Child'sAcutebacterialrhinosinusitis (ABS)aetiologyS.pneum 25-Sterile20-35%30%Anaerobes2-5%S.pyogenes 2-H.influenzae15-20%5%M.catarrhalis15-20%OtolaryngolHeadNeckSurg.2004:130:1-45
Child’s Acute bacterial rhinosinusitis (ABS) aetiology H.influenzae 15-20% S.pneum 25- 3 0% Sterile 20-35% Anaerobes 2-5% S.pyogenes 2- 5% M.catarrhalis 15-20% Otolaryngol Head Neck Surg. 2004;130:1-45
pathologylnitially,theexudatesisserous>Laterit may becomemucopurulentorpurulentFailureofostiumtodrain resultsinempyema of the sinus and destructionofits bony wallsleadingtocomplication
pathology ➢Initially,the exudates is serous ➢Later it may become mucopurulent or purulent ➢Failure of ostium to drain results in empyema of the sinus and destruction of its bony walls leading to complication
Aetiology of sinustis in general· A exciting causes1.nasal infections.2. swimming and diving3.trauma.4.dental infections
Aetiology of sinustis in general • A exciting causes 1. nasal infections. 2. swimming and diving. 3. trauma. 4. dental infections
Aetiology of sinustis in generalBpredisposingcausesLocal1. Obstruction to sinus ventilation anddrainage.2.Stasis of secretions in the nasal cavity3.Previous attacks of sinusitis
Aetiology of sinustis in general • B predisposing causes Local 1. Obstruction to sinus ventilation and drainage. 2. Stasis of secretions in the nasal cavity. 3. Previous attacks of sinusitis
Aetiology of sinustis in general· B predisposing causesGeneralEnviromentPoorgeneral health.BacteriologyMost case of acutesinusitisstartas viralinfectionsfollowedsoonbybacterialinvasion
Aetiology of sinustis in general • B predisposing causes General Enviroment. Poor general health. Bacteriology Most case of acute sinusitis start as viral infections followed soon by bacterial invasion