title: Twenty-year route of prevalence of risk factors, treatment patterns, complications, and mortality rate of acute myocardial infarction in Iran.
abstract: OBJECTIVE
  Coronary artery diseases are regarded as the main cause of mortality in most countries. The present study aims at evaluating variations and studying its complications in Iranian patients within past 20 years.
  
  
  METHODS
  This cross-sectional analytical-descriptive study retrospectively evaluated the files of 600 patients with acute myocardial infarction during a 20-year period. Basic data and laboratory information, chemotherapies and intervention treatments of patients were registered in special forms and compared regarding the mentioned time intervals.
  
  
  RESULTS
  There were 440 (73.3%) male and 160 (26.7%) female patients and mean age of the patients was 60.03 ± 11.61 years. Mean duration of hospitalization (p < 0.001) and prevalence of smoking (p < 0.001) had significantly decreased in the past two decades. There was no meaningful difference when considering mortality rate (p = 0.533) and cardiac insufficiency (p = 0.403).
  
  
  CONCLUSIONS
  The results indicate prominent improvement in the management process of patients suffering from acute myocardial infarction within the past 20 years.
authors: Department of Cardiology, Tabriz University of Medical Sciences, Tabriz, Iran.
authors: Samad
authors: S
authors: Ghaffari
authors: Hadi
authors: H
authors: Hakim
authors: Leili
authors: L
authors: Pourafkari
authors: Elnaz Sagheb
authors: ES
authors: Asl
authors: Mohamad
authors: M
authors: Goldust
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006333:Heart Failure / Q000453:epidemiology*; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D007492:Iran / Q000453:epidemiology; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology* / Q000401:mortality / Q000628:therapy; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology*
keywords: acute myocardial infarction; mortality; prognosis; treatment