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To investigate the placebo effect in surgery for Ménière's disease, a double-blind controlled study was undertaken, comparing effects of a regular endolymphatic shunt with those of regular mastoidectomy. Thirty patients with typical Ménière's diseases, selected because of unsuccessful medical treatment, participated. Patients completed daily dizziness(More)
Click-evoked acoustic emissions were recorded in 10 normally hearing young adults and evaluated by methods previously described. Five of the subjects were tested on both ears. A clear response could be traced down to or below the psychoacoustic threshold in all ears. However, the response pattern differed significantly from one ear to another, yielding an(More)
Using signal averaging technique, stimulated acoustic emissions can be recorded from the human ear with a probe in the external ear canal. An acoustic click stimulus was used, produced by half a sinusoid of 2 kHz with the polarity corresponding to the rarefaction mode. A number of different techniques were developed in order to evaluate the latency and(More)
Between 1966 and 1976, 875 patients with bacterial meningitis were treated at the Department of Infectious Diseases, Rigshospitalet. Among 495 patients admitted directly to the department, fatality rates were 0.4 per cent for meningococcal infections (including septicaemia), 3.7 per cent for haemophilus meningitis and 8.7 per cent for pneumococcal(More)
During the period 1966-76, 164 patients with pneumococcal meningitis were admitted to the University Hospital, Copenhagen. Of 111 survivors 94 underwent a series of clinical examinations. The findings in each patient were assessed for their aetiological relationship to meningitis. Of these patients 54% had neurological sequelae, 42% had neuropsychological(More)
During the years 1966-1976, 875 patients with bacterial meningitis were treated at the Department of Infectious Diseases, Rigshospitalet, Denmark. In late 1979 and early 1980 a survey by questionnaire was conducted among survivors concerning the impact of the disease. Replies were received from 667 patients (96.4 per cent). The most common complaints after(More)
The reason for the effectiveness of endolymphatic sac-mastoid shunt surgery in the treatment of patients with Meniere's disease is still open for debate. In a double-blind study, published in 1981, we could not demonstrate any difference between the effect of a simple mastoidectomy and a regular endolymphatic sac-mastoid Silastic sheet shunt. However, a(More)
Stimulated acoustic emissions were recorded in response to tonal stimuli at 60 dB p.e. SPL in a small group of normal-hearing adults. Power spectral analysis reveals that the evoked activity from each ear contains energy in preferential frequency bands and the change of stimulus frequency has only a minor effect on the power spectra, i.e. the maximum jumps(More)
103 children between 1 and 10 years of age participated in a double-blind placebo-controlled trial testing the effect of penicillin-V, 55 mg/kg/day, for two days versus seven days in acute otitis media. No significant differences could be demonstrated with regard to earache, healing of the tympanic membrane, tympanometry, fever or common cold symptoms. 76%(More)