nasal fistula.

Hello.
does anyone has a knoledge / statistics of
surgeries to final closure of a tiny nasal fistula , which is a
residue of previous cleft , bone graft ( failure one ) , nasal right
floor reconstruction , removal of bad tissue (nasal floor).
and how to upgrade the chances of sucsess and preventing infection
in the surgery.
the area of the fistula is a scar tissue cause of all previous
surgeries.
last one 15 years ago
thanks.

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