Bent Raungaard

Comparison of Acute Versus Subacute Coronary Angiography in Patients With NON-ST-Elevation Myocardial Infarction (from the NONSTEMI Trial)

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The optimal timing of coronary angiography (CAG) in high-risk patients with acute coronary syndrome without persisting ST-segment elevation (NST-ACS) remains undetermined. The NON-ST-Elevation Myocardial Infarction trial aimed to compare outcomes in NSTE-ACS patients randomized to acute CAG (STEMI-like approach) with patients randomized to medical therapy and subacute CAG. We randomized 496 patients with suspected NST-ACS based on symptoms and significant regional ST depressions and/or elevated point-of-care troponin T (POC-cTnT) (≥50 ng/l) to either acute CAG (<2 hours, n = 245) or subacute CAG (<72 hours, n = 251). The primary end point was a composite of all-cause death, reinfarction, and readmission with congestive heart failure within 1 year from randomization. A final acute coronary syndrome (ACS) diagnosis was assigned to 429 (86.5%) patients. The median time from randomization to revascularization was 1.3 hours in the acute CAG group versus 51.1 hours in the subacute CAG group (p <0.001). The composite end point occurred in 25 patients (10.2%) in the acute CAG group and 29 (11.6%) in the subacute CAG group, p = 0.62. The acute CAG group had a 1-year all-cause mortality of 5.7% compared with 5.6% in the subacute CAG group, p = 0.96. In conclusion, neither the composite end point of all-cause death, reinfarction, and readmission with congestive heart failure nor mortality differed between an acute and subacute CAG approach in NSTE-ACS patients. However, identification of NSTE-ACS patients in the prehospital phase and direct triage to an invasive center is feasible, safe and may facilitate early diagnosis and revascularization.

OriginalsprogEngelsk
TidsskriftThe American Journal of Cardiology
Vol/bind124
Nummer6
Sider (fra-til)825-832
Antal sider8
ISSN0002-9149
DOI
StatusUdgivet - sep. 2019

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