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Heat and exchange moisturizers (HME) are devices used in mechanically ventilated patients intended to help prevent complications due to "drying of the respiratory mucosa, such as mucus plugging and endotracheal tube (ETT) occlusion." HMEs are one type of commercial humidification system, which also include non-heated-wire humidifiers and heated-wire humidifiers.〔 HMEs have been in clinical use for over 30 years. An HME cassette plays a central part of lung rehabilitation after a total laryngectomy. == In mechanically ventilated patients == Humidification and sunctioning are necessary to manage secretions in patients on mechanical ventilation. According to Branson (2007), the optimal humidification level "has been not well defined, but it is clear that in a patient with thick and copious secretions a heated humidifier is preferred to an HME". In patients with acute lung injury and acute respiratory distress syndrome conventional humidifiers are preferred to HMEs for improved elimination of carbon dioxide.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Heat and moisture exchanger」の詳細全文を読む スポンサード リンク
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