Biomedical subjects
Publications and source records attributed to D L Muratov.
Current methods of diagnosis of chronic hyperplastic laryngitis (CHL) are analysed. Etiology, clinical picture, classification of CHL, laryngeal cancer morbidity in Russia, malignant transformation of CHL, methods of additional device and laboratory examination are reviewed. Morphospectrophotometry is proposed for differential diagnosis between CHL and laryngeal cancer.
Audiological examination including routine methods, tonal threshold audiometry (10000-20000 Hz frequency range), noise resistance of the acoustic analyzer in contralateral masking with noises of different intensity has been made to identify early subclinical neurosensory hypoacusis in 96 patients with acute and chronic inflammation of the middle ear aged 17-75 years. 140 subjects with normal hearing served control. The findings show the ability of such tests to assess noise resistance of the acoustic analyzer and tonal threshold audiometry in wide range of frequencies to detect latent neurosensory hypoacusis which is correctable if discovered early.
The authors review acoustic tests available for practitioners and sufficient for early diagnosis of hypoacusis. Low-frequency tuning--forks (C32, C64) are essential for detection of early conductive hypoacusis, whereas tests for acoustic sensitivity in high-frequency range (10-20 kHz) and in ultrasound band help differentiate neurosensory hypoacusis and otosclerosis. Registration of acoustic evoked potentials, electrocochleography are effective but not easy to perform techniques provided by only large audiological centers. Impedancemetry is more simple and permits more accurate diagnosis of the origin of neurosensory and mixed hypoacusis, it can be used in mass screenings, especially in children. Medical institutions furnished with currently available "battery of tests" can solve the problem of early diagnosis of acoustic defects.
The authors review variants of therapeutic policy in paratonsillitis. They think it necessary to perform in paratonsillar abscess abscess-tonsillectomy on the affected and tonsillectomy on the collateral side. Follow-up results are presented for cases of paratonsillitis treated in the ENT clinic of the Russian Medical University throughout 1990-1992.