Bronchial Asthma Flashcards
Pooled weighted prevalence of asthma
14.3%
Airway narrowing in asthma bc of ?
1- mucus secretion
2- bronchial wall thickening due to edema, smooth muscle hyper-atrophy and sub-epithelial fibrosis
Asthma symptoms worse at?
At night particularly in children mostly coughing
What can worsen asthma ?
- beta blockers
- aspirin
- NSAIDs
- GERD
Gold standard?
Spirometry to confirm a way of instruction and demonstrate significant reversibility but performing a spirometry.
-The degree of significant reversibility is defined as an improvement in force expiratory volume in the first second fourth expiratory volume -> 12% and _> 200ml from the prebronchodilator value
Asthma Dx in children
- don’t use spirometry in children <6 years
- for infant due x-ray to exclude congenital causes
- do hypersensitivity test : skin testing , IgE ,
- hx of cough for >2 weeks at night not related to URTI
- hx of wheezing : must be at both side and with expiration
- hx of multiple attack of SOB or wheezing /season : >3 attack / season
Prediction of asthma in preschool children
- history of -> 4 wheezing attack
With (one or more of major Cr) / or (two or more of minor Cr )
-major criteria:
Family history of asthma, skin-test positive to allergens, eczema (physician diagnosed a topic dermatitis)
-minor criteria:
Allergic sensitization to milk eggs or peanuts, eosinophilia more than 4%, wheezing unrelated to cold
Asthma control test score
- controlled : ->20
- partially controlled: 16-19
- uncontrolled : <16
Medication for asthma
Relievers/rescue medication
-salbutamol (SABA) used as needed- basis
- formetrol/ICS combination used as needed- basis
Formetrol ( is a LABA) with fast bronchodilator effect
Controller medication
- inhaler corticosteroids ICS is considered most effective controller and the cornerstone of asthma treatment
- if the patient is uncontrolled maybe adding addition controller medication
- leukotrienes receptor antagonist 
Tx initiation
-controlled ACT>20
Give formetrol/ICS as needed
And give low dose ICS for special situations
-partially controlled 16-19 Give “low” dose ICS use SABA as a reliever Formetrol/ICS as needed And give LTRA
- uncontrolled < 16
- low to “medium” does of ICS with LABA
- for acute attack my require “oral” corticosteroids
Management need to continue for at least before lowering or cutting medication
3 months
Tx adjustment and maintenance
1- mild (step 1,2) Step1 Formetol/ICS as needed SABA with ICS as needed Step 2 Low maintenance dose of ICS as needed Or formetrol/ICS Alternatively: LTRA.
2-moderate (step3) Step3 - low dose ICS + LABA alternative? - low dose ICS +LTRA - medium dose ICS -low to medium ICS+ theophylline
3- sever ( step 4,5) Step 4: -medium to high dose ICS+ LABA add on therapy : LAMA LTRA
Step5-
Immune therapy
Anti IgE
Less preferred ? Oral corticosteroids
Mx of children less 5 ?
5 steps( all the steps includes salbutamol as needed )
Step1 : salbutamol as needed
Step 2
- low dose ICS OR leukotrienes modifiers
Step3
- double dose ICS. OR. Low dose ICS + L modifiers
Step4:
-double ICS + L modifiers
Step5 :
Use step4 regimen + systemic steroids
When to refer to specialist ?
After step 3