The unexpected silent manifestation of myocardial infarctions in ischemic heart failure patients: Insights from a case-control study Gabriel Cordeiro Polo Mendes; Paulo Cury Rezende; Arthur Cicupira Rodrigues de Assis; Vitor Coutinho Andrade; Thiago Luis Scudeler; Marcela Francisca da Silva; Mauricio Rigodanzo Mocha; Whady Hueb; Jose Antonio Franchini Ramires; Roberto Kalil Filho;