Normal Paranasal Sinuses Microflora Study

The recruitment status of this study is unknown because the information has not been verified recently.
Verified December 2012 by Sheba Medical Center.
Recruitment status was  Recruiting
Information provided by (Responsible Party):
Dr. Arkadi Yakirevitch, Sheba Medical Center Identifier:
First received: January 23, 2007
Last updated: December 17, 2012
Last verified: December 2012

The purpose of this study is to check if bacterial and fungal flora exists in healthy paranasal sinuses, and whether it is identical to the flora of nasal cavity.

We plan to harvest tiny examples of maxillary sinus and nasal mucosa for tissue cultures during the orthognathic procedures involving maxillary remodeling.

Paranasal Sinuses

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective

Further study details as provided by Sheba Medical Center:

Primary Outcome Measures:
  • presence of bacteria in normal paranasal sinuses [ Time Frame: at time of orthgnatic surgery ] [ Designated as safety issue: No ]

Estimated Enrollment: 30
Study Start Date: February 2007
Estimated Primary Completion Date: August 2013 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population

Healthy adults undergoing orthognatic procedure


Inclusion Criteria:

  • Necessity of maxillary sinus opening during orthognathic surgery
  • Negative history of chronic rhinitis or chronic sinusitis
  • Informed concent

Exclusion Criteria:

  • Recent(1 month or less before the operation) event of acute sinusitis or other disease leading to nasal discharge
  • Recent(1 month or less before the operation) antibacterial or antifungal parenteral treatment
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00426569

Contact: Arkadi Yakirevitch, MD 972547808078

Sheba Medical Center Recruiting
Tel Hashomer, Israel, 52621
Contact: Lev Bedrin, MD, PhD    972526667254      
Principal Investigator: Arkadi Yakirevitch, MD         
Sponsors and Collaborators
Sheba Medical Center
Principal Investigator: Arkadi Yakirevitch, M.D. Department of Otorhinolaryngology-Head and Neck Surgery, Sheba Medical Center, Israel
  More Information

No publications provided

Responsible Party: Dr. Arkadi Yakirevitch, Arkadi Yakirevitch, MD, Sheba Medical Center Identifier: NCT00426569     History of Changes
Other Study ID Numbers: SHEBA-07-4534-AY-CTIL
Study First Received: January 23, 2007
Last Updated: December 17, 2012
Health Authority: Israel: Israeli Health Ministry Pharmaceutical Administration processed this record on April 23, 2015