“…Not unexpectedly, dyspnea was associated with a 2.4-fold higher adjusted risk of death and a 2.2-fold higher adjusted risk of death/ AMI compared to typical chest pain. In keeping with these findings, numerous previous studies have provided incremental evidence that patients with atypical symptoms define a high-risk group because they are more likely to be older (26,27 ), female (24,28 ), hypertensive, diabetic, and to have a history of heart failure (24,26 ). The higher risk associated with atypical presentation compared to typical chest pain is substantiated by higher rates of in-hospital heart failure, cardiogenic shock, sustained ventricular tachycardia or ventricular fibrillation, atrial fibrillation or flutter, renal failure, or death (26 ).…”