《耳鼻喉科学 Otolaryngology》课程教学课件（PPT讲稿）Ear_7.Testing Vestibular Function

Testing VestibularFunction

Testing Vestibular Function

Testing VestibularFunction>Fourpercentofpatients18-65yovisitPCPwithcomplaintof"dizziness>Threepercentconsiderit"Severelyincapacitating>Third most commoncomplaintinelderly

Testing Vestibular Function ➢ Four percent of patients18-65 yo visit PCP with complaint of “dizziness” ➢ Three percent consider it “Severely incapacitating” ➢ Third most common complaint in elderly

TestingVestibularFunction>Otolaryngologistisconsideredbalancespecialist>OftenPCPfordizzypatients>Privatepracticephysiciansoftenquoted"I wishIknewmoreaboutdizzypatients

Testing Vestibular Function ➢ Otolaryngologist is considered balance specialist ➢ Often PCP for dizzy patients ➢ Private practice physicians often quoted “I wish I knew more about dizzy patients

Objectives>Describeofficeexaminationsof dizzypatientsDescribevestibularfunctionstudiesReviewindicationsforvestibularfunctionstudies>Reviewefficacyofofficeandvestibularfunctionstudies

Objectives ➢ Describe office examinations of dizzy patients ➢ Describe vestibular function studies ➢ Review indications for vestibular function studies ➢ Review efficacy of office and vestibular function studies

Office Examination of the DizzyPatient>Dix-HallpikeManeuver.Used to provoke nystagmus and vertigocommonlyassociated withBPPV.Headturned45degreestomaximallystimulate posterior semicircular canal.Head supported and rapidly placed into headhangingposition.Frenzel glasses eliminate visual fixationsuppressionofresponse

Office Examination of the Dizzy Patient ➢ Dix-Hallpike Maneuver ⚫ Used to provoke nystagmus and vertigo commonly associated with BPPV ⚫ Head turned 45 degrees to maximally stimulate posterior semicircular canal ⚫ Head supported and rapidly placed into head hanging position ⚫ Frenzel glasses eliminate visual fixation suppression of response