Does elevated pulmonary artery systolic pressure predict mortality after surgery in patients with organic mitral regurgitation?
Elevated pulmonary artery systolic pressure (≥50 mmHg) is an independent predictor of overall and cardiovascular mortality after surgery for organic mitral regurgitation.
OBJECTIVE: To evaluate the predictors of pulmonary artery systolic pressure (PASP) in organic mitral regurgitation (MR) and its prognostic value after surgery. DESIGN: Prospective observational study, conducted from 1998 to 2006. SETTING: Echocardiography and cardiac surgery departments, University Hospital. PATIENTS: Echocardiography was carried out in 256 patients (63+/-12 years, 170 male) with organic MR (degenerative aetiology: 91%) referred for surgery. MAIN OUTCOME MEASURES: Echocardiography predictors of PASP. Postoperative end points were overall mortality and cardiovascular mortality. RESULTS: Baseline PASP was 45+/-14 mmHg, ranging from 25 to 105 mmHg. PASP was > or = 50 mmHg in 82 patients (32%). Left atrial volume (p=0.003), mitral deceleration time (p or = 50 mmHg or or = 50 mmHg is an independent predictor of overall and cardiovascular mortality after surgery in organic MR.
Tourneau et al. (Wed,) studied this question.