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A hundred and fifty hearing-handicapped were interviewed at home two years after their hearing aids had been fitted. The aim was to find out how many of the delivered aids were in use, and if not, why. A remarkable percentage of the hearing aids were very seldom, if ever, in use (23%), 57% of them were used regularly every day and 19% of the(More)
The repeatability of posturographic measurements and the effects of sleep deprivation on them were investigated in 23 volunteers over a period of four months. Postural stability was studied by evaluating body sway velocity and the maximal and average vibration-induced shifts of the centre of pressure in the anterio-posterior and lateral directions. The(More)
OBJECTIVE To examine otoacoustic emission and tympanometric findings in children with surgically confirmed middle ear effusion (MEE). DESIGN A total of 102 children aged 0.7 to 11.4 yr undergoing surgery because of otitis media were included in the study. A tympanometric examination and transient evoked otoacoustic emission (TEOAE) measurement were(More)
A population-based survey of patients who had undergone surgery for chronic ear disease over the past 30 years in northern Finland revealed that the number of new surgical cases of both chronic suppurative otitis media and cholesteatoma has declined sharply after a peak in 1971-1974 and is now almost non-existent in contrast to the number of patients being(More)
BACKGROUND Chronic obstructive pulmonary disease (COPD) is characterized by structural changes in alveoli and airways. Our aim was to analyse the numbers of alpha-smooth muscle actin (α-SMA) positive cells, as a marker of myofibroblasts, in different lung compartments in non-smokers and smokers with normal lung function or COPD. METHODS α-SMA, tenascin-C(More)
A new test was developed to assess speech recognition in noise. The test was designed to be run in a personal computer supplied with a sound card. One thousand disyllabic test words and noise were stored in digitized form on the hard disk of the computer. The measure given by this test is speech recognition threshold in noise (SRTN) corresponding to 50%(More)
Eight different ear plug materials were tested, in 5 ears each, in artificial shallow underwater conditions for 30 minutes, in order to determine their efficacy in sealing the ear canals to avoid water-borne infections in ear canals and open middle ears. Most of the plugs tested would meet everyday requirements for protection, but the polymeric foam plugs,(More)
Twelve health subjects were assessed using static posturography before and after intravenous alcohol infusion in a double-blind experiment. The dose was 0.5 g ethanol per kg body weight in 15 minutes, which raised the blood alcohol concentration to a level of approximately 1 mg/mL. Among other parameters, the average body sway velocity (BSV) and area of(More)
Static posturography has been developed from a basic research test to a widely used clinical tool for evaluating dizzy patients. Before any actual standardization can be achieved, however, several aspects of the test situations have to be evaluated, including the position of the feet. The quantitative significance of the standing position in posturographic(More)
  • K Laitakari
  • 1990
From 1982 to 1987, 20 patients with disabling attacks of vertigo and severe hearing loss due to unilateral Ménière's disease were treated with local intratympanic gentamycin. In 18 patients control of vertiginous attacks was achieved. Hearing deteriorated in 8 patients. In spite of complete control of attacks a disabling ablation type of unsteadiness and(More)