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General Article
Anesthesia and Pain Medicine 2013;8(2):141-144.
Published online April 30, 2013.
The adsorption of inspired desflurane due to incorrectly mounted air dryer filter of the heated humidifier: A case report
Jeong Eun Lee, Oh Dae Kwon, Jong Chan Kim, Tae Ha Ryu
1Department of Anesthesiology and Pain Medicine, Kyungpook National University Hospital, Daegu, Korea.
2Department of Anesthesiology and Pain Medicine, School of Medicine, Catholic University of Daegu, Daegu, Korea. anesryu@cu.ac.kr
Abstract
Heated humidifiers are used to prevent respiratory complications associated with mechanical ventilation with an endotracheal tube. One of the heated humidifiers uses an air dryer filter in order to remove humidity from air before it enters the anesthetic machine. We report a case in which the air dryer filter was unintentionally misconnected to the inspiratory limb of the circuit, which caused insufficient volatile anesthetic concentration during anesthesia induction.
Key Words: Air dryer filter, Desflurane, Humidity, Silica gel
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