COPD is more than a lung disease: why heart health matters too
By Dr. Subhasish Jamuda
6/16/20263 min read
When we think about Chronic Obstructive Pulmonary Disease (COPD), we usually think about breathing difficulties, chronic cough, wheezing, and reduced lung function. However, modern research shows that COPD affects much more than the lungs.
A large study published in the Journal of Global Health in 2025 followed nearly 39,000 COPD patients and found that the presence of other medical conditions—especially heart diseases—significantly increases the risk of hospitalizations, severe flare-ups, and even death. (JOGH)
The message is simple:
Treating COPD alone is not enough. We must treat the whole patient.
What Is COPD?
COPD is a long-term lung disease that causes airflow obstruction, making it difficult to breathe.
Common symptoms include:
Shortness of breath
Chronic cough
Excess mucus production
Wheezing
Reduced exercise capacity
Frequent chest infections
Smoking remains the leading cause, but air pollution, biomass fuel exposure, occupational dust, and recurrent respiratory infections also contribute. (JOGH)
What Did the Study Find?
Researchers analyzed data from 38,928 COPD patients across multiple healthcare centers.
Distribution of Patients
Group A (milder symptoms): 30.2%
Group B (more symptoms): 46.4%
Group E (highest risk): 23.5% (JOGH)
Patients in Group E had:
More severe lung damage
More medical complications
Higher hospitalization rates
Highest mortality risk (JOGH)
Why Are Some COPD Patients at Higher Risk?
The biggest reason is comorbidities.
A comorbidity is another disease occurring alongside COPD.
The study identified several conditions that significantly worsen outcomes:
1. Heart Attack History (Myocardial Infarction)
Patients with previous heart attacks had a substantially higher risk of death. (JOGH)
2. Congestive Heart Failure
This was one of the strongest predictors of poor outcomes.
When the heart cannot pump efficiently:
Oxygen delivery decreases
Breathlessness worsens
Hospital admissions increase
Patients with heart failure had significantly higher mortality and exacerbation risks. (JOGH)
3. Other Chronic Lung Diseases
Additional respiratory diseases further increased COPD flare-ups and complications. (JOGH)
Key Numbers from the Study
Among the highest-risk COPD patients (Group E):
22.6% died within five years
Severe lung obstruction was more common
Serious comorbid conditions were significantly higher (JOGH)
Researchers found that Group E patients had:
73% higher risk of death
More than 2 times higher risk of moderate-to-severe exacerbations compared with lower-risk patients. (JOGH)
What Is a COPD Exacerbation?
An exacerbation is a sudden worsening of symptoms.
Signs include:
Increased breathlessness
More coughing
Increased mucus production
Change in mucus color
Fever
Need for emergency treatment
Each exacerbation can permanently reduce lung function and increase future health risks.
Preventing flare-ups is therefore one of the most important goals in COPD care.
Why Heart Health and Lung Health Are Connected
The lungs and heart work together continuously.
When COPD reduces oxygen levels:
The heart works harder.
Blood pressure in lung vessels may rise.
Heart failure can worsen.
Risk of hospitalization increases.
This explains why patients with both COPD and cardiovascular disease often have poorer outcomes than those with COPD alone. (JOGH)
What Should COPD Patients Do?
Stop Smoking
This remains the most effective intervention.
Benefits include:
Slower lung function decline
Reduced flare-ups
Better heart health
Longer life expectancy
Get Regular Health Check-Ups
Do not focus only on lung symptoms.
Regularly monitor:
Blood pressure
Blood sugar
Heart function
Cholesterol levels
Oxygen saturation
Take Medicines Correctly
Many COPD patients stop inhalers when symptoms improve.
This can be dangerous.
Always follow your doctor's advice regarding:
Inhalers
Vaccinations
Pulmonary rehabilitation
Follow-up visits
Stay Physically Active
Even simple activities such as:
Walking
Breathing exercises
Light stretching
can improve endurance and quality of life.
Watch for Warning Signs
Seek medical attention if you notice:
Sudden increase in breathlessness
Chest pain
Swelling in legs
Severe fatigue
Persistent cough with fever
Early intervention can prevent hospitalization.
What This Means for Patients in India
COPD is increasingly common in India due to:
Tobacco exposure
Air pollution
Biomass fuel smoke
Occupational dust exposure
Many patients also suffer from:
Hypertension
Diabetes
Heart disease
This research reinforces an important lesson:
COPD management should not focus only on the lungs. Screening for heart disease and other chronic illnesses should be part of routine care. (JOGH)
Final Thoughts
COPD is a complex disease that affects the entire body. The latest evidence from nearly 39,000 patients shows that heart disease and other medical conditions play a major role in determining outcomes.
The best approach is comprehensive care:
✔ Stop smoking
✔ Use medications regularly
✔ Monitor heart health
✔ Stay active
✔ Seek early treatment for worsening symptoms
By treating both the lungs and associated medical conditions, we can reduce complications, improve quality of life, and help patients live longer, healthier lives. (JOGH)
Author: Dr. Subhasish Jamuda
Reference: Lin CH et al. "Prognostic risk profiling in COPD using GOLD 2023 ABE and comorbidity assessment." Journal of Global Health, 2025. DOI: 10.7189/jogh.15.04152. (JOGH)
By treating both the lungs and associated medical conditions, we can reduce complications, improve quality of life, and help patients live longer, healthier lives.
