68
Participants
Start Date
January 1, 2025
Primary Completion Date
January 1, 2028
Study Completion Date
March 1, 2028
Endoscopic direct Draf IIa
Endoscopic direct Draf IIa (Carolyn' window approach) frontal sinusotomy
Endoscopic angled Draf IIa
Group BFrontal sinusotomy using angled endoscopeand instruments
Assiut University
OTHER