Clinical Evaluation of an Apnea Index for Diagnosis and Screening of Obstructive Sleep Apnea (OSA)

NCT ID: NCT01010438

Last Updated: 2016-11-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

59 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-10-31

Study Completion Date

2011-12-31

Brief Summary

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The study is designed to compare the apnea event recognition capability of the Capnostream 20 with investigational software to polysomnograph recordings scored by a trained analyst. The study will compare the apnea index score (AI) calculated by the Capnostream 20 algorithm based on capnography to that calculated by a trained analyst evaluating polysomnograph recordings.

To this aim, subjects will be connected to EMBLA N7000 Polysomnograph, and to the Capnostream 20, in order to monitor CO2 and SpO2 during routine overnight sleep studies.

The Capnostream, using both its USB Data Port and Analog output port will simultaneously provide the monitored data both to a USB flash memory device and Polysomnograph for storage for future analysis.

The data collected by the Polysomnograph including the Capnostream data will be analyzed by a trained expert for evaluation of apnea events obtained from both sources.

In parallel, the Capnostream data as collected with the USB flash memory, will be downloaded onto a PC, and using the Oridion software algorithm designed for evaluating the data (to be implemented in the monitor when validated), the Apnea Index and Oxygen Desaturation Index will be calculated. The results of the Apnea Index scores calculated from the Polysomnograph and from the DUT will be compared.

Based on the results, the study will then evaluate the ability of the Capnograph/Pulse-Oximeter as a tool for screening and assisting in the diagnosis of patients with obstructive sleep-apnea in the hospital environment, where it is being used as a ventilation monitor based on the demonstration of a high correlation with the gold standard in the sleep lab.

Detailed Description

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The clinical investigation will be conducted until enrollment of at least 30 adult and 30 Pediatric patients of both sexes with complete data sets are collected from three different sleep lab sites per the FDA guidance requirements. The enrollment time will last up to six (6) months. The overall number of enrolled patients (i.e. with complete/incomplete data) will not exceed 80 patients.

Conditions

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Obstructive Sleep Apnea

Keywords

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sleep studies sleep apnea OSA Referred for sleep studies by a medical professional

Study Design

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Study Time Perspective

RETROSPECTIVE

Study Groups

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Adults

Adult patients referred for sleep studies, including both patients with suspected OSA and patients that have been invited to a sleep lab for reasons not related to OSA such as insomnia, para-insomnia and similar.

No interventions assigned to this group

Children (1-17)

Pediatric patients referred for sleep studies, including both patients with suspected OSA and patients that have been invited to a sleep lab for reasons not related to OSA such as insomnia, para-insomnia and similar.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* All Adults \> 18 years old and able to understand and give consent per the IRB or a child above one years old consented by a parent or legal guardians.
* Patients consented or for whom legal guardians consented for the participation of this trial.
* Patient recommended for a Sleep assessment by medical staff.

Exclusion Criteria

* Patients who in the opinion of the investigator should not participate.
Minimum Eligible Age

1 Year

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Oridion

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Giora Pillar, MD

Role: PRINCIPAL_INVESTIGATOR

Deputy Director, Department of Pediatrics, Director, Pediatric Sleep Disorders Unit, Rambam Health Care Campus

Locations

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Hillel Yaffe Sleep Lab Center

Hadera, , Israel

Site Status

Prof. Giora Pillar M.D., Deputy Director, Department of Pediatrics, Director, Pediatric Sleep Disorders Unit

Haifa, , Israel

Site Status

Hadassah Sleep Lab Center

Jerusalem, , Israel

Site Status

Countries

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Israel

References

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Dangers of Postoperative Opioids - APSF Workshop and White Paper Address Prevention of Postoperative Respiratory Complications /Matthew B. Weinger, MD/APSF Newsletter Volume 21, No. 4, 61-88Winter 2006-2007

Reference Type BACKGROUND

The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specification/ Con Iber, MD/ AASM - 2007

Reference Type BACKGROUND

Ng SS, Chan TO, To KW, Ngai J, Tung A, Ko FW, Hui DS. Validation of a portable recording device (ApneaLink) for identifying patients with suspected obstructive sleep apnoea syndrome. Intern Med J. 2009 Nov;39(11):757-62. doi: 10.1111/j.1445-5994.2008.01827.x. Epub 2008 Nov 3.

Reference Type BACKGROUND
PMID: 19220528 (View on PubMed)

de Almeida FR, Ayas NT, Otsuka R, Ueda H, Hamilton P, Ryan FC, Lowe AA. Nasal pressure recordings to detect obstructive sleep apnea. Sleep Breath. 2006 Jun;10(2):62-9. doi: 10.1007/s11325-005-0042-x.

Reference Type BACKGROUND
PMID: 16502297 (View on PubMed)

Other Identifiers

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D006567

Identifier Type: -

Identifier Source: org_study_id