Characterization and clinical significance of right ventricular mechanics in pulmonary hypertension evaluated with cardiovascular magnetic resonance feature tracking

Table 2 Global right ventricular strain and strain rate

Strain Parameter	Total (n = 110)	Group A (No PH and RVEF ≥50 %) (n = 17)	Group B (PH and RVEF ≥50 %) (n = 26)	Group C (PH and RVEF < 50 %) (n = 67)	P
GLS (%)	-15.85 ± 6.4	-22.10 ± 4.7	-20.10 ± 5.3	-12.56 ± 4.8	<0.001^bc
GCS (%)	-11.21 ± 4.9	-16.43 ± 4.7	-14.12 ± 3.5	-8.72 ± 3.5	<0.001^bc
GLSR (s^-1)	-1.09 ± 0.4	-1.46 ± 0.4	-1.33 ± 0.3	-0.89 ± 0.3	<0.001^bc
GCSR (s^-1)	-0.76 [-0.9 - (-0.5)]	-1.12 [-1.3 - (-0.9)]	-0.92 [-1.0 - (-0.7)]	-0.63 [-0.7 - (-0.4)]	<0.001^abc

Values are mean ± standard deviation or median [interquartile range]
GCS global circumferential strain, GCSR global circumferential strain rate, GLS global longitudinal strain, GLSR global longitudinal strain rate, PH pulmonary hypertension, RVEF right ventricular ejection fraction
Continuous variables are expressed as mean ± standard
^aStatistically significant differences between group A (control group) and group B
^bstatistically significant differences between group C and group B
^cstatistically significant differences between group A and group C

ISSN: 1532-429X