Today , special equipment such as the oscillating vacuum microdebrider ( shaver ) and the use of image guided computer navigation systems has enhanced safety in Endoscopic ENT Surgery .
Endoscopic minimally invasive ENT Surgery is used for disorders of the nose , the sinuses ( FESS ) , the cranial base and the orbit such as : nasal polyps , epistaxis , choanal atresia , chronic sinus infections , mucoceles , cerebrospinal fluid leaks , obstructions of lacrimal outflow system , orbital infections .