New York, New York 10016

  • Disordered Breathing


The diagnosis and treatment of sleep disordered breathing have come to the forefront of clinical medicine following recognition of the high prevalence and associated morbidity of sleep apnea. The effects on quality of life as well as societal costs have been well documented. The NYU Sleep Research Laboratory has spent the last several years working on the problem of improving the diagnosis of mild sleep disordered breathing which manifests as the upper airway resistance syndrome. Our approach has been to develop a non-invasive technique to detect increased upper airway resistance directly from analysis of the airflow signal. A characteristic intermittent change of the inspiratory flow contour, which is indicative of the occurrence of flow limitation, correlates well with increased airway resistance. Currently all respiratory events are identified manually and totaled. This is time consuming and subject to variability. The objective of the present project is to improve upon the manual approach by implementing an artificially intelligent system for the identification and quantification of sleep disordered breathing based solely on non-invasive cardiopulmonary signals collected during a routine sleep study. The utility of other reported indices of sleep disordered breathing obtained during a sleep study will be evaluated. Successful development of an automated system that can identify and classify upper airway resistance events will simplify, standardize and improve the diagnosis of sleep disordered breathing, and greatly facilitate research and clinical work in this area. Using a physiological based determination of disease should allow better assessment of treatment responses in mild disease.


Inclusion Criteria: - Patients with sleep disordered breathing

Study is Available At:

Original ID:




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Study Acronym:

Brief Title:

Incorporating Flow Limitation Into the Diagnosis and Quantification of Sleep Disordered Breathing

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Minimum Age:

18 Years

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Quick Facts

Healthy Volunteers
Oversight Has DMC
Study Is FDA Regulated
Study Is Section 801
Has Expanded Access

Study Source:

National Center for Research Resources (NCRR)

Oversight Authority:

United States: Federal Government

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Study Design:

Primary Purpose: Diagnostic

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Study Dates

Verification Date:January 2004
Last Changed Date:June 23, 2005
First Received Date:February 12, 2000

Study Outcomes

There are no available Study Outcomes

Study Interventions

Intervention Type:Procedure
Name:Non-invasive technique to diagnose and quantitate

Study Arms

There are no available Study Arms

Study Agencies

Agency Class:NIH
Agency Type:Lead Sponsor
Agency Name:National Center for Research Resources (NCRR)

Sample and Retention Information

There are no available Sample and Retention Information

Study References

There are no available Study References

Data Source:

Date Processed: August 01, 2021

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