LV indicates left ventricular; LA left atrium; RV right ventricular; RA
right atrium; IVS interventricular septum; LVPW left ventricular
posterior wall; AAO ascending aorta; PA pulmonary artery; EDV
end-diastolic volume; ESV end-systolic volume; EF ejection fraction; AV
aortic blood flow velocity; E peak mitral inflow early filling velocity;
e’, early diastolic myocardial velocity; TAPSE Tricuspid annulus
systolic displacement; TDI-s early systolic myocardial velocity; IVC
inferior vena cava; * compared with control group ,P< 0.05; # compared with mild patients,P< 0.05.