Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2015 May 21;372(21):1996-2005.
doi: 10.1056/NEJMoa1411162.

Trial of short-course antimicrobial therapy for intraabdominal infection

Collaborators, Affiliations
Randomized Controlled Trial

Trial of short-course antimicrobial therapy for intraabdominal infection

Robert G Sawyer et al. N Engl J Med. .

Erratum in

Abstract

Background: The successful treatment of intraabdominal infection requires a combination of anatomical source control and antibiotics. The appropriate duration of antimicrobial therapy remains unclear.

Methods: We randomly assigned 518 patients with complicated intraabdominal infection and adequate source control to receive antibiotics until 2 days after the resolution of fever, leukocytosis, and ileus, with a maximum of 10 days of therapy (control group), or to receive a fixed course of antibiotics (experimental group) for 4±1 calendar days. The primary outcome was a composite of surgical-site infection, recurrent intraabdominal infection, or death within 30 days after the index source-control procedure, according to treatment group. Secondary outcomes included the duration of therapy and rates of subsequent infections.

Results: Surgical-site infection, recurrent intraabdominal infection, or death occurred in 56 of 257 patients in the experimental group (21.8%), as compared with 58 of 260 patients in the control group (22.3%) (absolute difference, -0.5 percentage point; 95% confidence interval [CI], -7.0 to 8.0; P=0.92). The median duration of antibiotic therapy was 4.0 days (interquartile range, 4.0 to 5.0) in the experimental group, as compared with 8.0 days (interquartile range, 5.0 to 10.0) in the control group (absolute difference, -4.0 days; 95% CI, -4.7 to -3.3; P<0.001). No significant between-group differences were found in the individual rates of the components of the primary outcome or in other secondary outcomes.

Conclusions: In patients with intraabdominal infections who had undergone an adequate source-control procedure, the outcomes after fixed-duration antibiotic therapy (approximately 4 days) were similar to those after a longer course of antibiotics (approximately 8 days) that extended until after the resolution of physiological abnormalities. (Funded by the National Institutes of Health; STOP-IT ClinicalTrials.gov number, NCT00657566.).

PubMed Disclaimer

Conflict of interest statement

No other potential conflict of interest relevant to this article was reported.

Figures

Figure 1
Figure 1. Enrollment, Randomization, and Treatment
All enrolled patients had complicated intraabdominal infection and adequate source control. The control group consisted of patients who received antibiotics until 2 days after resolution of fever, leukocytosis, and ileus, with a maximum of 10 days of therapy, and the experimental group received a fixed course of antibiotics for 4±1 calendar days.
Figure 2
Figure 2. Kaplan–Meier Time-to-Event Curves for the Composite Primary Outcome, According to Treatment Group
The composite primary outcome was surgical-site infection, recurrent intraabdominal infection, or death.
Figure 3
Figure 3. Primary Composite Outcome in Key Subgroups
The median proportions of patients with the composite outcome are shown. I bars indicate the interquartile range.

Comment in

References

    1. DeFrances CJ, Cullen KA, Kozak LJ. National Hospital Discharge Survey: 2005 annual summary with detailed diagnosis and procedure data. Vital Health Stat 13. 2007;165:1–209. - PubMed
    1. Sartelli M, Catena F, Ansaloni L, et al. Complicated intra-abdominal infections worldwide: the definitive data of the CIAOW Study. World J Emerg Surg. 2014;9:37. - PMC - PubMed
    1. Inui T, Haridas M, Claridge JA, Malangoni MA. Mortality for intra-abdominal infection is associated with intrinsic risk factors rather than the source of infection. Surgery. 2009;146:654–661. - PubMed
    1. Riccio LM, Popovsky KA, Hranjec T, et al. Association of excessive duration of antibiotic therapy for intra-abdominal infection with subsequent extra-abdominal infection and death: a study of 2,552 consecutive infections. Surg Infect (Larchmt) 2014;15:417–424. - PMC - PubMed
    1. Christou NV, Barie PS, Dellinger EP, Waymack JP, Stone HH. Surgical Infection Society intra-abdominal infection study: prospective evaluation of management techniques and outcome. Arch Surg. 1993;128:193–198. - PubMed

Publication types

MeSH terms

Substances

Associated data