Table 2. Age-related caloric irrigation findings (adapted from Calder52).
| Study | Study Sample | Findings |
|---|---|---|
| Bruner and Norris73 | 293 clinic patients with symptoms of dizziness and “normal” vestibular testing | Increase in SPEV caloric response up until 60–70 y with a subsequent decline in response (greater for warm irrigations) |
| Van der Laan and Ooseterveld74 | 334 normal adult subjects | Younger subjects (3rd decade) lower nystagmus frequency and higher nystagmus amplitude than subjects > 50 y of age |
| Clement et al75 | Decreased SPEV with advancing age | |
| Mulch and Petermann51 | 102 health adults from 11–70 y of age divided into 6 age groups | Most intense SPEV response obtained from middle to late middle-aged adults with a decrease in SPEV only observed after 60 y of age |
| Karlsen et al76 | 75 subjects aged 18–81 y | Declining SPEV, duration, amplitude, and frequency for warm irrigations beginning at age 65–70 y |
| Ghosh77 | 78 subjects divided into 7 age groups from 10–70 y | Overall decreasing SPEV as a function of age during serial vestibulometry |
| Jacobson and Henry78 | Significant declines in VOR fixation suppression with advancing age | |
| Peterka et al79 | 216 normal subjects from 7–81 y of age | No obvious changes in caloric response with advancing age with a high degree of response variability |
Abbreviations: SPEV, slow-phase eye velocity; VOR, vestibular ocular reflex.