منابع مشابه
From nystagmus to the air and water caloric tests.
UNLABELLED The caloric test is an important tool for the assessment of labyrinthine function. OBJECTIVE To compare the nystagmus response in the caloric tests with air at 50ºC and 24ºC and with water at 44ºC and 30ºC. STUDY DESIGN Randomized crossover clinical trial. MATERIALS AND METHODS 40 healthy individuals were submitted to a neurotological evaluation, including caloric tests with ai...
متن کاملComparison of water and air caloric stimulation using videonystagmography
Introduction: The basic methods for assessing the vestibular system are the caloric tests, which can be performed using air or water stimulation. The aim of the study was to compare the parameters of nystagmus provoked during air caloric stimulation with the parameters obtained during water caloric stimulation in subjects with and without vertigo. Material and methods: The study included 102 su...
متن کاملEffects of stimulus duration on air caloric slow phase velocity.
This study was designed (1) to assess the test-retest reliability of the slow phase velocity (SPV) in response to air calorics, (2) to compare four procedures for calculating the SPV (average of 3 beats, average of 10 beats, average of all beats in a 10 second period, and the single largest beat), and (3) to investigate the effects of the duration of air irrigation (45, 60, and 75 seconds) on t...
متن کاملBaseline Shift and Gain Asymmetry in the Caloric Test
The caloric test is quantified using two parameters: unilateral weakness (UW) and directional preponderance (DP). The clinical usefulness of UW, also known as canal paresis, is well established but there is considerable debate about the value of DP. Some laboratories choose not to include DP in the interpretation of the caloric test. One reason for the low clinical value of abnormal DP may be t...
متن کاملThe Caloric Test and the Video Head-Impulse Test in Patients with Vertigo
MATERIALS and METHODS: This is a prospective work in 123 patients with different types of vestibular disease seen because of dizziness in which both procedures were performed the same day. First, the spontaneous nystagmus and head-shake nystagmus were measured. The video head-impulse test was carried out, and finally, the caloric test was performed with water at two different temperatures. Both...
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ژورنال
عنوان ژورنال: Practica Oto-Rhino-Laryngologica
سال: 1977
ISSN: 1884-4545,0032-6313
DOI: 10.5631/jibirin.70.115