Obstructive Disorders Flashcards
Affects large bronchi Permanent dilation Destruction bronchial walls LOTS of SPUTUM - often green/yellow Chronic cough, hemoptysis, clubbing
Bronchiectasis
Etiology (Bronchiectasis)
Idiopathic - majority
Genetic:
1) CF (MC overall)
2) IgG deficiency (recurrent sinopulmonary infxn in childhood)
Acquired - recurrent PNA, bact infx (Staph, Kleb, Bordetella), AIDS, TB, IBD (UC>Crohns)
Dx (Bronchiectasis)
CXR (honeycomb/popcorning) Chest CT (dilated bronchi/thickened walls)
Tx (Bronchiectasis)
Underlying cause
Abx for infx (macrolides)
Inhaled bronchodilators (ICS, SABA, LABA)
Chest PT
Asthma C H E R I
Chronic Hyper-responsive Episodic Reversible Inflammatory
RF’s (Asthma)
URI Exercise Atopy Occupation Environment Drugs
Atopy triad
ASA
Asthma
Polyps
4 classifications (Asthma)
Intermittent
Mild persistent
Moderate persistent
Severe persistent
Dx eval (Asthma) Step 1 eval
Spirometer
Before & after SABA
Shows reduced FEV1/FVC ratio
Shows reversibility p SABA
Dx eval (Asthma) Step 2 eval
Bronchoprovocation (methacholine challenge)
If spirometry not diagnostic, but high clin susp
Tx (Asthma)
Step 1: rescue med
Inhaled SABA (albuterol)
Special rescue: Inhaled Anticholinergics (ipratropium) Systemic corticosteroids (pred, methylpred)
Tx (Asthma)
Step 2: maintenance
Inhaled corticosteroid (ICS)
Takes 1 - 2 wks max effectiveness
Rinse & spit
Beclomethasone, budesonide, fluticasone, triamcinalone
Tx (Asthma)
Step 3: Add-on maintenance
Inhaled LABA (black box warning alone) Salmeterol, formoterol LABA + steroid Advair, Symbicort Leukotriene modifiers (for allergen-related) Montelukast
Tx (Asthma):
Last lines
Anti-IgE Immunotherapy Inhaled mast cell stimulators cromolyn - poor efficacy Phosphodiesterase inhibitor theophylline - poor toxicity
Combination of:
1) Chronic bronchitis: inc secretions & cough
2) Emphysema: destruction alveolar-capillary membrane (dec gas exchange)
progressive, gradual decline in FEV1
mucus plugging, airway narrowing
COPD