Answer
Chronic obstructive pulmonary disease (COPD) is the fourth leading cause of death in the United States, affecting 32 million adults. It is also the sixth leading cause of death worldwide. [2]
Patient's age and postbronchodilator FEV1 are the most important predictors of prognosis. Young age and FEV1 greater than 50% of predicted are associated with a good prognosis. Older patients and those with more severe lung disease do worse.
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Media Gallery
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Chronic obstructive pulmonary disease (COPD). Histopathology of chronic bronchitis showing hyperplasia of mucous glands and infiltration of the airway wall with inflammatory cells.
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Chronic obstructive pulmonary disease (COPD). Histopathology of chronic bronchitis showing hyperplasia of mucous glands and infiltration of the airway wall with inflammatory cells (high-powered view).
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Posteroanterior (PA) and lateral chest radiograph in a patient with severe chronic obstructive pulmonary disease (COPD). Hyperinflation, depressed diaphragms, increased retrosternal space, and hypovascularity of lung parenchyma is demonstrated.
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Chronic obstructive pulmonary disease (COPD). A lung with emphysema shows increased anteroposterior (AP) diameter, increased retrosternal airspace, and flattened diaphragms on lateral chest radiograph.
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Chronic obstructive pulmonary disease (COPD). A lung with emphysema shows increased anteroposterior (AP) diameter, increased retrosternal airspace, and flattened diaphragms on posteroanterior chest radiograph.
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Subcutaneous emphysema and pneumothorax.
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