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Published on: August 30, 2018
Is fixed short-course antimicrobial therapy justified for patients who are critically ill with intra-abdominal
Yoshio Takesue1, Motoi Uchino2, Hiroki Ikeuchi2
1Department of Infection Prevention and Control, Hyogo College of Medicine.
Abstract:
A long-course antibiotic therapy increases the risk of antibiotic resistance. A 7- to 14-day duration of therapy has been traditionally adopted in patients with intra-abdominal infections (IAIs). Prophylactic antibiotic use is warranted in uncomplicated IAIs, in which the infection involves a single organ, and the source of the infection is completely eradicated by a surgical procedure. A large, randomized clinical trial of the treatment of complicated IAIs recently demonstrated that a fixed 4-day course of antibiotic therapy was as effective as a long-course therapy in patients who underwent adequate source control. Considering the poor prognosis and lack of clear evidence available for shortening the duration of antibiotic therapy in patients who are critically ill or those with ongoing signs of sepsis, the duration of therapy for complicated IAIs should be individually determined according to the clinical course. Limiting therapy to no more than 7 days seems to be warranted in patients who are critically ill with a good clinical response.
Insights
Shortening antibiotic therapy for intra-abdominal infections (IAIs) to 4 days is effective and reduces resistance risk. For critically ill patients, therapy duration should be individualized based on clinical response, potentially limiting to 7 days.
Area of Science:
- Infectious Diseases
- Clinical Microbiology
- Surgical Infections
Background:
- Long-course antibiotic therapy (7-14 days) is traditional for intra-abdominal infections (IAIs) but increases antibiotic resistance.
- Prophylactic antibiotics are indicated for uncomplicated IAIs with complete source eradication.
- Evidence for shortening antibiotic duration in complicated IAIs is evolving.
Purpose of the Study:
- To evaluate the efficacy of shorter antibiotic courses in intra-abdominal infections.
- To inform optimal antibiotic duration strategies for complicated IAIs.
- To assess the impact of antibiotic duration on resistance development.
Main Methods:
- Analysis of a large, randomized clinical trial comparing fixed 4-day antibiotic therapy with long-course therapy in complicated IAIs.
- Inclusion of patients with adequate source control.
- Consideration of clinical response in critically ill patients.
Main Results:
- A fixed 4-day antibiotic course was as effective as long-course therapy in patients with complicated IAIs and adequate source control.
- Shorter durations may reduce the risk of antibiotic resistance.
- Individualized therapy is crucial for critically ill patients or those with ongoing sepsis.
Conclusions:
- A 4-day antibiotic regimen is effective for select patients with complicated intra-abdominal infections.
- Antibiotic stewardship principles support shorter treatment durations when clinically appropriate.
- Individualized clinical assessment is paramount for determining optimal antibiotic therapy duration in complex cases.
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