Prognostic implications of Q waves at presentation in patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary intervention: An analysis of the HORIZONS-AMI study.

ABSTRACT:

Background

Presence of Q waves on the presenting electrocardiogram (ECG) in patients with ST-segment elevation myocardial infarction (STEMI) has been associated with worse prognosis; however, whether the prognostic value of Q waves is influenced by baseline characteristics and/or rapidity of revascularization based on the guideline-based metric of door-to-balloon time remains unknown.

Hypothesis

We hypothesized that Q waves in the presenting ECG will be predictive of long term mortality regardless of time to reperfusion.

Methods

The Harmonizing Outcomes With Revascularization and Stents in Acute Myocardial Infarction (HORIZONS-AMI) trial enrolled 3602 patients with STEMI undergoing primary percutaneous coronary intervention. We stratified patients without prior histor

SUBMITTER: Kosmidou I 

PROVIDER: S-EPMC6490428 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature