Abstract

BackgroundLimited data are available regarding the optimal management and prognosis of patients with cancer who develop an acute myocardial infarction. AimThe objective of this study was to analyse the characteristics and outcomes of patients according to cancer and myocardial infarction occurrence. MethodsBased on the French administrative hospital discharge database, the study collected information for all consecutive patients seen in French hospitals in 2013, excluding those with a history of myocardial infarction. The population was divided into two groups according to their history of cancer. We studied the following outcomes: all-cause and cardiovascular mortality; acute myocardial infarction; and ischaemic stroke. Data were collected after a 5-year follow-up. ResultsBetween 2013 and 2019, 3,381,472 patients were seen in French hospitals; among them, 3,323,757 had no history of myocardial infarction. Patients with a history of cancer (n=497,593) had higher incidences of all-cause mortality (17.82%/year vs 3.79%/year), cardiovascular mortality (1.61%/year vs 1.17%/year), myocardial infarction (0.82%/year vs 0.61%/year) and ischaemic stroke (0.91%/year vs 0.62%/year) compared with patients without cancer (n=2,826,164). After performing an adjusted competing-risk analysis, the cumulative incidence of acute myocardial infarction, cardiovascular death and ischaemic stroke incidence was found to be lower in patients with a history of cancer, whereas death of non-cardiac origin was more prevalent in patients with a history of cancer. ConclusionsIn this observational study, we have shown that patients with cancer have a higher incidence of all-cause mortality, cardiovascular mortality and myocardial infarction. However, multivariable analysis showed a lower cumulative incidence of these events.

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