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Biomedical subjects

K Karbowski

Publications and source records attributed to K Karbowski.

97 records · Page 6Linked to original sources
PubMedDate not supplied

[EEG findings in 40-60 year old subjects].

Electroencephalographic standard examinations were performed in 170 selected healthy persons aged between 40 and 60 years (average age 49 years). "Ideal Normal Traces" with a regular background Alpha-Activity were registered with only 39 test persons (22.9%). They showed an average frequency of 9.9 c/s and extreme values of 8.6--11.2 c/s. In 35 persons (20.5%) the only outstanding feature was merely a marked discontinuity and a considerable frequency lability of background activity, mostly combined with low voltage and a noticeable beta-waves component. In 17 persons (10%) a diffused increase of the Theta activity was found; the average age of this group was slightly higher (52.9 years) than in the remaining groups. Strongly marked paroxysmal-dysrythmic sequences were noted in 21 Test Persons (12.4%); these were in none of the cases clear sharp waves. In 58 Persons (34.2%) the essentiel changes were observed in the temporal regions being of a slighter nature in 46 persons (27.1%), and in 12 persons (7.1%) of a stronger character, lefthand significantly more frequent than righthand.

Adult↗
PubMedDate not supplied

[Periodic EEG discharges of stereotyped morphology].

Clinical course of disease and results of EEG examinations of 6 patients with severe brain disturbances of various aetiology provided grounds for discussion on the phenomenon of periodic stereotyped EEG discharges (PSD) which is of considerable diagnostic value in some cases. The variability in appearance of these discharges, in their form and duration of intervals between them are stressed--the last parameter varied in own material from 0.5 to 8 sec. The appearance of PSD may indicate increased convulsive excitability of the cortical and subcortical structures of the gray matter. The prognostic value of PSD was not always the same and it could be established only basing upon a comparison of EEG findings during successive examinations.

Adolescent↗