-
Asthma Rx
- Control triggers (tobacco, pollutants, sulfite sensitivity/foods, BBls, ASA, NSAIDs)
- Control contributing conditions (GERD, Rhinitis
-
Intermittent Asthma
- Daytime asthma Sx 2 or fewer days/week
- 2 or fewer nocturnal awakenings/month
- Use of SABA to relief Sx fewer than 2 times/week
- NO interference with nl activities between exacerbations
- Normal FEV1 between exacerbations ( greater or equal to 80% of predicted nl)
- Normal FEV1/FVC ratio between exacerbations (based on age-adjusted values)
- 1 or NO exacerbations needing po steroids/year
-
Intermittent Asthma -Rx
- STEP 1: Inhaled SABA
- prn Sx
- If trigger of Sx can be predicted (e.g. exercise-induce), 10 mnts gefore exposure to trigger
-
Mild Persistent Asthma
- Sx >2 times/week (but NOT daily)
- 3-4 nocturnal awakenings/month
- Use of SABA for Sx relief >2/week (but NOT daily)
- MINOR interference with nl activities
- Normal FEV1 between exacerbations (greater or equal to 80% of predicted nl)
- Normal FEVI/FVC ratio between exacerbations (based on age-adjusted values)
- 2 or more exacerbations needing po steroids/years
-
Mild Persistent Asthma -Rx
- STEP 1: Inhaled SABA
- prn Sx
- If trigger of Sx can be predicted (e.g. exercise-induce), 10 mnts gefore exposure to trigger
STEP 2: Daily long-term controller medication = LOW-dose Inhaled Glucocorticoid
-
Moderate Persistent Asthma
- DAILY asthma Sx
- >1 noctural awakening/week
- DAILY need for SABA for Sx relief
- Some limitation in nl activity
- LOW FEV1 (60-80% of predicted nl)
- LOW FEV1/FVC ratio (based on age-adjusted values)
- 2 or more exacerbations needing po steroids/years
-
Moderate Persistent Asthma -Rx
- STEP 3:
- LOW-dose Inhaled Glucocorticoid + LABA
- or
- MEDIUM-dose Inhaled Glucocorticoid
-
Severe Persistent Asthma
- Asthma Sx throughout the day
- NIGHTLY nocturnal awakenings
- Need for SABA for Sx relief several times/day
- EXTREME limitation in nl activity
- VERY LOW FEV1 (,60% of predicted nl)
- LOW FEV1/FVC ratio (based on age-adjusted values)
- 2 or more exacerbations needing po steroids/year
-
Severe Persistent Asthma -Rx
STEP 4: MEDIUM-dose Inhaled Glucocorticoid + LABA
STEP 5: HIGH-dose Inhaled Glucocorticoid + LABA
-
ACUTE asthma exacerbation -definition
Increased in Sx and/or Decreased Peak Expiratory Flow
-
ACUTE asthma EXACERBATION -Initiation of HOME Rx during an
- SELF-administered:
- SABA 2-6 puffs from metered dose inhaler, repeat every 20 mnts prn
- or
- SABA nebulizer treatment, repeat after 20 mnts prn
-
ACUTE asthma EXACERBATION -EMERGENCY Rx INDICATIONS
- Use of accessory mx of respiration
- Brief, fragmented speech
- Inability to lie supine
- Profound diaphoresis
- Agitation
Severe Sx refractory to initial ER Rx
Predictors of Imminent Respiratory ARREST = Inability to maintain resp effort, Cyanosis, AMS
-
ACUTE asthma EXACERBATION -EMERGENCY Rx
Inhaled SABA: Albuterol 2.5-5mg every 20mnts x 3 by nebulizer or 4-8 puffs by metered dose inhaler with spacer for up to 4h
Oxygen: Sufficient to maintain SaO2 at least of 92% (>95% in prego)
IV access: bolus nl saline if prolonged episode to replace insensible losses
Ipratropium Bromide: 500mcg by nebulizer every 20mnts x 3 or 8 puffs by metered dose inhaler with spacer every 20mnts for up to 3 hrs
Systemic Glucocorticoids: Prednisone 40-60mg po. If impending respiratory failure, Methylprednisolone 60-125mg IV
Magnesium sulfate: If life-threatening exacerbation or refractory severe exacerbation after 1 hour of intensive bronchodilator, 2g IV over 20 mnts
-
Ashtma Rx -Inhaled Short-Acting Beta Agonists (SABA)
- Mainstay of Bronchodilator Rx
- PNR use for Sx relief
- Rx for all asthma levels
- Albuterol (Proventil-HFA, Ventolin-HFA, ProAir-HFA) 90mcg/puff. 2 puffs every 4-6h prn or 10mnts before exercise.
- Levalbuterol (Xopenex-HFA) 45mcg/puff. 2 puffs every 4-6h prn.
- Metaproterenol
- Pirbuterol
-
Asthma Rx -Inhaled glucocorticoids
- Agents of choice for Persistent asthma. Rx for PERSISTENT MILD, MODERATE, and SEVERE asthma.
- DAILY long-term controller medication
- Inhaled delivery for Persistent Mild-Severe asthma
- PO/IV delivery for ER Rx of acute asthma exacerbation
Mometasone ( Nasonex): ONCE-daily dosing. 2 prays (100mcg) in each nostril qd. Prevention: 2 sprays (100mcg) in each nostril qd, starting 2-4 weeks before pollen season.
Budesonide ( Rhinocort Aqua): Safe for PREGO.
-
Asthma Rx -Combination Inhaled Glucocorticoid + LABA
For treatment of Persistent MODERATE-SEVERE asthma
Budesonide/Formoterol HFA (Symbicort): Reliever and Controller med. 80mcg/4.5mcg 2 puffs bid. 160mcg/4.5mcg 2 puffs bid.
Mometasone/Formoterol HFA: 100mcg/5mcg 2 puffs bid. 200mcg/5mcg 2 puffs bid.
Fluticasone/Salmeterol HFA (Advair Diskus, Advair HFA): 45mcg/21mcg 2 puffs bid. 115mcg/21mcg 2 puffs bid. 230mcg/21mcg 2 puff bid.
Fluticasone/Salmeterol DPI: 100mcg/50mcg 1 inhalation bid. 250mcg/50mcg 1 inhalation bid. 500mcg/50mcg 1 inhalation bid.
-
Example of Asthma Regimen -Intermittent asthma
- Control triggers
- Control contributing conditions
Albuterol (Proventil-HFA, Ventolin-HFA, ProAir-HFA) 90mcg/puff 2 puffs every 4-6h prn or 10mnts before exercise
-
Example of Asthma Regimen -Persistent Mild asthma
- Control triggers
- Control contributing conditions
Albuterol (Proventil-HFA, Ventolin-HFA, ProAir-HFA) 90mcg/puff 2 puffs every 4-6h prn or 10mnts before exercise
- Maintenance medication: Mometasone (Nasonex):
ONCE-daily dosing. 2 prays (100mcg) in each nostril qd
-
Example of Asthma Regimen -Persistent MODERATE asthma
- Control triggers
- Control contributing conditions
Combination Inhaled Glucocorticoid/LABA = Budesonide/Formoterol HFA (Symbicort): Reliever and Controller med. 80mcg/4.5mcg 2 puffs bid.
-
Example of Asthma Regimen -Persistent SEVERE asthma
- Control triggers
- Control contributing conditions
Combination Inhaled Glucocorticoid/LABA = Budesonide/Formoterol HFA (Symbicort): Reliever and Controller med. 160mcg/4.5mcg 2 puffs bid.
|
|