The Use of Entropy to Assess Sleep Disordered Breathing in Chronic Respiratory Disease

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorUniversity College, London

About this trial

Research is being conducted into chronic respiratory diseases, including chronic obstructive pulmonary disease (COPD), asthma, interstitial lung disease, and bronchiectasis. The investigation specifically focuses on sleep-disordered breathing (SDB) in individuals with chronic respiratory disease. SDB encompasses a range of conditions, the most common of which is obstructive sleep apnoea. In obstructive sleep apnoea, periodic pauses in breathing (apnoea) lead to reduced blood oxygen levels. To detect these events, patients typically undergo sleep studies that involve monitoring oxygen saturation, heart rate, and respiratory patterns during sleep. When chronic respiratory disease and SDB coexist, breathing disturbances during sleep may be exacerbated.

To identify SDB, sleep studies are commonly used to assess oxygen levels, heart rate, and breathing patterns. The objective of this research is to identify differences between patients with chronic respiratory diseases who have SDB and those who do not. This will be achieved by analysing sleep study data using a novel analytical approach. The aim is to determine whether this method can yield more detailed insights into the underlying pathophysiology of these conditions.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

All adult patients (≥ 18years) with chronic respiratory disease with/without SDB.

patients who have had previously negative studies as a control group.

Subject is able to read, understand, and sign the informed consent form.

Willing to sleep with portable monitoring devices.

Disqualifiers

Patients who are under 18 years of age at the time of the index study.

Contraindications to the use of portable monitoring.

Inability to give informed consent to take part in the study.

Trial population

Patients will be recruited from the Royal Free Hospital in London over a period of 18 months. They will be approached during sleep or respiratory clinics attending and from an existing clinical database

Trial design

Design model

Other

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

Changes in respiratory signals entropy, oxygen saturation , and heart rate recorded using cardiorespiratory polygraphy during a 1-hour daytime and overnight sleep in healthy subjects and patients with chronic respiratory diseases with /without SDB.

High entropy value greater irregularity or complexity in the respiratory signal while low entropy value more regular, predictable, or uniform respiratory patterns.

Time frame
2 months

Secondary outcomes

Other outcomes

Sponsors and contacts

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University College, London

Lead sponsor

Royal Free Hospital NHS Foundation Trust

Collaborator