Table II.
Positioning paroxysmal nystagmus before and after geotropization.
| Right Pagnini-Mc Clure's test |
Left Pagnini-Mc Clure's test |
Diagnosis | Geotropization | Bipositional geotropic nystagmus |
|
|---|---|---|---|---|---|
| Patient 1 | Apogeotropic Nystagmus +++ |
Geotropic Nystagmus ++ |
Direction-fixed paroxysmal nystagmus right lateral canalithiasis |
HPM | Right ++++ Left ++ |
| Patient 2 | Apogeotropic Nystagmus +++ |
Geotropic Nystagmus ++ |
Direction-fixed paroxysmal nystagmus right lateral canalithiasis |
Head rotation on right side | Right ++++ Left ++ |
| Patient 3 | Geotropic Nystagmus ++ |
Apogeotropic Nystagmus ++++ |
Direction-fixed paroxysmal nystagmus left lateral canalithiasis |
Head rotation on left side | Left ++++ Right++ |
| Patient 4 | Geotropic Nystagmus ++++ |
Apogeotropic Nystagmus ++ |
Direction-fixed paroxysmal nystagmus left lateral canalithiasiss |
Head rotation on left side | Left ++++ Right +++ |
| Patient 5 | Apogeotropic Nystagmus +++ |
Geotropic Nystagmus ++ |
Direction-fixed paroxysmal nystagmus right lateral canalithiasis |
HPM | Right ++++ Left ++ |
HPM: Head pitching manoeuvre