Bacterial Microbiota In The Tonsils Of Children

Bacterial Microbiota In The Tonsils Of Children Undergoing Adenotonsillectomy And Normal Controls

We, the investigators, propose to look at the bacteria on and in tonsils using gene microarrays. We expect to find previously reported bacteria but also the possibility of previously undetected organisms. We think that the bacterial pathogens present on the tonsillar surface are different from the tonsil core. And we also think that the bacteria of the tonsil surface will differ between patients undergoing adenotonsillectomy and normal controls with no adenotonsillar problems.

Study Overview

• Status: Completed
• Conditions: Adenotonsillitis

• Study Type: Observational
• Enrollment (Actual): 24

Contacts and Locations

Study Locations

• United States
  • Illinois
    • Chicago, Illinois, United States, 60637
      • University of Chicago

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 2 years to 12 years (Child)
• Accepts Healthy Volunteers: No

• Sampling Method: Probability Sample

Study Population

Children undergoing adenotonsillectomies at the Comer Children's Hospital

Description

Inclusion Criteria:

Inclusion criteria for subjects undergoing surgery:

• Age 2-12 yrs
• Both males and females
• Undergoing adenotonsillectomy

Additional criteria for subjects in the recurrent infection group:

• Sleep questionnaire score <5
• Designated by surgeon as having recurrent adenotonsillitis as reason for surgery

Additional criteria for subjects in the airway obstruction group:

• Sleep questionnaire score >5
• Presence of positive polysomnogram desired but not necessary
• Designated by surgeon as having airway obstruction or sleep apnea as reason for surgery

Inclusion criteria for control subjects:

• Age 2-12 yrs
• Both males and females
• No history of adenotonsillar problems
• Sleep questionnaire score < 5

Exclusion Criteria:

Exclusion Criteria for both groups:

• Antibiotic intake in the past 10 days
• Other major medical problems (immune deficiency, cystic fibrosis, malignancy) In the surgery group: designated by surgeon as having both recurrent adenotonsillitis and airway obstruction as reason for surgery Menstruating females

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Control
• Time Perspectives: Prospective

Number of groups / cohorts

3

Cohorts and Interventions

Group / Cohort
Control; No tonsilar or adenoid problems
Adenotonsillectomy (recurrent); Recurrent adenotonsillitis
Adenotonsillectomy (obstruction); Upper airway obstruction

Collaborators and Investigators

• Sponsor: University of Chicago
• Investigators: Principal Investigator: Fuad M Baroody, MD, University of Chicago

Study record dates

Study Major Dates

• Study Start (Actual): December 1, 2010
• Primary Completion (Actual): February 18, 2017
• Study Completion (Actual): February 18, 2017

Study Registration Dates

• First Submitted: January 3, 2011
• First Submitted That Met QC Criteria: January 4, 2011
• First Posted (Estimate): January 5, 2011

Study Record Updates

• Last Update Posted (Actual): April 26, 2023
• Last Update Submitted That Met QC Criteria: April 24, 2023
• Last Verified: April 1, 2023

More Information

Terms related to this study

• Other Study ID Numbers: 10-636-A