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I V Tsapenko

Publications and source records attributed to I V Tsapenko.

20 records · Page 2Linked to original sources

[Restoration of retinal functional activity after surgical treatment of its detachment in patients with different eyeball injuries].

Nineteen case histories are analyzed: 1) 6 patients with postperforative detachment of the retina; 2) 8 patients with detachment of the retina after a penetrating wound with introduction of a foreign body; and 3) 6 patients with postcontusion detachment. The restoration of the alpha and beta ERG waves depended on the type of injury: after penetrating wounds, the changes in the retinal electrogenesis were the most manifest during the initial and early postoperative period; foreign bodies aggravated and decelerated the regeneration of visual function, contusion trauma of the eye is the most unfavorable factor complicating the restoration of visual functions; involvement of the paired (intact) eye is typical, as is changed functional reaction of the retina in injuries of all types.

Electroretinography↗

[Impairment of visual pathway function in right hemisphere in patients with arteriovenous malformation of the parietooccipital area of left hemisphere].

Marked arteriovenous malformation in the left parietooccipital area manifested only by symptoms of associative migraine involving changes of visual fields indicative of impaired functions of symmetrical compartments of the other brain hemisphere. Visual evoked potentials were changed in this patient because of dysfunction of both hemispheres and largely because of disorders in brain structures symmetrical to the site of arteriovenous malformation. This can be regarded as a manifestation of the so-called stealing phenomenon, when blood supply to one brain compartment is decreased because of excessive blood delivery to other regions of the brain. The results permit us to hypothesize regulation of blood supply to symmetrical compartments of brain hemispheres.

Cerebral Angiography↗