“…Emergency surgery (within 24 hours): NVE or PVE and severe congestive HF or cardiogenic shock caused by: acute valvular regurgitation, severe prosthetic dysfunction (dehiscence or obstruction), fistula into a cardiac chamber or the pericardial space -Urgent surgery (within days): NVE with persistent congestive HF, signs of poor hemodynamic tolerance, or abscess; PVE with persistent congestive heart failure, signs of poor hemodynamic tolerance, or abscess; PVE caused by staphylococci or Gramnegative organisms, large vegetation (> 10 mm) with an embolic event, large vegetation (> 10 mm) with other predictors of a complicated course, very large vegetation (> 15 mm), especially if conservative surgery is available, large abscess or periannular involvement with uncontrolled infection; -Early elective surgery (during the in-hospital stay): Severe aortic regurgitation with congestive HF and good response to medical therapy, PVE with valvular dehiscence or congestive heart failure and good response to medical therapy, presence of abscess or periannular extension, persistent infection when extracardiac focus has been excluded, fungal or other infections resistant to medical cure (Prendergast & Tornos, 2010).…”