The effects of anesthesia induction and positive pressure ventilation on right-ventricular function: an echocardiography-based prospective observational study.

Background: General anesthesia induction with the initiation of positive pressure ventilation creates a vulnerable phase for patients. The impact of positive intrathoracic pressure on cardiac performance has been studied but remains controversial. 3D echocardiography is a valid and MRI-validated bed-side tool to evaluate the right ventricle (RV).