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A Randomized, Double-Blind, Placebo-Controlled Trial of Selective Digestive Decontamination Using Oral Gentamicin and Oral Polymyxin E for Eradication of Carbapenem-Resistant Klebsiella pneumoniae Carriage

Published online by Cambridge University Press:  02 January 2015

Lisa Saidel-Odes ,
Hana Polachek ,
Nehama Peled ,
Klaris Riesenberg ,
Francisc Schlaeffer ,
Yafa Trabelsi ,
Seada Eskira ,
Baha Yousef ,
Rozalia Smolykov  and
Shlomi Codish
...Show all authors
Lisa Saidel-Odes*
Affiliation:
Infectious Diseases Institute, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel Internal Medicine B, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Hana Polachek
Affiliation:
Hospital Pharmacy, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Nehama Peled
Affiliation:
Clinical Microbiology Laboratory, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Klaris Riesenberg
Affiliation:
Infectious Diseases Institute, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Francisc Schlaeffer
Affiliation:
Infectious Diseases Institute, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Yafa Trabelsi
Affiliation:
Internal Medicine B, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Seada Eskira
Affiliation:
Infection Control and Hospital Epidemiology Unit, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Baha Yousef
Affiliation:
Internal Medicine B, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Rozalia Smolykov
Affiliation:
Infectious Diseases Institute, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Shlomi Codish
Affiliation:
Hospital Administration, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Abraham Borer
Affiliation:
Infection Control and Hospital Epidemiology Unit, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
*
Infectious Diseases Institute, Soroka University Medical Center, P.O. Box 151, Beer-Sheva 84101, Israel ([email protected])
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Abstract

Objective.

To assess the effectiveness of selective digestive decontamination (SDD) for eradicating carbapenem-resistant Klebsiella pneumoniae (CRKP) oropharyngeal and gastrointestinal carriage.

Design.

A randomized, double-blind, placebo-controlled trial with 7 weeks of follow-up per patient.

Setting.

A 1,000-bed tertiary-care university hospital.

Patients.

Adults with CRKP-positive rectal swab cultures.

Methods.

Patients were blindly randomized (1:1) over a 20-month period. The SDD arm received oral gentamicin and polymyxin E gel (0.5 g 4 times per day) and oral solutions of gentamicin (80 mg 4 times per day) and polymyxin E (1 × 106 units 4 times per day for 7 days). The placebo arm received oral placebo gel 4 times per day and 2 placebo oral solutions 4 times per day for 7 days. Strict contact precautions were applied. Samples obtained from the throat, groin, and urine were also cultured.

Results.

Forty patients (mean age ± standard deviation, 71 ± 16 years; 65% male) were included. At screening, greater than or equal to 30% of oropharyngeal, greater than or equal to 60% of skin, and greater than or equal to 35% of urine cultures yielded CRKP isolates. All throat cultures became negative in the SDD arm after 3 days (P< .0001). The percentages of rectal cultures that were positive for CRKP were significandy reduced at 2 weeks. At that time, 16.1% of rectal cultures in the placebo arm and 61.1% in the SDD arm were negative (odds ratio, 0.13; 95% confidence interval, 0.02–0.74; P<.0016). A difference between the percentages in the 2 arms was still maintained at 6 weeks (33.3% vs 58.5%). Groin colonization prevalence did not change in either arm, and the prevalence of urine colonization increased in the placebo arm.

Conclusions.

This SDD regimen could be a suitable decolonization therapy for selected patients colonized with CRKP, such as transplant recipients or immunocompromised patients pending chemotherapy and patients who require major intestinal or oropharyngeal surgery. Moreover, in outbreaks caused by CRKP infections that are uncontrolled by routine infection control measures, SDD could provide additional infection containment.

Infect Control Hosp Epidemiol 2012;33(1):14-19

Type
Original Articles
Information
Infection Control & Hospital Epidemiology , Volume 33 , Issue 1 , January 2012 , pp. 14 - 19
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2012

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