Evidence map›Paper›PMID 33136010›Full record

ArticleThe journal of international advanced otology2020

Spiral Ganglions and Speech Perception in the Elderly. Which Turn of the Cochlea is the More Relevant? A Preliminary Study on Human Temporal Bones.

Arianna Di Stadio, Antonio Della Volpe, Massimo Ralli, Fiammetta Korsch, Antonio Greco, Giampietro Ricci

Open access · diamondAbstract read
In one paragraph

Article in The journal of international advanced otology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

7 citing papers in PubMed, 6 citations in OpenAlex.

  1. Trial
  2. Article
  3. [Research progress on the mechanism of auditory center remodeling and clinical intervention strategies in presbycusis].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2026
    Review
  4. Peripheral neural synchrony in post-lingually deafened adult cochlear implant users.medRxiv : the preprint server for health sciences · 2024
    Article
  5. Article
  6. Article
  7. Review
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

6 authors at 3 institutions in 1 country.

Arianna Di StadioDepartment of Otolaryngology, University of Perugia, Perugia, Italy.
Antonio Della VolpeOtology and Cochlear Implant Unit, Regional Referral Centre Children's Hospital "Santobono-Pausilipon", Naples, Italy.
Massimo RalliDepartment of Organ of Sense, University La Sapienza, Rome, Italy.
Fiammetta KorschDepartment of Otolaryngology, Santobono Posilipon Hospital, Naples, Italy.
Antonio GrecoDepartment of Organ of Sense, University La Sapienza, Rome, Italy.
Giampietro RicciDepartment of Otolaryngology, University of Perugia, Perugia, Italy.
Sapienza University of Rome · ITUniversity of Perugia · ITSantobono Children's Hospital · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo identify the cochlear segment in which spiral ganglion neuron (SGN) loss may more severely impact discrimination thresholds. MATERIALS AND

methodsThirteen temporal bones from 13 subjects between 55 and 77 years of age were analyzed. The organ of corti was analyzed to identify the loss of hair cells, and the number of SGNs in each cochlear segment were counted. The results of the speech perception test (SPT) and pure tone audiometry (PTA) tests were collected. PTA averages for low and high frequencies were calculated. One-way analysis of variance (ANOVA), Pearson, Spearman, and multilinear regression tests were performed.

resultsNo statistically significant correlation was identified between the patient's age and number of SGNs. Statistically significant differences were observed between the number of SGNs in the different cochlear segments (one-way ANOVA: p<0.0001) and between poor PTA average and SPT scores (negative correlation) (p=0.03). A statistically significant correlation was identified between the overall number of cochlear SGNs and SPT scores (p=0.02) and between the number of SGNs in cochlear segments I (p=0.04) and II and the SPT score (p=0.03).

conclusionsWe identified that residual SGNs in the basal and middle turns of the cochlea might be determinants of speech perception.

Indexed as

Speech PerceptionSpiral GanglionAgedCochleaHair Cells, AuditoryHumansMiddle AgedTemporal Bone

Identifiers

PMID33136010
PMCPMC7901449
OpenAlexW3097765795

What OpenQuestion holds

Textmetadata
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.