Author(s)
Timothy Cooper MD
Allan Ho MBBS, MSc, FRCSEd (ORL-HNS)
Affiliation(s)
Abstract:
Background: Conventional percutaneous bone conduction devices offer excellent hearing rehabilitation but their use may be limited by soft tissue complications and patient concern regarding cosmesis. Passive transcutaneous soft tissue driven devices including the BAHA Attract and Sophono Alpha are potential abutment free alternatives. To our knowledge, this is the first systematic review of these two devices. Objectives: To systematically review the literature on soft tissue-driven transcutaneous bone conduction hearing implants (Sophono Alpha and BAHA Attract) with regards to audiological and quality of life outcomes and complications. Data Sources: A systematic review of the literature was performed using the MEDLINE, EMBASE, and Cochrane Library databases in October 2015. Study Selection: All identified English language articles documenting clinical audiological, quality of life outcomes, or complications of implanted BAHA Attract and Sophono Alpha hearing implants were included. Both pediatric and adult cases were included. No limitation was placed on study design or level of evidence. Results: 283 patients implanted with the BAHA Attract or Sophono Alpha have been reported in the literature. The weighted mean PTA gain with these two devices was 28.9±6.9 dB. Major complications including skin breakdown, hematoma, and seroma were rare and occurred in 4% of cases. Minor complications including pain and self-resolving erythema at the implant site occurred in 12%. Patients reported significant quality of life improvement with use of their device. Conclusions: Soft tissue driven transcutaneous bone anchored hearing implants are a viable alternative to percutaneous devices with good audiological outcomes, low morbidity, and high patient satisfaction. Define Professional Practice Gap & Educational Needs: Lack of knowledge or experience with use of devices. Learning Objective: 1. Describe the audiological and quality of life outcomes reported in the literature on these devices 2. Describe the common complications encountered and their frequency. 3. Evaluate the advantages and disadvantages of use of the BAHA Attract and Sophono Alpha Desired Result: To educate attendees regarding the benefits and limitations of these bone conduction hearing implants. This knowledge could be applied to patient evaluation and education of those meeting criteria for these devices IRB - Approved