Lungs and airways - diseases and problems

Lungs and airways - Diseases and symptoms | Recetas Medicas

The lungs are important organs in the human body whose main task is to supply the body with oxygen and get rid of carbon dioxide. Both the lungs and airways can suffer from various diseases and conditions that disrupt their function and lead to various symptoms. Here we go through common lung diseases and respiratory problems; symptoms, causes and treatment.

Function of the lungs and airways

The lungs are an important part of our respiratory system. When we breathe in, the air moves down through the nose or mouth, further through the trachea and then branches into two large tubes, called bronchi, one to each lung. The bronchi further divide into smaller airways called bronchioles, which ultimately lead to small air sacs, or alveoli. It is here, in the alveoli, that the gas exchange between the air we breathe and the blood takes place. In the alveoli, the oxygen from the air passes into the blood in the small blood vessels called capillaries. At the same time, carbon dioxide, which is a waste product from the body's energy production, is moved from the blood back to the alveoli. When we exhale, the carbon dioxide leaves the body.

The lungs also contribute to regulating the pH of the blood by controlling the amount of carbon dioxide that accompanies exhalation. They also protect against infections and harmful particles that enter the body with inhaled air.

Breathing is automatically controlled by a part of the brain called the respiratory center. This part of the brain receives ongoing information about the body's levels of oxygen and carbon dioxide from sensors in the blood, and adjusts breathing as needed. This system ensures that all the body's tissues receive enough oxygen and that excess carbon dioxide is effectively removed from the body.

The lungs' ability to perform all these functions can be impaired by various disease states or by exposure to irritating substances. Breathing is closely related to, for example, stress levels, blood pressure and pain experiences, and therefore both physical and mental health can be affected by problems in the respiratory tract.

Common symptoms of lung diseases

The symptoms of lung diseases vary depending on the nature and severity of the disease. Here are some common symptoms from the lungs and airways:

• Shortness of breath and shortness of breath: Shortness of breath is a feeling of not getting enough air. It can be more noticeable during physical exertion, but it can also be a symptom of various lung diseases.
• Coughing: Coughing is a reflex that helps clear the airways of mucus or foreign particles. It can be both an acute and chronic condition depending on the cause. Cough can occur with or without mucus.
• Wheezing or wheezing: Often a sign of airway congestion.
• Chest pain: Especially with deep breaths, this symptom can occur.

Examples of lung diseases and problems

Here is a list of common diseases and conditions that can affect the lungs and airways:

• Asthma: A chronic disease characterized by inflammation and hypersensitivity of the airways, leading to recurrent episodes of shortness of breath and coughing. Treatment often includes both short-acting and long-acting drugs to relieve symptoms and prevent future attacks.
• Covid-19: A viral infection caused by SARS-CoV-2 that can lead to severe breathing problems and pneumonia. Symptoms range from mild to severe.
• Cystic fibrosis: A genetic disease that causes thick mucus in the lungs, leading to repeated lung infections and reduced lung function over time.
• Whooping cough: A highly contagious bacterial infection characterized by intense coughing fits and can be particularly dangerous for young children.
• COPD (Chronic Obstructive Pulmonary Disease): Often related to prolonged exposure to harmful particles or gases, such as tobacco smoke. COPD is a progressive disease that leads to reduced lung function and shortness of breath.
• Legionella: A bacterium that causes Legionnaires' disease, a form of pneumonia that can occur after inhaling contaminated aerosols from, for example, air conditioners.
• Bronchitis: Inflammation of the bronchi that often leads to coughing, mucus production and sometimes wheezing.
• Lung cancer: One of the most serious lung diseases, often caused by smoking or prolonged exposure to irritants.
• Pneumonia: An infection that fills the alveoli with fluid, making it difficult to breathe. Can be caused by both bacteria and viruses.
• Pleurisy: Inflammation of the tissue surrounding the lungs (pleura), which can cause sharp chest pain, especially with deep breaths.
• Mycoplasma: A type of bacteria that causes milder forms of pneumonia. Can affect all ages but is most common in young adults and school children.
• RS virus: A common cause of respiratory infections in young children that can lead to serious breathing problems, especially in infants and children with underlying health problems.
• Sarcoidosis: A disease in which inflammatory conditions lead to small clumps of cells in the lungs or other organs, which can affect their function.
• Sleep apnea: A condition where breathing stops temporarily during sleep, which leads to repeated awakenings and reduced sleep quality.
• Tuberculosis: A serious bacterial infection that mainly affects the lungs and can cause prolonged cough, fever and weight loss.

Treatment and management of lung diseases

The treatment of lung diseases varies depending on the nature and severity of the disease. Here are common treatment methods:

• Medication: Use of anti-inflammatory drugs, bronchodilators, antibiotics or antiviral agents, depending on what is causing the disease.
• Lifestyle changes: Especially for those with COPD or asthma, it may be important to stop smoking, increase physical activity and avoid allergens.
• Oxygen therapy: For people with severely impaired lung function, supplemental oxygen may be necessary to facilitate breathing.
• Physical therapy: Breathing exercises can help strengthen the lungs and improve breathing capacity.

Preventive measures

To reduce the risk of lung diseases, it is important to:

• Avoid smoking: Active and passive smoking are among the main causes of lung disease.
• Maintain good hand hygiene: Important to prevent infections, especially during flu and cold season.
• Regular exercise: Improves lung capacity and overall health.

When should I seek care?

If you experience symptoms such as continuous coughing, difficulty breathing, unusual wheezing or wheezing sounds when you breathe, or chest pain, it is important that you seek medical attention. Although these symptoms may be mild and manageable, they may be signs of underlying lung disease that requires treatment. You should pay particular attention if the symptoms are persistent or worsen over time.

If you notice that you become unusually tired, have difficulty breathing with light exertion, or experience night sweats and unintentional weight loss along with difficulty breathing, it is important to see a doctor.

Seek emergency care if you experience severe shortness of breath, sudden chest pain or if you or someone close to you has difficulty breathing. These symptoms can be signs of serious conditions that require prompt care.

People diagnosed with chronic lung diseases, such as asthma and COPD, should go for regular check-ups to ensure that the treatment is effective and to adjust it if necessary.