Bacterial Infections
Conditions
Keywords
Study of commensal flora, Fluoroquinolones
Brief summary
Observational study of the effects of antibiotics on commensal flora. Realization of stool samples and nasal swabs before and after antibiotic therapy.
Detailed description
The emergence of resistance to fluoroquinolone (FQ) and is a major problem worldwide. The commensal flora is the main reservoir for antibiotic resistance. Understanding the factors (environmental, patient-related, dosis-related, drug-related…) involved in the emergence of resistance to fluoroquinolones in the commensal flora of patients treated with a FQ, may help prevent it and preserve the efficiency of these important antibiotics. Samples of digestive flora will be collected from hospitalized patients before receiving a FQ or Ceftriaxone, at the end of the treatment and 3 month after the end of treatment. Clinical data will be collected.
Interventions
None listed
Sponsors
Assistance Publique - Hôpitaux de Paris
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
for the patients treated with antibiotics * Adult patient hospitalized in a participating ward of the hospital for an expected duration of more than 24 hours. * Treatment by ceftriaxone and / or a fluoroquinolone started by the attending physicians during hospitalization. * No hospitalization or stay in nursing home in the previous three months. * No use of antibiotics in the last 3 months * Not receiving other antibiotics than ceftriaxone or FQ * Informed consent Inclusion criteria for the patients in the reference group * Adult patient hospitalized in a participating ward of the hospital for an expected duration of more than 24 hours. * Not receiving any antibiotic and not expected to receive any during hospitalization * No hospitalization or stay in nursing home in the previous three months. * No use of antibiotics in the last 3 months * Informed consent
Exclusion criteria
* Pregnant or nursing women * Patient who underwent colectomy or suffering from chronic intestinal disease (inflammatory intestinal disease or short bowel syndrome) * Patient who used a bowel preparation solution for colonoscopy during hospitalization or in the previous week. * Protected adult patient (deputyship or guardianship)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Describe the changes in the composition of the gut microbial flora in relation to the initial flora (T0) in patients receiving antibiotics, by date of sampling, treatment received, dose, duration of therapy, ward, and duration of hospital stay. | 1 year | The primary endpoint is the change in composition of the microbial flora in relation to the initial flora (T0), at the exit of the hospital or at the end of treatment if occurs while the patient is still hospitalized (bis T0, T1, T1 bis), 3 months after the end of treatment (T2) and one year after the end of treatment (T3). |
Secondary
| Measure | Time frame |
|---|---|
| A secondary endpoint is to describe the changes in the gut microbiota of hospitalized patients not receiving antibiotics. | 1 year |
Countries
France
Outcome results
None listed