  | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
   
   
    | • | 
    Efforts
    to establish stable hemodynamics off CPB 
     | 
     | 
   
   
     | 
    were
    unsuccessful despite volume administration and 
     | 
   
   
     | 
    alpha
    agonists. 
     | 
     | 
   
   
     | 
   
   
    | • | 
    CPB
    was reinstituted for revision of the MV repair. 
     | 
     | 
   
   
     | 
    The
    decision was made that further attempts to 
     | 
     | 
   
   
     | 
    revise
    the repair were futile and the MV was replaced 
     | 
     | 
   
   
     | 
    with
    a mechanical bileaflet prosthetic valve shown 
     | 
     | 
   
   
     | 
    below
    by TEE after CPB. 
     | 
     |