Operative Details and Hospital Outcomes
Operative details are presented in Table 2 . Most patients
(93%) had concomitant CABG, and 4% underwent concomitant tricuspid
valve surgery. In the replacement group, 72% of the patients had
chordal preservation. In the repair group, a rigid or semirigid ring was
used to achieve a downsizing annuloplasty. Patients who underwent MVR
had longer cardiopulmonary bypass (CPB) and cross-clamp times (p
< 0.0001). Hospital outcomes are summarized in Table
3 . Patients who underwent MV replacement had a higher rate of LCOS with
an increased requirement for inotropic (p = 0.01) and IABP support (p
< 0.0001). These differences were associated with
significantly higher unadjusted mortality in the MV replacement cohort.