Biomedical subjects
Publications and source records attributed to P Knudstrup.
Lightning can transmit energy by way of the telephone network to the middle and the inner ear and thus cause pronounced injuries. In the patient mentioned here, the middle ear remained intact, while the inner ear was the seat of widespread damage combined with vascular rupture, the latter causing the formation of an intracranial haematoma. This was originally interpreted wrongly as a neoplasm.
Explore the source record for details and available documents.
Repeated tympanometric screening of a regionally defined population of 3-year-old children defined a group of 42 children with middle ear disease which had persisted for at least 6 months. These children were treated by either myringotomy with adenoidectomy or myringotomy without adenoidectomy decided by random allocation. Postoperative observation during 6 months failed to disclose any difference in middle ear status between the two groups.
Paracentesis was performed on 46 three- to four-year-old children out of all 523 three-year-olds in a geographically defined area, because these 46 children had persistently showed abnormal tympanograms over a 6-month period. The findings were correlated to the parameters middle ear pressure, absolute compliance, absolute gradient, and relative gradient. As regards the state of effusion in the middle ear, all these parameters--except for the middle ear pressure--showed a high predictive value. The significance of the findings in the tympanometric diagnosis of middle ear disease in the younger age groups is outlined.