• Subacute bacterial endocarditis, which formerly was almost always fatal, can now be healed by antibiotics in many cases. Permanent recovery can be expected in 65 to 70% of the treated patients. This is illustrated in the present report on 17 patients in whom the diagnosis had been based on the clinical evidence and on positive blood cultures. In four patients the infection was superposed upon a preexistent congenital lesion. They have been observed for periods from 6 1/2 to 10 years after successful treatment. The histories show that some patients, especially if youthful, now recover without any residual disability.
Mendelson CE, Cahué A, Katz LN, Brams WA. LONG-TERM OUTLOOK FOR HEALED SUBACUTE BACTERIAL ENDOCARDITIS. JAMA. 1956;160(6):437-441. doi:10.1001/jama.1956.02960410013003