**4. RV dysfunction as a prognostic factor in patients with cardiac resynchronization therapy (CRT) and cardiac surgery**

The evaluation of the RV dysfunction has a prognostic role in the short and longterm outcomes of patients after cardiac resynchronization therapy (CRT). Nagy VC. et al. [37] studied 93 patients with heart failure and low basal value of RV global longitudinal strain and RV free wall strain.


### **5. Conclusions**

The evaluation of the function of RV in PH is essential in establishing the prognosis of PH. In addition to the size of the RA and the presence of pericardial effusion proposed by the guidelines, there are many echocardiographic parameters with prognostic value in PH. They are related to the systolic and diastolic dysfunction of the right ventricle explored by new echocardiographical techniques such as speckle tracking and 3D imaging. These promising techniques investigate in depth the function of the RV and the correlation between RV and pulmonary artery and allow an early diagnosis of the impairment of the RV in PH. Also, the new echographic techniques are useful in the prognostic evaluation of CRT and cardiac surgery. However, each of the echocardiographic parameters used in the assessment of the right ventricle has technical limitations, and it is necessary to use multiple clinical, biological, and echocardiographic tests for a correct evaluation of the prognosis of PH. The complexity of the RV makes useful a multiparametric examination, and modern techniques are increasingly useful. The modern multimodal evaluation of the RV includes not only echocardiography but also cardiac magnetic resonance, nuclear imaging techniques, metabolic imaging techniques, and cardiac scanners. Last but not the least, the influence of RV dysfunction on the LV can be systematically assessed.

*Echocardiographic Prognostic Factors in Pulmonary Hypertension DOI: http://dx.doi.org/10.5772/intechopen.107420*
