|
KMID : 0356920130650040337
|
|
Korean Journal of Anesthesiology
2013 Volume.65 No. 4 p.337 ~ p.340
|
|
|
Unidirectional valve malfunction by the breakage or malposition of disc - two cases report -
|
|
Lee Chol
Lee Kyu-Chang
Kim Hye-Young
Kim Mi-Na
Choi Eun-Kyung
Kim Ji-Sub
Lee Won-Sang
Lee Myeong-Jong
Kim Hyung-Tae
|
|
|
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.
|
|
|
KEYWORD
|
|
|
Capnography, Hypercapnia, Unidirectional valve
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
   
|