Population Health Research Institute
Study List

OASIS Registry (Completed)
Organization to Assess Strategies for Ischemic Syndromes

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The study evaluated variations between countries in invasive cardiac procedures and outcomes in patients with suspected unstable angina or myocardial infarction without initial ST elevation. Significant differences between countries were observed.  The study concluded that higher rates of invasive and revascularisation procedures were associated with lower rates of refractory angina or readmission for unstable angina, no apparent reduction in cardiovascular death or myocardial infarction, but with higher rates of stroke and suggested that randomised trials should assess the relative impact of conservative and more aggressive approaches to invasive cardiac procedures and revascularisations in patients with unstable angina.

Study Design: Observational Study.

Intervention: N/A.

Length of Study: 2 years

# of Patients: 7,987

Patient Populations: Unstable angina or suspected acute myocardial infarction.


Presentations

Not available at this time.


Publications (for a full listing of publications, please visit the 'Media and Publications' section)

Yusuf S, Flather M, Pogue J, Hunt D, Varigos J, Piegas L, Avezum A, Anderson J, Keltai M, Budaj A, Fox K, Ceremuzynski L.  Variations between countries in invasive cardiac procedures and outcomes in patients with suspected unstable angina or myocardial infarction without initial ST elevation. OASIS (Organisation to Assess Strategies for Ischaemic Syndromes) Registry Investigators. Lancet. 1998;352(9127):507-14.

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