Rhinosinusitis Flashcards
define sinusitis and rhinosinusitis
sinusitis
-inflammation of the paranasal sinuses
usually accompanied by inflam of the nasal cavity and that is referred to as rhinosinusitis
types of sinusitis
acute- less than 12wks
chronic- more than12 wks
define the paransal sinutes
hollow spaces within the bones of the face
arrange symmetrically around nasal cavity
function of teh paransal sinuses
-what causes sinusitis
produce mucous and drain into the nsal caivites via holes called ostia
-blockage of the ostia prevents draingae fo the sinuses and causes sinusitis
state the four paranasal sinuses and their locations
frontal sinues (above the eyebrows)
maxillary sinuses- either side of the nose below the eyes
ethmoid sinuses - in the ethmoid bones in the middle of the nasal cavity
sphenoid sinues
-in the sphenoid bone at the back of the nasal cavity
causes of sinusitis 4
*-what group of patients are more likely to suffer from sinusitis
infection-particular after viral URTI
allergies-such as hayfever (w allergic rhinitis)
obstruction of drainage
-due to foreign body, trauma or polyps
smoking
*-asthmatics
presentaion of sinusitis 6
for acute sinusitis
-usually had a recent URTI and the following:
-nasal congestion, discharge,
-facial pain, headache, pressure,
swelling over affected areas
loss of smell
what can examinaitno in sinusitis reveal 4
tenderness to palpation of affected areas
inflam and oedema of nasal mucosa
discharge
fever
other signs of systemic infections (eg tachycardia)
how does chronic sinusitis present
similar to acute but with duration of more than 12 weeks
-may be assoc w polyps which are growths of the nasal mucosa
investigations for sinusitis
in most cases Ix not necessary
-in ptx w persistent syx despite syx
Ix include
-nasal endoscopy
-CT scan
management of acute sinusitis 3
systemic infection or sepsis require admission to hospital
no ABx for first 10 days of syx
most cases are viral and resolve within 2-3wks \
if syx not improving after 10 days
-high dose steroids
-delayed ABx prescirpi
options for chronic sinusitis 3
saline nasal irrigation
steroid nasal sprays or drops
funciontal endosocpic sinus surgery