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Clinical Outcomes of Bioactive Glass S53P4 in Radical Mastoid Cavity Obliteration

Impact of Quality of Life After Radical Cavity Revision and Obliteration With S53P4 Bioactive Glass Granules

Status
Enrolling by invitation
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07496112
Enrollment
50
Registered
2026-03-27
Start date
2025-05-01
Completion date
2027-05-15
Last updated
2026-04-03

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

Conditions

Tympanoplasty

Brief summary

Radical cavities resulting from open tympanoplasty performed for chronic cholesteatomatous otitis may lead to postoperative complications and negatively affect patients' quality of life. These cavities can remain unstable and may be associated with persistent otorrhea, limitations in the use of hearing aids, and the need to avoid water exposure, all of which may significantly impact daily activities. Although mastoid and paratympanic cavity obliteration techniques are increasingly used during primary surgery, many patients previously treated with open tympanoplasty continue to present with problematic postoperative cavities. Obliteration procedures have been proposed in revision surgery to improve cavity stability and reduce complications. Bioactive glass S53P4 has recently attracted interest as an obliterative material due to its long-term stability, biocompatibility, antibacterial properties, and ability to integrate with surrounding tissues. However, evidence regarding the medium-term clinical outcomes of this approach remains limited. The aim of this study is to evaluate the clinical effectiveness and safety of mastoid cavity obliteration using bioactive glass S53P4 in patients with radical cavities following open tympanoplasty. The study will assess surgical success, complication rates, and the impact of the procedure on patient quality of life.

Interventions

PROCEDUREMastoid cavity obliteration with S53P4 bioactive glass

Surgical obliteration of symptomatic radical mastoid cavities using S53P4 bioactive glass as obliterative material during revision surgery after previous open tympanoplasty.

Sponsors

Azienda Socio Sanitaria Territoriale Ovest Milanese, Ospedale di Legnano
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* underwent a canal wall down tympanoplasty or a previous obliteration attempt more than a year ago * present with symptoms related to unstable cavity such as discharge, vertigo, impaired water activities or difficulty with hearing aids will be included * patients Over 18 years who signed informed consent

Exclusion criteria

* Active cholesteatoma * Earlier radiation of Head and Neck area * Pregnancy * Important systemic comorbidities

Design outcomes

Primary

MeasureTime frameDescription
Quality of Life Improvement After Mastoid Cavity Obliteration With S53P43 months after surgeryChange in quality of life assessed using the Chronic Otitis Media Questionnaire-12 (COMQ-12). The COMQ-12 is a validated questionnaire with total scores ranging from 0 to 60, where higher scores indicate worse quality of life and greater disease severity. The outcome is defined as the mean change in total COMQ-12 score from preoperative assessment to postoperative follow-up. Unit of measure: Points (COMQ-12 score).

Secondary

MeasureTime frameDescription
Change in quality of life (GBI score)3 months after surgeryChange in quality of life assessed using the Glasgow Benefit Inventory (GBI), a validated questionnaire with scores ranging from -100 to +100, where higher scores indicate greater benefit. The outcome is defined as the mean postoperative GBI total score. Unit of Measure: Points (GBI score)
Change in audiometric hearing thresholds3 months after surgeryChange from baseline in audiometric hearing thresholds measured by pure-tone audiometry. The outcome is defined as the mean change in hearing threshold levels between preoperative and postoperative assessments. Unit of Measure: Decibels (dB)
Resolution of otorrhea3 months after surgeryResolution or improvement of otorrhea assessed clinically and defined as absence of ear discharge at follow-up. Unit of Measure: Percentage of participants
External auditory canal condition3 months after surgeryCondition of the external auditory canal assessed by otoscopy and graded using the Merchant scale, with the objective of achieving a dry ear. Unit of Measure: Merchant scale score from 0 to 4, where 0 indicates no vertigo and 4 indicates severe vertigo with significant disability.
Change in cavity volume3 months after surgeryChange in cavity volume measured using water filling of the ear canal. The outcome is defined as the difference between preoperative and postoperative cavity volume. Unit of Measure: Milliliters (mL)

Countries

Italy

Contacts

PRINCIPAL_INVESTIGATORMatteo Di Bari, MD

ASST Ovest Milanese

Outcome results

None listed

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