Evidence map›Paper›PMID 27496538›Full record

ArticleHearing research2016

Controlled exploration of the effects of conductive hearing loss on wideband acoustic immittance in human cadaveric preparations.

Gabrielle R Merchant, Saumil N Merchant, John J Rosowski, Hideko Heidi Nakajima

Open access · greenAbstract read
In one paragraph

Article in Hearing research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.2field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. Coupled Finite Element Model of the Middle and Inner Ear as Virtual Test Environment for Stapes Surgery.International journal for numerical methods in biomedical engineering · 2025
    Article
  5. Article
  6. Article
  7. Contemporary Mechanics of Conductive Hearing Loss.Operative techniques in otolaryngology--head and neck surgery · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Biomechanics of Third Window Syndrome.Frontiers in neurology · 2020
    Review
  12. Article
  13. Article
  14. Intracochlear Sound Pressure Measurements in Normal Human Temporal Bones During Bone Conduction Stimulation.Journal of the Association for Research in Otolaryngology : JARO · 2018
    Article
  15. Article
  16. Compensating for ear-canal acoustics when measuring otoacoustic emissions.The Journal of the Acoustical Society of America · 2017
    Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Gabrielle R MerchantHarvard-MIT Division of Health Sciences and Technology, Speech and Hearing Bioscience and Technology, Cambridge, MA, United States; Eaton-Peabody Lab, Massachusetts Eye and Ear, Boston, MA, United States. Electronic address: gmerchant@umass.edu.
Saumil N MerchantEaton-Peabody Lab, Massachusetts Eye and Ear, Boston, MA, United States; Department of Otolaryngology, Harvard Medical School, Boston, MA, United States.
John J RosowskiHarvard-MIT Division of Health Sciences and Technology, Speech and Hearing Bioscience and Technology, Cambridge, MA, United States; Eaton-Peabody Lab, Massachusetts Eye and Ear, Boston, MA, United States; Department of Otolaryngology, Harvard Medical School, Boston, MA, United States.
Hideko Heidi NakajimaHarvard-MIT Division of Health Sciences and Technology, Speech and Hearing Bioscience and Technology, Cambridge, MA, United States; Eaton-Peabody Lab, Massachusetts Eye and Ear, Boston, MA, United States; Department of Otolaryngology, Harvard Medical School, Boston, MA, United States.
Massachusetts Eye and Ear Infirmary · US

Funding

Middle-ear Mechanics in Normal and Pathological EarsR01DC004798 · NIDCD · MASSACHUSETTS EYE AND EAR INFIRMARY · PI NAKAJIMA, HIDEKO HEIDI · 2001 to 2016
$4.9M
NIDCD NIH HHS R01 DC004798
6 · The paper itself

Abstract

Current clinical practice cannot distinguish, with any degree of certainty, the multiple pathologies that produce conductive hearing loss in patients with an intact tympanic membrane and a well-aerated middle ear without exploratory surgery. The lack of an effective non-surgical diagnostic procedure leads to unnecessary surgery and limits the accuracy of information available during pre-surgical consultations with the patient. A non-invasive measurement to determine the pathology responsible for a conductive hearing loss prior to surgery would be of great value. This work investigates the utility of wideband acoustic immittance (WAI), a non-invasive measure of middle-ear mobility, in the differential diagnosis of pathologies responsible for conductive hearing loss. We focus on determining whether power reflectance (PR), a derivative of WAI, is a possible solution to this problem. PR is a measure of the fraction of sound power reflected from the middle ear when a sound stimulus is presented to the ear canal. PR and other metrics of middle-ear performance (such as ossicular motion via laser Doppler vibrometry) were measured in well-controlled human temporal bone preparations with simulated pathologies. We report measurements before and after simulation of stapes fixation (n = 8), malleus fixation (n = 10), ossicular disarticulation (n = 10), and superior canal dehiscence (n = 8). Our results are consistent with the small set of previously published reflectance measurements made in temporal bones and patients. In this present study, these temporal bone experiments with different middle- and inner-ear pathologies were compared to the initial normal state by analyzing both WAI and ossicular motion, demonstrating that WAI can be a valuable tool in the diagnosis of conductive hearing loss.

Indexed as

AcousticsAcoustic Impedance TestsCadaverComputer SimulationDiagnosis, DifferentialEar, InnerEar, MiddleEar OssiclesHearing Loss, ConductiveHumansMalleusModels, AnatomicMotionSpectrophotometry, UltravioletTemporal BoneTympanic MembraneConductive hearing lossMiddle-earOssicular disarticulationReflectanceStapes fixationSuperior canal dehiscenceWideband acoustic immittance

Identifiers

PMID27496538
PMCPMC6042870
OpenAlexW2489666991

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.