21. Emphysema symptoms in COPD

Emphysema is so common in COPD that people usually confuse the terms and think COPD is the same as emphysema. However, it is only a part of the triad of COPD. Emphysema is the most common respiratory complication in smokers. Tobacco smoking for many years causes changes in the airways and the lung tissue enclosed in the spectrum of emphysema.
The most important signs and symptoms of emphysema in COPD include: