title: Anterolateral papillary muscle rupture caused by myocardial infarction: A case report.
abstract: BACKGROUND
  The rupture of the anterolateral papillary muscle is less common than the posteromedial papillary muscle since the anterolateral muscle has dual blood supplies, while the posteromedial papillary muscle has a single blood supply.
  
  
  METHODS
  We present a case report of a 42 year old male presenting with heart failure being diagnosed to have mitral regurgitation from the partial rupture of the anterolateral papillary muscle due to coronary artery disease. The patient underwent a mitral valve replacement and concomitant coronary artery bypass grafting of the first and the second obtuse marginal arteries.
  
  
  CONCLUSIONS
  Acute mitral regurgitation can be precipitated by acute myocardial infarction due to rupture of the anterolateral papillary muscle.
authors.affiliation: Coney Island Hospital, 2601 Ocean Parkway, Brooklyn, NY 11235, USA. suriyakbrsj@yahoo.com.
authors.forename: Suriya
authors.initials: S
authors.lastname: Jayawardena
authors.forename: Anne S
authors.initials: AS
authors.lastname: Renteria
authors.forename: Olga
authors.initials: O
authors.lastname: Burzyantseva
authors.forename: Gowda
authors.initials: G
authors.lastname: Lokesh
authors.forename: Louis
authors.initials: L
authors.lastname: Thelusmond