**3. Meniett device**

During the decade of 1970, the demand for a more effective and a nondestructive method for the treatment of MD, Inglestad et al. [41] observed that some patients reported improvement with changes of pressure in a pressure chamber. Densert et al. [42] showed that the manipulation of the middle ear pressure influences the pressure in the inner ear; later, improved hearing and dizziness in patients with MD were described after the application of positive pressure in the middle ear.

Additionally, there was improvement of the cochlear electrical potentials after administration of positive pressure in the middle ear, which finally led to the development of the device known as the Meniett (Medtronic Xomed Surgical Products, Jacksonville, FL).

The Meniett device emits a pulse of repeated pressure of 0.6 second in the range of 0–20 cm H2 O at 6 Hz. Treatment consists of three to four cycles of a sequence of treatment of 5 min, this device requires only a short-term ventilation tube (Sheppard) to allow the transmission of impulses in an auditory external pressure to the middle ear.

The FDA approved the use of the device in 2002, demand is still low, despite recent work showing the effectiveness of the device. Meniett reduces the frequency of dizziness in patients with Meniere's disease activity, an improvement of AAO-HNS Meniere's disease functional level scale, but the device does not significantly improve hearing, showing a safe option for patients with refractory diseases to the conventional treatments [43].
