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Mandatory minute volume. A new concept in weaning from mechanical ventilation. 1977

A M Hewlett, and A S Platt, and V G Terry

The new concept of mandatory minute volume (MMV) is described. The system provides a preset minute volume to the patient, who breathes spontaneously from it as much as he is able, the remainder being delivered to him via a ventilator. The necessary apparatus has been constructed and has the additional facility of PEEP and/or CPAP up to a level of 15 cmH2O pressure. With possible exceptions, the apparatus allows simpler and more direct control over the patient's PaCO2 than with the IMV system and it ensures, without adjustment, a constant minute volume of fresh gas breathed by the patient, despite minute-to-minute changes in his ability to breathe. Use of the system in conjunction with two commonly used ventilators is described. It should not be difficult to build the facility for MMV into new versions of artificial ventilators.

UI MeSH Term Description Entries
D007384 Intermittent Positive-Pressure Breathing Application of positive pressure to the inspiratory phase of spontaneous respiration. IPPB,Inspiratory Positive-Pressure Breathing,Intermittent Positive Pressure Breathing (IPPB),Breathing, Inspiratory Positive-Pressure,Breathing, Intermittent Positive-Pressure,Inspiratory Positive Pressure Breathing,Intermittent Positive Pressure Breathing,Positive-Pressure Breathing, Inspiratory,Positive-Pressure Breathing, Intermittent
D012121 Respiration, Artificial Any method of artificial breathing that employs mechanical or non-mechanical means to force the air into and out of the lungs. Artificial respiration or ventilation is used in individuals who have stopped breathing or have RESPIRATORY INSUFFICIENCY to increase their intake of oxygen (O2) and excretion of carbon dioxide (CO2). Ventilation, Mechanical,Mechanical Ventilation,Artificial Respiration,Artificial Respirations,Mechanical Ventilations,Respirations, Artificial,Ventilations, Mechanical
D012122 Ventilators, Mechanical Mechanical devices used to produce or assist pulmonary ventilation. Mechanical Ventilator,Mechanical Ventilators,Respirators,Ventilators, Pulmonary,Pulmonary Ventilator,Pulmonary Ventilators,Ventilator, Pulmonary,Ventilators,Respirator,Ventilator,Ventilator, Mechanical
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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