Immediate and Short-Term Therapeutic Results Between Direction-Changing Positional Nystagmus with Short- and Long-Duration Groups
| Autor: | Jae Ho Ban, Min-Beom Kim, Seok Min Hong |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male medicine.medical_specialty Time Factors Benign paroxysmal positional vertigo Posture Patient positioning Positional Nystagmus Nystagmus Pathologic Patient Positioning Lateral canal Young Adult 03 medical and health sciences Speech and Hearing 0302 clinical medicine Nystagmus Physiologic Internal medicine Humans Medicine In patient Benign Paroxysmal Positional Vertigo Prospective Studies 030223 otorhinolaryngology Short duration Aged business.industry Therapeutic effect Middle Aged medicine.disease Semicircular Canals Otorhinolaryngology Cardiology Female business 030217 neurology & neurosurgery |
| Zdroj: | Ear & Hearing. 37:243-246 |
| ISSN: | 0196-0202 |
| DOI: | 10.1097/aud.0000000000000232 |
| Popis: | OBJECTIVES Clinicians sometimes treat patients with relatively long-duration geotropic direction-changing positional nystagmus (DCPN), without latency. Recently, the concept of a "light cupula" in the lateral canal that reveals persistent geotropic DCPN has been introduced. In the present study, we investigated the immediate and short-term therapeutic findings in long-duration DCPN. DESIGN The authors prospectively compared the therapeutic efficacy of a canalith-repositioning procedure (CRP) in short- and long-duration geotropic DCPN. RESULTS In patients with long-duration DCPN, the authors found no immediate therapeutic effect, and the number of patients showing short-term effects (on the next day) was very low compared with the comparable figure among those with short-duration DCPN. In addition, no cases exhibited canal conversion after the CRP. CONCLUSION Our results suggest that CRP is not useful in patients with long-duration geotropic DCPN, and the pathogenesis of long-duration geotropic DCPN may not originate from free-floating debris but from deflection of the cupula. |
| Databáze: | OpenAIRE |
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