Speech PerceptionNCT07505953
The Effects of Operating Room COVID-19 Personal Protective Equipment on Speech Perception and Listening Effort
An observational study of Speech Perception and Communication Barriers, run by Ondokuz Mayıs University at 1 site in Turkey (Türkiye).
Trial summary
BACKGROUND: The aim of this study is to evaluate the effects of the combination surgical mask+N95 mask+face shield in operating room on speech perception and listening effort during the COVID-19 process. METHODS: The experimental part of the study was carried out in three phases. Read more about this study
- Who is it for?
- Ages Up to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Speech Perception, Communication Barriers, Operating Rooms
- How many people
- 219 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Oct 2021to 30 Dec 2021
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Up to 55 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: Operating room nurses and technicians
Who may be able to join
- Operating room nurses and technicians whose medical history was not a vestibular disease and ear surgery, who were shown to have normal hearing (NH) by hearing tests.
Who cannot join
- presence of hearing and vestibular loss
Trial locations and contacts
1 site in 1 country.
About this study
BACKGROUND: The aim of this study is to evaluate the effects of the combination surgical mask+N95 mask+face shield in operating room on speech perception and listening effort during the COVID-19 process.
METHODS: The experimental part of the study was carried out in three phases. Thirty-five participants who were found to have normal hearing in Phase I were included in Phase II and Phase III. Speech stimuli were given with a surgical mask in phase II, and a combination of surgical mask+N95 mask+face shield in phase III. The tests performed in free field, in the presence of 60 dB wideband background noise. In the descriptive part of the study, the listening effort of 184 operating room professionals was examined with a 17-item questionnaire.
- Keywords
- COVID-19, Listening effort, Speech perception, Personal protective equipment
- Medical subject headings
- COVID-19
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in speech perception score under operating room PPE conditions
Speech perception was assessed using a standardized speech perception test while participants were wearing operating room personal protective equipment.
Measured: November 2021
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Apr 2026
- Study start1 Oct 2021
- Primary completion30 Nov 2021
- Study completion30 Dec 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Speech PerceptionStudies of the same condition, open and under way.
- More trials run by Ondokuz Mayıs UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 219 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ondokuz Mayıs University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Handan Turan Dizdar, Ondokuz Mayıs University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07505953
- Sponsor's protocol ID
- Thesis Kübra
- Status last verified
- Mar 2026
- First submitted
- 9 Feb 2026
- Last updated
- 1 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 1 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effects of Operating Room COVID-19 Personal Protective Equipment on Speech Perception and Listening Effort
- ClinicalTrials.gov ID
- NCT07505953
- Acronym / sponsor ID
- Thesis Kübra
- Keywords
- COVID-19, Listening effort, Speech perception, Personal protective equipment
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 219 participants (actual)
- Lead sponsor
- Ondokuz Mayıs UniversityUniversity, hospital or other
- Study start
- 1 Oct 2021 (actual)
- Primary completion
- 30 Nov 2021 (actual)
- Study completion
- 30 Dec 2021 (actual)
- First posted
- 1 Apr 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
BACKGROUND: The aim of this study is to evaluate the effects of the combination surgical mask+N95 mask+face shield in operating room on speech perception and listening effort during the COVID-19 process.
METHODS: The experimental part of the study was carried out in three phases. Thirty-five participants who were found to have normal hearing in Phase I were included in Phase II and Phase III. Speech stimuli were given with a surgical mask in phase II, and a combination of surgical mask+N95 mask+face shield in phase III. The tests performed in free field, in the presence of 60 dB wideband background noise. In the descriptive part of the study, the listening effort of 184 operating room professionals was examined with a 17-item questionnaire.
Study design
- Observational model
- Other
- Time perspective
- Prospective
Who may qualify
- Ages
- Up to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Operating room nurses and technicians
Key inclusion criteria (1 listed)
- Operating room nurses and technicians whose medical history was not a vestibular disease and ear surgery, who were shown to have normal hearing (NH) by hearing tests.
Key exclusion criteria (1 listed)
- presence of hearing and vestibular loss
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Change in speech perception score under operating room PPE conditions
Time frame: November 2021
Speech perception was assessed using a standardized speech perception test while participants were wearing operating room personal protective equipment.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Apr 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Speech Perception and Communication Barriers, run by Ondokuz Mayıs University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in speech perception score under operating room PPE conditions (time frame: November 2021). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Apr 2026; AzTrials last refreshed its copy on 7 Nov 2026.