“…The use of ECMO should be considered at an early stage of treatment in a haemodynamically unstable patient after heart valve surgery if that patient has low systolic pressure, low cardiac output, and, as a consequence, insufficient tissue perfusion in which clinical stabilization is not achieved despite the use of conservative treatment in combination with the use of catecholamines [ 6 , 22 ]. The administration of oxygenated blood to the arterial system with appropriate kinetic energy, generated by the ECMO pump, ensures the adequate perfusion of peripheral tissues and relieves the heart muscle by promoting its regeneration [ 23 , 24 , 25 ]. Therefore, knowledge of the predictors of postoperative cardiogenic shock that do not respond to pharmacological treatment is extremely important because it enables the identification of patients at risk of this complication, thus enabling the early implementation of ECMO, which increases the patient’s chances of survival.…”