ArticleOtology & neurotology open2025
Evaluating Middle Ear Absorbance and Resonant Frequency in Patulous Eustachian Tube Patients Using Wideband Tympanometry.
Article in Otology & neurotology open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Patulous Eustachian tube dysfunction following rapid weight loss associated with semaglutide use: A case report.SAGE open medical case reports · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: This study aimed to investigate the utility of wideband tympanometry (WBT) in diagnosing patulous Eustachian tube (PET) by examining differences in middle ear absorbance and resonant frequency between PET patients and controls. Study Design: This is a retrospective observational study. Setting: This study was conducted at Iwate Medical University Hospital. Subjects and Methods: A review of medical records identified 25 ears of 19 PET patients and 18 ears of 9 patients with sensorineural hearing loss or vertigo as a control group. Diagnosis of PET was based on Japan Otological Society criteria. WBT was conducted across frequencies of 226-8000 Hz, measuring ambient pressure absorbance ratios and peak pressure absorbance ratios, as well as resonant frequency (RF) values. Results: The PET group demonstrated significantly lower absorbance at 1000 Hz ( Conclusion: WBT is a valuable diagnostic tool for PET, with significant reductions in 1000 Hz absorbance and resonant frequency in PET patients. These parameters may serve as markers for PET, aiding in its differentiation from other middle ear conditions.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.