Persistent Direction-Fixed Nystagmus Following Canalith Repositioning Maneuver for Horizontal Canal BPPV: A Case of Canalith Jam
Clinical and Experimental Otorhinolaryngology
;
: 138-141, 2014.
Article
in English
| WPRIM
| ID: wpr-173816
ABSTRACT
The authors report a 64-year-old man who developed persistent direction fixed nystagmus after a canalith repositioning maneuver for horizontal canal benign paroxysmal positional vertigo (HC-BPPV). The patient was initially diagnosed with right HC-BPPV given that the Dix-Hallpike test showed geotropic horizontal nystagmus that was more pronounced on the right side, although the roll test did not show any positional nystagmus. The patient was treated with a canalith repositioning maneuver (Lempert maneuver). The next day, the patient experienced a different character of dizziness, and left-beating spontaneous nystagmus regardless of head position was observed. After a forced prolonged left decubitus and frequent head shaking, his symptoms and nystagmus resolved. This condition, referred to as canalith jam, can be a complication after the repositioning maneuver in patients with BPPV. Atypical positional tests suggest that abnormal canal anatomy could be the underlying cause of canalith jam.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Nystagmus, Physiologic
/
Vertigo
/
Nystagmus, Pathologic
/
Dizziness
/
Head
Limits:
Humans
Language:
English
Journal:
Clinical and Experimental Otorhinolaryngology
Year:
2014
Type:
Article
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