How long can an LMA-Fastrach endotracheal tube stay in place?
The cuff of the LMA-Fastrach endotracheal tube is characterized as being low volume, high pressure. However, as Dr. Brain, the inventor, points out, “this term is misleading when applied to this specialized tube.” Studies have shown that the LMA-Fastrach endotracheal tube cuffs are lower pressure than the older red rubber endotracheal tubes that were associated with ischemic changes during long term use. In addition, part of the cuff pressure that is required to stretch the cuff wall itself is not transmitted to the tracheal walls. At “just seal” or “minimal occlusion volumes”, mucosal pressures should remain within safe limits.
