endoscopic unilateral (RT) choanal atresia

The position of the instrument in the nasopharynx is confirmed:
In unilateral cases, the position is confirmed using a 0° or 30° endoscope through the contralateral nasal passage.
Step 1 :
Hemitransfixation incision, Elevation of the mucoperichondium and mucoperiostium

Step 2 :
Removal of the vomer and sphenoid rostum,
A backbiting forceps removes further portions of the vomer and bony septum.

Step 3 :
Elevation of the mucosa of the atresial plate
Removal of the plate by Kerrison rongeurs, The forceps is inserted on the atretic side, and appropriate position is confirmed with a 0° endoscope on the contralateral side. This is an important step in gaining an adequate opening for the choanal
Septoplasty also was done