Right Ventricular Mechanical Pattern in Health and Disease: Beyond Longitudinal Shortening

摘要: Right ventricular (RV) function has proven to be a prognostic factor in heart failure with reduced and preserved ejection fraction pulmonary hypertension. RV is also cornerstone the management of novel clinical issues, such as mechanical circulatory support devices or grown-up congenital disease patients. Despite notable amount circumferentially oriented myofibers subepicardial layer myocardium, non-longitudinal motion directions are often neglected everyday assessment by echocardiography. However, complex contraction pattern incorporates different components along three anatomically relevant axes: longitudinal shortening traction tricuspid annulus towards apex, radial free wall referred "bellows effect", anteroposterior chamber stretching over septum. Advanced echocardiographic techniques, speckle-tracking 3D echocardiography allow an in-depth characterization pattern, providing better understanding systolic diastolic function. In our current review, we summarize existing knowledge regarding adaptation pressure- and/or volume-overloaded states other physiologic pathologic conditions.