ISSN:
1432-1238
Keywords:
Heat-moisture exchangers
;
COPD
;
Auto PEEP
;
Controlled mechanical ventilation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract In recent years the use of devices called Heat and Moisture Exchangers (HME) has become widespread as gas conditioners for ICU patients requiring mechanical ventilation. As an important variation of the resistive properties of the HME, related to flow and duration of use, has recently been pointed out during “in vitro” studies, the use of these devices in COPD patients could increase the levels of auto PEEP and dynamic hyperinflation. In this study we have compared the levels of auto PEEP and difference in functional residual capacity (Δ FRC) in a group of COPD patients, requiring controlled mechanical ventilation (CMV), at basal conditions and after the insertion into the circuit of three HMEs (Dar Hygrobac, Pall Ultipor, Engstrom Edith) at random: the results obtained excluded a significant increase of auto PEEP and Δ (FRC) both with “new” HMEs and after 12 h of continuous use.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01711222
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