Objective. A systematic review and meta-analysis of the evidence on balloon Eustachian tuboplasty (BET) as a treatment modality for Eustachian tube dysfunction (ETD). We followed the PRISMA guideline and registered with PROSPERO No. CRD42014009461. Data Sources. We searched 12 databases including PubMed and Embase from January 1, 2010, to April 7, 2014, for studies of BET. Endpoints: change in ...