NCT04788134

Post- Rotatory Nystagmus Test: Normative Data for Spanish Adolescents and Adults

Normative Data for Post-rotatory Nystagmus Test at Spanish Adolescent and Adult Population: a Transversal Study

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 163 (estimated)
• Sponsor: Quesada, Rocío Vico · Individual
• Sex: All
• Age: 13 Years
• Healthy volunteers: Accepted

Summary

The vestibulo-ocular reflex is the motor response of our eyes in the opposite direction to a translational or rotational movement of our head. The post-rotational nystagmus test (PRN) assesses the integrity of this reflex, thus assessing the perception of the vestibular system. The duration of this reflex after administering this test has been widely studied in children from 2 months to 12 years and 11 months of age. However, there is a knowledge gap from that age that the present study seeks to address.

Detailed description

The vestibulo-ocular reflex (VOR) is the motor response of our eyes in the opposite direction to a translational or rotational movement of our head. The post-rotational nystagmus test (PRN) assesses the integrity of this reflex, thus assessing the perception of the vestibular system. This system has an important role in our balance, stabilization of the visual field when our head moves, awareness of the position of our head in space, postural control and functions of the Autonomous Nervous System. The duration of this reflex after administering this test has been widely studied in children from 2 months to 12 years and 11 months of age. However, there is a knowledge gap from that age that the present study seeks to address. This article aims to explore the use of the PRN test for adolescent and adults, to prove if the duration of the VOR is longer in these population than in children. It will be also recollected personal data to study whether exposure to vestibular input influences its reactivity and perception.

Conditions

• Vestibular Function Tests
• Nystagmus Vestibular

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Post-rotatory nystagmus test	The test is administrated with the person sit down with cross legs at a rotatory board, with the head positioned by the examiner in 30° of forward flexion. The position was maintained by the administration of the test. The administration consist in two administrations separate by one minute. Each administration consist in rotate the person 10 times in 20 seconds (the first 10 rotations in a counterclockwise direction in 20 s and the second 10 rotations in a clockwise direction in 20 s). After each administration the examiner counts the duration of the reflex in seconds.

Timeline

• Start date: 2021-04-01
• Primary completion: 2021-06-01
• Completion: 2021-09-01
• First posted: 2021-03-09
• Last updated: 2021-03-09