Value of exercise stress electrocardiography for stratification of exercise capacity and left ventricular systolic and diastolic function on coronary slow flow: case-control study

Table 3 Comparison of left ventricular systolic and diastolic function at rest

	Controls (n = 24)	CSFP ExECG (−) (n = 24)	CSFP ExECG (+) (n = 6)	P-value
LV end-diastolic diameter (mm)	47.12 ± 3.63	47.02 ± 4.87	47.63 ± 2.77	0.83
LV end-systolic diameter (mm)	31.36 ± 3.51	32.39 ± 4.13	32.06 ± 2.80	0.61
LV end-diastolic volume (ml)	80.30 ± 15.02	78.60 ± 13.81	77.52 ± 18.93	0.78
LV ejection fraction (%)	63.00 ± 4.20	63.20 ± 3.70	65.00 ± 4.00	0.15
LV GLS (%)	−21.26 ± 2.74	−19.98 ± 2.32^*	−19.70 ± 2.38^*	0.01
LA volume index (ml/m²)	27.06 ± 5.12	29.99 ± 3.57^*	30.56 ± 5.64^*	0.03
Mitral E (cm/s)	73.85 ± 16.47	72.34 ± 16.65	61.72 ± 15.75^*#	< 0.001
Mitral A (cm/s)	74.63 ± 16.81	71.28 ± 13.33	67.07 ± 13.59^*	0.08
Mitral E/A	1.12 ± 0.33	1.09 ± 0.28	0.94 ± 0.21^*	0.05
Mitral septal e’ (cm/s)	7.40 ± 2.05	6.97 ± 1.76	6.10 ± 1.74^*	0.01
Mitral lateral e’ (cm/s)	10.41 ± 2.70	9.55 ± 2.18	8.07 ± 2.87^*#	< 0.001
Mitral average e’ (cm/s)	8.94 ± 2.19	8.26 ± 1.80	7.09 ± 2.14^*#	< 0.001
Mitral average E/e’	8.59 ± 2.20	8.99 ± 2.09	9.31 ± 2.87	0.33
Tricuspid regurgitation velocity (m/s)	1.66 ± 0.69	1.80 ± 0.54	1.93 ± 0.59	0.29

Values shown are mean ± SD. Abbreviations: LV, left ventricle; GLS, global longitudinal strain; LA, left atrium; E, early diastolic flow velocity; A, late diastolic flow velocity; e’, early diastolic annular velocity
^*P < 0.05 vs. controls; ^#P < 0.05 vs. CSFP ExECG (−)

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