Speckle tracking echocardiography to assess regional ventricular function in patients with apical hypertrophic cardiomyopathy

Table 1 Demographic and echocardiographic variables

No. of patients	20
Age (yr)	53 ± 16
Women, n (%)	10 (50)
RV (mm)	15 ± 5
LVDD (mm)	48 ± 5
LVSD (mm)	24 ± 5
EF (%)	69 ± 5
LA (mm)	44 ± 7
Antero-apical (mm)	16 ± 2
Infero-apical (mm)	15 ± 3
Lateral-apical (mm)	17 ± 3
Septal-apical (mm)	17 ± 3
Apex/LVPW ratio	2.1 ± 0.4

Values are expressed as number (%) of patients or mean ± SD. RV: Right ventricle; LVDD: Left ventricular diastolic diameter; LVSD: Left ventricular systolic diameter; LA: Left atrial diameter; LVPW: Left ventricular posterior wall thickness in diastole.

Table 2 Midwall and endocardial long peak systolic strain

Segments	Midwall LPSS(%)	Endocardial LPSS (%)	P value
Mean GLPSS	-13 (-14/-8.8)	-19.4 (-23.9/-16.2)	< 0.001
Antero-basal	-14.5 (-18/-8)	-16 (-19.5/-12.3)	NS
Latero-basal	-12 (-14/-10)	-15 (-18.7/-12)	NS
Postero-basal	-15 (-20/-9)	-17 (-19.7/-14.2)	NS
Infero-basal	-19 (-22.7/-13.7)	-21 (-22/-17.2)	NS
Postero-basal septum	-16 (-23.5/-14)	-18 (-22.7/-13.2)	NS
Antero-basal septum	-17.5 (-21/-8.25)	-18 (-25.2/-14)	NS
Antero-medial	-11.5 (-15/-7.2)	-19 (-23.5/-12)	< 0.001
Latero-medial	-7.5 (-8.7/-2.5)	-18 (-20.7/-10.5)	< 0.001
Postero-medial	-10.5 (-13.7/-7.2)	-17.5 (-23/-15)	< 0.001
Infero-medial	-16 (-20.7/-12.5)	-20.5 (-22.7/-18.2)	< 0.001
Postero-medial septum	-18 (-22.5/-11.5)	-20 (-29/-15)	< 0.001
Antero-medial septum	-16.5 (-18.7/-9.2)	-23.5 (-27.7/-16.2)	< 0.001
Antero-apical	-8 (-16/-1.5)	-21.5 (-29.7/-16.2)	< 0.001
Lateral-apical	-2 (-8/-2.5)	-22.5 (-28.7/-15)	< 0.001
Infero-apical	-8 (-18.2/-0.25)	-22.5 (-28.7/-18)	< 0.001
Septal-apical	-9 (-17.2/-5.2)	-23.5 (-31.5/-16.2)	< 0.001
Apex	-8 (-16/-1.5)	-21.5 (-29.7/-10.2)	< 0.001

Values are expressed as medians and their respective interquartile intervals. LPSS: Longitudinal peak systolic strain; NS: No significance.

Table 3 Midwall and endocardial global longitudinal peak systolic strain

Segments	Mesocardial GLPSS (%)	Endocardial GLPSS (%)	Media of increment	CI	Increase of GLPSS)	P value
Basal	-15.5 ± -6.93	-17.9 ± -7.5	-2.4	-3/-1.3	18%	NS
Medial	-12.4 ± -7.3	-19.7 ± -7.6	-7.2	-8.4/-6	52%	< 0.001
Apical	-7.3 ± -8.8	- 22.8 ± -7.8	-15.5	-17/-13	168%	< 0.001

Values are expressed as mean ± standard deviation. GLPSS: Global longitudinal peak systolic strain; CI: Confidence intervals; NS: No significance.