Time-Dependent Regional Myocardial Strains in Patients with Heart Failure with a Preserved Ejection Fraction

Table 3

Average peak longitudinal and circumferential strain in the base, mid, and apical regions of the heart for both the endocardium (endo) and epicardium (epi) for control versus HFpEF patients.

Myocardium layer,; myocardium level	Control peak strain (%)	HFpEF peak strain (%)	Absolute difference between; control and HFpEF (%)	value
Longitudinal strain
Base, endo	−16.91 ± 8.25	−11.06 ± 9.72	5.86	<0.001
Base, epi	−17.17 ± 8.46	−10.52 ± 9.29	6.64	<0.001
Mid, endo	−15.53 ± 6.13	−11.08 ± 8.58	4.45	<0.001
Mid, epi	−14.67 ± 5.54	−10.52 ± 7.52	4.15	<0.001
Apex, endo	−15.66 ± 7.49	−9.08 ± 10.44	6.58	<0.001
Apex epi	−15.83 ± 7.38	−6.70 ± 8.80	9.14	<0.001
Circumferential strain
Base, endo	−21.94 ± 7.73	−16.07 ± 13.93	5.88	<0.001
Base, epi	−15.27 ± 7.82	−12.77 ± 11.38	2.49	<0.001
Mid, endo	−21.61 ± 8.49	−17.79 ± 16.23	3.82	0.002
Mid, epi	−15.02 ± 7.97	−11.94 ± 15.74	3.08	<0.001
Apex, endo	−16.98 ± 10.64	−10.39 ± 16.53	6.59	<0.001
Apex epi	−16.98 ± 10.64	−11.72 ± 16.25	5.25	<0.002