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Validation of a low cost manometer to evaluate upper airway oropharyngeal muscle strength

Validation of the OMES questionnaire compared to objective measurement of oropharyngeal muscle tone using the IOPI manometer, Sandway manometer, and digital spoon

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN49446863
Enrollment
60
Registered
2025-05-06
Start date
2025-05-05
Completion date
Unknown
Last updated
2026-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructive sleep apnea Ear, Nose and Throat

Interventions

Participants are enrolled after signing informed consent and screened to confirm eligibility (OSAHS diagnosis for cases
good sleep hygiene and absence of symptoms for controls). The study consists of a single evaluation visit taking place during the same week as the patient’s sleep study. During this visit, participant
data collection is completed in a single session.

Sponsors

Hospital Quirosalud Marbella
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Current inclusion criteria as of 07/07/2026: Cases: 1. Age between 18 and 75 years 2. Diagnosis of severe obstructive sleep apnea (AHI >30 events/hour) with no previous treatment experience 3. No prior treatment for OSAHS 4. Signed informed consent (IC) Controls: 1. Adequate sleep hygiene 2. No complaints of snoring 3. No complaints of daytime sleepiness 4. Epworth Sleepiness Scale 15) with no previous treatment experience 3. No prior treatment for OSAHS 4. Signed informed consent (IC) Controls: 1. Adequate sleep hygiene 2. No complaints of snoring 3. No complaints of daytime sleepiness 4. Epworth Sleepiness Scale < 7 points

Exclusion criteria

Exclusion criteria: 1. Cognitive or neurological deficits 2. Inability to complete questionnaires 3. Severe alcoholism 4. Presence of craniofacial malformations 5. Active neoplastic disease 6. History of orofacial muscle rehabilitation or prior OSA treatment (surgery, MAD, CPAP)

Design outcomes

Primary

MeasureTime frame
Orofacial muscle function measured using the OMES questionnaire at baseline (single visit)

Secondary

MeasureTime frame
1. Tongue and buccinator muscle strength measured using the IOPI® manometer at baseline (single visit). Measured in kilopascals (kps). 2. Tongue pressure measured using the Sandway® manometer at baseline (single visit). Measured in kilopascals (kps). 3. Tongue strength measured using a digital spoon at baseline (single visit). Measured in gr/cm². 4. Correlation between OMES score and values obtained by IOPI®, Sandway®, and digital spoon, analyzed at baseline (single visit) Added 07/07/2026: Exploratory outcomes: 1. Presence and classification of the Palatal-Tongue Clinical Sign (PTCS sign) assessed during standardized oral clinical examination at baseline and after 3 months 2. Maxillary intermolar distance (palatal width) measured in millimetres using a digital caliper (vernier caliper) during the baseline clinical assessment

Countries

Spain

Contacts

Public ContactCarlos O'Connor-Reina
carlos.oconnor@quironsalud.es+34 952780540

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Sep 19, 2026