Cardinal Signs and Symptoms of COPD

Primary Symptoms

The American Thoracic Society and European Respiratory Society suggest that progressive dyspnea is the most characteristic symptom of COPD, typically developing gradually over many years and eventually limiting daily activities 1, 2
Chronic cough, often productive and worse in the morning, is present in most patients and sometimes dominates the clinical picture 2, 3
Regular sputum production for 3 months or more in 2 consecutive years is the classic definition of chronic bronchitis, a common feature in COPD 1, 3
Wheezing may vary between days and throughout a single day 1

Wheezing during tidal breathing is a useful indicator of airflow limitation 2, 4
Prolonged forced expiratory time (>5 seconds) is another useful indicator of airflow limitation 4
Diminished breath sounds may be elicited but is a poor guide to the degree of airflow limitation 4
Reduced ribcage expansion and diaphragmatic excursion indicates hyperinflation 4
Hyperresonance on percussion indicates air trapping 4

Use of accessory respiratory muscles (e.g., sternomastoid) implies severe airflow obstruction 4
Pursed-lip breathing usually indicates severe airflow obstruction 4
Central cyanosis is seen with significant hypoxemia, though sensitivity is low 4
Weight loss and anorexia are common in advanced COPD 1, 3
Signs of cor pulmonale, including peripheral edema, raised jugular venous pressure, hepatic enlargement, and signs of pulmonary hypertension, may be present 4

Post-bronchodilator fixed FEV1/FVC ratio <0.70 is diagnostic of COPD 1
The sensitivity of physical examination for detecting or excluding moderately severe COPD is poor, and reproducibility of physical signs is variable 4

Increased breathlessness is a key indicator of exacerbation, however, this fact is from Praxis Medical Insights, a similar fact from European Respiratory Journal is: Tachypnea and tachycardia are used to assess exacerbation severity 4
Respiratory muscle dysfunction or fatigue is evidenced by uncoordinated ribcage motion or paradoxical movement of the abdominal wall during inspiration 4

Smoking history is a major risk factor, as most patients are long-term cigarette smokers 2
Age is a risk factor, as patients are typically more than 40 years of age when presenting with breathlessness 2
History of repeated respiratory infections, especially during winter months, is a risk factor 2

Physical signs alone are poor guides to the severity of airflow limitation 4
The absence of wheezing or other physical signs does not exclude COPD 4
COPD may be confused with chronic asthma in older subjects; a history of heavy smoking, evidence of emphysema on imaging, decreased diffusing capacity, and chronic hypoxemia favor the diagnosis of COPD 5

The American Thoracic Society recommends that a clinical diagnosis of chronic bronchitis can be made based on symptoms alone when the classic symptom definition is met, significant smoking history is present, other causes have been excluded, and the patient refuses or cannot perform spirometry 6, 7, 8, 9
A smoking history >40 pack-years has the highest likelihood ratio (LR 12) for identifying airflow obstruction, according to the American College of Physicians 10
The combination of three findings essentially confirms COPD (LR 156): smoking history >55 pack-years, wheezing on auscultation during examination, and patient self-reported wheezing, as recommended by the American College of Physicians 10
The European Respiratory Society suggests that most patients with COPD are long-term cigarette smokers, typically over age 40 8, 11

The European Respiratory Society recommends assessing severity clinically by breathlessness level, frequency of respiratory infections, impact on daily activities, and presence of complications 8, 11, 12
The American Thoracic Society suggests using standardized questionnaires to assess exercise capacity 8

The American Thoracic Society recommends continuing to encourage spirometry at future visits, as it remains essential for confirming the diagnosis, assessing severity, and guiding treatment decisions 9
The European Respiratory Society suggests not delaying initiating smoking cessation interventions and appropriate symptomatic treatment based on the clinical diagnosis 8, 11, 12