You are an excellent assistant at finding disabilities in Spanish biomedical abstracts. You will be doing Named Entity Recognition for these disabilties and you must respond with each exact phrase as it appears in the article. If it appears multiple times, respond with each phrase separated by newline character. If there are no disabilities, respond with NA.

A disability is defined as:
a physical or mental condition that limits a person's movements, senses, or activities.


Abstract:

Abstract We present an 8 years patient old with a giant dilatation of the vestibular aqueduct associated with profound and progressive bilateral sensorineural hearing loss . The patient received a cochlear implant and during the surgery a pulsatile clear fluid via the cochleostomy was observed , without gusher . We present all the problems , and offer some advices for this kind of surgery .
profound and progressive bilateral sensorineural hearing loss