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Biomedical subjects

S E Snashall

Publications and source records attributed to S E Snashall.

6 recordsLinked to original sources
PubMed1990

Imbalance and chronic secretory otitis media in children: effect of myringotomy and insertion of ventilation tubes on body sway.

We studied balance in 34 children with chronic secretory otitis media and compared them with 34 age- and sex-matched control children between the ages of 3 and 5 years. In addition to history and examination, objective measurements were obtained by use of a fixed force plate body sway platform in both the control group and the group with chronic secretory otitis media. We took measurements in both groups at an interval of 4 months to ensure that any improvement in body sway could not be attributed to normal maturation. Eight parameters of body sway were compared, including three new parameters not described elsewhere (mean squared velocity, the number of intersections, and velocity moment). Our study showed that balance is significantly worse in children with chronic secretory otitis media compared to a control group. Furthermore, the increased body sway of children with chronic secretory otitis media was returned to the normal range by myringotomy and insertion of ventilation tubes.

Child, Preschool↗
PubMed1985

Deafness in children.

Early detection of deafness is important for rehabilitation and diagnosis. In spite of prompt treatment the effects of deafness on language and learning can be devastating. The scope of hearing aids is advancing all the time, but the severely deaf child will never be able to obtain anything but rudimentary auditory input. As deaf children and their parents become more aware of the risks of genetic deafness, an aetiology should be established wherever possible.

Audiometry↗
PubMed1983

Vestibular function tests in children.

Vestibular function tests were performed on a series of 57 children between the ages of 1 and 16 years. Inattention and immaturity of eye movement control created difficulties in the analysis of the electronystagmography traces in some instances. With the eyes closed, spontaneous and positional nystagmus occurred in 20% of asymptomatic children and this was thought to be physiological. Changes in external ear pressure (fistula test) enhanced this spontaneous nystagmus. Smooth pursuit ataxia and optokinetic abnormalities were common in the children with reading disabilities and those with congenital deafness, and were thought to be soft neurological signs of brainstem dysfunction. The torsion swing chair test was acceptable and gave easily readable responses. Caloric abnormalities were very common in children with reading disabilities and provided useful information in those with congenital and acquired disorders of hearing and balance. It was concluded that normal data were required for children of all ages in order to improve our understanding of electronystagmography in children.

Adolescent↗
PubMed1977

Békésy audiometry and tone and reflex decay tests in diabetics.

The responses of nine diabetics (without substantial hearing loss) to Békésy audiometry and tone and reflex decay tests at 250, 1,000, 4,000 and 8,000 Hz were determined. Excessive tone decay was found at 8,000 Hz in two subjects. This was found to be significant when compared with a normal group of 19 subjects tested at this frequency. Two diabetics had a 25 to 30-dB separation of the Békésy tracing at 8,000 Hz. All other findings were normal. It was concluded that excessive adaptation at threshold is to be expected at 8,000 Hz in diabetic subjects.

Adolescent↗