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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1982-4-12
pubmed:abstractText
Pulmonary diffusing capacity may be determined by rebreathing techniques using various test gases. The errors caused by functional inhomogenities are smaller with the rebreathing method than those found in the single-breath technique. However, until now there have been some disadvantages to the clinical application of the rebreathing technique. In the present paper, a modification of the rebreathing technique suggested by Piiper, Scheid, Meyer and Adaro (1975 and 1976), in which pulmonary diffusing capacity for carbon monoxide, DCO(RB), is measured, has been applied to intubated and anesthetised patients. Measurements were performed in 39 surgical patients with healthy lungs during artificial ventilation and narcosis. Under these conditions all patients had a DCO(RB) greater than or equal to 75 ml/min . kPa (10 ml/min.torr). The coefficient of variation for duplicate measurements was +/- 4.2%. In the same patients DCO-single-breath-measurements, DCO(SB), were also made. There was a significant (p less than 0.0001) correlation between DCO(RB) in artificially ventilated, anaesthetised patients in a supine position and DCO(SB) for spontaneously breathing, awake patients in a sitting position. A linear regression analysis of the data showed the DCO(SB) was related to DCO(RB) in the following manner: DCO(SB) = 1.62DCO(RB) = 4.44 (ml/min.torr) (r = 0.71, n = 39). The mean value of DCO(RB) was 53.4% of the mean value of DCO(SB). This difference may be due to the combination of different techniques used and different conditions during the measurements (reduced FRC, difference in F1O2 etc.). The histogramm of the distribution of DCO(RB) had a similar form to that of DCO(SB). The modified method has a high reproducibility and can easily be performed as a bed-side test without disturbance to patients with an endotracheal tube.
pubmed:language
ger
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0003-2417
pubmed:author
pubmed:issnType
Print
pubmed:volume
30
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
602-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
[Determination of pulmonary diffusing capacity during artificial ventilation (author's transl)].
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't