“…During prosthesis cementation, IMP can reach values of 650 to 1500 mmHg (7)(8)(9) and the embolization may last for more than 20 min (5,6,15,33) . Although, fortunately, the vast majority of those patients do not really develop acute 'cor-pulmonale' during the most intense phase of the FE, they always present deep hemodynamic and respiratory changes during this period, such as: severe arterial hypertension, cardiac arrhythmia, increased pulmonary artery pressure and pulmonary vascular resistance, pulmonary arterial-venous shunt increase, and, consequently, a reduction on PaO2 (6,7,9,15,17,30,99) . Those effects may last just for a few minutes, or may remain for many hours post-operatively (5)(6)(7)55,58) .…”