- Studies concluded that systemic (oral or intravenous) glucocorticoids reduced treatment failure
- increased the rate of improvement in lung function and symptoms
- more rapid increase in FEV1, fewer withdrawals, and a significantly shorter hospital stay
- benefits of glucocorticoids appear to be greatest in the first 72 hours after administration
Outpatient exacerbations:
- small, but significant clinical effect
- Patients who received prednisone (40mg for 10 days) were less likely to return with increasing dyspnea within 30 days (27 versus 43 percent). In addition to a lower rate of relapse, prednisone therapy was associated with decreased dyspnea
Hospitalised Patients:
- Rate of treatment failure was about 10 percent lower
- Shorter hospital stay and more rapid improvement of FEV1
- No difference between efficacy of oral and IV
Adverse effect of short term therapy:
- Only hyperglycemia was more common in the glucocorticoid-treated groups
- Patients who received the eight-week course of glucocorticoids had a tendency to have more severe infections, particularly pneumonia
- Patients treated with short-term, high-dose glucocorticoids for septic shock have a significantly increased risk of secondary bacterial infection and an increased mortality
Selection criteria:
- Currently, no criteria have been established for deciding which patients benefit most from corticosteroid therapy.
- Thus, all patients without serious contraindications should receive systemic corticosteroids for severe exacerbations of COPD
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Duration:
- No more than two weeks of therapy are needed; shorter courses may achieve adequate outcomes but need further study.
- Extending the duration of therapy beyond 2 weeks and using higher doses does not confer additional benefits, but can increase the risk of short-term side effects such as hyperglycemia and insomnia
- If steroid therapy is continued for longer than 2 weeks, a tapering schedule should be employed to avoid hypothalamic-pituitary-adrenal axis suppression
- As a rough guide, full dose therapy (eg, prednisone 40 mg daily) is given for 5 to 14 days
Treatment:
- a compromise approach to dosing; administer one or more high doses (eg, methylprednisolone 80 to 125 mg) in the first 24 hours with rapid conversion to lower-dose therapy (prednisone 40 to 60 mg per day) if the patient is improving.
- IV glucocorticoids are typically administered to patients who present with a severe exacerbation, who respond poorly to oral glucocorticoids, unable to take oral medication, or who may have impaired absorption due to decreased splanchnic perfusion (eg, patients in shock).
- A reasonable alternative is to use a regimen of prednisone or its equivalent in doses of 30 to 60 mg per day for the duration of therapy
futher reading:
References:
- http://www.aafp.org/afp/2010/0301/p607.html
- http://respiratory-research.com/content/15/1/38
- http://www.patient.co.uk/doctor/acute-exacerbations-of-copd
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2111219/
- www.uptodate.com
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