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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The hallmark symptom of bronchitis is a persistent cough. In the initial stages of acute bronchitis, the cough may be dry and hacking. As the inflammation progresses and the goblet cells increase secretion, the cough typically becomes productive, meaning it brings up mucus or sputum. This cough is the body’s physiological attempt to clear the airways of excess secretions and cellular debris. The cough can persist for several weeks, long after the active viral infection has resolved, due to the lingering hypersensitivity of the bronchial receptors. This phenomenon, known as post-viral bronchial hyperreactivity, can be distressing for patients who fear the infection persists. At Liv Hospital, we carefully evaluate the nature of the cough, as its characteristics can provide vital clues about the underlying pathology and the stage of healing.
The nature of the sputum produced can vary significantly and changes over the course of the illness.
Shortness of breath, or dyspnea, is a common symptom, particularly during physical exertion. The narrowing of the airways increases the work of breathing.
Although bronchitis is localized to the lungs, the immune response creates systemic symptoms.
Smoking is the single most significant risk factor for the development of chronic bronchitis and a major aggravator of acute bronchitis.
Specific work environments increase individuals’ risk of developing bronchitis, a condition often referred to as industrial bronchitis.
The risk of bronchitis varies with age and immune system health.
Gastroesophageal reflux disease is an often-overlooked risk factor for chronic bronchitis symptoms. Acid from the stomach can travel up the esophagus and be micro-aspirated into the lungs, especially during sleep. This acid directly damages the bronchial lining and triggers nerve reflexes that cause coughing and bronchospasm. Patients with chronic cough who do not smoke should always be evaluated for reflux as a potential contributing factor.
The incidence of acute bronchitis peaks during the winter months. Cold, dry air can dehydrate the bronchial mucosa, making it more susceptible to viral invasion. Additionally, people tend to congregate indoors during colder months, facilitating the transmission of respiratory viruses. Sudden changes in temperature or humidity can also act as non-infectious triggers for bronchial spasms in susceptible individuals.
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Wheezing indicates that the airways have narrowed due to inflammation or spasm, causing the air to whistle as it passes through.
Yes, severe allergies can trigger airway inflammation, leading to allergic bronchitis that mimics the symptoms of infectious bronchitis.
Lying flat causes mucus to pool in the back of the throat and chest, and the body’s natural steroid levels drop at night, which can increase inflammation and coughing.
Mild chest pain or soreness from the muscular effort of coughing is common, but sharp or severe pain should be evaluated to rule out pneumonia or other heart conditions.
The contagious period depends on the virus but typically lasts as long as the person has active symptoms, such as fever and a new cough, usually the first few days to a week.
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