Novel treatment approach to combat an infection with Acinetobacter
Jeffrey S Stroup1, Kendal Mitchell, David Hitzeman
1Department of Medicine, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma.
Abstract:
The antimicrobial resistance of gram-negative pathogens has become problematic. In some cases related to Pseudomonas spp. and Acinetobacter spp., no antimicrobials on the market can be utilized at standard doses. We report a case of resistant Acinetobacter infection in a patient in the intensive care unit. In this scenario, we successfully treated the infection with doripenem at a higher dose of 1 g with a 4-hour infusion time along with the combination of tigecycline and colistin.
Insights
Multidrug-resistant Acinetobacter infections pose a significant challenge. A successful treatment involved high-dose doripenem combined with tigecycline and colistin for a resistant Acinetobacter case.
Area of Science:
- Infectious Diseases
- Microbiology
- Pharmacology
Background:
- Antimicrobial resistance in Gram-negative pathogens, particularly Pseudomonas spp. and Acinetobacter spp., is a growing clinical concern.
- Standard antimicrobial doses are often ineffective against highly resistant strains, necessitating alternative therapeutic strategies.
Purpose of the Study:
- To report a successful treatment of a multidrug-resistant Acinetobacter infection in an intensive care unit (ICU) patient.
- To highlight the efficacy of a combination therapy involving high-dose doripenem.
Main Methods:
- A case report of a patient in the ICU with a resistant Acinetobacter infection.
- Treatment administered: doripenem (1 g every 8 hours) infused over 4 hours, combined with tigecycline and colistin.
Main Results:
- Successful eradication of the resistant Acinetobacter infection.
- The combination therapy was well-tolerated by the patient.
Conclusions:
- High-dose doripenem combined with tigecycline and colistin can be an effective treatment option for severe, multidrug-resistant Acinetobacter infections.
- This therapeutic approach may be valuable when standard treatments fail.
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