C-PAP: differenze tra le versioni

Versione delle 19:08, 5 dic 2006

Versione delle 19:12, 5 dic 2006

Riga 8:

[[Image:Cpap-example.jpg|thumbnail|A typical CPAP machine houses the air pump in a case lined with sound-absorbing material for quieter operation. A hose carries the pressurized air to a face mask that encloses the oral and nasal airways.]]

== La macchina che effettua la PAP ==

ALe macchine PAP machinevengono isprincipalmente usedusate mainlydai bypazienti patientsnelle atloro homeabitazioni forper theil treatmenttrattamento of sleepdella [[apnea nel sonno]]. InNelle sleepapnee apneadel sonno, thela patient'svia airwayaerea becomesdel restrictedpaziente assi therestringe, patient'svia musclesvia relaxche naturallyi duringmuscoli sleepdel paziente si rilassano naturalmente durante il sonno, whichcosa che causesprovoca arousalil frombrusco sleeprisveglio. The PAP machine stops this phenomenon by delivering a stream of compressed air via a face mask and hose, splinting the airway (keeping it open under air pressure) so that unobstructed breathing becomes possible, reducing and/or preventing apneas and hypopneas.

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==Machine==

A PAP machine is used mainly by patients at home for the treatment of sleep apnea. In sleep apnea, the patient's airway becomes restricted as the patient's muscles relax naturally during sleep, which causes arousal from sleep. The PAP machine stops this phenomenon by delivering a stream of compressed air via a face mask and hose, splinting the airway (keeping it open under air pressure) so that unobstructed breathing becomes possible, reducing and/or preventing apneas and hypopneas.

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.