Comparison of Breathing Events Detected by the SleepStyle 200 Auto Continuous Positive Airway Pressure (CPAP) Device to Attended Polysomnography

December 7, 2008 updated by: Fisher and Paykel Healthcare

Investigation of Methods to Detect Respiratory Irregularities in Obstructive Sleep Apnea (OSA)

Obstructive Sleep Apnoea (OSA) is a common sleep-breathing disorder affecting around 2-4% of the population and is characterised by loud snoring, periodic collapse of the upper airway particular to sleep, sleep fragmentation, and sometimes daytime sleepiness. Health consequences include impaired cognitive functioning, quality of life, mood, and increased cardiovascular disease risk. Epidemiological studies have demonstrated that increased morbidity and mortality in a dose response manner with increasing severity of sleep disordered breathing.

The standard treatment for OSA is nasal Continuous Positive Airway Pressure (CPAP), which consists of pressurized air applied to the nose via a mask. Generally a single, optimal pressure is prescribed for a patient based on a full night or partial night study during which the pressure is adjusted by a technician until all sleep disordered breathing (SDB) events are abolished. Despite therapy efficacy, compliance to CPAP therapy is sub-optimal.

Due to low compliance it has become common for healthcare providers to follow up subject therapy efficacy through reporting software inherent in many current CPAP devices. Healthcare providers can use this reported data to make appropriate treatment decisions. For this reason the data needs to be accurate. The SleepStyle™ 200 Auto Series CPAP humidifier is an auto adjusting CPAP which stores comprehensive compliance data. The aim of this study is to compare the reliability of the SleepStyle™ 200 Auto Series CPAP data to laboratory-based PSG in detecting sleep disordered breathing.

Hypothesis: The SleepStyle™ 200 Auto Series reporting features accurately detects indices of sleep disordered breathing.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • New Zealand
      • Auckland, New Zealand, 1010
        • Auckland Hospital, Adult Sleep & Ventilation Service, Auckland City Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Apnea Hypopnea Index (AHI) >15 from diagnostic night
  • ≥18 years of age

Exclusion Criteria:

  • Contraindicated for CPAP use

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
All subjects will be placed on continuous positive airway pressure (CPAP) therapy during a full night sleep study or polysomnography (PSG). The subjects will spend 2 hours on sub-therapeutic CPAP 4 cmH2O of pressure and the remainder on there therapeutic pressure. Values reported on the device will be compared to scored values from manual scoring of the sleep study.
Device: SleepStyle 200 Auto Series CPAP Humidifier
The device will record on internal software perceived sleep disordered breathing events. Events will also be scored manually on the polysomnography (PSG. Results will then be compared.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Apnea Hypopnea Index
Time Frame: At the end of the sleep study.
At the end of the sleep study.

Secondary Outcome Measures

Outcome Measure
Time Frame
Respiratory Disturbance Index (RDI)
Time Frame: At the end of the sleep study (PSG)
At the end of the sleep study (PSG)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Fisher and Paykel Healthcare

Investigators

  • Principal Investigator: Jessica R Hayward, Msc, Fisher & Paykel Healthcare

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2008

Primary Completion (Actual)

November 1, 2008

Study Completion (Actual)

November 1, 2008

Study Registration Dates

First Submitted

June 11, 2008

First Submitted That Met QC Criteria

June 12, 2008

First Posted (Estimate)

June 13, 2008

Study Record Updates

Last Update Posted (Estimate)

December 9, 2008

Last Update Submitted That Met QC Criteria

December 7, 2008

Last Verified

December 1, 2008

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FPHHC254a
  • AKY/03/07/166

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe