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• W2041534712 abstract "In the course of numerous polygraphic recordings made on normal subjects and patients with sleep disturbances (Pickwickian syndrome, primary alveolar hypoventilation, restless legs syndrome and nocturnal myoclonus) we observed several vegetative and somatic phenomena which tended to oscillate or repeat themselves periodically every 20–30 sec during sleep, and especially during light sleep. The functional oscillations of this kind could involve the systemic arterial pressure, the pulmonary arterial pressure, cardiac rate, arteriolar tone, breathing, peripheral motoneurone excitability and the level of consciousness, both individually and simultaneously. It has been known for some time that systemic arterial pressure can present periodic oscillations at about every 30 sec (Meyer waves), especially in emergency situations; it has also been demonstrated experimentally that Mayer waves can be associated with periodic breathing and with cyclical oscillations of reticular tone, of pupil diameter and of the excitability of spinal motoneurones. During sleep, the physiological or pathophysiological situations which are the basis of these oscillatory phenomena could be represented by variations in pH, PCO2, and PO2 consequent on arterial hypotension or alveolar hypoventilation. Au cours de nombreux enregistrements polygraphiques effectués chez des sujets normaux et chez des malades présentant des troubles du sommeil (syndrome de Pickwick, hypoventilation alvéolaire primaire, syndrome des jambes sans repos et myoclonus nocturne), nous avons observé plusieurs phénomènes végétatifs et somatiques qui tendent à osciller ou à se répéter de façon périodique toutes les 20à 30 sec au cours du sommeil et spécialement au cours du sommeil léger. Les oscillations fonctionnelles de ce type peuvent impliquer soit isolément, soit simultanément, la pression artérielle systémique, la pression artérielle pulmonaire, le rythme cardiaque, le tonus artériolaire, la respiration, l'excitabilité des motoneurones périphériques et le niveau de vigilance. On sait depuis longtemps que la pression artérielle systémique peut présenter des oscillations périodiques toutes les 30 sec environ (ondes de Sigmund Mayer), spćiaalement dans des situations d'urgence; il a été également démontré expérimentalement que les ondes de Mayer peuvent s'associer á une respiration périodique et à des oscillations cycliques du tonus réticulaire, du diamétre pupillaire et de l'excitabilité des motoneurones spinaux. Au cours du sommeil, les situations physiologiques ou physiopathologiques qui sont à la base de ces phénomènes oscillatoires peuvent être représentées par les variations du pH, du PCO2 et du PO2 dues à l'hypotension artérielle ou à l'hypoventilation alvéolaire." @default.
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• W2041534712 date "1972-06-01" @default.
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• W2041534712 title "Some periodic phenomena arising during drowsiness and sleep in man" @default.
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• W2041534712 doi "https://doi.org/10.1016/0013-4694(72)90106-x" @default.
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