ENT
,Obstruction of choana
CHOANAL ATRESIA
,Facts
Etiology Classification
• Canalization failure of • Unilateral / Bilateral
buccopharyngeal
membrane • Bony / Membranous
*most bony
• Bilateral
A/W Charge syndrome
, Presentation
Unilateral Bilateral
• Asymptomatic • Emergency
• Death
• Unilateral obstruction • 1st 3 months obligate nose
breather
• Unilateral discharge • Bilateral discharge
(thick / mucoid) • Bilateral obstruction
• Difficulty in suckling
• Egg albumin like • Cyclical crying + cyanosis
,Obstruction of choana
CHOANAL ATRESIA
,Facts
Etiology Classification
• Canalization failure of • Unilateral / Bilateral
buccopharyngeal
membrane • Bony / Membranous
*most bony
• Bilateral
A/W Charge syndrome
, Presentation
Unilateral Bilateral
• Asymptomatic • Emergency
• Death
• Unilateral obstruction • 1st 3 months obligate nose
breather
• Unilateral discharge • Bilateral discharge
(thick / mucoid) • Bilateral obstruction
• Difficulty in suckling
• Egg albumin like • Cyclical crying + cyanosis