Your browser doesn't support javascript.
loading
Using Pupillometry to Evaluate Balance in Patients Implanted with a Cochleo-Vestibular Implant.
Tang, Joyce; Ramos de Miguel, Ángel; Falcón González, Juan Carlos; Borkoski Barreiro, Silvia; Rodriguez Montesdeoca, Isaura; Ramos Macías, Ángel.
Afiliación
  • Tang J; Department of Otorhinolaryngology, Head and Neck Surgery, Singapore General Hospital, Singapore 169608, Singapore.
  • Ramos de Miguel Á; Hearing and Balance Laboratory, Las Palmas de Gran Canaria University, Institute of Intelligent System and Numeric Application in Engineering, 35016 Las Palmas, Spain.
  • Falcón González JC; Department of Otolaryngology, Head and Neck Surgery, Complejo Hospitalario Universitario Insular Materno Infantil de Gran Canaria, 35016 Las Palmas, Spain.
  • Borkoski Barreiro S; Department of Otolaryngology, Head and Neck Surgery, Complejo Hospitalario Universitario Insular Materno Infantil de Gran Canaria, 35016 Las Palmas, Spain.
  • Rodriguez Montesdeoca I; Department of Otolaryngology, Head and Neck Surgery, Complejo Hospitalario Universitario Insular Materno Infantil de Gran Canaria, 35016 Las Palmas, Spain.
  • Ramos Macías Á; Hearing and Balance Laboratory, Las Palmas de Gran Canaria University, Institute of Intelligent System and Numeric Application in Engineering, 35016 Las Palmas, Spain.
J Clin Med ; 13(13)2024 Jun 28.
Article en En | MEDLINE | ID: mdl-38999362
ABSTRACT
Maintaining balance comes naturally to healthy people. In subjects with vestibulopathy, even when compensated, and especially if it is bilateral, maintaining balance requires cognitive effort. Pupillometry is an established method of quantifying cognitive effort. Background/

Objectives:

We hypothesized that pupillometry would be able to capture the increased effort required to maintain posture in subjects with bilateral vestibulopathy in increasingly difficult conditions. Additionally, we hypothesized that the cognitive workload during balance tasks, indexed by pupil size, would decrease with the activation of the BionicVEST cochleo-vestibular implants.

Methods:

Subjects with a cochleo-vestibular implant as of March 2023 were recruited, excluding those with ophthalmological issues that precluded pupillometry. Pupillometry was performed using a validated modified videonystagmography system. Computed dynamic posturography and a Modified Clinical Test of Sensory Integration on Balance were performed while the pupil was recorded. Tests were first performed after 24 h of deactivating the vestibular component of the implant. Thereafter, it was reactivated, and after 1 h of rest, the tests were repeated. The pupil recording was processed using custom software and the mean relative pupil diameter (MRPD) was calculated.

Results:

There was an average of 10.7% to 24.2% reduction in MRPD when the vestibular implant was active, with a greater effect seen in tasks of moderate difficulty, and lesser effect when the task was easy or of great difficulty.

Conclusions:

Despite technical challenges, pupillometry appears to be a promising method of quantifying the cognitive effort required for maintaining posture in subjects with bilateral vestibulopathy before and after vestibular implantation.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Clin Med Año: 2024 Tipo del documento: Article País de afiliación: Singapur Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Clin Med Año: 2024 Tipo del documento: Article País de afiliación: Singapur Pais de publicación: Suiza