Sinusitis

ENT • Respiratory

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Overview

Sinusitis is the inflammation or swelling of the tissue lining the sinuses. Healthy sinuses are filled with air, but when they become blocked and filled with fluid, germs can grow and cause infection.

Prevalence: Sinusitis affects approximately 1 in 8 adults annually, making it one of the most common health complaints in the United States.

Causes & Pathophysiology

Common Causes:

Pathophysiology:

Inflammation of sinus mucosa → edema and obstruction of sinus ostia → impaired mucociliary clearance → mucus accumulation → bacterial proliferation → purulent discharge → symptomatic presentation.

Types of Sinusitis:

Type Duration Characteristics
Acute Up to 4 weeks Sudden onset, viral or bacterial
Subacute 4-12 weeks Transitional phase
Chronic Over 12 weeks Persistent inflammation
Recurrent Multiple episodes/year 4+ episodes with symptom-free intervals

Symptoms & Presentation

Major Symptoms:

Additional Symptoms:

Risk Factors

Diagnosis & Investigations

Clinical Diagnosis:

Based on symptom criteria (2 major or 1 major + 2 minor symptoms for ≥7 days).

Physical Examination:

Diagnostic Tests:

Test Purpose Indications
Nasal Endoscopy Direct visualization Chronic/recurrent cases, treatment failure
CT Scan Detailed sinus anatomy Chronic sinusitis, preoperative planning
MRI Soft tissue evaluation Suspected tumors, fungal sinusitis
Allergy Testing Identify allergens Suspected allergic component

Management & Treatment

Conservative Management:

Medical Treatment:

Medication Type Examples Purpose
Nasal Corticosteroids Fluticasone, Mometasone Reduce inflammation
Oral Decongestants Pseudoephedrine Relieve congestion
Analgesics Acetaminophen, Ibuprofen Pain and fever relief
Antibiotics Amoxicillin-clavulanate Bacterial infections only
Antibiotic Note: Antibiotics should only be used for confirmed bacterial sinusitis. Most cases are viral and will resolve without antibiotics.

Surgical Treatment:

Functional Endoscopic Sinus Surgery (FESS) may be indicated for:

Ayurvedic Treatment

Herbal Remedies:

Ayurvedic Procedures:

Diet, Lifestyle & Self-care

Recommended Diet:

Foods to Avoid:

Self-care Measures:

Prognosis

Most cases of acute sinusitis resolve within 7-10 days with appropriate treatment. Chronic sinusitis may require long-term management but generally has a good prognosis with proper treatment.

Potential Complications:

When to Seek Medical Care

Seek immediate medical attention for:
  • Severe headache or facial pain
  • High fever (above 102°F/39°C)
  • Vision changes or double vision
  • Swelling or redness around eyes
  • Confusion or difficulty thinking
  • Stiff neck
  • Shortness of breath
  • Symptoms lasting more than 10 days without improvement

Prevention & Screening

Preventive Measures:

Screening:

Routine screening for sinusitis is not recommended. Diagnosis is based on symptomatic presentation.