Tracheal Mechanics During Bronchoscopy

This study has been completed.
Information provided by:
Beth Israel Deaconess Medical Center Identifier:
First received: September 26, 2007
Last updated: February 3, 2010
Last verified: February 2010

The main purpose of this study is use a new type of measurement to help decide what kind of therapy would help people with a collapsing windpipe or tracheomalacia.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Tracheal Mechanics During Bronchoscopy

Resource links provided by NLM:

Further study details as provided by Beth Israel Deaconess Medical Center:

Estimated Enrollment: 150
Study Start Date: March 1999
Study Completion Date: June 2009
Patients with cough and/or shortness of breath who may have windpipe collapse.
Healthy adults
Subjects without symptoms for comparison.
Patients with cough and/or shortness of breath who may have windpipe collapse.

Detailed Description:

This study is to obtain new information about the pressures required to collapse the trachea in patients with and without obstructive pulmonary disease and to describe the relationship between pressures and airflow obstruction. This information will provide normative data not currently available and would establish whether tracheal collapse is due to tracheomalacia. The data may lead to better ways of predicting if a patient would benefit from procedures to prevent tracheal collapse.


Ages Eligible for Study:   21 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Healthy control subjects recruited from subjects volunteering for CT or bronchoscopic studies and patients referred for evaluation of possible tracheomalacia.


Inclusion Criteria:

  • Suspicion of tracheal collapse undergoing bronchoscopy
  • Healthy control subject undergoing bronchoscopy for another purpose.

Exclusion Criteria:

  • Esophageal pathology
  • Tracheostomy
  • inability to follow commands
  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: NCT00536315

United States, Massachusetts
Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States, 02215
Sponsors and Collaborators
Beth Israel Deaconess Medical Center
Principal Investigator: Stephen H Loring, M.D. Beth Israel Deaconess Medical Center
  More Information

Responsible Party: Stephen H. Loring, BIDMC Identifier: NCT00536315     History of Changes
Other Study ID Numbers: 2001-P-001418
Study First Received: September 26, 2007
Last Updated: February 3, 2010
Health Authority: United States: Institutional Review Board

Keywords provided by Beth Israel Deaconess Medical Center:

Additional relevant MeSH terms:
Bronchial Diseases
Cartilage Diseases
Congenital Abnormalities
Connective Tissue Diseases
Musculoskeletal Abnormalities
Musculoskeletal Diseases
Respiratory Tract Diseases
Tracheal Diseases processed this record on October 07, 2015