[Measurement of intrabronchial pressure by catheter].
Some limitations of the measurement of intrabronchial pressure by a catheter have been analyzed on the basis of experimental data obtained on a mechanical model. It has been ascertained that the magnitude of the pressure measured by a catheter may essentially differ from the real one in the bronchi in the absence of a catheter, provided the diameter of the bronchus is more than twice greater than that of the catheter. It is pointed out that catheter introduction even into the bronchi relatively large in diameter may change considerably the position of the equal pressure point, thereby altering the conditions of dynamic contraction of the bronchi.
D001980:Bronchi / Q000502:physiology*; D002404:Catheterization; D006801:Humans; D008365:Manometry / Q000295:instrumentation; D008961:Models, Structural
Ob izmerenii vnutribronkhial'nogo davleniia kateterom.