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Saline soaked pledgets prevent carbon dioxide laser-induced endotracheal tube cuff ignition

1995; Elsevier BV; Volume: 7; Issue: 5 Linguagem: Inglês

10.1016/0952-8180(95)00070-x

1873-4529

Mitchel B. Sosis,

Cardiac Arrest and Resuscitation

To determine whether saline soaked pledgets would protect the cuffs of polyvinylchloride (PVC) endotracheal tubes from carbon dioxide (CO2) laser-induced combustion.12 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.Research laboratory of a university hospital.Six 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.All 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.Under the conditions of this experiment, saline soaked pledgets protected PVC endotracheal tube cuffs from the CO2 laser.