PubMed · 9097653
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H Taiji. 1997. [Impedance audiometry].. https://pubmed.ncbi.nlm.nih.gov/9097653/
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A number of papers present the research on hearing disturbances in the course of diabetes mellitus. Some authors report the damage of inner ear cells, whereas others maintain that it is located in the retrocochlear part of the hearing pathway. The objective of the paper was to find the location of the auditory pathway disturbances in children suffering from diabetes mellitus. The analysis concerns 37 insulin treated children aged 6-18 years. The following audiometric methods were applied: pure-tone audiometry, impedance audiometry as well as auditory brainstem response (ABR). We observed conduction disturbances within the stem in ABR, in the children without hearing loss in pure-tone audiometry.
One thousand one hundred and sixty-four patients formed the pool of patients from which we intended to recruit children to a controlled trial evaluating the efficacy of amoxicillin-clavulanate and penicillin-V in the treatment of secretory otitis media (SOM). Only 360 patients ended up to be evaluated, consisting only 30% of the primarily involved patients. The spontaneous improvement of the tympanometric condition was the major course of pre-trial dropouts. The demographic composition of included and excluded patients did not differ, as one might have expected. Very little has previously been published about this great number of excluded patients even though other authors must have had the same experience. It is concluded that a 3-month duration of SOM, evaluated by tympanometry by the investigators, is required as a minimum to qualify for entering a trial evaluating SOM.
To prevent barotitis during descent in aviation, the ears have to be cleared several times by performing the Valsalva's manoeuvre. The manoeuvre is difficult for children to perform, and they are therefore at high risk of developing barotitis. The treatment of barotitis is either inflation by a Politzer balloon or myringotomy. An alternative treatment is autoinflation using the Otovent. This prophylaxis/treatment can be performed by the child with assistance from its parents as soon as or preferably before the descent has started. The prevalence of barotitis amongst 45 children and 49 adults in transit was found to be highest in children, 28%, compared with adults, 10%. Only 6% of the children with negative middle ear pressure after flight managed a successful Valsalva manoeuvre, whereas 33% could normalise the middle ear pressure by inflating the Otovent. In conclusion we recommend autoinflation using the Otovent set by children and adults who have problems clearing their ears during flight.