Conclusion
In conclusion, our data verify that RV systolic function is decreased in patients with severe and very severe MS. TDI and VVI echocardiographic features such as S’, TAPSE, RVFWS, and FAC are useful predictors of RV dysfunction. We advise regular echocardiographic measurements for MS patients in order to ensure early detection of RV dysfunction predictors. If impairments in these parameters were recognized early in the course of the disease, timely interventions might be able to prevent, decrease, or reverse the adverse effects of MS such as PH or RV dysfunction and drastically improve the prognosis of MS patients. Further studies with larger cohorts of mild, moderate, severe, and very severe MS cases are necessary to establish the extent of RV systolic dysfunction using various echocardiographic measurements.