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{{Asthma}}
{{Asthma}}
'''Editor(s)-in-Chief:''' [[C. Michael Gibson, M.S., M.D.]] [mailto:mgibson@perfuse.org] Phone:617-632-7753; [[Philip Marcus, M.D., M.P.H.]] [mailto:pmarcus192@aol.com]
{{CMG}}; [[Philip Marcus, M.D., M.P.H.]] [mailto:pmarcus192@aol.com]; {{AE}}


==Overview==
==Overview==
Inhaled [[SABA|β2 agonist]] such as [[albuterol]], is the best drug of choice for acute severe exacerbation of asthma. In case of [[Mild Persistent Asthma|mild]] to [[Moderate Persistent Asthma|moderate]] exacerbations, metered-dose inhalation (MDI) of a [[SABA|β2 agonist]] in conjunction with a [[asthma spacer|spacer]] may be used; however, for severe exacerbations nebulized [[SABA|β2 agonist]] has shown to be effective. In case of severe exacerbation with non-reponsiveness to [[SABA|β2 agonist]] inhalation/[[Asthma anticholinergic therapy|anticholinergic]] therapy, parenteral [[SABA|β2 agonist]] such as [[terbutaline]] may be administered. [[Ipratropium]] may also be tried in cases of severe exacerbation.<ref name="pmid18240881">Urbano FL (2008) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=18240881 Review of the NAEPP 2007 Expert Panel Report (EPR-3) on Asthma Diagnosis and Treatment Guidelines.] ''J Manag Care Pharm'' 14 (1):41-9. PMID: [http://pubmed.gov/18240881 18240881]</ref> [[Steroids|Steroid therapy]] remain the main-stay of therapy in the treatment of acute and sub-acute phase of exacerbation. Steroids speed in the resolution of airway obstruction and prevent a late-phase response; hence, shown to provide highly beneficial outcomes to patients with acute exacerbation presenting to the emergency department.<ref name="pmid1535500">Rowe BH, Keller JL, Oxman AD (1992) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=1535500 Effectiveness of steroid therapy in acute exacerbations of asthma: a meta-analysis.] ''Am J Emerg Med'' 10 (4):301-10. PMID: [http://pubmed.gov/1535500 1535500]</ref><ref name="pmid15072167">Rowe BH, Edmonds ML, Spooner CH, Diner B, Camargo CA (2004) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=15072167 Corticosteroid therapy for acute asthma.] ''Respir Med'' 98 (4):275-84. PMID: [http://pubmed.gov/15072167 15072167]</ref>
Inhaled [[SABA|β2 agonist]], such as [[albuterol]], is the drug of choice for acute severe exacerbation of asthma. In cases of [[Mild persistent asthma|mild]] to [[Moderate persistent asthma|moderate]] exacerbations, metered-dose inhalation (MDI) of a [[SABA|β2 agonist]] in conjunction with a [[asthma spacer|spacer]] may be used. In more severe exacerbations, nebulized [[SABA|β2 agonist]] has been demonstrated to be most effective. In case of severe exacerbation with non- reponsiveness to [[SABA|β2 agonist]] inhalation/[[Asthma anticholinergic therapy|anticholinergic]] therapy, parenteral [[SABA|β2 agonist]] such as [[terbutaline]] may be administered. [[Ipratropium]] may also be utilized in cases of severe exacerbation.<ref name="pmid18240881">Urbano FL (2008) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=18240881 Review of the NAEPP 2007 Expert Panel Report (EPR-3) on Asthma Diagnosis and Treatment Guidelines.] ''J Manag Care Pharm'' 14 (1):41-9. PMID: [http://pubmed.gov/18240881 18240881]</ref> [[Steroids|Steroid therapy]] remains the mainstay of therapy in the treatment of acute and sub-acute phases of exacerbation. Steroids speed in the resolution of airway obstruction and prevent a late-phase response; hence, shown to provide highly beneficial outcomes to patients with acute exacerbation presenting to the emergency department.<ref name="pmid1535500">Rowe BH, Keller JL, Oxman AD (1992) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=1535500 Effectiveness of steroid therapy in acute exacerbations of asthma: a meta-analysis.] ''Am J Emerg Med'' 10 (4):301-10. PMID: [http://pubmed.gov/1535500 1535500]</ref><ref name="pmid15072167">Rowe BH, Edmonds ML, Spooner CH, Diner B, Camargo CA (2004) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=15072167 Corticosteroid therapy for acute asthma.] ''Respir Med'' 98 (4):275-84. PMID: [http://pubmed.gov/15072167 15072167]</ref>


==Emergency Management==
==Emergency Management==
When an asthma attack is unresponsive to a patient's usual medication, other treatments are available to the physician or hospital:<!--
When an asthma attack is unresponsive to a patient's usual medication, other treatments are available to the physician or hospital. These include:<ref name=rodrigo>Rodrigo GJ, Rodrigo C, Hall JB. Acute asthma in adults: a review. ''Chest''. 2004;125(3):1081-102. PMID 15006973</ref>  
  --><ref name=rodrigo>Rodrigo GJ, Rodrigo C, Hall JB. Acute asthma in adults: a review. ''Chest''. 2004;125(3):1081-102. PMID 15006973</ref>  
*[[Oxygen]] to alleviate the [[hypoxia]] (but not the asthma ''per se'') that results from extreme asthma attacks.
*[[Oxygen]] to alleviate the [[hypoxia]] (but not the asthma ''per se'') that results from extreme asthma attacks;
*Nebulized [[salbutamol]] or [[terbutaline]] ([[SABA|short-acting beta-2-agonists]]), often combined with [[ipratropium]] (an [[Asthma anticholinergic therapy|anticholinergic]]).
 
*Nebulized [[salbutamol]] or [[terbutaline]] ([[SABA|short-acting beta-2-agonists]]), often combined with [[ipratropium]] (an [[Asthma anticholinergic therapy|anticholinergic]]);
 
*Systemic [[steroids]], oral or intravenous ([[prednisone]], [[prednisolone]], [[methylprednisolone]], [[dexamethasone]], or hydrocortisone). Some research has looked into an alternative inhaled route.<ref name="pmid15764724">Rodrigo GJ (2005) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=15764724 Comparison of inhaled fluticasone with intravenous hydrocortisone in the treatment of adult acute asthma.] ''Am J Respir Crit Care Med'' 171 (11):1231-6. [http://dx.doi.org/10.1164/rccm.200410-1415OC DOI:10.1164/rccm.200410-1415OC] PMID: [http://pubmed.gov/15764724 15764724]</ref>
*Systemic [[steroids]], oral or intravenous ([[prednisone]], [[prednisolone]], [[methylprednisolone]], [[dexamethasone]], or hydrocortisone). Some research has looked into an alternative inhaled route.<ref name="pmid15764724">Rodrigo GJ (2005) [http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=15764724 Comparison of inhaled fluticasone with intravenous hydrocortisone in the treatment of adult acute asthma.] ''Am J Respir Crit Care Med'' 171 (11):1231-6. [http://dx.doi.org/10.1164/rccm.200410-1415OC DOI:10.1164/rccm.200410-1415OC] PMID: [http://pubmed.gov/15764724 15764724]</ref>
*Other [[bronchodilators]] that are occasionally effective in cases of non-responsiveness to initial drugs include:
*Other [[bronchodilators]] that are occasionally effective in cases of non-responsiveness to initial drugs include:
:*Intravenous [[salbutamol]]
:*Intravenous [[salbutamol]].
:*Nonspecific beta-agonists, injected or inhaled ([[epinephrine]], isoetharine, [[isoproterenol]], [[metaproterenol]]);
:*Nonspecific beta- agonists, injected or inhaled ([[epinephrine]], isoetharine, [[isoproterenol]], [[metaproterenol]]).
:* Anticholinergics, IV or nebulized, with systemic effects ([[glycopyrrolate]], [[atropine]], [[ipratropium]]);
:* Anticholinergics, IV or nebulized, with systemic effects ([[glycopyrrolate]], [[atropine]], [[ipratropium]]).
:*[[Bronchodilator#Theophylline|Methylxanthines]] ([[theophylline]], [[aminophylline]]);
:*[[Bronchodilator#Theophylline|Methylxanthines]] ([[theophylline]], [[aminophylline]]).
:*Inhalation anesthetics that have a bronchodilatory effect ([[isoflurane]], [[halothane]], [[enflurane]]);
:*Inhalation anesthetics that have a bronchodilatory effect ([[isoflurane]], [[halothane]], [[enflurane]]).
:*The dissociative anaesthetic [[ketamine]], often used in [[endotracheal tube]] induction
:*The dissociative anesthetic [[ketamine]], often used in [[endotracheal tube]] induction.
:*[[Magnesium sulfate]], intravenous; and
:*[[Magnesium sulfate]], intravenous.
 
*[[Intubation]] and [[mechanical ventilation]], for patients in or approaching [[respiratory arrest]].
*[[Intubation]] and [[mechanical ventilation]], for patients in or approaching [[respiratory arrest]].
*[[Heliox]], a mixture of helium and oxygen, may be used in a hospital setting. It has a more laminar flow than ambient air and moves more easily through constricted airways.
*[[Heliox]], a mixture of helium and oxygen, may be used in a hospital setting. It has a more laminar flow than ambient air and moves more easily through constricted airways.


==References==
==References==
{{reflist|2}}
{{reflist|2}}
{{WH}}
{{WS}}


[[Category:Disease]]
[[Category:Pulmonology]]
[[Category:Pulmonology]]
[[Category:Immunology]]
[[Category:Emergency medicine]]
[[Category:Emergency medicine]]
[[Category:Intensive care medicine]]
[[Category:Mature chapter]]
 
[[Category:Up-To-Date]]
[[Category:Up-To-Date pulmonology]]
 
{{WH}}
{{WS}}

Latest revision as of 20:30, 29 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Philip Marcus, M.D., M.P.H. [2]; Associate Editor(s)-in-Chief:

Overview

Inhaled β2 agonist, such as albuterol, is the drug of choice for acute severe exacerbation of asthma. In cases of mild to moderate exacerbations, metered-dose inhalation (MDI) of a β2 agonist in conjunction with a spacer may be used. In more severe exacerbations, nebulized β2 agonist has been demonstrated to be most effective. In case of severe exacerbation with non- reponsiveness to β2 agonist inhalation/anticholinergic therapy, parenteral β2 agonist such as terbutaline may be administered. Ipratropium may also be utilized in cases of severe exacerbation.[1] Steroid therapy remains the mainstay of therapy in the treatment of acute and sub-acute phases of exacerbation. Steroids speed in the resolution of airway obstruction and prevent a late-phase response; hence, shown to provide highly beneficial outcomes to patients with acute exacerbation presenting to the emergency department.[2][3]

Emergency Management

When an asthma attack is unresponsive to a patient's usual medication, other treatments are available to the physician or hospital. These include:[4]

References

  1. Urbano FL (2008) Review of the NAEPP 2007 Expert Panel Report (EPR-3) on Asthma Diagnosis and Treatment Guidelines. J Manag Care Pharm 14 (1):41-9. PMID: 18240881
  2. Rowe BH, Keller JL, Oxman AD (1992) Effectiveness of steroid therapy in acute exacerbations of asthma: a meta-analysis. Am J Emerg Med 10 (4):301-10. PMID: 1535500
  3. Rowe BH, Edmonds ML, Spooner CH, Diner B, Camargo CA (2004) Corticosteroid therapy for acute asthma. Respir Med 98 (4):275-84. PMID: 15072167
  4. Rodrigo GJ, Rodrigo C, Hall JB. Acute asthma in adults: a review. Chest. 2004;125(3):1081-102. PMID 15006973
  5. Rodrigo GJ (2005) Comparison of inhaled fluticasone with intravenous hydrocortisone in the treatment of adult acute asthma. Am J Respir Crit Care Med 171 (11):1231-6. DOI:10.1164/rccm.200410-1415OC PMID: 15764724

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