Hyperbaric oxygenation (HBO) was included in the therapeutic complex for 124 patients in the acute stage of ischemic stroke. The effect of HBO on the clinical course was appraised by comparing the dynamics of changes in the clinical symptoms and the frequency of complications in patients exposed to HBO with those in the control group (patients not exposed to HBO). It was established that the depth of unconsciousness and the motor and aphasic disorders decreased during a HBO session, but the effect was usually short-lived. Aggravation of the patients' condition in the first week of the disease, evidently caused by increase of cerebral edema, occurred much less frequently when HBO was included in the complex of therapeutic measures. The number of patients with regression of the neurological symptoms was practically the same with and without the use of HBO, but the regression of the neurological defects was most evident in patients exposed to HBO. HBO prevents the development of recurrent cerebral circulatory disorders in the acute stage of ischemic stroke and reduces the incidence of some complications in this period (pneumonia, pulmonary edema, thromboembolism of the pulmonary artery, etc.).

Aphasia↗

PubMedDate not supplied

[Ventricular drainage in acute intracranial hypertension in patients with severe craniocerebral injuries].

The results of intracranial pressure measurement and different methods of draining the ventricles of the brain in severe craniocerebral injury are analysed. The authors examined 30 patients who had been operated on for intracranial hematomas and contusion of the brain. The importance of intracranial pressure gradients in the genesis of dislocation processes is emphasized. It is recommended that drainage of the ventricles of the brain is performed under continuous control of the intracranial pressure in both hemispheres.

Adolescent↗

PubMedDate not supplied

[Lateralization and level of brain stem lesions according to brain stem auditory evoked potentials].

Twenty patients with severe craniocerebral injury, hemorrhagic and ischemic strokes, and tumor of the brain were examined. The generated acoustic stem response (GASR) was studied in all of them. At the time of examination all the patients were in a state of coma. Considerable deviations of the GASR from the norm were disclosed. The method makes it possible to determine the level of the brain stem lesion and to lateralize the predominant damage to the stem.

Adult↗

PubMedDate not supplied

[Repeated intracranial hemorrhages, their prevention and treatment].

The formation of recurrent hematomas was encountered in patients operated on for intracranial hematomas of traumatic and nontraumatic origin and for contusion of the brain. To prevent recurrent hemorrhages, the authors employed active aspiration of the wound canal contents by means of a three-jar aspirator or a microaspirator in the postoperatice period in 56 cases. It is noted that active aspiration of the wound discharge, continued for 2--4 days, makes it possible to avoid the formation of recurrent intracranial hematoma and to reduce resorption of the decomposition products, this improves the course of the postoperative period.

Adult↗

PubMedDate not supplied

[Reduction of recovery time of an amplifier of bioelectric potentials with an RC-circuit].

Capacitive electrodes produce low-frequency distortions of signals in the course of electrophysiologic measurements. One of the possible ways to compensate low-frequency noise consists in connecting a compensating RC-circuit across an amplifier output. As a result, a recovery time is reduced under interference as compared to an amplifier having similar frequency response yet in the absence of the compensating circuit provided amplifier signals are limited. Presented in the paper relationships demonstrate applicable limits of the given compensating method. The results may be used in designing ultralow-frequency amplifiers with the isolating RC-circuit in the input.

Electric Conductivity↗