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Biomedical subjects

V I Fedoseev

Publications and source records attributed to V I Fedoseev.

4 recordsLinked to original sources
PubMed2005

[The role of a cutaneous cut in safe covering of a receiver-stimulator in cochlear implantation].

The aim of the study was to compare efficacy of cutaneous cuts of various length in placement of a receiver-stimulator behind the ear. Conditions for ligature fixation of the cochlear implant receiver-stimulator as well as the state of soft tissues at the site of the intervention in the postoperative period are analysed. Cochlear implantation was made in 55 patients using implants CI 22M, 24M, Combi 40+. Group 1 included 38 patients (21 children aged 1 year 9 months to 14 years, mean age 7.07 +/- 0.9 years, and 17 adults) operated with an U-cut in the endaural variant, 17 patients (age 1 year 8 months to 15 years, mean age 7.06 +/- 1.2 years) operated with a vertical cut in addition of original subcutaneous flaps entered group 2. The number of complications related to soft tissues and postoperative suture in children of group 1 was significantly higher than in group 2 (p<0.05, t=2.0).

Acoustic Stimulation↗
PubMed2003

[Comparative analysis of approaches to surgical cochlear implantation in adults and children].

The aim of a surgical stage of cochlear implantation (CI) is to place the implanted part of the device in the temporal space. Criteria of the decision on the side of the intervention and components of it in CI are outlined. To help selection of an optimal variant of surgical intervention in CI at the initial stage, the techniques of the implanted parts insertion are reviewed. Types of skin cuts, approaches to the cochlea, location of cochleostoma, methods of fixing the stimulator are described. The importance of intraoperative registration of the musculus stapedius reflex and action potential of the acoustic nerve in response to cochlear electrostimulation is emphasized. Basing on the experience of treating 38 deaf patients, the author states that for effective performance of the operation it is desirable to conduct reverse U-cut of the skin, make posterior tympanostoma, cochleostoma in the basic cochlear margin, suturing of the cut with intracutaneous suture.

Adolescent↗
PubMedDate not supplied

[Computed tomography in the evaluation of cochlear structural features in cochlear implantation].

Temporal bone computed tomographic scans were studied in 136 deaf patients of different age and sex, including 56 patients (39 children and 17 adults) rehabilitated with cochlear implantation (CI). The mean values of the cochlear parameters that are important for the results of a surgical CI stage, namely: the diameter of the cochlear base (DCB), the diameter of the basal helix, the height of the cochlea, the angle between the cochlear base and the promontorial wall, were calculated. These parameters were compared in different age groups. A correlation was determined for each of the studied parameters and for the depth of intracochlear insertion of electrodes. There was a significant correlation between DCB and the depth of insertion of the electrodes of CI22M and CI24M cochlear implants. DBC at which the active part of the electrode chain of an implant could be significantly more frequently placed in the tympanic scala of the cochlea was estimated.

Adolescent↗