Assisted ventilation. 5. Non-invasive and domiciliary ventilation: negative pressure techniques.

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Assisted ventilation. 5. Non-invasive and domiciliary ventilation: negative pressure techniques.

Historical development Negative pressure ventilation first came into use during the second half of the nineteenth century. It was recognised that air would be drawn into the lungs through the mouth and nose if a subatmospheric pressure could be developed around the thorax and abdomen. When the pressure around the -chest wall returned to that of the ambient air, expiration occurred passively owi...

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Assisted ventilation 6. Non-invasive and domiciliary ventilation: positive pressure techniques.

Intermittent positive pressure ventilation through an endotracheal or tracheostomy tube has been the mainstay of respiratory assistance for several decades. Some patients have been discharged home with a positive pressure device and tracheostomy but the number treated by these means in Britain has always been small.' Securing adequate gas exchange is usually easy and differs very little from th...

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Domiciliary non-invasive ventilation in stable COPD?

Chronic obstructive pulmonary disease (COPD) is the commonest indication for domiciliary non-invasive ventilation (NIV) in Europe. However, there is a paucity of evidence to support its use. A number of short-term randomised controlled trials (RCTs) failed to show any consistent benefit from NIV. In a crossover study comparing 3 months of bilevel ventilation plus long term oxygen therapy (LTOT)...

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ژورنال

عنوان ژورنال: Thorax

سال: 1991

ISSN: 0040-6376

DOI: 10.1136/thx.46.2.131