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Biomedical subjects

Iu A Lebedev

Publications and source records attributed to Iu A Lebedev.

8 recordsLinked to original sources
PubMed1999

[Trans-meatal hyperbaric aerosol therapy some forms of otitis media chronica].

80 patients with otitis media chronica were effectively treated with hyperbaric aerosol. The aerosol therapy was performed with the help of a special device the design of which was based on that of made in Russia ultrasonic inhalator IUP-OIM intended for aerosol therapy of the upper respiratory tracts. The inhalator was furnished with a mini-compressor for pumping aerosol in the middle ear with maximal permissible pressure of hyperbaric aerosol delivery 10 kPa. Such intratympanic pressure rules out the risk of ear barotrauma in the form of the cochlear window membrane rupture being at the same time sufficient for aerosol delivery into the nasopharynx through the mesotympanic defect of the tympanic membrane and the auditory tube, in secretory otitis--via previously made tympanostoma. The method provides also normobaric delivery of aerosol into the ear and therefore can be applied after tympanoplastic operations without the risk of the transplant dislocation.

Administration, Topical↗
PubMed1997

[Criteria of the evaluation of tubal function in patients with secretory otitis media].

Tubular function was assessed in patients with secretory otitis media before and after surgery (an original version of anterior tympanostomy). Preoperative tubular function was measured by impedance tympanometry. After tympanostoma was placed the acoustic tube was subjected to direct manometry. Perioperative measurements were made for tube patency for liquid (hydrocortisone). The tests of pressure adjustment implied routine spirit manometry and updated impedancemetry. Technical specifications of modern impedance meters met the criteria of clinical fitness for post-tympanostomy patients. The criteria of assessment and correlating quantitative values of the draining and ventilation capacities of the acoustic tube were determined. This was the basis for an original classification of tubular function grades. It was established that in secretory otitis media drainage dysfunction of the acoustic tube was registered in two thirds of the patients (66%), ventilatory dysfunction occurred in 100% of patients. There was a correlation between these functions. This fact was used for design of a simple screening variant of ear manometry i.e. registration of the threshold of acoustic tube passive opening. Screening manometry is convenient for following up postoperative changes in the tubular function and defining duration of carrying tympanostomy in secretory otitis.

Acoustic Impedance Tests↗
PubMedDate not supplied

[A medical terminal based on a microcomputer].

Herein are described purpose and field of application of the medical DVK-2M microcomputer based terminal. This system will be used to accumulate, preliminary process and feed the medico-physiological information to the consulting-diagnostic centre. Were studied the channel data feed control protocol and protective algorithm of the transferred information including error correction. Information on the medical network structure is proposed as well.

Computer Systems↗
PubMedDate not supplied

[Clinico-audiological characteristics of secretory otitis media in children].

87 children aged 2-14 years with hypoacusis caused by secretory otitis media were examined and treated surgically. The diagnosis was made basing on the data obtained at otomicroscopy and tympanometry which in combination with tonal and speech hearing examinations provided quantitation and staging of the middle ear affection. It is suggested that morphologically and audiologically secretory otitis media undergoes four clinical stages: pre-exudative, primarily serous exudative, primarily mucous exudative, tympanosclerotic.

Acoustic Impedance Tests↗