highly significantp < 0.001
Correlation between RA performance and RVEF was weak but highly significant for all atrial functional parameters (RA ε s r = 0.19, SRs r = 0.23, ε e r = 0.15, SRe r = −0.17, ε a r = 0.14, and SRa −0.13, p < 0.001 for all).