a surgical procedure to establish a communication between the endolymphatic sac and the cerebrospinal fluid space for the treatment of Ménière disease.
en·do·lym·phat·ic shunt op·er·at·ion
(en'dō-lim-fat'ik shŭnt op-ĕr-ā'shŭn) An operation to establish a communication between the endolymphatic sac and the cerebrospinal fluid space for the treatment of Ménière disease.