Treatment of Peripheral Staphylococcus aureus Septic Phlebitis

Initial Management

The infected catheter must be removed as S. aureus infection is a clear indication for catheter removal, according to the Infectious Diseases Society of America 1, 2, 3
Blood cultures should be obtained before initiating antibiotic therapy to confirm the pathogen and guide treatment, as recommended by the Infectious Diseases Society of America 1, 3
Drainage of any purulent collections or abscesses is essential for proper source control, as stated by the Infectious Diseases Society of America 4, 5

For Methicillin-Susceptible S. aureus (MSSA), first-line therapy includes β-lactam antibiotics such as oxacillin, nafcillin, or flucloxacillin, according to the Infectious Diseases Society of America 3
For Methicillin-Resistant S. aureus (MRSA), first-line therapy is intravenous vancomycin, as recommended by the Infectious Diseases Society of America 2, 4, 5

The minimum treatment duration is 14 days after catheter removal and resolution of symptoms, according to the American College of Physicians and the Infectious Diseases Society of America 1, 2, 3
Extended therapy (4-6 weeks) is required if complications such as persistent bacteremia, suppurative thrombophlebitis, osteomyelitis, or other metastatic infections are present, as stated by the American College of Physicians and the Infectious Diseases Society of America 1, 2, 3

Transesophageal echocardiography (TEE) should be performed if blood cultures remain positive 72 hours after catheter removal or if clinical signs of endocarditis are present, as recommended by the American Heart Association and the Infectious Diseases Society of America 2, 3
TEE should be performed 5-7 days after onset of bacteremia due to the high risk (25-32%) of endocarditis with S. aureus bacteremia, according to the American Heart Association and the Infectious Diseases Society of America 2

Maintaining good personal hygiene with regular handwashing is essential to prevent recurrence, as stated by the Centers for Disease Control and Prevention and the Infectious Diseases Society of America 4
Keeping any draining wounds covered with clean, dry bandages and avoiding sharing personal items that may contact infected skin can also help prevent recurrence, according to the Centers for Disease Control and Prevention and the Infectious Diseases Society of America 4