Optimal Antibiotic Treatment for Bacteremia and Septic Shock due to Enterococcus faecalis

Initial Antibiotic Management (First Hour)

The American College of Critical Care Medicine recommends administering intravenous antimicrobials within the first hour of septic shock recognition, as each hour of delay increases mortality 1, 2
The Infectious Diseases Society of America suggests starting empirical broad-spectrum therapy that covers all probable pathogens (gram-positive, gram-negative, and potentially fungi) until pathogen identification is obtained 1, 2
For septic shock, use combination therapy with at least two antibiotics from different antimicrobial classes targeted at the most probable bacterial pathogens 1, 2

The American Heart Association recommends ampicillin IV (12 g/day divided into 4-6 doses) plus gentamicin IV to achieve bactericidal synergy 3

The Society of Critical Care Medicine recommends continuing combination therapy (β-lactam plus aminoglycoside) for no more than 3-5 days 1, 2
De-escalate to appropriate monotherapy as soon as the susceptibility profile is available and there is clinical improvement 1, 2
The typical duration is 7-10 days for most severe infections associated with sepsis and septic shock 1, 2

The Infectious Diseases Society of America suggests identifying the anatomical source of infection as quickly as possible and implementing source control intervention within the first 12 hours if medically and logistically feasible 4, 5
Remove any intravascular access device that may be the source once alternative access is established 4, 5