title: Impact of allopurinol on risk of myocardial infarction.
abstract: BACKGROUND
  Gout therapy includes xanthine oxidase inhibitors (XOI) and colchicine, which have both been associated with decreased cardiovascular risk. However, their effects on major cardiac events, such as myocardial infarction (MI), need to be investigated further.
  
  
  OBJECTIVE
  To investigate whether XOIs and colchicine are associated with decreased risk of MI.
  
  
  METHODS
  This case-control study compared patients with first-ever MI and matched controls. Cases were recruited from the Pharmacoepidemiological General Research on MI registry. Controls were selected from a referent population (n=8444) from general practice settings.
  
  
  RESULTS
  The study sample consisted of 2277 MI patients and 4849 matched controls. Use of allopurinol was reported by 3.1% of cases and 3.8 of controls, and 1.1% of cases and controls used colchicine. The adjusted OR (95% CI) for MI with allopurinol use was 0.80 (0.59 to 1.09). When using less stringent matching criteria that allowed for inclusion of 2593 cases and 5185 controls, the adjusted OR was 0.73 (0.54 to 0.99). Similar results were found on analysis by sex and hypertension status. Colchicine used was not associated with a decreased risk of MI (aOR=1.17 (0.70 to 1.93)).
  
  
  CONCLUSIONS
  Allopurinol may be associated with a reduced risk of MI. No decreased risk of MI was found in colchicine users. Besides its urate-lowering property, allopurinol might have a cardioprotective effect.
authors.affiliation: LA-SER, Paris, France Conservatoire National des Arts & Métiers, Paris, France INSERM/Pasteur Institute, Paris, France.
authors.forename: L
authors.initials: L
authors.lastname: Grimaldi-Bensouda
authors.affiliation: Inserm U708-Neuroepidemiology, Bordeaux, France Université Bordeaux-Segalen, Bordeaux, France.
authors.forename: A
authors.initials: A
authors.lastname: Alpérovitch
authors.affiliation: LA-SER, Paris, France.
authors.forename: E
authors.initials: E
authors.lastname: Aubrun
authors.affiliation: Coronary disease unit, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris and Paris-Descartes University, Paris, France.
authors.forename: N
authors.initials: N
authors.lastname: Danchin
authors.affiliation: LA-SER, Centre for Risk Research, Montreal, Canada Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Rossignol
authors.affiliation: Department of Epidemiology, London School of Hygiene & Tropical Medicine, London, UK LA-SER Europe Ltd, London, UK.
authors.forename: L
authors.initials: L
authors.lastname: Abenhaim
authors.affiliation: Université Paris 7, UFR médicale, Assistance Publique-Hôpitaux de Paris, Hôpital Lariboisière, Fédération de Rhumatologie, Paris, Cedex 10, France Inserm U1132, Hôpital Lariboisière, Paris, Cedex 10, France.
authors.forename: P
authors.initials: P
authors.lastname: Richette
mesh_terms: D000368:Aged; D000493:Allopurinol / Q000627:therapeutic use*; D016022:Case-Control Studies; D003078:Colchicine / Q000627:therapeutic use*; D005260:Female; D006073:Gout / Q000188:drug therapy* / Q000453:epidemiology; D006074:Gout Suppressants / Q000627:therapeutic use*; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D065840:Protective Factors
chemical_list: D006074:Gout Suppressants; D000493:Allopurinol; D003078:Colchicine
keywords: Cardiovascular Disease; Gout; Treatment