Clinical Characteristics of Horizontal Canal Benign Paroxysmal Positional Vertigo with Persistent Geotropic Direction Changing Positional Nystagmus
- Author:
Kyung Min KO
1
;
Mee Hyun SONG
;
Jin Woo PARK
;
Joon Hee LEE
;
Yong Gook SHIN
;
Dae Bo SHIM
Author Information
1. Department of Otorhinolaryngology, Myongji Hospital, Seonam University College of Medicine, Goyang, Korea. lovend77@gmail.com
- Publication Type:Original Article
- Keywords:
Benign paroxysmal positional vertigo;
Direction-changing positional nystagmus;
Geotropic nystagmus
- MeSH:
Counseling;
Dizziness;
Humans;
Nystagmus, Physiologic;
Retrospective Studies;
Vertigo
- From:Journal of the Korean Balance Society
2015;14(4):117-122
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The purpose of this study was to identify the clinical characteristics of horizontal canal benign paroxysmal positional vertigo (h-BPPV) with persistent geotropic direction changing positional nystagmus (DCPN). METHODS: One hundred thirty two patients diagnosed as the geotropic subtype of h-BPPV were analyzed retrospectively. Patients were classified into two groups: persistent h-BPPV (ph-BPPV) group which means h-BPPV showing persistent (>1 minute) geotropic DCPN and short duration h-BPPV (sh-BPPV) group that means h-BPPV with short duration (< or =1 minute) geotropic DCPN. We compared the clinical characteristics and treatment outcomes between the two groups. RESULTS: The study included 34 patients with ph-BPPV and 98 patients with sh-BPPV. There were no differences between the two groups in age, distribution of sex and the affected side. The ph-BPPV group had higher secondary BPPV preponderance and dizziness handicap index (DHI) score compared to the sh-BPPV group. The ph-BPPV group required higher number of canalith repositioning procedures (CRPs) until resolution and higher multiple/single CRP ratio than the sh-BPPV group. In addition, the ph-BPPV group showed longer duration until the remission of subjective symptoms (vertigo, dizziness) compared to the sh-BPPV group. CONCLUSION: ph-BPPV was more frequently associated with secondary causes of BPPV and demonstrated higher DHI score, total number of CRP, and longer remission duration of subjective symptoms compared to sh-BPPV. This information may be helpful for clinicians in counseling and managing the patients with persistent geotropic DCPN h-BPPV.
