Clinical trial · Clinical audiology← The news desk

✦ The Dispatch

Study protocol of the SuDHO study: hyperbaric oxygen treatment added to standard care for acute idiopathic sudden sensorineural hearing loss - a multicentre randomised controlled trial

A dispatch from PubMed — filed

Continue reading at PubMed

✦ The floor

Discussion

Signed responses from readers of the wire.

✦ Clinical Takeaway ✦

No actionable change yet — this is a published protocol for an RCT that has not reported results; clinicians should monitor outcomes when the trial reports, as hyperbaric oxygen for sudden sensorineural hearing loss remains contested.

✦ Why It Matters ✦

Sudden sensorineural hearing loss has limited evidence-based treatment options, and a well-designed multicentre RCT evaluating hyperbaric oxygen as an adjunct to standard care could meaningfully shift clinical guidelines.

✦ Key Points ✦
  1. 01SuDHO is a multicentre randomised controlled trial (RCT) — the gold standard study design for treatment evidence.
  2. 02Intervention: hyperbaric oxygen therapy (breathing pure oxygen under pressure) added to standard corticosteroid care.
  3. 03Target condition: acute idiopathic sudden sensorineural hearing loss (ISSNHL) — unexplained rapid hearing loss.
  4. 04This publication is a protocol paper; no efficacy results are yet available.
  5. 05Published in BMJ Open, an open-access peer-reviewed journal.
✦ Claims & Evidence ✦

Hyperbaric oxygen treatment added to standard care may improve outcomes in acute idiopathic sudden sensorineural hearing loss.

studyunclear
✦ Research metadata ✦
PMID
42982521
DOI
10.1136/bmjopen-2026-121315.
Journal
BMJ Open
Publication type
research_article
Evidence level
1b
Population
Adults with acute idiopathic sudden sensorineural hearing loss
Intervention
Hyperbaric oxygen therapy added to standard care (corticosteroids)
Comparator
Standard care alone

Primary outcomes

Hearing recovery in acute idiopathic sudden sensorineural hearing loss

✦ Related stories ✦