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Otoacoustic Emissions in Different Blood Types

The Association of Blood Type Differences and Signal-Noise Ratio in TEOAE and DPAOE in Individuals With Normal Hearing

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06326866
Enrollment
70
Registered
2024-03-22
Start date
2024-02-07
Completion date
2024-03-18
Last updated
2024-03-26

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

Conditions

Hearing Loss, Cochlear

Keywords

otoacoustic emissions, blood type

Brief summary

The objective of this study is to examine whether ABO and Rhesus (Rh) blood group systems have an association with distortion product otoacoustic emission (DPOAE) and transient otoacoustic emission (TEOAE) amplitudes with the hypothesis of blood groups may affect hearing thresholds.

Detailed description

Many factors have a significant impact on otoacoustic emission (OAE) measurement and quality of analysis. Race, age and gender are among the non-pathological factors. To date there is clear data to demonstrate the association of blood types with OAEs. The aim of our research is to investigate the relation of different blood groups (ABO) and Rh factors on transient evoked OAE and distortion product OAE amplitudes and inner ear potentials, differences between ears and to contribute to the limited literature on cochlear hearing loss susceptibility and blood groups with the hypothesis that blood groups may be associated with hearing thresholds.

Interventions

DIAGNOSTIC_TESTOtoacoustic emissions (non-invasive)

There is no invasive intervention in the study. Individuals with predetermined blood types will be included in the study.

Sponsors

Istanbul University - Cerrahpasa
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 26 Years
Healthy volunteers
Yes

Inclusion criteria

* not having hearing loss * having a blood group card obtained from health institutions

Exclusion criteria

* not meeting inclusion criteria

Design outcomes

Primary

MeasureTime frameDescription
Signal to noise ratios1 monthSNRs obtained for different frequencies in OAE In TEOAE, 1, 1.4, 2, 2.8, 4 kHz, in DPOAE 1, 1.4, 2, 2.8, 4, 6 kHz

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026