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Chronic sinusitis. Definition. Inflammation of the mucosa of one or more paranasal sinuses lasting for more than 3 months. Etiology. Mechanial obstruction Infections Trauma Decreased mucociliary function Allergy. Pathophysiology. Pathology.
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Definition • Inflammation of the mucosa of one or more paranasal sinuses lasting for more than 3 months
Etiology • Mechanial obstruction • Infections • Trauma • Decreased mucociliary function • Allergy
Pathology • Surface epithelium- desquamation or metapalsia • Submucosa – lymphocytes, plasma cells, fibrosis, polyp
Symptoms of CRS • 4 major symptoms ( 2 , to make Dx ) • Purulent nasal discharge • nasal obstruction or blockage • facial pain, pressure, and/or fullness • decreased sense of smell J Allergy ClinImmunol 2010;125:S103-15
Symptoms of CRS • Minor symptoms: • Headache • Fever • Halitosis • Fatigue • Dental pain • Cough • Ear pain/pressure/fullness Middleton’s Allergy,principal & practice. Seventh edition.
Treatment - medical • Correct the underlying cause • Antibiotics • Decongestants • Antihistaminics
Surgery for maxillary sinusitis • Antral puncture • Intranasal antrostomy • Caldwell luc surgery • FESS
Surgeries for chronic frontal sinusitis • Frontal sinus trephination • External frontoethmoidectomy • Osteoplastic flap operation • FESS
Surgeries for ethmoid sinusitis • Intranasal ethmoidectomy • External ethmoidectomy
Steps of F.E.S.S. 1.Uncinectomy (Infundibulotomy) 2. Anterior ethmoidectomy 3. Middle meatalantrostomy 4. Perforation of basal lamella 5. Posterior ethmoidectomy 6. Sphenoid sinus exploration 7. Frontal recess exploration