Interventions for adult Eustachian tube dysfunction: a systematic review

Area of Science:

• Otolaryngology
• Evidence-based medicine
• Systematic review

Background:

• Eustachian tube dysfunction (ETD) impairs middle ear protection, ventilation, and drainage.
• Existing management strategies for adult ETD lack established consensus.
• This review aims to assess the clinical effectiveness of current ETD interventions.

Purpose of the Study:

• To determine the clinical effectiveness of interventions for adult ETD.
• To identify evidence gaps for future research directions.

Main Methods:

• Systematic review of published and unpublished studies up to October 2012.
• Inclusion of controlled studies and uncontrolled studies with ≥10 participants.
• Narrative synthesis due to data heterogeneity; outcomes included symptom changes, quality of life, and middle ear function.

Main Results:

• Nineteen studies (3 RCTs, 2 non-RCTs, 14 case series/before-after studies) were included.
• Most studies were small, at high risk of bias, and had significant limitations.
• Limited evidence suggests short-term benefits for some interventions (e.g., topical decongestants, pressure equalization devices, surgical procedures like tuboplasty and balloon dilatation), but no definitive conclusions can be drawn.

Conclusions:

• The quantity and quality of evidence for adult ETD interventions are insufficient.
• No intervention can be recommended due to poor-quality data and significant limitations.
• Further research is required to define ETD, establish diagnostic criteria, and evaluate treatment efficacy.