Integrating invasive hemodynamic parameters into risk stratification of acute myocardial infarction and cardiogenic shock.

A ratio of systolic blood pressure over left ventricle end-diastolic pressure (SBP/LVEDP) ≤4 identifies patients with ST-elevation myocardial infarction (STEMI) at greater risk of in-hospital mortality or that may require the use of mechanical circulatory support (MCS). The predictive performance of the SBP/LVEDP ratio was comparable to non-invasive hemodynamic parameters (the shock index and the modified shock index) and established clinical risk stratification tools (the TIMI risk score). Alongside established clinical risk factors, invasive hemodynamic parameters may help in identifying STEMI patients who may benefit from early MCS.