Epistaxis Flashcards
What is epistaxis?
nosebleed
What are the two types of epistaxis? what is the difference between the two?
anterior and posterior
anterior - visible source or bleeding
posterior - more profuse and originate from deeper structures -> bilat bleed, can’t locate on speculum
which area is affected in anterior bleeds?
capillaries forming Kiesselbachs plexus (littles area)
why are posterior bleeds more dangerous? who do they tend to occur in?
higher risk of aspiration and airway compromise
older pts
what are local causes of epistaxis
i. TRAUMA - nose picking/blowing, foreign bodies, septal perforation, blunt trauma (falls in children)
ii. INFLAMMATION - inf, allergic rhinosinusitis, polyps
iii. TOPICAL DRUGS - cocaine, decongestants, CS
iv. VASCULAR - hereditary haemorrhagic telangiectasia, Wegeners
v. POST OP
vi. Tumours - benign (angiofibroma), SCC
vii. Nasal O2 therapy - dries mucosa
What are systemic causes of epistaxis?
- HTN - assoc but may not be causative
- Atherosclerosis
- Haematological conditions - thrombocytopenia, platelet dysfunction, vWD, leukaemia, haemophilia
- Environment - temp, humidity, altitude
- Systemic drugs - anticoagulants, antiplatelets
- XS alcohol
What are first aid measures for controlling nosebleeds?
- Sit forward w mouth open
pinch cartilaginous area for 15 mins while mouth breathing - decongest e.g. ephedrine 0.5% drops
- Ice pack on dorsum of nose
what is always the initial management of epistaxis?
check the pt is haemodynamically stable!!
ABCDE
resuscitate if needed
What is the next step in management if first aid measures fail? what does this involve?
SILVER NITRATE CAUTERY
i. pt blows nose to remove clots
ii. topical local anaesthetic spray
iii. find bleeding point
iv. apply silver nitrate stick
v. dab area clean w a cotton bud and apply naseptin or muciprocin
why must you only cauterise one side of the septum?
risk of perforation
What is the next step in management after cautery?
Anterior nasal pack
I. anaesthetise w spray
ii. advance all the way into nose horizontally
iii. examine mouth + throat for any bleeding, consider packing other nostril
What is the next management after anterior nasal pack?
postnasal pack
admit pts w packs
how should you manage haemodynamically compromised pts?
admit to emergency department, control bleeding w first aid measures in interim
What pts should be admitted to hospital ?
bleed from unknown or posterior source
What is the management of posterior epistaxis?
- examination under anaesthesia - If bleeding point found, rx directly e.g. diathermy
- endoscopic ligation of maxillary/sphenopalatine artery
- embolisation but risk of stroke