Indications for surgery in Bacterial Endocarditis or Infective Endocarditis.
http://heart.bmj.com/content/90/6/618
http://www.acc.org/latest-in-cardiology/ten-points-to-remember/2016/01/08/15/13/timing-of-surgery-in-infective-endocarditis
https://www.ncbi.nlm.nih.gov/pubmed/28251509
https://www.uptodate.com/contents/surgery-for-left-sided-native-valve-endocarditis