PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Pulmonary Diffusing Capacity”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 109 records · Page 6Linked to original sources
PubMed1975

Influence of body position on pulmonary diffusing capacity in yound and old men.

Steady-state diffusing capacity (DLCOSS2), studied in healthy nonsmokers, was significantly higher in five old men when seated than when supine, but was unchanged in five young men. However, "corrected" for the increased ventilation, it decreased in the young--but not in the old--when erect compared with when supine. The change of DLCOSS2 in the young during the first 20 min when seated was related to a change of the fractional dead space ventilation (VD/VT)mThe old showed less venous admixture when seated than when supine, whereas VD/VT and regional ventilation-perfusion index of the lung bases was the same in both positions. The decrease in venous admixture was probably due to the closing capacity (CC) being less than the functional residual capacity (FRC) when seated. The elimination of closed off regions when seated made more pulmonary capillaries available for diffusion.

Adult↗
PubMedDate not supplied

[Pulmonary diffusing capacity in patients with chronic renal failure treated by hemodialysis].

Forty-eight patients with chronic renal insufficiency (CRI) receiving hemodialysis (24 males and 24 females) aged 17-62 underwent bicycle exercise to measure diffuse capacity of the lungs (DCL) before and after the test. DCL components (membraneous and blood volume in pulmonary capillaries, Vc) were defined in 33 out of 48 patients. DCL appeared to reduce significantly (up to 65 +/- 2%) at the expense of Vc fall to 51 +/- 4.5% and membraneous component decline, to 65 +/- 4%. DCL depended on severity of anemia, hemodialysis efficiency, electrolyte metabolism activity and CRI gravity. Performance status in CRI patients is limited by DCL value responsible for maximal oxygen consumption under exercise being independent on duration and type of hemodialysis.

Adolescent↗