| 1. |
- Hydén, Dag, et al.
(författare)
-
Broad frequency rotatory testing
- 1988
-
Ingår i: Acta oto-laryngologica. Supplementum. - : Informa Healthcare. - 0365-5237 .- 1651-2464 .- 0001-6489 .- 1651-2251. ; 105:s455, s. 48-52
-
Tidskriftsartikel (refereegranskat)abstract
- The method of broad-frequency-band rotatory testing with results from normal subjects and patients with peripheral uni- and bilateral loss as well as central vestibular disorders are reviewed. The following conclusions are drawn: adequate testing of the vestibulo-ocular reflex including side detection of unilateral loss in light or in darkness can only be done with either random or high-frequency (2.5–3 Hz) sinusoidal stimulation. Measurements of compensatory eye movements at lower frequencies where vestibular and non-vestibular signals interact are of interest for central vestibular diagnosis. A decreased ability to suppress vestibular nystagmus is not an uncommon finding in patients with large acoustic neuromas or pathology in the brainstem or cerebellum.
|
|
| 2. |
- Hydén, Dag, et al.
(författare)
-
Quantification of compensatory eye movements in light and darkness
- 1984
-
Ingår i: Acta oto-laryngologica. Supplementum. - : Informa Healthcare. - 0365-5237 .- 1651-2464 .- 0001-6489 .- 1651-2251. ; 96:s406, s. 209-211
-
Tidskriftsartikel (refereegranskat)abstract
- A broad frequency-band rotatory test has been used to quantify compensatory eye movements in 13 healthy subjects during light and darkness conditions. Eye movements were recorded by EOG. Head movements were recorded either by a potentiometer attached to the chair's axis of rotation or by an angular rate sensor attached to a bite-board. Gain and phase values between eye and head velocity were calculated. A systematic error in the higher frequency range is introduced in the results by assuming head movement equal to chair movement. Different instructions in the dark can alter the gain values at lower frequencies (up to 2 Hz) during sinusoidal stimulation. During pseudorandom stimulation no such differences can be obtained. During all test conditions with the rate sensor the gain values approach unity at about 3 Hz.
|
|
| 3. |
- Hydén, Dag, et al.
(författare)
-
Visual suppression tests in acoustic neuroma patients
- 1989
-
Ingår i: Acta oto-laryngologica. Supplementum. - : Informa UK Limited. - 0365-5237 .- 1651-2464 .- 0001-6489 .- 1651-2251. ; 108:s468, s. 349-351
-
Tidskriftsartikel (refereegranskat)abstract
- Fifty-five patients with a unilateral acoustic neuroma were investigated preoperatively with visual suppression tests during rotatory oscillation and caloric irrigation. During a sinusoidal oscillation, 29% of the patients showed a reduced suppression compared to 9% during pseudo-random oscillation and 11 % in the caloric test. In the sinusoidal and caloric tests the majority of the patients with deficient suppression had large or medium-sized tumors. In a few patients with small tumors, pathology was observed in both sinusoidal and randomized tests, presumably as a sign of unconcentration. The study shows that the sinusoidal visual suppression test and to a lesser degree suppression during caloric irrigation are of value for identification of brainstem-cerebellum compression of acoustic neuromas.
|
|
| 4. |
|
|
| 5. |
- Larsby, Birgitta
(författare)
-
Pursuit eye movements. Methodological aspects
- 1988
-
Ingår i: Acta oto-laryngologica. Supplementum. - : Informa Healthcare. - 0365-5237 .- 1651-2464 .- 0001-6489 .- 1651-2251. ; 105:s455, s. 24-27
-
Tidskriftsartikel (refereegranskat)abstract
- A reduced smooth pursuit ability is often a sign of central vestibular pathology. Methodological aspects of stimulation, recording of eye movements and analysis of results in the evaluation of the smooth pursuit function are discussed. A method for evaluation of the smooth pursuit function over a broad frequency range is presented and the effects of target predictability and age on recorded parameters are shown.
|
|
| 6. |
|
|
| 7. |
- Ödkvist, L. M., et al.
(författare)
-
When and how to use Gentamicin in the treatment of Meniere's disease
- 1997
-
Ingår i: Acta oto-laryngologica. Supplementum. - : Informa UK Limited. - 0365-5237 .- 1651-2464 .- 0001-6489 .- 1651-2251. ; 117:S526, s. 54-57
-
Tidskriftsartikel (refereegranskat)abstract
- Gentamicin given as local therapy for severe Meniere's disease is of considerable value in the control of vertigo. The ototoxic antibiotic is instilled through the tympanic membrane causing a peripheral vestibular loss and possibly also diminished endolymph production. In order to achieve the best results with gentamicin treatment it is of utmost importance that the diagnosis is correct. Given to a patient with vertigo of other than peripheral origin, the outcome would be worsening of the existing symptoms and addition of new ones. The method should be used only by physicians who are very familiar with vertigo and otology, and only in patients with such a disturbing degree of vertigo that they are well motivated to receive treatment. Thorough information regarding the disease, the treatment procedure and the symptoms caused by a unilateral peripheral vestibular loss should be given to the patient. Vestibular rehabilitation, including movement therapy, should be given by the physician or, preferably, a well trained physiotherapist on an individual basis or in patient groups together with written practice programmes for use at home. Vertigo attacks are usually relieved in 95% of patients. Twenty percent of patients experience an added hearing loss in the treated ear, although this number is reduced if the treatment is given as a single installment on consecutive days with extra installments given one month later if the vertigo remains.
|
|
| 8. |
|
|
| 9. |
- Ekberg, Olle
(författare)
-
Diagnostic aspects of dysphagia
- 2000
-
Ingår i: Acta Oto-Laryngologica. Supplement. - : Informa UK Limited. - 0365-5237 .- 0001-6489 .- 1651-2251. ; :Suppl. 543, s. 225-228
-
Tidskriftsartikel (refereegranskat)abstract
- Swallowing problems are common, with a prevalence of 5-30% in different populations. Clinical work-up must start with a careful evaluation of the symptomatology, which should then lead to appropriate investigations. A crucial point in the evaluation of these patients is the comparison between the patient's symptoms and the findings during the examination. Symptoms and findings often do not match, or incidental endoscopic or manometric findings are taken as an indication for treatment. This review tries to elucidate this relationship.
|
|
| 10. |
|
|
