Nose and sinus problems Flashcards
What can cause obstruction to drainage of paranasal sinuses?
Anatomical- septal deviation, polyps
Mucosal- viral infection causing mucosal oedema
What are the features of acute bacterial rhinosinusitis?
Discoloured discharge and purulent secretion in the nasal cavity
Severe local pain
Fever (>38)
Elevated CRP/ESR
Double sickening- i.e. deterioration after milders symptoms
Is swelling a common feature of sinusitis?
No- visible swelling is uncommon. Exclude cancers or dental root infections
What are some organisms causing rhinosinusitis?
S.pneumoniae
H.infuenzae
S.aureus
98% of causes of are viral
What investigations might be considered for recurrent acute or chronic sinusitis?
CT of the paranasal sinuses
Nasal endoscopy
What is the management for acute sinusitis?
98% case are viral and self limiting, taking around 2.5 weeks to resolve
Simple analgesia
Nasal saline irrigation
Nasal decongestants e.g.ephedrine 0.5% max 1 week
Intranasal corticosteroids- if severe symptoms or have been present for more than 10 days.
If bacterial infection suspected give ABx- amoxicillin or doxycycline.
Smoking cessation is also beneficial and should be recommended
What might be done for recurrent sinusitis?
Imaging and consideration for surgery- e.g. endoscopic sinus surgery.
What are some complications of sinusitis?
Orbital cellulitis/abscess
Intra-cranial involvement- meningitis, encephalitis, cerebral abscess, cavernous sinus thrombosis
Mucocele- sinus may become a pus filled cavity
Osteomyelitis- bone infection
When should intra-nasal corticosteroids be considered for sinusitis
If symptoms persist for 10 days or more or the symptoms are severe
What is sinusitis?
Inflammation of the mucosal surfaces of the paranasal sinuses
Why might patients who smoke be at increased risk of developing sinusitis?
Smoking decreases the motility of the cilia and so decreases clearance which increases the risk of developing infection
What are the symptoms of acute sinusitis?
Facial pain- typically frontal pressure pain which worsens when bending forward
Nasal discharge- thick and purulent
Nasal obstruction
If a bacterial cause is suspected in acute sinusitis what antibiotics may be prescribed?
Phenoxymethylpenicillin
Co-amoxiclav is systemically very unwell, signs and sx of a more serious illness or at high risk of complications
What are some warning flags for cancer of the paranasal sinuses?
Bleeding Blood stained nasal discharge Unilateral nasal obstruction Swelling Any signs of local invasion
What are some factors that are associated with nasal polyps?
Asthma- particularly late onset Aspirin sensitivity Infective sinusitis Cystic fibrosis Kartagener's syndrome