Association of strain parameters with probability of pulmonary hypertension
RV-FWS absolute values were negatively correlated with SPAP (r= -0.333, 95% CI -0.215 to 0.442) as well as with RA-GLS (r= -0.432, 95% CI -0.530 to -0.322). RV-FWS and RA-GLS explained 22.2% and 18.3% of the variability of sPAP, respectively. These trends were sustained after adjusting for age, sex and BSA. Interestingly, we observed that both parameters had a quadratic fit adjustment (Figure 4 ). Regarding the right atrial chamber assessment, the reservoir, conduit, and contractile phases had decreased parameters with advanced pulmonary hypertension categories suggesting a functional and structural decline of the RA function. However, when comparing specifically between the intermediate and high probability of PH groups, these changes where not statistically significant (Figure 5 ). This might be related to the small number of subjects classified with intermediate PH.