Speckle echocardiographic left atrial strain and stiffness index as predictors of maintenance of sinus rhythm after cardioversion for atrial fibrillation: a prospective study

Table 2 Echocardiographic and strain variables of patients with atrial fibrillation (AF) as compared to the control group

Echo variables	AF (n=41)			Controls (n=41)	P value
LVIDd, mm	50.2 ± 2.6			44.8 ± 1.8	<0.01
LVIDs, mm	35.6 ± 3.2			28.0 ± 1.8	<0.01
STd, mm	10 ± 0.6			8.9 ± 0.6	<0.01
PWTd, mm	10 ± 0.6			8.1 ± 0.6	<0.01
LVEF (%)	54.0 ± 3.6			65.1 ± 1.0	<0.01
LAD, mm	45.9 ± 4.0			33.4 ± 2.0	<0.01
LAVI, ml/M²	34.7 ± 4.0			23.4 ± 3.2	<0.01
E/E’	10.7 ± 1.8			7.6 ± 0.8	<0.01
	Pre- CV	Post- CV	P value
2CLAS, %	12.7 (10.2 – 15.2)	16.5 (13.2 – 19.9)	0.01	38.3 (33.1 – 43.5)	<0.01
4CLAS, %	11.0 (8.6 – 13.5)	15.2 (12.4 – 18.0)	<0.01	33.1 (29.6 – 36.6)	<0.01
LAS, %	11.9 (9.8 – 13.9)	15.9 (13.1 – 18.7)	<0.01	35.7 (32.1 – 39.3)	<0.01
2CLASt	1.06 (0.81 – 1.32)	1.25 (0.16 – 2.33)	0.67	0.24 (0.19 – 0.28)	<0.01
4CLASt	1.57 (1.04 – 2.10)	0.85 (0.61 – 1.09)	0.02	0.24 (0.20 – 0.28)	<0.01
LASt	1.32 (0.97 – 1.67)	1.05 (0.44 – 1.66)	0.62	0.23 (0.19 – 0.27)	<0.01

LVIDd – Left ventricular internal diameter at end- diastole, LVIDs – Left ventricular internal diameter at end- systole, STd – Interventricular septum thickness at end-diastole, PWTd – Left ventricular posterior wall thickness at end-diastole, LVEF – Left ventricular ejection fraction, LAD – Left atrial diameter, LAVI – Left atrial volume index, E = early filling velocity of transmitral Doppler flow, E’ = Average early diastolic velocity of medial and lateral mitral annulus, 2CLAS - 2 chamber average peak systolic strain, 4CLAS - 4 chamber average peak systolic strain, LAS – Mean peak systolic strain of 2C and 4C, 2CLASt - 2 chamber left atrial stiffness, 4CLASt – 4 chamber left atrial stiffness, LASt – Mean left atrial stiffness of 2C and 4C.

ISSN: 1476-7120