Allergic Rhinoconjunctivitis Flashcards Preview

Hugh's MD3 Paediatrics > Allergic Rhinoconjunctivitis > Flashcards

Flashcards in Allergic Rhinoconjunctivitis Deck (7):

What is allergic rhinoconjunctivitis?

Chronic IgE mediated inflammatory response to mucosal contact with inhaled allergens


What are the history features of allergic RC?

- Rhinitis: Nasal obstruction, itch, sneezing and clear rhinorrhoea
- Conjunctivitis: itching and increase in tear fluid


How does the time course of symptoms reflect the trigger?

○ Spring/summer/autumn: Pollen or mould
○ Perennial: indoor allergens eg house dust mite, animal dander, cockroaches
- Episodic: often animal dander


What are the exam findings in allergic RC?

- Nose
○ Swollen and pale turbinates, when severe they can extend to the nasal septum

- Eyes
- Conjunctival injection oedema which appears red and swollen


With what presentations would you consider an alternative cause?

Obstruction being the only symptom - anatomical cause

Sneezing, mucoid rhinorrhoea and/or obstruction predominate - vasomotor or infective rhinitis


When do you investigate? How?

Perennial not seasonal course

Skin or serology IgE testing


What are the principles of management?

- Intermittent symptoms - anti-histamines
- Prolonged - topical steroids + anti-histamines
- Steroids are best for obstructive symptoms but also reduce rhinorrhoea, sneezing and conjunctival symptoms
- Anti-histamines are not effective for obstructive symptoms
- Start steroids treating before spring for best effect and consider decongestants first