Effectiveness of an Early Versus a Conservative Invasive Treatment Strategy in Acute Coronary Syndromes: A Nationwide Cohort Study

Kim Wadt Hansen, Rikke Sorensen, Mette Madsen, Jan Kyst Madsen, Jan Skov Jensen, Lene Mia von Kappelgaard, Poul Erik Mortensen, Theis Lange, Soren Galatius

7 Citationer (Scopus)

Abstract

BACKGROUND: Randomized clinical trials have found that early invasive strategies reduce mortality, myocardial infarction (MI), and rehospitalization compared with a conservative invasive approach in acute coronary syndromes (ACSs), but the effectiveness of such strategies in real-world settings is unknown.

OBJECTIVE: To investigate adverse cardiovascular outcomes of an early versus a conservative invasive strategy in a national cohort of patients with ACSs.

DESIGN: Retrospective cohort study.

SETTING: Administrative health care data on hospitalizations, procedures, and outcomes abstracted from the Danish national registries and covering all acute invasive procedures in patients presenting with an ACS.

PATIENTS: 19 704 propensity score-matched patients hospitalized with a first ACS between 1 January 2005 and 31 December 2011.

MEASUREMENTS: Risk for cardiac death or rehospitalization for MI within 60 days of hospitalization.

RESULTS: Compared with a conservative approach, early invasive strategies were associated with a lower risk for cardiac death (cumulative incidence, 5.9% vs. 7.6%; adjusted hazard ratio [HR], 0.75 [95% CI, 0.66 to 0.84]; P < 0.001). Similar results were found for rehospitalization for MI (cumulative incidence, 3.4% vs. 5.0%; adjusted odds ratio, 0.67 [CI, 0.58 to 0.77]; P < 0.001) and all-cause death (cumulative incidence, 7.3% vs. 10.6%; adjusted HR, 0.65 [CI, 0.59 to 0.72]; P < 0.001).

LIMITATION: Potential residual confounding due to lack of core clinical variables.

CONCLUSION: In this real-world cohort of patients with a first hospitalization for an ACS, the use of an early invasive treatment strategy was associated with a lower risk for cardiac death and rehospitalization for MI compared with a conservative invasive approach.

PRIMARY FUNDING SOURCE: Department of Cardiology, University Hospital Gentofte.

OriginalsprogEngelsk
TidsskriftAnnals of Internal Medicine
Vol/bind163
Udgave nummer10
Sider (fra-til)737-46
Antal sider10
ISSN0003-4819
DOI
StatusUdgivet - 17 nov. 2015

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