Skip to main content

Table 2 Different techniques for P.01 assessment

From: Equipment review: Measurement of occlusion pressures in critically ill patients

Technique Advantage Disadvantage
`Formal' occlusion Precise; Complicated;
technique good; requires specific
  repeatable equipment and
   interruption of the
   natural breathing
   rhythm
`Quasi occlusion' Simple; Requires a pressure
technique (demand no specific trigger with an
valve) equipment; opening time in the
  no interruption demand valve
  of the natural > 100 ms;
  breathing rhythm can be influenced by
   external factors
   (endotracheal tube
   obstruction)