Pre-operative Management: Administer Prednisone Before Surgery
This patient requires a short course of oral systemic corticosteroids (prednisone 40 mg daily for 5 days) before his planned CABG surgery to optimize lung function and reduce perioperative complications 1.
Clinical Reasoning
This 62-year-old man has poorly controlled severe persistent asthma based on multiple red flags:
- Requiring reliever therapy 3 times daily (well above the acceptable threshold)
- Multiple exacerbations in the past year
- Recent exacerbation just 2 months ago
- Active wheezing on examination
- Daily symptoms with minimal exertion
Guideline-Based Approach
The Expert Panel Report 3 (EPR-3) guidelines explicitly address pre-operative asthma management 1:
Before surgery, the guidelines recommend:
- Review level of asthma control, medication use, and pulmonary function
- Provide medications before surgery to improve lung function if not well controlled
- A short course of oral systemic corticosteroids may be necessary
The guidelines further specify that for patients receiving oral systemic corticosteroids within the 6 months before surgery (or selected patients on long-term high-dose ICS), give 100 mg hydrocortisone every 8 hours intravenously during the surgical period 1.
Why Each Option is Right or Wrong
Option C (Correct): Prednisone 40 mg daily for 5 days pre-operatively
- Directly addresses poor asthma control before a high-risk procedure
- Reduces airway inflammation proactively
- Decreases risk of perioperative bronchospasm, intubation-triggered bronchoconstriction, and respiratory complications
- Supported by multiple sources emphasizing preoperative optimization 2, 3, 4, 5
Option A: Continue current regimen
- Inadequate - patient is clearly not controlled on current therapy (requiring reliever 3x daily, recent exacerbations)
- Proceeding to surgery with active wheezing and poor control significantly increases risk of life-threatening perioperative bronchospasm
Option B: Hydrocortisone 100 mg intraoperatively only
- This is the intraoperative/perioperative stress-dose steroid recommendation
- Guidelines specify this for patients who have received oral corticosteroids within 6 months OR selected patients on high-dose ICS 1
- Does not address the need to optimize lung function BEFORE surgery
- This patient needs both: pre-operative optimization AND perioperative stress-dose coverage
Option D: Long-acting antimuscarinic 5 days before surgery
- Adding a LAMA might be reasonable for long-term management
- However, 5 days is insufficient time to achieve optimal anti-inflammatory effect
- Does not address the acute need for systemic corticosteroids in poorly controlled asthma
- Not mentioned in surgical preparation guidelines
Surgical Risk Context
Patients with asthma undergoing surgery face specific complications 1:
- Acute bronchoconstriction triggered by intubation
- Hypoxemia and hypercapnia
- Impaired cough effectiveness
- Atelectasis and respiratory infection
For CABG specifically, these risks are amplified due to:
- Prolonged intubation
- Median sternotomy affecting respiratory mechanics
- Cardiopulmonary bypass inflammatory response
Complete Management Plan
Pre-operative (5 days before surgery):
- Prednisone 40 mg daily × 5 days
Perioperative (day of surgery):
- Hydrocortisone 100 mg IV every 8 hours during surgical period
- Rapid taper within 24 hours post-operatively 1
Throughout:
- Continue budesonide-formoterol and montelukast
- Ensure SABA availability
Common Pitfalls to Avoid
- Don't assume current therapy is adequate when clinical indicators show poor control (frequent reliever use, recent exacerbations, active wheezing)
- Don't confuse pre-operative optimization with intraoperative stress-dose steroids - this patient needs both
- Don't delay surgery unnecessarily, but 5 days of systemic steroids is reasonable and evidence-based
- Don't forget to provide stress-dose steroids intraoperatively after giving pre-operative systemic corticosteroids
The answer is C: Administer prednisone 40 mg daily for 5 days before surgery.