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Asthma
Asthma :)
65
Aerospace Engineering
1st Grade
02/03/2013

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Term
A chronic inflammatory disorder of the airways characterized by reversible airway obstruction
Definition
Asthma
Term
Inflammatory Process: Acute effects (reversible)
Definition
Acute bronchoconstriction, airway edema, mucus hypersecretion
Term
Features of asthmatic airway remodeling
Definition
-subepithelial fibrosis
-increased numbers and volume of mucous cells in the epithelium
-increased amounts of airway smooth muscle
-increased vascularization of the airway wall
Term
Normal FEV1/FVC
Definition
0.7-0.9
Term
Obstuctive asthma FEV1/FVC
Definition
<0.7
Term
Restrictive (emphysema) FEV1/FVC
Definition
>0.85
Term
compact; requires good coordination
Definition
meter dose inhaler (MDI)
Term
reduces oropharynx deposition, lower inhalation velocity required, reduced timing issues
Definition
spacer/holding devices
Term
"softer" dose; cleaning once per week, priming required, do not immerse: no "float-testing"
Definition
HFA inhaler
Term
not for children < 4 years old; limited expiration date once opened; appears to have similar delivery efficiency as MDI with or without spacer
Definition
Dry powder inhaler (DPI)
Term
ease of use, cost, time limitations, mobility, expiration date once opened
Definition
Nebulizer
Term
Beta 1 receptors
Definition
cardiac tissue, positive chronotrope and inotrope
Term
Beta 2 receptors
Definition
pulmonary structures, vascular tissue, bronchodilitation, vasodilitation
Term
mainstay of acute exacerbation management; prevention of exercised induced asthma; temporary bronchoprotection; very high doses have been used in ER setting
Definition
short-acting beta agonists
Term
short-acting beta agonists common side effects
Definition
tremor, CNS stimulation, palpitations
Term
short-acting beta agonists (inhaled formulations)
Definition
Albuterol, Levalbuterol
Term
racemic mixure of both R(-) and S (+) enantiomers; inhaler, nebulizer solution, DPI; high dosing can be used in acute exacerbations
Definition
Albuterol
Term
R(-) enantiomer; less medication for the same effect; consider in patients who do not respond well to albuterol
Definition
Levalbuterol
Term
Chronic management, added to anti-inflammatory therapy
Definition
long-acting beta agonists
Term
1 inhalation twice daily; long term prevention of symptoms, added to anti-inflammatory therapy; increased lipophilicity resulting in prolonged retention in lung tissue
Definition
Salmeterol; Formoterol
Term
Long-acting beta2 agonists may increase the risk of asthma-related death; does not have indication for acute exacerbations
Definition
Formoterol
Term
Relief of acute exacerbations, used in addition to short acting beta 2 agonists; competitive inhibition of muscarinic cholinergic receptors
Definition
Ipratropium Bromide
Term
Ipratropium Bromide
Definition
Not effective in the prevention of exercise induced bronchospasm
Term
slower onset of action than beta2 agonists; appears to have some additive effects to beta2 agonists
Definition
Ipratropium Bromide
Term
Mexthylxanthines
Definition
Theophyline, Aminophyline
Term
alternative additive long-term therapy (Rarely used); narrow therapeutic range
Definition
Mexthylxanthines
Term
blocks late allergen reaction, suppress the generation of cytokines, suppress the recruitment of airway eosinophils, suppress the release of inflammatory mediators
Definition
Corticosteroids
Term
Chronic management, daily or every other day dosing, taper to lowest effective dose
Definition
Systemic corticosteroids
Term
Systemic Corticosteroids Long term side effects
Definition
Adrenal axis suppression, growth suppression, cataracts/glaucoma, immune suppression
Term
Systemic Corticosteroids Acute exacerbations
Definition
Onset 6-12 hours; treatment for 3-10 days (taper not needed); methylprednisolone (IV) and Prednisone, Prednisolone (PO)
Term
Systemic Corticosteroids Short Term use Adverse Effects
Definition
Fluid retention, mood alteration, increased appetite
Term
Cornerstone of chronic management, lower systemic side effects, dose related response
Definition
Inhaled Corticosteroids
Term
Inhaled Corticosteroids
Definition
not for acute management, therapeutic effect about 2 weeks, rinse mouth
Term
Fluticason/salmeterol (Advair); Budesonide/formoterol (Symbicort); Mometason/formoterol (Dulera)
Definition
inhaled corticosteroid + long acting beta agonist
Term
Alternative: long-term therapy
Prophylactic treatment
Mast cell stabilizer
Definition
Cromolyn and Nedocromil
Term
Zafirlukast, Montelukast
Definition
Leukotriene inhibitors
Term
Alternative: long-term therapy
Leukotriene receptor antagonist
Definition
Zafirlukast and Montelukast
Term
Additive: long-term management for severe asthamtics
Persistent allergic asthma
Poorly controlled asthma
Definition
Omalizumab (Xolar)
Term
Selectively binds to human IgE; expensive and slow onset of effect
Definition
Omalizumab
Term
Acute exacerbations
Definition
short acting beta2 agonists; SC epinephrine or terbutaline; anticholinergics; corticosteroids
Term
Outpatient management: Good response
Definition
short acting beta 2 agonist Q 3-4 hrs PRN; consider oral steroid
Term
Outpatient management: Incomplete response
Definition
Cont. short acting beta 2 agonist; oral steroid
Term
Outpatient management: Poor response
Definition
Repeat short acting beta 2 agonist NOW; oral steroid; TO ER
Term
Hospitalized/emergency department: moderate
Definition
inhaled beta 2 agonist; supplemental oxygen; consider oral steroid
Term
Hospitalized/emergency department: severe
Definition
nebulized beta 2 agonist + anticholingeric; supplemental oxygen; oral steroid
Term
Impending Respiratory Arrest
Definition
Nebulized beta 2 agonist + anticholinergic; intubation x/ 100% oxygen; IV steroid
Term
FEV1 of PEF > 50%
Definition
moderate
Term
FEV1 or PEF < 50%
Definition
severe
Term
Step 1 (intermittent asthma)
Definition
short acting beta 2 agonist (SABA)- all ages
Term
Step 2 (persistent asthma)
Definition
low dose inhaled corticosteroid (ICS)- all ages
Term
Step 3 (persistent asthma): Age 0-4 yrs
Definition
Medium dose ICS
Term
Step 3 (persistent asthma): Age 5-11 yrs
Definition
medium dose ICS OR low dose ICS; plus either LABA, leukotriene modifier or theophylline
Term
Step 3 (persistent asthma): Age > 12 yrs
Definition
medium dose ICS OR low dose ICS + LABA
Term
Step 4 (persistent asthma): Age 0-4 years
Definition
medium dose ICS + either LABA or Montelukast
Term
Step 4 (persistent asthma): Age 5-11 yrs
Definition
medium dose ICS + LABA
Term
Step 4 (persistent asthma): Age >12 yrs
Definition
medium dose ICS + LABA
Term
Step 5 (persistent asthma) : age 0-4 yrs
Definition
high dose ICS + either LABA or Montelukast
Term
Step 5 (persistent asthma): age 5-11 years
Definition
high dose ICS + LABA
Term
Step 5 (persistent asthma) : age > 12 years
Definition
high dose ICS + LABA; consider Omalizumab for patients with allergies
Term
Step 6 (persistent asthma): age 0-4 yeras
Definition
high dose ICS + oral corticosteroids+ EITHER LABA or Montelukast
Term
Step 6 (persistent asthma) Age 5-11 years
Definition
High dose ICS + LABA+ oral corticosteroid
Term
Step 6 (persistent asthma) Age >12 years
Definition
high dose ICS + LABA+ oral corticosteroids; consider Omalizumab for patients with allergies
Term
Corticosteroids in children
Definition
growth, osteoporosis/fracture, cataracts, adrenal suppression
Term
poorly controlled asthma in pregnancy
Definition
adverse effect on fetus
Term
non teratogenic
Definition
beta 2 agonist, inhaled corticosteroids, leukotriene modifiers, theophyline
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