Echocardiographic evaluation
In all patients, ejection fraction, left ventricular diameters were
measured by echocardiography, according to the recommendations of the
American Association of Echocardiography6. Tricuspid
annulus, TV coaptation depth (CD) and tenting area were collected in
apical 4-chamber view. TR severity was graded as mild, moderate,
severe6. Recurrence of TR was defined as the presence
of TR graded moderate-or-more. TV remodeling was defined
according to at least one cutoff (CD≥6.5 mm, tenting area ≥0.85
cm2 and tricuspid annulus≥35 mm)5.RV dilatation was defined as a basal end-diastolic
diameter >42 mm and/or mid-level diameter >35
mm7,8. RV dysfunction was defined as
TAPSE <16 mm and/or TDI-S’ velocity <10
cm/sec7,8. Right ventricular remodeling was
defined as RV dilatation and/or dysfunction. A systolic pulmonary
pressure (sPAP)>55mmHg was considered as severe pulmonary
hypertension7,8. Failure of MV surgery at
follow-up was defined MV area ≤1.5 cm² and/or moderate-or-more
regurgitation.