Product Candidacy for the Sophono® Alpha 2 MPO Magnetic Bone Anchored Hearing System (BAHS)
The Sophono magnetic bone conduction hearing system from Medtronic is suitable for patients with conductive hearing loss, mixed hearing loss, and single-sided deafness. The bone anchored hearing system (BAHS) is comprised of the titanium encased magnetic implant1, the Attract® magnetic spacer, and the Alpha 2 MPO sound processor. The magnetic implant is the smallest on the market and lies completely under the skin.1,2 It is surgically placed and is indicated for patients 5 years and older. Sophono currently boasts the lowest profile implant on the market and is a safe alternative to more intrusive implants.3 Pediatric patients (≤ 5 years old) and those not wanting to undergo surgery can still experience improved hearing by wearing the Alpha 2 MPO sound processor on a softband or headband.
The Alpha 2 MPO magnetic bone conduction hearing device is indicated for use among those with a conductive or mixed hearing loss where the bone conduction thresholds are ≤ 45 dB; ideal candidates will have bone conduction thresholds of ≤ 35 dB for the indicated ear.2 Patients with bone conduction thresholds greater than 35 dB should be carefully evaluated for the Sophono system.
For patients with single-sided deafness (SSD) the better hearing ear should have normal hearing (thresholds ≤ 20 dB). Sound is received by the Alpha 2 MPO sound processor worn on the poorer hearing side and is then transferred to the better functioning cochlea. This configuration reduces the head shadow effect.
- Conductive hearing loss
- Mixed hearing loss
- Single-sided deafness
- Age 5 to adult (implanted); all ages (headband/softband)
- ≤ 45 dB bone conduction thresholds for indicated ear
- ≤ 20 dB bone conduction thresholds in the better hearing ear (SSD)
Meet with a clinical representative who will demonstrate the Sophono® system.
- Siegert R., M.D., Semi-implantable transcutaneous bone conduction hearing device with fitting on the day of surgery. Presented at the 29th Politzer Society Meeting, Antalya, Turkey, Nov 2013.
- Centric A and Chennupati, SK, Abutment-free bone-anchored hearing devices in children: Initial results and experience - International Journal of Pediatric Otolaryngology 2014.
- Siegert R and Kanderske J. A New Semi-Implantable Transcutaneous Bone Conduction Device: Clinical, Surgical, and Audiologic Outcomes in Patients with Congenital Ear Canal Atresia. Otology & Neurotology 2013, 34:927-934.