Evidence map›Paper›PMID 33746228›Full record

ArticleActa otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale2021

Retrosigmoidal placement of an active transcutaneous bone conduction implant: surgical and audiological perspectives in a multicentre study.

Pietro Canzi, Irene Avato, Millo Beltrame, Giovanni Bianchin, Marco Perotti, Lorenzo Tribi, Barbara Gioia, Federico Aprile, Stefano Malpede, Andrea Scribante and 2 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Implantable hearing devices in clinical practice. Systematic review and consensus statements.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2024
    Pooled it
  2. Article
  3. A Prospective, Multicenter Clinical Investigation on the Safety and Performance of a New Active Transcutaneous Bone-Anchored Implant System.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2026
    Article
  4. Review
  5. Current trends on subtotal petrosectomy with cochlear implantation in recalcitrant chronic middle ear disorders.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2023
    Review
  6. 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

12 authors at 4 institutions in 1 country.

Pietro Canzi *Department of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
Irene Avato *Department of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
Millo Beltrame *Department of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
Giovanni BianchinDepartment of Otolaryngology and Audiology, Arcispedale Santa Maria Nuova - IRCCS, Reggio Emilia, Italy.
Marco PerottiOtorhinolaryngology Unit, Ospedale Civile "SS Antonio Biagio and C. Arrigo", Alessandria, Italy.
Lorenzo TribiDepartment of Otolaryngology and Audiology, Arcispedale Santa Maria Nuova - IRCCS, Reggio Emilia, Italy.
Barbara GioiaOtorhinolaryngology Unit, Ospedale Civile "SS Antonio Biagio and C. Arrigo", Alessandria, Italy.
Federico AprileDepartment of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
Stefano MalpedeDepartment of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
Andrea ScribanteUnit of Orthodontics and Paediatric Dentistry-Section of Dentistry-Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy.
Marco ManfrinDepartment of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
Marco BenazzoDepartment of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.
University of Pavia · ITAzienda Ospedaliera Nazionale SS. Antonio e Biagio e Cesare Arrigo · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITOspedale Santa Maria · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe retrosigmoidal (RS) placement of the Bonebridge system (BB) has been advocated for cases of unfavourable anatomical or clinical conditions which contraindicate transmastoid-presigmoidal positioning. However, these disadvantageous conditions, combined with the considerable dimensions of the implant, may represent a challenge, especially for surgeons with no skull base experience. Moreover, the literature reports only limited experience concerning RS implantation of the BB system.

methodsA multicentre, retrospective study was conducted to analyse the surgical and functional outcomes of a wide population of patients undergoing RS placement of the BB system by means of a surgical technique specifically developed to overcome the intraoperative issues related to this surgery. Twenty patients with conductive or mixed hearing loss and single sided deafness were submitted to RS implantation of the BB system.

resultsAudiological assessment concerning the measurement of the functional and effective gain by pure-tone audiometry (28 dB HL and -12.25 dB HL, respectively) and speech audiometry (24.7 dB HL and -21 dB HL, respectively) was conducted. A high overall subjective improvement of quality of life was recorded with the Glasgow Benefit Inventory questionnaire. No major complications, such as device extrusions or other conditions requiring revision surgery, were reported during the follow-up period (median: 42 months).

conclusionsIn our study, which has one of the largest cohort of patients reported in the literature, RS placement of the BB system was safe and effective. Our functional results showed comparable hearing outcomes with presigmoidal placement. The effective gain, rarely investigated in this field, may be the object of further research to improve our understanding of bone conduction mechanisms exploited by bone conduction hearing implants.

Indexed as

Bone ConductionHearing AidsSpeech PerceptionAdultAgedAudiometry, Pure-ToneFemaleHearing Loss, ConductiveHumansMaleMiddle AgedQuality of LifeRetrospective StudiesTreatment OutcomeYoung AdultBonebridgebone conduction hearing implantretrosigmoidalsurgical techniquetranscutaneous

Identifiers

PMID33746228
PMCPMC7982754
OpenAlexW3136140331

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.