-
- M B Sosis.
- Department of Anesthesiology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL.
- J Clin Anesth. 1995 Aug 1; 7 (5): 395-7.
Study ObjectiveTo determine whether saline soaked pledgets would protect the cuffs of polyvinylchloride (PVC) endotracheal tubes from carbon dioxide (CO2) laser-induced combustion.Design12 PVC endotracheal tubes were studied. The cuffed end of each was placed in a graduated cylinder and flushed with 5 L/min of oxygen for 5 minutes. The endotracheal tube's cuff was then inflated with air and the system pressure set to 20 cm H2O.SettingResearch laboratory of a university hospital.InterventionsSix of the endotracheal tube cuffs were protected with 1 inch by 3 inch saline soaked pledgets and six were left unprotected. A CO2 laser set to 40 watts was then fired at the cuffs.Measurements And Main ResultsAll six unprotected cuffs were ignited in less than 1 second. No significant combustion occurred at the six pledget protected endotracheal tube cuffs after 1 minute of laser fire.ConclusionsUnder the conditions of this experiment, saline soaked pledgets protected PVC endotracheal tube cuffs from the CO2 laser.
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