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Biomedical subjects

P Hrouda

Publications and source records attributed to P Hrouda.

10 recordsLinked to original sources

[Correlations between alcohol ingestion, blood alcohol levels and behavior problems].

Behaviour changes in 20 young adults subjected to an alcohol tolerance test finding a blood alcohol level of the order of 80 mg.l-1 were assessed using a series of tests exploring certain qualities required in a vehicle driver, in particular capacity for focalisation of attention, possibilities of acquisition of new information, short-term memory with a visual support, the quality of motor reflexes and conscious level as involved in postural regulation. Results showed an absence of correlation between the amount of alcohol ingested (0.5 g.kg-1 of alcohol in the form of commercial Vodka) and resultant blood alcohol levels measured at the 30 th minute, or at the 102 minute after ingestion. However, they above all showed that there was virtually no correlation between blood alcohol level and behavioural modifications. In some instances, such modifications went even in the direction of an improvement, notably in terms of focalisation of attention in the majority of cases and postural tonic activity in some cases. However, certain individuals with "legal" blood alcohol levels showed evidence of behaviour which could be dangerous at the wheel of a car.

Adult

[The Cerebral Function Monitor in intensive care].

The Monitor of Cerebral Function, the first apparatus designed for continual cerebral monitoring for prolonged periods, is used frequently as an aid during revival. Due to its ease of operation and its straight-forward displaying of the data, it can supply continual information on the state of cerebral activity. Wem used it in various situations where there was a risk of cerebral circulatory insufficiency. Besides this role in the prevention of emergency, we used the M.C.F. as a diagnostic tool in the assessment of brain death. An early confirmation of the presence of stage IV allows of a more efficient removal and grafting of the kidneys. Finally, we also use the M.C.F. in the study of abnormalities of behaviour in patients whose revival to consciousness is slow.

Brain

[The Cerebral Function Monitor. Description, functioning and interpretation principles].

The Monitor of Cerebral Function enables continuous monitoring of the cerebral electrical activity and this over long periods due to the slow recording speeds. The cerebral electrical signals picked up by the electrodes attached to the scalp are registered in the form of a curve which fluctuates to a greater or lesser extent depending on the recording speed. The examination of the height of the curve with respect to zero and its amplitude indicates the voltage of the cerebral activity and yields information regarding polymorphism. It is thus possible to monitor variations in cerebral activity over a prolonged period during anaesthesia as well as during the revival phase with the Monitor of Cerebral Function, the electroencephalogram being reserved as an aid to precise diagnosis and for localization and close scruting of the anomalies.

Brain

[Cerebral Function Monitor and anesthesia].

The Monitor of Cerebral Function was employed in anaesthesia for a double purpose: as a monitor of anaesthesia, of possible complications and of overdosage that might lead to cerebral damage; a bringing up to date of the comparative data on the various anaesthetic protocols. In this manner, we were able to demonstrate the during anaesthesia application of a cerebral monitor that is well designed and easy to handle. A comparative study of hypnotic anaesthetics and those that induce neuroleptanalgesia demonstrated that, in certain cases, the same anaesthetic stability is achieved when there is an early appearance of the electric silences as when the cerebral electrical activity is only slightly modified.

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