Use of invasive strategy in non-ST-segment elevation myocardial infarction is a major determinant of improved long-term survival: FAST-MI (French Registry of Acute Coronary Syndrome)

Etienne Puymirat, Guillaume Taldir, Nadia Aissaoui, Gilles Lemesle, Luc Lorgis, Thomas Cuisset, Pierre Bourlard, Bruno Maillier, Gregory Ducrocq, Jean Ferrieres, Tabassome Simon, Nicolas Danchin
JACC. Cardiovascular Interventions 2012, 5 (9): 893-902

OBJECTIVES: This study sought to assess the impact of invasive strategy (IS) versus a conservative strategy (CS) on in-hospital complications and 3-year outcomes in patients with non-ST-segment elevation myocardial infarction (NSTEMI) from the FAST-MI (French Registry of Acute Coronary Syndrome).

BACKGROUND: Results from randomized trials comparing IS and CS in patients with NSTEMI are conflicting.

METHODS: Of the 3,670 patients in FAST-MI, which included patients with acute myocardial infarction (within 48 h) over a 1-month period in France at the end of 2005, 1,645 presented with NSTEMI.

RESULTS: Of the 1,645 patients analyzed, 80% had an IS. Patients in the IS group were younger (67 ± 12 years vs. 80 ± 11 years), less often women (29% vs. 51%), and had a lower GRACE (Global Registry of Acute Coronary Events) risk score (137 ± 36 vs. 178 ± 34) than patients treated with CS. In-hospital mortality and blood transfusions were significantly more frequent in patients with CS versus IS (13.1% vs. 2.0%, 9.1% vs. 4.6%). Use of IS was associated with a significant reduction in 3-year mortality and cardiovascular death (17% vs. 60%, adjusted hazard ratio [HR]: 0.44, 95% confidence interval [CI]: 0.35 to 0.55 and 8% vs. 36%, adjusted HR: 0.37, 95% CI: 0.27 to 0.50). After propensity score matching (181 patients per group), 3-year survival was significantly higher in patients treated with IS.

CONCLUSIONS: In a real-world setting of patients admitted with NSTEMI, the use of IS during the initial hospital stay is an independent predictor of improved 3-year survival, regardless of age. (French Registry of Acute Coronary Syndrome [FAST-MI]; NCT00673036).

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