The association of admission heart rate and in-hospital cardiovascular events in patients with non-ST-segment elevation acute coronary syndromes: results from 135 164 patients in the CRUSADE quality improvement initiative

Abstract

In contrast to patients with stable CAD, in the acute setting, the relationship between presenting HR and in-hospital cardiovascular outcomes has a 'J-shaped' curve (higher event rates at very low and high HRs). These associations should be considered in ACS prognostic models.