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Use of pulse transit time as a measure of inspiratory effort in patients with obstructive sleep apnoea.

Abstract:

Pulse transit time (PTT) is the time taken for the arterial pulse pressure wave to travel from the aortic valve to a peripheral site. For convenience, it is usually measured from the R wave on the electrocardiogram to the pulse wave arrival at the finger. Pulse transit time is inversely proportional to blood pressure, and the falls in blood pressure which occur with inspiration (pulsus paradoxus) correspond to rises (lengthening) in pulse transit time. In awake normal subjects, the size of th...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MSD, Clinical Medicine, Experimental Medicine Division, Biomedical Research Centre
Role:
Author
Journal:
The European respiratory journal
Volume:
8
Issue:
10
Pages:
1669-1674
Publication date:
1995-10-05
DOI:
EISSN:
1399-3003
ISSN:
0903-1936
URN:
uuid:05edff27-d4e7-4baa-bda5-72ea942a7e86
Source identifiers:
71448
Local pid:
pubs:71448

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