Summary
A streamlined modification of the combined Mapleson D & E systems has been described. The main advantages of this circuit are that it is light in weight, adaptable to both adult and paediatric anaesthesia, allows complete airway control at all times, and permits the institution of positive pressure ventilation, The circuit is easily adaptable for pollution control.
A clinical study of the circuit was carried out with fresh gas inflows of 5.5 L/min and 7 L/min. PaCO2 was within an acceptable range with either spontaneous or controlled ventilation, indicating adequate carbon dioxide elimination at these inflow rates.
The circuit has been evaluated in over 500 cases and was found satisfactory for all types of surgery. It was especially advantageous in surgery of the head and neck.
Résumé
Nous avons décrit une modification des systèmes combinés de ventilation anesthésique, Mapleson D et E. Les principaux avantages de ce circuit sont qu’il est léger, applicable aussi bien aux adultes qu’aux enfants, permettant, en tout temps, un contrôle entier des voies respiratoires et ľinstallation ďune ventilation à pression positive. On peut facilement adapter le circuit aux mesures anti-pollution.
Nous avons fait une étude clinique de ce circuit en employant un apport de gaz frais de 5.5 litres et de 7 litres par minute, La PaCO2 est demeurée dans les limites acceptables aussi bien avec la ventilation spontanée qu’avec la ventilation contrôlée, démontrant que, à de tels débits, ľélimination du CO2 était adéquate.
Nous avons étudié ce circuit chez plus de 500 malades, et il s’est avéré satisfaisant pour toutes les sortes de chirurgie. C’est dans la chirurgie de la tête et du cou qu’il nous a semblé plus avantageux.
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Bain, J.A., Spoerel, W.E. A streamlined anaesthetic system. Canad. Anaesth. Soc. J. 19, 426–435 (1972). https://doi.org/10.1007/BF03005967
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DOI: https://doi.org/10.1007/BF03005967