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Biomedical subjects

N V Lebedeva

Publications and source records attributed to N V Lebedeva.

At least 55 records · Page 3Linked to original sources

[Clinical polymorphism of circumscribed intracerebral hematomas].

Using clinical and a series of additional methods of examination, including computer-aided tomography, the authors studied 46 cases of limited (without breakthrough of blood into the CSF) intracerebral hematomas (LIH) which constituted 22% of the total number of the examined patients with brain hemorrhages. It has been established that in the majority of the cases of LIH (87%) the diagnosis of the stroke nature was difficult to make without computer-aided tomography. It was shown that the characteristics of the clinical picture and course of LIH were determined by the absence of breakthrough of blood into the CSF system, a relatively small size of hematoma, a mild degree of dislocational manifestations and their slow evolution. Three main variants of the clinical course of LIH were identified. The course of the disorder was usually favourable; the lethal outcome occurred in only 15.2% of the cases. The authors draw attention to the expediency of conducting computerized tomography over time and to the necessity of taking into account the status of the homeostasis system in the treatment of such patients.

Aged↗

[Morphological properties of erythrocytes and their deformability in cerebral circulatory disorders in patients with arterial hypertension].

Using a scanning electron microscope, the authors examined changes in the shape of erythrocytes (E) in 85 patients with impaired cerebral circulation (ICC). Parallelly 48 patients were studied for the deformity and osmotic resistance of E. The control group consisted of 17 healthy individuals. The data obtained suggest significant alterations in the shape and functional properties of E in patients with ICC which correlated with parameters of blood viscosity and E aggregation. The degree of changes was determined by the duration of the underlying vascular disease, recurrent episodes of ICC and their severity.

Blood Viscosity↗

[Feasibility of ultrasonic dopplerography in determination of the pathogenesis of transient cerebral circulatory disorders].

For specifying the pathogenesis of transient cerebrovascular disorders and the importance of occlusive lesions in the major cerebral vessels in this form of cerebrovascular pathology a new simple and safe method--ultrasonic dopplerography--was used in 87 patients. Subsequent cerebral angiography showed that the comparative reliability of this method in occlusions of the carotid and vertebral arteries reached 92.3%, and in their stenoses 76.6%. This makes it possible to recommend the ultrasonic dopplerography method for broad use in the conditions of both polyclinics and hospitals for examining patients with signs of transient cerebrovascular insufficiency.

Adult↗

[Combined infarct of the brain in the basin of the middle and anterior cerebral arteries].

The report contains a description of the morphology, pathogenesis and clinical picture of combined brain infarctions in 16 cases developing in the basin of the middle and anterior arteries. The mechanisms of their development are discussed: thrombosis, thrombembolia of the middle and anterior brain arteries and their branches, pressure of the cortical branches in the anterior brain artery by the lower edge of the large crescentic process of the dura mater.

Adult↗