title: Outcome of primary percutaneous coronary intervention in octogenarians with acute myocardial infarction.
abstract: OBJECTIVE
  Acute myocardial infarction (AMI) results in more complications and increased mortality in octogenarians compared to patients in younger age groups. This study investigated the short- and long-term outcomes in octogenarians after primary percutaneous coronary intervention (PCI).
  
  
  METHODS
  During the study period from May 1997 to August 2004, 54 patients > or = 80 years old with ST-elevation myocardial infarction (STEMI) were eligible for primary PCI. Data collected included baseline clinical characteristics and usage of cardiovascular medications. Diagnostic coronary angiography and revascularization procedures were performed using standard practices. During hospitalization, the clinical course including serial changes in cardiac enzymes, adverse events associated with myocardial infarction or treatment, and inhospital or long-term mortality of patients were recorded.
  
  
  RESULTS
  The mean age of the 54 patients (35 men, 19 women) was 82.8 +/- 2.5 years (range, 80-89 years). Among them, 27 (50%) had anterior infarction, six (11%) had anterolateral infarction, and 21 (39%) had inferior infarction, inclusive of three patients with accompanying right ventricular infarction. Among them, 20 (37%) patients were in Killip class I, nine (17%) were in class II, two (4%) in class III, and 23 (43%) in class IV. The mean delay from onset of symptoms to arrival in hospital was 220 +/- 167 minutes, and 189 +/- 169 minutes from hospital arrival to reperfusion. Diagnostic coronary angiography revealed that 48 (89%) patients had multivessel disease. Inhospital death occurred in 23 (43%) patients, with the leading causes of death being profound cardiogenic shock (61%), and free wall rupture (26%).
  
  
  CONCLUSIONS
  Octogenarian patients who developed STEMI tended to have multivessel disease. These patients had a high inhospital mortality rate that was most likely to be due to cardiogenic shock.
authors.affiliation: Cardiovascular Division, Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan.
authors.forename: Yi-Chih
authors.initials: YC
authors.lastname: Wang
authors.forename: Juey-Jen
authors.initials: JJ
authors.lastname: Hwang
authors.forename: Chi-Sheng
authors.initials: CS
authors.lastname: Hung
authors.forename: Hsien-Li
authors.initials: HL
authors.lastname: Kao
authors.forename: Fu-Tien
authors.initials: FT
authors.lastname: Chiang
authors.forename: Chuen-Den
authors.initials: CD
authors.lastname: Tseng
mesh_terms: D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000453:epidemiology; D005260:Female; D006341:Heart Rupture / Q000401:mortality; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000453:epidemiology / Q000628:therapy*; D012770:Shock, Cardiogenic / Q000401:mortality; D013624:Taiwan / Q000453:epidemiology