Hyperventilation Induced Nystagmus in Dizzy Patients

Chilaf Peled1*, Mordechai Kraus1, Yael Perl2, Victor Novack2 and Daniel M Kaplan1

1Department of Otolaryngology- Head and Neck Surgery, Soroka University Medical Center and the Faculty of Health Sciences, Ben Gurion University, Israel
2Clinical Research Center, Soroka University Medical Center and the Faculty of Health Sciences, Ben Gurion University, Israel

^*Correspondance to: Chilaf Peled 

 PDF  Full Text DOI: 10.25107/2474-1647.2714

Abstract

Hyperventilation Induced Nystagmus (HVIN) is associated with chronic peripheral vestibular disease. Objectives: 1) Study the correlation of HVIN with patient’s co-morbid diseases and otological diagnosis. 2) Study the association between HVIN and the result of the caloric test. Materials and Methods: Patients were evaluated in the dizziness clinic during the years 2010-2011. HVIN was assessed after hyperventilating for 60 sec, during the Videonystagmography (VNG) exam. Patients were summarized as having unilateral peripheral vestibular diseases, central diseases or unknown. Results: One hundred and fifty patients were examined. Comorbidities included cardiovascular disease (N=24), cardiovascular risk factors (N=66), respiratory diseases (N=12), neurological diseases (N=23) and psychiatric disorders (N=9). HVIN was observed in 32/150 (21.3%) patients and ranged from 8.3% (respiratory disease) to 33.3% (in the psychiatric patient group). Among patients with unilateral canal paresis, 9/40 (22.5%) exhibited HVIN, compared to 23/110 (20.9%) patients with a negative caloric test (p-value 0.833). Six out of 39 patients (15.3%) with central diseases exhibited HVIN, compared to 16/66 (24.2%) among patients with peripheral diseases (p-value 0.555). Among patients with a normal caloric exam and positive HVIN 12/23 (52%) had peripheral disease. Conclusion: We did not find an association between HVIN and patients characteristics or comorbid disease. Our study also did not find association between HVIN and the final diagnosis.

Keywords

Hyperventilation; Nystagmus; Dizziness; Vertigo

Cite the article

Peled C, Kraus M, Perl Y, Novack V, Kaplan DM. Hyperventilation Induced Nystagmus in Dizzy Patients. Clin Surg. 2020; 5: 2714..