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Titre : | Effect of ocular fixation on positional nystagmus in BPPV patients (2023) |
Auteurs : | Ahmet Taha Karakuzu, Auteur ; Halil Erdem Özel, Auteur ; Hümeyra Temir, Auteur ; Muhammed Alpay, Auteur ; Fatih Özdogan, Auteur ; Selahattin Genç, Auteur |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol. 62, n.7, Juillet 2023) |
Article en page(s) : | p. 644-649 |
Note générale : | https://doi-org.ezproxy.vinci.be/10.1080/14992027.2022.2062579 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Fixation oculaire ; Nystagmus physiologique ; Vertige positionnel paroxystique bénin (VPPB) (BPPV) |
Résumé : |
Objective
The quantitative suppression rate of positional nystagmus (PN) by ocular fixation (OF) is unknown. This study aims to analyse the effect of OF on the slow phase velocity (SPV) of PN during diagnostic positional manoeuvres (DPMs) with videonystagmography in patients with benign paroxysmal positional vertigo (BPPV). Design DPMs were performed on 58 patients with BPPV, 33 (56.9%) of whom were women. OF was initiated when PN was most evident, and recording was continued. The mean SPV of three consecutive nystagmus before (F0) and after (F1) OF initiation was calculated. The rate of suppression of PN by OF was found in percent with the formula (F0 F1) x 100/F0. Study Sample 58 patients were included in this study. Results The mean age was 56.1 ± 11.2 (range 2776). F0 and F1 values were calculated as 5.742 ± 5.589 and 1.948 ± 3.424 degrees/second, respectively (p Conclusions OF significantly suppresses PN during DPMs in BPPV patients. Elimination of OF during DPMs is important for accurate diagnosis. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/full/10.1080/14992027.2022.2062579 |