TY - JOUR
T1 - Airways obstruction in patients with long-term asthma consistent with 'irreversible asthma'
AU - Backman, Kenneth S.
AU - Greenberger, Paul A.
AU - Patterson, Roy
N1 - Funding Information:
Supported by the Ernest S. Bazley Grant to Northwestern Memorial Hospital and Northwestern University Medical School.
PY - 1997
Y1 - 1997
N2 - Objective: To describe a series of eight patients with long-term asthma and pulmonary function consistent with 'end-stage,' irreversible obstruction. Design: Retrospective descriptive analysis of patients with severe asthma. Setting: A university-based allergy-immunology service with a large population of corticosteroid-dependent patients with asthma. Patients: Eight patients with long-standing asthma and apparently irreversible airways obstruction despite long-term oral and inhaled corticosteroid therapy. Measurements: Pulmonary function data, radiographic studies including chest radiograph and high-resolution CT of the chest, and serologic analysis to rule out allergic bronchopulmonary aspergillosis and α1-antitrypsin deficiency had been performed as indicated, and these results were obtained through chart review. Results: The age of the patients ranged from 41 to 58 years, with a mean duration of asthma of 39 years (SD= 12.4 years). No patient had evidence of any other pulmonary disease process. The mean duration of daily or alternate-day oral corticosteroid treatment was 15.8 years (SD = 11.8 years). Despite intensive pharmacotherapy, all patients had an FEV1 57% (42±12%) with marked small airways disease as reflected in the forced expiratory flow between 25% and 75% of the FVC. Three of the eight patients demonstrated an accelerated decline in FEV1 despite continuous systemic corticosteroids. Conclusions: We have described a series of eight patients with long-standing asthma who demonstrate irreversible airways obstruction despite long-term systemic and inhaled corticosteroids. The term 'end-stage asthma' or irreversible asthma might be applied to these patients in whom fixed obstruction has occurred in the absence of other pulmonary diseases.
AB - Objective: To describe a series of eight patients with long-term asthma and pulmonary function consistent with 'end-stage,' irreversible obstruction. Design: Retrospective descriptive analysis of patients with severe asthma. Setting: A university-based allergy-immunology service with a large population of corticosteroid-dependent patients with asthma. Patients: Eight patients with long-standing asthma and apparently irreversible airways obstruction despite long-term oral and inhaled corticosteroid therapy. Measurements: Pulmonary function data, radiographic studies including chest radiograph and high-resolution CT of the chest, and serologic analysis to rule out allergic bronchopulmonary aspergillosis and α1-antitrypsin deficiency had been performed as indicated, and these results were obtained through chart review. Results: The age of the patients ranged from 41 to 58 years, with a mean duration of asthma of 39 years (SD= 12.4 years). No patient had evidence of any other pulmonary disease process. The mean duration of daily or alternate-day oral corticosteroid treatment was 15.8 years (SD = 11.8 years). Despite intensive pharmacotherapy, all patients had an FEV1 57% (42±12%) with marked small airways disease as reflected in the forced expiratory flow between 25% and 75% of the FVC. Three of the eight patients demonstrated an accelerated decline in FEV1 despite continuous systemic corticosteroids. Conclusions: We have described a series of eight patients with long-standing asthma who demonstrate irreversible airways obstruction despite long-term systemic and inhaled corticosteroids. The term 'end-stage asthma' or irreversible asthma might be applied to these patients in whom fixed obstruction has occurred in the absence of other pulmonary diseases.
KW - End-stage asthma
KW - Irreversible obstruction
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U2 - 10.1378/chest.112.5.1234
DO - 10.1378/chest.112.5.1234
M3 - Article
C2 - 9367462
AN - SCOPUS:0030694273
SN - 0012-3692
VL - 112
SP - 1234
EP - 1240
JO - Diseases of the chest
JF - Diseases of the chest
IS - 5
ER -