What can be gained ?

What can be gained from using MASTERKA ?

(Pushed monocanalicular intubation)


The most significant potential benefit is perhaps to be found in the late treatment of nasolacrimal imperforations in infants over 12 months of age.


The current therapeutic approach is pulled canalicular-nasal intubation under general anaesthesia mechanically assisted ventilation and larynx protection.  The success rate is 95%. The anesthetic consideration required is a constraint and the operating methods are at times excessive.


Some authors view the complexity of nasolacrimal stenosis as more important than the age of the child. One should take adventage of the general anaesthesia and spontaneous ventilation (facial mask)  to evaluate the nature of the stenosis before selecting a specific probing procedure :

-     Should the stenosis be complex : the practitioner can choose the pulled monocanalicular procedure. General anaesthesia is lengthy and the traditional procedure can take place during the same operation.

      -     In the case of a simple mucosal stenosis : probing until the age of 3 or even 5 years is recommended by some authors. Of course the constraints associated with anaesthesia are simpler, but the success rate at an older age is highly debatable.This rate varies between 39 and 90% according to the series examined.  In this situation, if the obstruction is mucosal, then MASTERKA  is an excellent alternative to late and very late probing :

  • Routine general anesthesia and spontaneous ventilation techniques are sufficient (facial mask).
  • The operating time is similar.
  • The Masterka avoids the unnecessary and often difficult intranasal maneuvers needed to pullout the stent and tubing of traditional "pulled" intubation systems.
  • The results are constant and corresponding.
  • The cost of the Masterka is balanced by a much better success rate, and statistically fewer second operations as compared to multiple repeat probing alone without use of a silicone stent.