Biomedical subjects

M Pichanic

Publications and source records attributed to M Pichanic.

At least 19 recordsLinked to original sources

PubMed1990

[Topographic relations in the combined approach tympanoplasty technic].

In a topographic investigation the authors assessed on 20 cadaverous temporal bones the relationship between the size of the enlarged recessus facialis and the dimensions of the mastoid process as well as topographic possibilities of a lower medial communication between the trepanation cavity and sinus tympani. Only in two instances the maximal and minimal dimensions of the recessus facialis corresponded to the maximal and minimal dimensions of the mastoid process resp. The possibility to establish a lower medial communication between the trepanation and tympanal cavity depended on the size of the tip of the mastoid process and on the position of the sigmoid sinus and bulbus jugularis resp. in relation to the facial nerve.

Ear, Middle↗

PubMed1989

[The acoustic internal meatus--tomographic and autopsy findings].

The authors compared the autopsy and tomographic findings of meatus acusticus int. In addition to the dimensions of meatus acusticus int. the authors also evaluated its shape and measured the distance between fossa jugularis and lower wall of fundus. The mean values of six parameters observed and measured on the cadavers and the tomograms differed in the following way: three parameters up to 0.5 mm and three by 0.8 mm, 1.1 mm and 1.2 mm, respectively. In eight patients the tomograms were evaluated as pathological; these were described in detail and put into relation to CT, CT-cisternomeatographic or the operation finding.

Humans↗

PubMed1989

[Oxygen therapy in sudden perceptual hearing disorders].

The authors treated patients with sudden perception hearing disorders during the first five days in hospital by oxygenation using a respiration circle type D according to Mepleson's classification. Then oxygenation treatment was combined with medicamentous treatment (Rheodextran, Vinpocetinum and vitamins). After five days, when only an oxygenation mixture of 5% CO2 + 95% O2 was administered, the authors observed improvement or normalization of hearing in 19 of 25 patients. After termination of comprehensive treatment further improvement took place in 14 patients. The same audiometric results were recorded after a one year follow-up in all patients but one. Despite the great capacity of spontaneous recovery, which was described in sudden perception disorder, the authors assume, based on their results, that their method of oxygenation is effective either when applied alone or as part of comprehensive treatment.

Adolescent↗

PubMed1989

[Personal experience with the difference limen in interrupted tones in differentiating between sensorineural and supracochlear hearing disorders].

The authors assessed the differences of the limen of interrupted sounds (sounds which last 500 ms, between which there are intervals of 200 ms) in healthy subjects and in patients with sensory neural and supracochlear hearing disorders. Essentially the results are consistent with those of Schorn and Fastl (2) and they suggest that patients with supracochlear hearing disorders are able to differentiate only much greater differences in intensity (more than 4 dB) between sounds, as compared with patients with sensory neural hearing disorders.

Audiometry↗

PubMed1988