<prompt> Endolymphatic decompression is done inTinnitusAcoustic neuromaMenieres diseaseEndolymphatic fistula  <response>: Decompression of endolymphatic sac is done as a conservative procedure as a pa of the surgical treatment of Menieres disease. Ref: Diseases of EAR, NOSE and THROAT by PL Dhingra 7th Edition page no.115 