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Anesthesia and analgesia · Sep 1978
Comparative StudyTracheal pathology following short-term intubation with low- and high-pressure endotracheal tube cuffs.
- E A Loeser, M Hodges, J Gliedman, T H Stanley, R K Johansen, and D Yonetani.
- Anesth. Analg. 1978 Sep 1;57(5):577-9.
AbstractHistologic sections of dog tracheas were taken from 20 dogs anesthetized and intubated for 5 to 7 hours with high-pressure, low-volume Shiley or low-pressure, high-volume Lanz endo-tracheal tubes. Microscopic examination and measurement showed that while the high-pressure, low-volume cuff produced deeper average mucosal erosion, the large-volume, low-pressure cuff resulted in significantly greater lengths of tracheal mucosa-cuff erosion. Maximal depth of penetration throught the basement membrane was similar in both groups. Grooves in the mucosa were seen in 50% of the high-volume-cuff trachea sections but none of the low-volume-cuff tracheal sections. These findings demonstrate that low-pressure, high-volume endotracheal tube cuffs produce different but significant tracheal damage after short-term intubation when compared to high-pressure, low-volume cuffs.
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