• Corpus ID: 15458828

allows pursed lips breathing . A new pendant oxygen-conserving cannula which

@inproceedings{Brian2006allowsPL,
  title={allows pursed lips breathing . A new pendant oxygen-conserving cannula which},
  author={Brian and L. and Tiệp},
  year={2006}
}
1989;95;857-860 Chest B L Tiep, M Burns and J Hererra allows pursed lips breathing. A new pendant oxygen-conserving cannula which http://chestjournal.chestpubs.org/content/95/4/857 services can be found online on the World Wide Web at: The online version of this article, along with updated information and ) ISSN:0012-3692 http://chestjournal.chestpubs.org/site/misc/reprints.xhtml ( without the prior written permission of the copyright holder. distributed rights reserved. No part of this article… 

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References

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TLDR
It is concluded that the PNC provides effective oxygen delivery to patients at supply flows substantially less than the SNC, and its widespread use in patients requiring chronic oxygen therapy could bring about significant financial savings.
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In 6 patients with chronic obstructive lung disease, cineradiographic studies showed during the expiratory phase of PL breathing that the soft palate rose to closely contact the posterior pharyngeal wall, completely occluding the entrance to the nasopharynx.
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It is concluded that patients can learn to increase their SaO2 by PLB using ear oximetry adjunctively as well as relieving dyspnea using an A-B-A crossover study design.
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The CNC offers a more efficient oxygen delivery system for those patients requiring supplemental oxygen administration by nasal cannula for patients with chronic obstructive pulmonary disease.
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While significant savings were achieved with the flow reducing oxygen pendant (OP), problems with patient acceptance may limit its practicality, particularly in continuous use situations.
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In hypoxemic obstructed and restricted patients at rest and during exercise, the reservoir cannula uses less than half the oxygen of a standard cannula to produce similar improvement in SaO2 and thus has advantages of a reduced cost of ambulatory therapy with low-flow oxygen and a longer time permitted away from a stationary source of oxygen.
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The present findings show that the residual, established hypertension is also reversible if oxygen therapy is continued for weeks, and it is suggested that this reversal may be brought about by regression of the muscular hyperplasia of the small pulmonary vessels consequent to longterm relief of hypoxia.
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