Management of Stage 2 Hypertension in Patients Requiring Oral Steroids for Asthma
Optimize asthma control with high-dose inhaled corticosteroids (up to 2000 µg beclomethasone equivalent daily) and long-acting bronchodilators before resorting to oral steroids, as systemic corticosteroids can worsen hypertension and should be reserved for acute exacerbations only. 1
Prioritize Inhaled Therapy to Minimize Systemic Steroid Exposure
- Maximize inhaled corticosteroid dosing up to 2000 µg/day beclomethasone equivalent using large volume spacer devices to improve effectiveness and reduce the need for oral steroids 1
- Add salmeterol (long-acting beta-agonist) if overnight symptom relief is required, as it produces 12-hour bronchodilation with minimal additional benefit from increasing inhaled steroid doses 1
- Consider adding ipratropium bromide as adjunctive therapy, particularly for patients with severe symptoms, as it does not cause hypokalemia or worsen hypertension 2
- Ensure proper inhaler technique and compliance before escalating to systemic steroids, as inadequate delivery of inhaled medications is a common pitfall 1
Critical Considerations for Oral Steroid Use in Hypertensive Patients
Hypertension can paradoxically worsen during steroid reduction, not just during high-dose therapy. 3 This is a crucial and often overlooked phenomenon:
- Blood pressure may be normal or high-normal during maximum corticosteroid therapy (1-4 mg/kg/day) 3
- Diastolic pressures can spike to 100-120 mm Hg within 1-8 weeks after starting steroid reduction 3
- This hypertension is resistant to diuretic therapy but responds rapidly to ACE inhibitors 3
- Elevated renin and aldosterone levels drive this phenomenon 3
When Oral Steroids Are Unavoidable
For Acute Exacerbations:
- Use prednisolone 40-60 mg daily (or 1-2 mg/kg/day in children, maximum 60 mg) for adults with moderate to severe exacerbations 1, 2
- Oral administration is as effective as intravenous and less invasive 1, 2
- Limit duration to 5-10 days maximum - no tapering is necessary for courses less than 10 days 1, 2
- Even short courses (3-7 days) are associated with hypertension, loss of bone density, and gastrointestinal complications 4
Monitoring During Steroid Therapy:
- Monitor blood pressure closely during both steroid administration AND reduction phases 3
- Check blood pressure weekly during the first 8 weeks after starting steroid reduction 3
- Have ACE inhibitors readily available if hypertension develops, as diuretics are often ineffective 3
- Consider cumulative annual systemic steroid exposure; 1 gram per year is a clinically relevant threshold for increased adverse effects 4
Hypertension Management Strategy
- Continue or initiate antihypertensive therapy as needed, with ACE inhibitors being the preferred agent if steroid-induced hypertension develops 3
- Avoid abrupt steroid withdrawal in patients on chronic therapy, as this can precipitate adrenal crisis 5, 6
- For patients requiring chronic oral steroids (steroid-dependent asthma), reduce prednisone by 2.5 mg weekly while monitoring lung function (FEV1 or morning PEF), beta-agonist use, and asthma symptoms 5
Alternative Strategies to Reduce Oral Steroid Burden
- Inhaled steroids can allow reduction of oral steroid dosage in steroid-dependent patients, particularly when used with spacer devices 1
- Consider biologic therapies for appropriate patients with severe asthma to reduce systemic steroid requirements 4
- Ensure risk factor reduction and optimize adherence/inhaler technique before escalating therapy 4
Common Pitfalls to Avoid
- Do not assume short courses of oral steroids are safe - even 3-7 day courses cause significant adverse effects including hypertension 4
- Do not rely solely on diuretics for steroid-induced hypertension - ACE inhibitors are more effective 3
- Do not forget to monitor blood pressure during steroid tapering - this is when hypertension often peaks 3
- Do not use sedatives in asthmatic patients, as they are contraindicated and can worsen respiratory depression 2, 7
- Avoid aggressive hydration in older children and adults during exacerbations 2