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- Magnusson, M, et al.
(författare)
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Cerebellar infarctions and 'vestibular neuritis'
- 1993
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Ingår i: Acta Oto-Laryngologica, Supplement. - 0365-5237. ; 503, s. 6-64
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Tidskriftsartikel (refereegranskat)abstract
- Consecutive subjects 50 to 75 years of age with sudden onset of vertigo but without cochlear or neurological symptoms were investigated with neuro-imaging techniques. Doppler sonography of the vertebral and carotid arteries and recording of voluntary saccades and pursuit eye movements, caloric, spontaneous, gaze and optokinetic nystagmus. Among those studied, 6 out of 24 subjects could be demonstrated to have cerebellar infarctions, another 2 subjects had occlusion of one vertebral artery. Caloric tests could not identify subjects with a cerebellar infarction whereas prominently reduced pursuit eye movements could. Subjects with cerebellar infarction either had a vertebral artery occlusion or prominent cardio-embolic risk factors. It is suggested that subjects with symptoms as vestibular neuritis should be investigated with pursuit eye movements and with at least standard ECG recordings.
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| 2. |
- Wang, L P, et al.
(författare)
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Auditory function after spinal anesthesia
- 1993
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Ingår i: Regional Anesthesia. - 0146-521X. ; 18:3, s. 5-162
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To determine the effect of spinal anesthesia using 26-gauge needles on hearing.METHODS: Eighteen male patients undergoing transurethral resection of the prostate (TURP) or other transurethral procedures under spinal or epidural anesthesia were studied prospectively to reveal possible auditory side effects of dural puncture or absorption of irrigation fluid to the blood stream. Measurement of auditory function by pure tone, Bekesy and speech audiometry, and measurement of serum concentrations of sodium, potassium, urea, and glucose were performed preoperatively and postoperatively. Clinical examination of cranial nerve functions was performed postoperatively.RESULTS: No mean change in hearing ability was seen in any group. One patient had severe, transient, low-frequency hearing loss with simultaneous severe postdural puncture headache. A statistically significant postoperative fall in serum osmolarity was noted in the epidural TURP group.CONCLUSION: Transient, severe hearing loss may still occur after spinal anesthesia using a 26-gauge needle. Minor hearing loss does not seem to be a problem with this needle size.
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