Table 3.

Strain and strain rate analysis

Characteristic	Overall	AFR group	NR group	Non-AF	p value
Atrial emptying fraction	60.0±16.2	55.0±16.9	64.3±14.5	78±9	0.001
Global strain	30.9±20.9	19.9±20.49	29.2±14.78	46.6±19.80	<0.001
Lateral wall
Annular S	18.2±14.29	11.4±7.03	20.2±14.24	23.4±7.78	0.01
Mid S	45.9±54.88	37.8±78.69	39.1±20.71	65.4±50.60	<0.001
Roof S	40.4±41.67	19.5±17.99	41.8±52.89	63.9±30.92	<0.001
Septal wall
Roof S	28.7±39.65	13.7±9.41	21.9±16.26	55.7±64.98	<0.001
Mid-S	34.0±21.25	25.4±20.60	34.2±21.09	44.0±8.35	<0.001
Annular S	31.5±20.54	22.7±16.40	31.3±21.07	42.2±19.96	<0.001
Peak systolic global SR	1.3±0.65	0.9±0.44	1.3±0.57	1.8±0.64	<0.001
Lateral wall
Annular SSR	1.2±0.77	0.9±0.41	1.2±0.67	1.7±1.02	<0.001
Mid-SSR	1.9±1.46	1.4±1.55	1.9±1.34	2.4±1.39	<0.001
Roof SSR	2.0±1.57	1.2±0.76	1.9±1.34	3.09±2.00	<0.001
Septal wall
Roof SSR	1.6±1.37	1.0±0.48	1.4±0.76	2.7±2.04	<0.001
Mid-SSR	1.9±1.00	1.3±0.68	1.9±0.82	2.5±1.21	<0.001
Annular SSR	1.8±1.11	1.3±0.58	1.9±1.44	2.3±0.77	<0.001
Early diastolic global SR	–1.4±0.82	–1.0±0.56	–1.4±0.66	–2.1±0.89	<0.001
Lateral wall
Annular DSR	–1.2±0.71	–0.9±0.39	–1.1±0.42	–1.8±0.96	<0.001
Mid-DSR	–2.1±1.70	–1.7±2.11	–1.9±0.95	–2.9±1.80	<0.001
Roof DSR	–2.1±1.74	–1.2±0.66	–2.2±1.94	–3.4±1.65	<0.001
Septal wall
Roof DSR	–1.6±1.08	–1.0±0.51	–1.4±0.75	–2.5±1.04	<0.001
Mid-DSR	–1.9±1.19	–1.5±0.70	–1.6±0.59	–2.8±1.74	<0.001
Annular DSR	–2.0±1.93	–1.3±0.74	–2.1±2.68	–2.7±1.34	<0.001
Peak systolic global V	–2.4±0.82	–2.1±0.73	–2.6±0.91	–2.8±0.58	<0.001
Early diastolic global V	2.5±0.98	2.1±0.99	2.3±0.68	3.3±0.93	<0.001

S strain, SR strain rate, SSR peak systolic SR, Global V global velocity, SV peak systolic velocity, DSR early diastolic SR