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Biomedical subjects

E Aantaa

Publications and source records attributed to E Aantaa.

At least 37 records · Page 2Linked to original sources
PubMed1979

Vestibular neuronitis; a follow-up study.

Forty-three patients suffering from vestibular neuronitis were examinated during the acute attack and on an average 3.2 years afterwards. In the follow-up examination there was no caloric reactions in 7 patients, lowered in 15 patients and normal symmetric reactions in 21 persons. In the first examination all had normal symmetric hearing, in the follow-up examination there was 5 to 10 db hearing loss in 4.6 and 8 kHz on the diseased side in 24 patients.

Adolescent↗
PubMed1978

[Alcohol and balance disorders (author's transl)].

The optokinetic, horizontal, per- and postrotatoric nystagmus was recorded before the consumption of alcoholic beverages by 20 young test persons as well as 2, 4, and 6 h later. The results showed that the most evident alterations cannot be recorded during the highest blood alcohol concentration but only 6 h after the consumption of alcohol. It was evaluated that the decomposition products of alcohol provoked the vestibular disorders.

Adult↗
PubMed1977

Equilibrial disturbances caused by hearing aids in hard of hearing children.

To 22 hard-of-hearing school pupils a 2 sec. tone pip of 1500 Hz was presented at 120 to 130 dB SPL's (equals 113-123 dB ISO) to both (=44) ears. In 32 of the ears (?) the sound stimulus elicited an ENG change and thus a possible disturbance of equilibrium, 2 cases of type A, 3-10 sec. nystagmus; I case of type B, with continuing nystagmus; 3 cases of type C, with strengthening nystagmus; and I case of type D, with direction-changing nystagmus, were found. We conclude that, in perceptive hearing defects, the maximum output of hearing aids should be limited to 120 dB, not only because of the effect on hearing thresholds. but also on the equilibrial sense. Again we recommend that hearing aids should not be used in those surroundings where loss of equilibrium is dangerous.

Adolescent↗
PubMed1976

Controlled clinical trial comparing the effect of betahistine hydrochloride and prochlorperazine maleate on patients with Meniére's disease.

Therapeutic effects of prochlorperazine and betahistine on patients with confirmed Meniere's disease (range of duration 1-11 years) were compared in a double-blind cross-over trial. The two active treatment periods lasted 4 montsh each, separated by a single blind "wash-out" period of 1 month's duration. Out of 30 patients 23 completed the trial. The clinical status of the patients was followed by the investigator by regular control visits during the trial period. Upon completion of the study preference for the first or the second period was assessed. The therapeutic effect of betahistine was found to be superior to that of prochlorperazine (sign test a = 0.05). The number of vertigo attacks was calculated in 17 patients and on this basis the two drugs were of equal value (Pratt's test 2 a = 0.05). No side effects were observed.

Adult↗
PubMedDate not supplied

Prevalence of secretory otitis media in seven to eight year old school children.

One thousand two hundred and seven school children aged seven to eight years were examined in the spring of 1978 in order to determine the frequence of undiagnosed secretory otitis media (SOM). All children were without any subjective ear symptoms. Two and eight tenths percent of the children were found to have SOM. The relation between SOM and the appearance of allergy, the occurrence of earlier otitis media, the occurrence of repeated upper respiratory tract infections and the treatment of earlier middle ear infections are discussed.

Child↗
PubMedDate not supplied

The nystagmus threshold in turning test in different age groups and in patients suffering from otosclerosis.

The threshold of nystagmus during angular acceleration and deceleration was investigated in two series of healthy persons with an average age of 20 and 42 years and in series of otosclerotic patients with an average age of 42 years. It was shown that age as such does not influence the thresholds, but a lesion in the inner ear, such as otosclerosis, causes higher thresholds even in younger subjects.

Acceleration↗
PubMedDate not supplied

Permanent effects of low frequency vibration on the vestibular system.

Among 49 male workers, mean age 30 years, who had been working in conditions of extreme noise and vibration for between 6 months and 10 years vestibular disturbances could be shown (in the form of spontaneous nystagmus, lowered caloric excitability, or pathology in rotatory tests) in as high as 44.9%. The lesions were believed to have arisen in the peripheral vestibular organ as a consequence of the low frequency vibration.

Adult↗
PubMedDate not supplied

The pre- and postoperative ENG findings in clinical otosclerosis and the late hearing results.

125 patients suffering from otosclerosis underwent oto-neurological investigations preoperatively and again daily from the second to sixth day postoperatively. An abnormal ENG in the form of a spontaneous or positional nystagmus, directional preponderance or a diminished caloric reaction could be found preoperatively in 30% of the patients. No statistically significant difference between patients with or without abnormal ENG findings could be shown in the late postoperative hearing results of 3 years in a series of different types of operations. Nearly half of the patients had postoperative nystagmus. On the second day nystagmus beat towards the operated ear in 22.3% of the patients. On the sixth day there was nystagmus only in one-third of the patients and it then beat towards towards the operated ear in only 12.1% of the patients and away from the operated ear in 12.6%. No statistically significant correlation could be found between the nystagmus findings and the late hearing results after 3 years' observation in this series of different types of operation.

Adolescent↗