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Biomedical subjects

F Roujas

Publications and source records attributed to F Roujas.

11 recordsLinked to original sources
PubMed1979

[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↗
PubMed1979

[Cerebral Function Monitor (CFM) and electroencephalography (EEG). Experimental study].

This work is an attempt to connect the electro-encephalogram (EEG) and monitor of cerebral function (MCF) recordings during the experimental stimulation of the rabbit brain whether this is in the from of direct central stimulation, by stereotaxic location, or in the form of indirect stimulation via a peripheral nerve. These stimulations, performed under alfadione anaesthesia or under the neuroleptanalgesic sedative effect of chlorprothixine, are compared for every animal with the results of the control stimulations. The cardiovascular responses are recorded simultaneously. It has been found that, in simple narcosis induced by alfadione, there is much variation in the EEG recording and even more so in the MCF recording according to the quantity used and the block of responses to stimuli does not appear until there is deep anaesthesia. However, when chlorprothixine is used, the MCF trace is found to be very closely related to the trace of mild anaesthesia with accompanying block to all of the nociceptive stimulations. It would seem, therefore, if we accept the concept of levels of cerebral activity, that the use of the MCF could well open the way to a better understanding of the pure narcotic phenomena and of the neurovegetative response block to aggression.

Alfaxalone Alfadolone Mixture↗
PubMed1979

[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.

Alfaxalone Alfadolone Mixture↗
PubMed1978

[Hemodynamic effects of etomidate].

A study of the haemodynamic effects of an injection of 0.3 mg/kg of Etomidate was carried out in 11 multiple trauma patients under constant controlled ventilation. At the 3 rd minute after injection there was a slight, but significant, increase in cardiac output and in the systolic index of the left ventricle, persisting at the 20th minute. It may be concluded that the injection of a dose of 0.3 mg/kg has no harmful haemodynamic effects in this type of patient.

Adult↗
PubMed1977

[Inhalation of regurgitated fluid during anesthesia].

Since the observations of HALL in 1940 and MENDELSON in 1946 numerous clinical and experimental reports have completed our knowledge of the consequences of inhalation of fluid during anesthesia. Apart from the pulmonary signs, this syndrome includes cardiovascular signs. The course of the pulmonary disease is often unfavourable. Frequently, diagnostic problems are raised a posteriori in the light of respiratory distress and abnormal pulmonary radiological signs. It is then sometimes difficult to distinguish the role of the position on the operating table, the role of massive transfusion without adequate filtration, a state of shock, or unrecognised inhalation of fluid. The various problems are exposed. The interest of prevention and treatment is discussed.

Anesthesia, General↗
PubMed1976

[Massive facial destruction. Management, resuscitation, anesthesia, surgery (experience at the Henri-Mondor University Hospital Center)].

Anaylsing 67 cases of facial injury treated at the Henri Mondor Hospital in Créteil, the authors consider the various problems raised by these injured patients. -first aid, -methods of protection of the airway, -surgical management, -anaesthetic management and resuscitation, -problems of post-operative supervision, -methods of feeding. Owing to the localisation of these lesions, and the surgical methods, these are high risk injured patients who raise complex problems in the pre, per and post-operative periods, dominated by maintenance of the permeability of the airway. A specialised multidisciplinary team ensures coordination of the various acts.

Adult↗
PubMed1976

[Place of neuroleptics in geriatric anesthesia].

The elderly show changes in various parenchymas linked to the process of ageing. Pathological abnormalities may be added to this picture leading to physiopathology peculiar to the aged. In relation to special problems raised by this background, the advantages and disadvantages of N.L.A. are discussed. The authors refer to an experiment in the Department of Anesthetics and Intensive Care in Créteil.

Aged↗