The objective was to measure the impact of exposure to coxibs and non-steroidal antiinflammatory drugs (NSAID) on morbidity and mortality in older patients with acute myocardial infarction (AMI). A nested case-control study was carried out using an exhaustive population-based cohort of patients aged 66 years and older living in Quebec (Canada) who survived a hospitalization for AMI (ICD-9 410) between 1999 and 2002. The main variables were all-cause and cardiovascular (CV) death, subsequent hospital admission for AMI, and a composite end-point including recurrent AMI or CV death. Conditional logistic regressions were used to estimate the risk of mortality and morbidity. A total of 19,823 patients aged 66 years and older survived hospitalization for AMI in the province of Quebec between 1999 and 2002. After controlling for covariables, the risk of subsequent AMI and the risk of composite end-point were increased by the use of rofecoxib. The risk of subsequent AMI was particularly high for new rofecoxib users (HR 2.47, 95% CI 1.57-3.89). No increased risk was observed for celecoxib users. No increased risk of CV death was observed for patients exposed to coxibs or NSAIDs. Patients newly exposed to NSAIDs were at an increased risk of death (HR 2.22, 95% CI 1.30-3.77) and of composite end-point (HR 2.28, 95% CI 1.35-3.84). Users of rofecoxib and NSAIDs, but not celecoxib, were at an increased risk of recurrent AMI and of composite end-point. Surprisingly, no increased risk of CV death was observed. Further studies are needed to better understand these apparently contradictory results.
Cyclooxygenase-2, non-steroidal antiinflammatory drugs, cardiovascular mortality, acute myocardial infarction.
This project was subsidized by the Network of Centers of Excellence GEOIDE. The principal investigator was also supported by the Department of Family Medicine, Université de Sherbrooke, the Clinical Research Centre, Sherbrooke University Hospital; and the Fonds de Recherche en Santé du Québec.
August 13, 2009
December 01, 2009
Alain Vanasse, Department of Family Medicine, Faculty of Medicine, Université de Sherbrooke 3001 12th Avenue North, Sherbrooke (Quebec) J1H 5N4, Canada. E-mail: Alain.Vanasse@USherbrooke.ca