Pulmonology focuses on diagnosing and treating lung and airway conditions such as asthma, COPD, and pneumonia, as well as overall respiratory health.

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COPD Disease

The symptoms of this lung disease usually appear slowly over many years, so people often think they are just getting older or out of shape. The main symptom is shortness of breath, which gets worse over time. At first, you might only notice it when doing hard activities like climbing stairs. As the disease gets worse, even simple tasks like getting dressed or walking can make you short of breath, and eventually, it can happen even when you are resting. People often say it feels like they have to work harder to breathe or feel like they can’t get enough air. This is often made worse because air gets trapped in the lungs during activity, making it hard to take a full breath. At Liv Hospital, we track how these symptoms change to help decide how advanced the disease is.

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Chronic Cough and Sputum Production

A long-lasting cough is often the first sign of this disease and can start years before breathing problems appear.

  • Smoker’s Cough: Often dismissed as a normal consequence of smoking, this cough is typically productive of sputum.
  • Morning Symptoms: The cough is often worse in the morning, as the patient clears mucus that has accumulated during sleep due to impaired mucociliary clearance.
  • Sputum Characteristics: The sputum is usually mucoid (clear or white) but can become purulent (yellow or green) during exacerbations, indicating infection.
  • Variability: The cough can be better or worse on different days and often gets worse with things like cold air or pollution.
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Wheezing and Chest Tightness

Wheezing and chest tightness are common symptoms, and how bad they are can change from time to time.

  • Audible Sounds: Wheezing is a high-pitched whistling sound produced when air flows through narrowed airways, usually heard during exhalation.
  • Chest Compression: Chest tightness often happens after physical activity and is hard to pinpoint. It may be caused by the chest muscles working harder.
  • Differential Diagnosis: These symptoms can look like asthma, but in this disease, they change less and do not improve as much with inhaler medicines.

Fatigue and Systemic Symptoms

Feeling tired all the time is a common and serious symptom that can make daily life much harder.

  • Energy Cost of Breathing: Breathing takes much more effort because of blocked airways and trapped air, using up a lot of the body’s energy.
  • Systemic Inflammation: Chronic circulating inflammatory cytokines contribute to muscle weakness and a general sense of malaise.
  • Weight Loss: Losing weight and muscle without trying, called cachexia, can happen in severe cases because breathing uses so much energy and the body is inflamed. This is a sign the disease is getting worse.
  • Anorexia: Feeling short of breath while eating can make people eat less.

Tobacco Smoking

Cigarette smoking is the biggest risk factor for this disease. The more someone smokes over time, the higher the risk.

  • Ciliary Damage: Smoke paralyzes the cilia lining the airways, preventing the clearance of mucus and pathogens.
  • Oxidative Stress: The many chemicals in cigarette smoke cause stress and damage to lung tissue, leading to inflammation.
  • Elastase Activation: Smoking brings certain immune cells to the lungs, which release an enzyme called elastase that breaks down the lung’s elastic parts.
  • Secondhand Smoke: Breathing in other people’s smoke also adds to lung irritation and damage.

Occupational and Environmental Exposures

While smoking is the main cause, being exposed to dust, chemicals, or pollution at work or in the environment is also a big risk, especially for people who do not smoke.

  • Dusts and Chemicals: Breathing in dust or chemicals at work for a long time, like coal, silica, or grain dust, or fumes, can irritate and inflame the airways.
  • Biomass Fuel: In many countries, burning wood, animal dung, or crop leftovers for cooking and heating fills homes with smoke, which is a major cause of this disease. This smoke contains many harmful particles and gases.
  • Urban Pollution: High air pollution in cities, especially from particles and ozone, is dangerous for people with lung problems and can cause flare-ups.

Asthma and Airway Hyperreactivity

There is a lot of overlap between asthma and this disease. Adults who have had asthma for a long time are much more likely to develop lasting breathing problems. This type, sometimes called asthma-COPD overlap, leads to more flare-ups and has a different kind of inflammation. Having airways that react strongly to things, called airway hyperreactivity, is also a risk factor, even without asthma.

Lung Growth and Development

Problems that affect lung growth before birth or during childhood can raise the risk of getting this disease as an adult.

  • Low Birth Weight: Infants born with low birth weight may have smaller lungs and fewer alveoli, reducing their physiological reserve.
  • Childhood Infections: Serious lung infections in childhood, like pneumonia or bronchiolitis, can slow lung growth and lower lung function later in life.
  • Nutritional Deficits: Not getting enough good food as a child can slow down lung development.
  • Reduced Peak Lung Function: People who do not reach full lung capacity as young adults are at higher risk, because their lungs start to decline from a lower point as they age.

Genetic Susceptibility

Besides Alpha 1 antitrypsin deficiency, other genes also affect who gets this disease. Not everyone who smokes heavily develops it, which means genetics play a role in how lungs handle damage. Researchers are studying different genes that may make some people more at risk, especially when combined with environmental factors.

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FREQUENTLY ASKED QUESTIONS

Why do I feel more breathless after eating?

A full stomach can press against the diaphragm, restricting its movement and making it harder for the lungs to expand, which can increase the sensation of breathlessness.

Emerging evidence suggests that vaping can cause inflammation and damage to lung tissue similar to smoking, and it is considered a risk factor for developing lung disease.

Yes, long-term exposure to secondhand smoke, air pollution, chemical fumes, or dusts at work, as well as genetic factors, can cause the disease in non-smokers.

Severe weight loss involves the loss of muscle mass, including the muscles used for breathing, which weakens respiratory function and worsens overall health.

Extreme temperatures, both hot and cold, as well as high humidity or high pollution levels, can irritate the airways and worsen symptoms.

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