Unidirectional valve malfunction by the breakage or malposition of disc: two cases report / 대한마취과학회지
Korean Journal of Anesthesiology
; : 337-340, 2013.
Article
in En
| WPRIM
| ID: wpr-100098
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WPRO
ABSTRACT
Malfunction of the unidirectional valve in a breathing circuit system may cause hypercapnia from the rebreathing of expired gas, ventilation failure, and barotrauma. Capnography is a useful method for monitoring the integrity of the unidirectional valve. We experienced two cases of malfunction of a unidirectional valve which caused leakage and reverse flow, diagnosed early as a change of the capnographic waveform. One case was caused by expiratory unidirectional valve breakage. The other was caused by an incorrectly-assembled inspiratory unidirectional valve.
Key words
Full text:
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Index:
WPRIM
Main subject:
Respiration
/
Barotrauma
/
Ventilation
/
Capnography
/
Hypercapnia
Language:
En
Journal:
Korean Journal of Anesthesiology
Year:
2013
Type:
Article