TY - JOUR T1 - Persistence of perilymph fistula mechanism in a completely paretic posterior semicircular canal JF - Journal of Neurology, Neurosurgery & Psychiatry JO - J Neurol Neurosurg Psychiatry SP - 280 LP - 282 DO - 10.1136/jnnp.2004.038083 VL - 76 IS - 2 AU - C Helmchen AU - E Gehrking AU - S Gottschalk AU - H Rambold Y1 - 2005/02/01 UR - http://jnnp.bmj.com/content/76/2/280.abstract N2 - The three dimensional eye movements (search coil technique) of a patient with a completely paretic left posterior semicircular canal as a result of a perilymph fistula (PLF) were studied. The patient still exhibited pressure induced nystagmus that obeyed Ewald’s first law. This finding cannot be explained by otolith stimulation, but might indicate that PLF mechanisms either persist in canal plugging or act on the ampulla by directly deflecting the cupula. ER -