C-PAP: differenze tra le versioni
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== La macchina che effettua la PAP ==
Le macchine PAP vengono principalmente usate dai pazienti nelle loro abitazioni per il trattamento della [[apnea nel sonno]]. Nelle apnee del sonno, la via aerea del paziente si restringe, via via che i muscoli del paziente si rilassano naturalmente durante il sonno, cosa che provoca il brusco risveglio.
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The PAP machine blows air at a prescribed pressure (also called the titrated pressure). The necessary pressure is usually determined by a physician after review of a study supervised by a [[sleep technician]] during an overnight study in a sleep laboratory. The titrated pressure is the pressure of air at which most (if not all) apneas and hypopneas have been prevented, and it is usually measured in centimetres of water (cm/H20). A typical PAP machine can deliver pressures between 4 and 20 cm; more specialized units can deliver pressures up to 25 or 30 cm.
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When compared to ventilation via an endotracheal tube, CPAP seems to result in less [[barotrauma]] (although it by no means eliminates the risk of barotrauma) and in the extreme preterm, CPAP reduces the risk of developing [[Bronchopulmonary dysplasia]] when compared to mechanical ventilation via an endotrachea tube.
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== Fonti ==
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