Follow-up of Asthma
All asthma patients require structured follow-up with their primary care physician within 1 week of any acute exacerbation or hospital discharge, followed by specialist respiratory review within 4 weeks, with routine monitoring every 1-6 months depending on severity. 1, 2, 3
Immediate Post-Discharge Requirements
Before any patient leaves the hospital or emergency department, several non-negotiable criteria must be met to prevent relapse and readmission:
- Patients must be clinically stable on discharge medications for at least 24 hours before leaving the hospital 1, 2, 3
- Peak expiratory flow (PEF) must exceed 75% of predicted or personal best value with diurnal variability less than 25% 1, 2
- Inhaler technique must be directly observed, verified, and documented in the medical record 1, 2, 3
- Every patient must receive their own peak flow meter with demonstrated ability to use it correctly 1, 2
- A written self-management action plan is mandatory, specifying exact PEF values at which to increase treatment, call their physician, or return to the emergency department 1, 2, 3
The British Thoracic Society emphasizes that failure to provide these elements—particularly the written action plan—is among the most preventable causes of asthma deaths and readmissions. 1, 2
Mandatory Medication Adjustments at Discharge
Discharge medications must be optimized to prevent recurrence:
- Oral corticosteroids (prednisolone 30-60 mg daily for adults, 1-2 mg/kg for children with maximum 40 mg) for 1-3 weeks or longer in chronic cases 1, 2
- Inhaled corticosteroids at a higher dose than pre-admission levels, started at least 48 hours before discharge 1, 2
- Nebulizers must be replaced by standard metered-dose inhalers with spacers 24-48 hours before discharge unless home nebulizer therapy is specifically indicated 1, 2
- Short-acting β-agonists for rescue use only, not as monotherapy 4, 5
The European Respiratory Society guidelines make clear that discharging patients before 24 hours on these medications significantly increases relapse risk, and failing to increase inhaled corticosteroid doses above pre-admission levels leads to treatment failure. 1, 2
Structured Follow-Up Schedule
Acute Exacerbation Follow-Up
After any emergency department visit or hospitalization:
- Primary care visit within 1 week to assess recovery, verify inhaler technique, and adjust maintenance therapy 1, 2, 3
- Respiratory specialist appointment within 4 weeks to optimize long-term control and prevent future exacerbations 1, 2, 3
- Home follow-up within 48 hours for patients treated at home without hospitalization 1
Routine Chronic Asthma Follow-Up
For stable patients on maintenance therapy:
- Every 1-6 months depending on asthma severity and control 1
- Spirometry at initial assessment and every 1-2 years after symptoms and peak flow stabilize 1
- Research evidence suggests patients with moderate persistent asthma on stable inhaled corticosteroids do not require visits more frequently than every 6 months 6
The National Asthma Education and Prevention Program emphasizes that follow-up intervals should be individualized based on severity, but the British Thoracic Society data shows that early reassessment within one week identifies patients at risk for recurrent exacerbation. 1, 3
Essential Components of Each Follow-Up Visit
At every follow-up appointment, systematically address:
- Review medication adherence and actual inhaler technique by direct observation, as poor technique renders treatment ineffective 1, 2, 3
- Measure peak expiratory flow or perform spirometry for objective assessment 1
- Assess symptom frequency, nocturnal awakenings, and rescue inhaler use to determine control level 1, 7
- Review and update the written self-management action plan based on current medications and PEF values 1, 2, 8
- Step up or step down therapy according to current control, following a stepwise approach 1, 7
Stepwise Medication Adjustments
Based on the 2020 National Asthma Education and Prevention Program guidelines and British Thoracic Society recommendations:
Step 1 (Intermittent Asthma):
- As-needed short-acting β-agonists only 9
Step 2 (Mild Persistent Asthma):
- Daily low-dose inhaled corticosteroids plus as-needed SABA, or as-needed concomitant ICS and SABA therapy 9
Step 3 (Moderate Persistent Asthma):
- Low-dose ICS-formoterol as single maintenance and reliever therapy (preferred) 9
Step 4 (Moderate-Severe Persistent Asthma):
- Medium-dose ICS-formoterol for both daily and as-needed therapy 9
Step 5 (Severe Persistent Asthma):
- Add long-acting muscarinic antagonist to ICS-formoterol therapy 9
Critical Pitfalls to Avoid
Several common errors lead to preventable morbidity and mortality:
- Never discharge without verifying inhaler technique, as this is a major cause of treatment failure 2, 3
- Never provide only verbal instructions—written action plans are essential and verbal instructions alone contribute to preventable exacerbations 2, 3
- Never delay follow-up beyond one week after an acute exacerbation, as this identifies high-risk patients 2, 3
- Never continue oral corticosteroids or taper the dose if asthma is worsening 1
- Never use short-acting β-agonists as monotherapy for persistent asthma, as overreliance on bronchodilators without anti-inflammatory therapy increases mortality risk 4
Additional Monitoring and Preventive Measures
- Annual influenza vaccination for all patients with persistent asthma 1
- Pneumococcal vaccination before discharge for hospitalized patients, as asthma is a high-risk condition 2
- Assess and address environmental triggers including tobacco smoke, allergens, and occupational exposures 1, 9
- Evaluate for comorbid conditions (allergic rhinitis, sinusitis, gastroesophageal reflux) when symptoms persist despite medication adjustments 1
Criteria for Specialist Referral
Refer to a respiratory specialist when: