Evaluation of An Optical Measurement Algorithm Combined With Patient and Provider Input to Reduce Mask Exchanges During Initial Positive Airway Pressure Therapy

NCT ID: NCT04688125

Last Updated: 2025-02-28

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 67 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2021-06-17
• Study Completion Date: 2024-12-31

Brief Summary

Continuous positive airway pressure and non-invasive ventilation are common treatment modalities for obstructive sleep apnea, central sleep apnea, and chronic alveolar hypoventilation from a variety of causes. Use of positive airway pressure (PAP) requires use of an interface, commonly referred to as a "mask." There are a range of mask options available, differing in configuration and sizing, including masks that fit into the nostrils (nasal pillows, NP), cover the nose (nasal masks, NM), cover both the nose and the mouth (oronasal masks, ONM), and rarely those that fit into the mouth (oral masks, OM) or over the entire face. The variety of masks, sizes, and materials result from the wide variety of facial configurations and patient preferences along with requirements to provide a good seal for varying pressure requirements. Failure to find a good match for a given patient may result in significant side effects, such as eye irritation owing to leak into the eyes, skin pressure sores, noise generation, and inadequate therapy when air leaks are extreme. Pressure sores, mask dislodgement, claustrophobic complaints, air leaks, and sore eyes occur in 20-50% of patients with OSA receiving PAP, and these effects negatively correlate with PAP compliance. Furthermore, several trials point to differences in compliance related to which types of masks are utilized. In a randomized cross-over trial, compliance was 1 hour more per night in patients using NM compared to those using ONM.1 In another, NPs were associated with fewer adverse effects and better subjective sleep quality than NMs.2 Therefore, failure to find an acceptable mask results in lower or non-compliance, and therefore treatment failure.

Currently, finding a right mask is performed either using crude templates, or via an iterative process, variably guided by experts in mask fitting. There are no standard certifications or algorithms to guide mask fitting. Given the above, it would be very desirable to find a reliable method to reduce the errors in mask fitting so that the costs, inconvenience, and suffering are all reduced.

Detailed Description

Patients will be recruited from Mayo Clinic sleep medicine practices who have completed testing and are initiating PAP therapy for obstructive sleep apnea (OSA), obesity hypoventilation syndrome (OHS), or central sleep apnea syndrome (CSA). Testing will be performed for clinical reasons on patients referred for evaluation for sleep disordered breathing. Testing is at the clinician's discretion and can be either polysomnography or home sleep apnea tests. Patients meeting inclusion and not meeting exclusion criteria will be offered the opportunity to participate in this study.

Participating patients will be randomized into one of two groups: the Active group or the Usual Care. A member of the study team register each patient to use the MaskFit AR™ mobile application to take facial measurements and generate mask recommendations. The patient will then be provided with a list recommendations and will be invited to use this list to select their mask from their durable medical equipment company. This is the differentiating part of the study, with the recommendation for a mask being decided by the patient's group assignment. The recommendation for masks may or may not be different from the one written on initial prescription. After the initial visit at the study center, all participants will also be contacted for a follow-up call and will also be asked to complete brief online surveys, one after 40 days and one after 90 days following the first visit.

Conditions

Sleep Apnea, Obstructive; Obesity Hypoventilation Syndrome (OHS); Sleep Apnea Syndromes

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: RETROSPECTIVE

Eligibility Criteria

Inclusion Criteria

• Age ≥18 years old
• Sleep testing shows an apnea-hypopnea index or respiratory event index ≥5
• Patient is PAP naïve or no PAP use within the last 10 years
• Patient's diagnosis is obstructive sleep apnea, obesity hypoventilation syndrome, or central sleep apnea syndrome
• Prescribed therapy is CPAP, A-PAP, or BPAP in a spontaneous modality
• Patient is able to provide consent
• Patient is English speaking (limited to English for device)

Exclusion Criteria

• Prescribed therapy is BPAP ST or ASV
• Patient is not able to provide consent
• Patient is not able to speak or read English
• Nasal or facial trauma or surgery that leaves atypical facial features

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Mayo Clinic

OTHER

Sponsor Role: lead

Responsible Party

Timothy Morgenthaler

Consultant

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Timothy Morgenthaler, MD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

Mayo Clinic in Rochester

Rochester, Minnesota, United States

Countries

United States

References

Dibra MN, Berry RB, Wagner MH. Treatment of Obstructive Sleep Apnea: Choosing the Best Interface. Sleep Med Clin. 2020 Jun;15(2):219-225. doi: 10.1016/j.jsmc.2020.02.008.

Reference Type: BACKGROUND

PMID: 32386696 (View on PubMed)

Avellan-Hietanen H, Brander P, Bachour A. Symptoms During CPAP Therapy Are the Major Reason for Contacting the Sleep Unit Between Two Routine Contacts. J Clin Sleep Med. 2019 Jan 15;15(1):47-53. doi: 10.5664/jcsm.7568.

Reference Type: BACKGROUND

PMID: 30621836 (View on PubMed)

Related Links

https://www.mayo.edu/research/clinical-trials

Mayo Clinic Clinical Trials

Other Identifiers

20-006272

Identifier Type: -

Identifier Source: org_study_id