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[Chronic obstructive pulmonary disease: definition and classification of severity]
Micaela Romagnoli1, Leonardo M Fabbri
1Clinica di Malattie dell'Apparato Respiratorio, Università degli Studi di Modena e Reggio Emilia, Modena. romagnoli.micaela@unimo.it
Annali Dell'Istituto Superiore Di Sanita
|April 22, 2004
Summary
Chronic obstructive pulmonary disease (COPD) involves progressive airflow limitation and lung inflammation, often caused by smoking. Diagnosis uses spirometry, with symptoms including cough and shortness of breath.
Area of Science:
- Pulmonology
- Respiratory Medicine
Context:
- Chronic obstructive pulmonary disease (COPD) is a progressive lung disease.
- It is characterized by persistent airflow limitation and abnormal lung inflammation.
- Exposure to noxious particles, especially tobacco smoke, is a primary cause.
Purpose:
- To define the key characteristics of COPD.
- To outline diagnostic criteria for COPD.
- To describe COPD classification and symptomology.
Summary:
- COPD is defined by irreversible airflow limitation and lung inflammation, typically from smoking.
- Diagnosis relies on spirometry, specifically a reduced forced expiratory volume in one second/forced vital capacity ratio (<70%) post-bronchodilator.
- Key symptoms include cough, sputum production, and exertional dyspnea, with severity graded by spirometry.
Impact:
- Provides a clear definition and diagnostic approach for COPD.
- Facilitates understanding of COPD severity classification.
- Distinguishes COPD from asthma, despite potential coexistence.