less likely to be diabetic, smokers, or obese. Among patients without contraindications, the older elderly were less likely to receive glycoprotein IIb/IIIa inhibitors and statins during the first 24 h and were less likely to undergo cardiac catheterization within 48 h. The older elderly were more likely to die (12.0% vs. 7.8%) and experienced more frequent adverse events (26.8% vs. 21.3%) during the hospitalization-differences that persisted after adjustment for baseline patient and hospital characteristics. Increasing adherence to guideline-recommended therapies was associated with both increased bleeding and a graded reduction in risk-adjusted in-hospital mortality across both age groups.
  
  
  CONCLUSIONS
  In this large population of nonagenarians and centenarians with NSTE-ACS, increasing adherence to guideline-recommended therapies was associated with decreased mortality. These findings reinforce the importance of optimizing care patterns for even the oldest patients with NSTE-ACS, while examining novel approaches to reduce the risk of bleeding in this rapidly expanding patient population.
authors.affiliation: Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
authors.forename: Adam H
authors.initials: AH
authors.lastname: Skolnick
authors.forename: Karen P
authors.initials: KP
authors.lastname: Alexander
authors.forename: Anita Y
authors.initials: AY
authors.lastname: Chen
authors.forename: Matthew T
authors.initials: MT
authors.lastname: Roe
authors.forename: Charles V
authors.initials: CV
authors.lastname: Pollack
authors.forename: E Magnus
authors.initials: EM
authors.lastname: Ohman
authors.forename: John S
authors.initials: JS
authors.lastname: Rumsfeld
authors.forename: W Brian
authors.initials: WB
authors.lastname: Gibler
authors.forename: Eric D
authors.initials: ED
authors.lastname: Peterson
authors.forename: David J
authors.initials: DJ
authors.lastname: Cohen
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D005260:Female; D019983:Guideline Adherence; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D017202:Myocardial Ischemia / Q000150:complications / Q000401:mortality / Q000628:therapy*; D017410:Practice Guidelines as Topic; D012042:Registries; D015996:Survival Rate; D013577:Syndrome; D016896:Treatment Outcome