Patients were divided into the following three main groups with regard to LVH type: concentric (relative wall thickness >0.45 and interventricular septum/left ventricular posterior wall, IVS/LVPW <1.3), eccentric (left ventricular diameter in systoles >32 and relative wall thickness <0.45) and asymmetric (IVS/LVPW >1.3), as in a previous study (12).
Relative wall thickness was measured at end-diastole as the ratio of twice the thickness of left ventricular PW/LVIDd (left ventricular internal diastolic diameter, LVIDd) (13).
If compared to the non-obese subjects, the obese had significantly higher values of the LV relative wall thickness
(0.44 [+ or -] 0.06 vs 0.39 [+ or -] 0.03, p <0.0001 for the IVS and 0.42 [+ or -] 0.06 vs 0.38 [+ or -] 0.04, p <0.0001 for the LVPW).
Alos, the relative wall thickness
and left ventricular mass index also increased in parallel to BMI
The values of left ventricular mass (LVM), left ventricular mass index (LVMI) and left relative wall thickness (RWT) were computed.
KEYWORDS: Left ventricular mass; Left ventricular mass index; Relative wall thickness; Echocardiography; Hypertension
In the HD group, the relative wall thickness
and the left atrial volume index were greater than those in the DCM group.
Relative wall thickness
, a measure of left ventricular geometry increased in a stepwise manner, becoming thicker as patients progressed from normoglycemia to newly diagnosed diabetes to chronic diabetes.
The effect is small and does not influence the relative wall thickness
variation resulting from sag, which is of principal interest in the present work.
Left ventricular mass of all athletes but relative wall thickness of only BP, swimmers, cyclists, and strength/power athletes were higher as compared with controls (p < 0.05).
Relative wall thickness (RWT) was obtained by dividing the sum of end diastolic LV posterior wall thickness (PWT) and interventricular septum thickness (IVS) by LV diameter.
Echocardiographic characteristic P [r.sup.2] LVMh x [m.sup.2.7], g/[m.sup.2.7] <0.0001 0.73 LVM, g <0.0001 0.50 End-diastolic posterior wall, cm <0.001 0.42 End-diastolic septum thickness, cm <0.001 0.43 Relative wall thickness
, cm <0.01 0.32 Myocardial performance index <0.001 0.44 Early diastolic filling wave velocity, m/s <0.01 0.31 (a) LVMh x [m.sup.2.7], left ventricular mass indexed for height.