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Biomedical subjects

V V Lebedev

Publications and source records attributed to V V Lebedev.

At least 73 records · Page 4Linked to original sources

[Clinico-anatomic variants of the course of cerebral hemisphere contusions].

An analysis of 237 cases of brain hemisphere contusions verified at operation or on autopsy has made if possible to distinguish between three variants of the traumatic disease which corresponded to the three pathoanatomical forms of the contusion. Convexital contusions (pathoanatomically-chiefly cortical or cortico-subcortical) ran the most favourable course and were characterized by distinct focal symptoms prevailing over slight, in most cases, general cerebral disturbances. Polarobasal contusions (anatomically - extensive or massive, i.e. penetrating down to subcortical ganglia or the lateral ventricles) ran a grave course and were characterized by progressing focal hemispheric symptoms in the presence of undulating development of general cerebral disturbances. Diffuse contusions of the brain hemispheres (anatomically small foci of destruction and hemorrhages in the cortex and the paraventricular divisions of the white matter) were characterized by prevalence of marked general cerebral disturbances over slight scattered focal symptoms.

Adult↗

[Effect of dehydration therapy on intracranial pressure and local cerebral blood flow in hemorrhagic stroke and cranio-cerebral injuries].

The degree and duration of the effect of dehydration therapy on intracerebral pressure and local cerebral blood flow were studied. The record was taken by means of an original combined sensor implanted into the brain tissue during neurosurgical operations in patients with acute disorder of cerebral circulation of the hemorrhagic type and severe craniocerebral trauma. Urea, mannitol, and glucose were applied as the dehydration agents. They were infused intravenously with due account for the initial values of intracerebral and arterial pressure.

Brain Edema↗

[Brain stem lesions in acute cranio-cerebral injury].

The authors analyzed the results of clinical and angiographical studies of 120 patients with acute severe brain traumas. In 76 cases brain stem lesions were diagnosed during life and in 22 cases diagnosed as a primary lesion. The postmortem data confirmed primary lesion of the stem structures only in 11 cases. The conclusion made by clinicians of the primary stem lesion was based mainly on an impetuously developing picture of stem disturbances during the first hours following trauma. The angiographical data demonstrated that each type of stem lesion in an acute brain trauma has a certain angiographic symptomatology. For a more correct diagnosis the authors recommend to perform cerebral angiography even in a typical clinical picture of primary stem lesion.

Acute Disease↗

[Functional state of the kidneys in patients with acute cerebrovascular disorders].

A clinico-laboratorial study of the functional state of the kidneys in 54 patients with severe hemorrhagical and ischemic brain strokes established intensified glomerular filtration in a relatively preserved water excretional, concentrational, Na and K uretical kidney function. The detected azotemia is considered as a result of excessive production of residual blood over the increased function of the kidneys to their elimination. Classical acute kidney insufficiency developed in 3 patients with severe disturbances of hemocirculation.

Acute Disease↗

[Clinical and echoencephalographic diagnosis of lesions of the frontal lobe in the acute period of severe cranio-cerebral injury].

An analysis of clinical and echoencephalographic studies in 100 patients permitted the author to detect a dependency between the clinical signs of frontal lobe lesions and the mechanisms of the inflicted trauma. A clarification of the character of the traumatic injury of the frontal lobe (contusion or contusion-crush) is very important inasmuch as it determines the medical tactics in relation to treatment. According to the data of the author, patients with contusions of the frontal lobes require conservative treatment, while in traumatical crushing of the frontal lobes surgical treatment may be frequently necessary.

Adolescent↗

[The clinical picture of acute epidural hematoma of traumatic origin].

An analysis of 100 observations permitted the authors to conclude that the basis of the clinical picture of acute epidural hematoma was the syndrome of intercranial hypertension manifesting itself in growing disturbances of consciousness, headaches, vomiting, bradycardia. The appearance of local neurological symptoms gives a possibility for a physician to orientate quickly in the pathological process localization. "A lucid period" and the initial syndrome of the acute brain dislocation often revealed in the manifestation of mydriase are typical of the clinical picture of epidural hematoma.

Acute Disease↗