“…Hemodynamic monitoring refers to invasive monitoring of the arterial and venous system, used to measure intracardiac, intrapulmonary, and intravascular pressures and to determine the effectiveness of therapy. Despite the rapid advancement of non-invasive monitoring techniques, invasive hemodynamic monitoring is essential in ICUs (da Silva et al, 2019;Ramos et al, 2008;Dias et al, 2006) Invasive hemodynamic methods are also essential in defining PH. Recent studies have shown that, even with lower mPAP values, there is an increase in mortality rates (Maron et al, 2016) In December 2018, a consensus resulting from the 6 th World Symposium on Pulmonary Hypertension redefined PH to a situation where mPAP is greater than 20 mmHg and pulmonary vascular resistance is greater than or equal to 3 Wood units (Calderaro, et al, 2019;Simonneau et al, 2014;Simonneau et al, 2019).…”