The reproducibility of caloric tests of vestibular function in young and old subjects

Davidson, J. S. D.; Wright, Grace; McIlmoyl, L; Canter, Robert J.; Barber, Hugh O.

doi:10.3109/00016488809106434

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…Differences in caloric test method and statistical analysis of the data may explain this difference. Hajioff et al (2000) and Davidson et al (1988) described increasing variability on several ENG tests with age. One study even suggested that ENG was of little value in discriminating between healthy and dizzy elderly patients because of response variability (Hajioff, et al, 2002).…”

Section: Ces and Tesmentioning

confidence: 96%

A Comparison of Water and Air Caloric Responses and Their Ability to Distinguish Between Patients with Normal and Impaired Ears

2008

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Current bithermal test methods assume an equivalence of caloric response strength from warm and cool stimuli. Our results show standard cool and warm water stimuli provoke substantially different response magnitudes, with warm stimuli provoking stronger responses. When calibrated as described herein, air stimuli perform comparably with water stimuli for bithermal caloric test purposes, with more uniform and less variable response distributions. Both air- and water-based tests were able to distinguish between normal and abnormally weak ears with sensitivity and specificity values between 0.82 and 0.84. We advocate for the calibration of all caloric stimuli based on the test's statistical performance and not arbitrary assumptions about stimulus equivalence.

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Section: Ces and Tesmentioning

confidence: 96%

A Comparison of Water and Air Caloric Responses and Their Ability to Distinguish Between Patients with Normal and Impaired Ears

2008

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“…Finally, Davidson and colleagues examined the reproducibility of the caloric response in 15 younger subjects (20 to 30 years) and in 14 older subjects (65 to 75 years). 81 They reported that the intersubject variability of the total caloric response was poor, citing a statistically significant intersubject variability in caloric responses in both young and older groups, with older groups exhibiting a greater magnitude of variability.…”

Section: Caloric Testingmentioning

confidence: 99%

Aging of the Human Vestibular System

Zalewski

2015

Semin Hear

110

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Aging affects every sensory system in the body, including the vestibular system. Although its impact is often difficult to quantify, the deleterious impact of aging on the vestibular system is serious both medically and economically. The deterioration of the vestibular sensory end organs has been known since the 1970s; however, the measurable impact from these anatomical changes remains elusive. Tests of vestibular function either fall short in their ability to quantify such anatomical deterioration, or they are insensitive to the associated physiologic decline and/or central compensatory mechanisms that accompany the vestibular aging process. When compared with healthy younger individuals, a paucity of subtle differences in test results has been reported in the healthy older population, and those differences are often observed only in response to nontraditional and/or more robust stimuli. In addition, the reported differences are often clinically insignificant insomuch that the recorded physiologic responses from the elderly often fall within the wide normative response ranges identified for normal healthy adults. The damaging economic impact of such vestibular sensory decline manifests itself in an exponential increase in geriatric dizziness and a subsequent higher prevalence of injurious falls. An estimated $10 to $20 billion dollar annual cost has been reported to be associated with falls-related injuries and is the sixth leading cause of death in the elderly population, with a 20% mortality rate. With an estimated 115% increase in the geriatric population over 65 years of age by the year 2050, the number of balanced-disordered patients with a declining vestibular system is certain to reach near epidemic proportions. An understanding of the effects of age on the vestibular system is imperative if clinicians are to better manage elderly patients with balance disorders, dizziness, and vestibular disease.

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“…It is also inexpensive, reproducible and, most importantly, can test each ear separately. 1 Because of these factors, it has become the “gold standard” in vestibular testing against which other tests are measured. There are, however, a number of limitations to caloric testing.…”

Section: Introductionmentioning

confidence: 99%

Does High‐Frequency Pseudo‐random Rotational Chair Testing Increase the Diagnostic Yield of the ENG Caloric Test in Detecting Bilateral Vestibular Loss in the Dizzy Patient?

et al. 2001

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The reproducibility of caloric tests of vestibular function in young and old subjects

Cited by 10 publications

References 11 publications

A Comparison of Water and Air Caloric Responses and Their Ability to Distinguish Between Patients with Normal and Impaired Ears

A Comparison of Water and Air Caloric Responses and Their Ability to Distinguish Between Patients with Normal and Impaired Ears

Aging of the Human Vestibular System

Does High‐Frequency Pseudo‐random Rotational Chair Testing Increase the Diagnostic Yield of the ENG Caloric Test in Detecting Bilateral Vestibular Loss in the Dizzy Patient?

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