Quantitative evaluation of myocardial layer-specific strain using two-dimensional speckle tracking echocardiography in septic patients

Table 3 Conventional echocardiography measurements and layer-specific strain of non-SICM and control group

	non-SICM (LVEF ≥ 50%) (n = 57)	Control (n = 21)	p
*Conventional echocardiography*
LVEDD/BSA (mm/m²)	27.2 ± 4.3	27.5 ± 3.2	0.763
LVESD/BSA (mm/m²)	18.2 ± 4.2	18.4 ± 3.	0.183
LA/BSA (mm/m²)	18.2 ± 4.2	17.8 ± 3.1	0.718
RWT^*	0.4 [0.4–0.5]	0.4 [0.3–0.4]	0.071
LVEF (%)	58.7 ± 7.0	62.0 ± 7.8	0.086
E (cm/s)	84.9 ± 20.8	80.6 ± 13.9	0.382
A (cm/s)	76.2 ± 21.6	73.4 ± 17.5	0.597
E/A^*	1.1 [0.9–1.4]	1.1 [0.9–1.3]	0.933
Average e′^*	9.3 [7.9–11.1]	10.1 [8.2–12.4]	0.370
E/e′ (cm/s) ^*	9.2 [7.2–10.8]	8.0 [6.4–9.6]	0.092
*Longitudinal Strain*
LS-endo (%)	-20.6 ± 5.2	-22.7 ± 5.0	0.121
LS-mid (%)	-19.7 ± 5.0	-21.9 ± 5.0	0.085
LS-epi (%)	-18.5 ± 4.7	-21.4 ± 5.0	0.024
GLS (%)	-19.6 ± 4.9	-22.0 ± 4.9	0.063
*Circumferential Strain*
CS-endo (%)	-29.4 ± 8.0	-32.3 ± 8.9	0.177
CS-mid (%)	-22.2 ± 7.9	-25.3 ± 9.2	0.147
CS-epi (%)	-20.8 ± 7.4	-22.9 ± 8.3	0.282
GCS (%)	-24.1 ± 7.6	-26.8 ± 8.3	0.179

Data are expressed as mean ± SD unless stated otherwise. LVEDD left ventricular end diastolic diameter, LVESD left ventricular end systolic diameter, LAAPD left atrial anterior and posterior diameter, BSA body surface area, RWT relative wall thickness, LVEF left ventricular ejection fraction, E mitral inflow peak early diastolic velocity (pulsed doppler), A mitral inflow peak late diastolic velocity (pulsed doppler), Average e′ average of lateral and interventricular mitral diastolic velocities (tissue doppler imaging). LS global longitudinal strain, CS global circumferential strain, endo endocardium, mid middle myocardium, epi epicardium. GLS global longitudinal strain, GCS global circumferential strain, endo endocardium, mid middle myocardium, epi epicardium
^*Median (interquartile range)

ISSN: 1471-2253