Eosinophilic asthma is a specific form of bronchial asthma characterized by increased levels of eosinophils in the airways, which in turn causes inflammation and airway obstruction. This disease is often associated with an allergic reaction and can manifest itself both in periods of exacerbation and in the form of chronic symptoms, which significantly worsens the patient's quality of life. Eosinophils are a type of white blood cell that play an important role in the immune response and the inflammatory process. An increase in their number can lead to tissue damage and impaired lung function, which makes this form of asthma a subject of serious clinical attention.
History of the disease and interesting historical facts
Eosinophilic asthma was first described in medical literature in the mid-20th century. However, historically, asthma was already mentioned in ancient texts, where it was associated with various allergic reactions. In the 1960s, scientists began to study the role of eosinophils in asthma, which led to an understanding of the mechanism of their pathophysiological role. An important step was the clinical trials conducted in the 1980s, which confirmed the effectiveness of pharmacotherapy for eosinophilic asthma, including steroids and bronchodilators.
Epidemiology (statistics of disease occurrence)
Eosinophilic asthma affects a significant number of people worldwide, given that asthma is one of the most common chronic diseases. According to the World Health Organization (WHO), rapid estimates indicate that among patients with asthma, 30-70% may have elevated eosinophil levels. Importantly, the prevalence of eosinophilic asthma varies by region and population, highlighting the need for further epidemiological studies.
Genetic predisposition to this disease
Scientific research confirms that there is a genetic predisposition to eosinophilic asthma. Certain genes, such as IL-4, IL-5, and IL-13, are involved in regulating the eosinophilic response and its production. Mutations in these genes can lead to increased sensitivity to allergens and a more pronounced inflammatory response in the airways. Modern genetic research continues to identify other candidates for the role of important markers linking heredity and the risk of developing the disease.
Risk factors for the development of this disease
There are many risk factors that contribute to the development of eosinophilic asthma, which can be divided into physical and chemical. The main factors include:
- Allergens (pollen, mold, house dust)
- Smoking and passive smoking
- Air Pollution
- Respiratory tract infections
- Chemical compounds (volatile organic compounds, formaldehyde)
An important factor is also concomitant diseases such as allergic rhinitis, eczema and sinusitis, which can increase the risk of developing eosinophilic asthma.
Diagnosis of this disease
Diagnosis of eosinophilic asthma involves a range of different methods. The main symptoms of the disease may include:
- Rapid breathing
- Dry cough
- Shortness of breath, especially with physical exertion
- Creaking breathing sounds
Laboratory tests most often focus on measuring eosinophils in the blood and sputum. Radiological examinations, such as chest X-rays and CT scans, may show changes in lung tissue. Other diagnostic methods may include spirometry to assess lung function and allergy challenge tests. It is also important to conduct a differential diagnosis to rule out other possible diseases with similar symptoms, such as chronic obstructive bronchitis or infectious lung lesions.
Treatment
Treatment for eosinophilic asthma involves using a variety of approaches to manage symptoms and control inflammation. Common treatment strategies may include:
- Pharmacological treatment (inhaled corticosteroids, bronchodilators)
- Group and individual patient education programs
- Lifestyle changes and avoiding triggers
Pharmacological treatment is aimed at controlling the inflammatory process. An important step is the use of biological therapy aimed at blocking specific molecules such as IL-5, which helps reduce eosinophil levels. Surgical treatment is usually not required, but in some cases surgery may be indicated to eliminate other airway pathologies or obstructions.
List of medications used to treat this disease
Drugs commonly used to treat eosinophilic asthma include:
- Beclomethasone (inhaled corticosteroid)
- Budaesonide
- Montelukast (leukotriene modulators)
- Mepolizumab (biotherapy)
- Reslizumab (biotherapy)
These drugs help control inflammation and prevent attacks, which is especially important for patients with severe forms of the disease.
Disease monitoring
Monitoring of eosinophilic asthma involves regular observation of the patient's condition and response to therapy. The main stages of monitoring should be the assessment of the frequency and severity of exacerbations. The prognosis with adequate treatment is usually favorable, but complications such as chronic obstructive pulmonary changes are possible, requiring additional medical attention.
Age-related features of the disease
Eosinophilic asthma can manifest itself at any age, but its clinical aspects may differ. In children, the disease is often of an allergic nature and may be accompanied by atopic conditions, while in adults, a more pronounced degree of obstructive changes is observed. In older people, eosinophilic asthma may be combined with other chronic lung diseases, which complicates diagnosis and treatment selection.
Questions and Answers
- What is eosinophilic asthma? It is a chronic inflammatory lung disease whose main feature is an increased number of eosinophils in the airways, leading to asthma symptoms.
- What are the main symptoms of the disease? The main symptoms include shortness of breath, cough, stridor and wheezing.
- How to diagnose eosinophilic asthma? Diagnosis includes a medical examination, laboratory tests for eosinophil levels, spirometry, and radiological examinations.
- What treatment is used? Treatment may include inhaled corticosteroids, bronchodilators, and biologics aimed at controlling eosinophilic inflammation.
- What is the prognosis for patients with eosinophilic asthma? With adequate treatment and adherence to doctor's recommendations, the prognosis is usually positive, but exacerbations and complications are possible.
Advice from Dr. Oleg Korzhikov
Dr. Oleg Korzhikov recommends paying attention to the following aspects when managing eosinophilic asthma:
- Visit your doctor regularly to monitor your condition and adjust your therapy if necessary.
- Avoiding known allergens and triggers can help reduce the frequency of flare-ups.
- Maintain a physical activity regimen, but take into account how you feel and the condition of your lungs.
- Use inhalers correctly and as directed.
- Monitor your stress levels as they can worsen symptoms of the disease.
These simple recommendations can have a significant impact on disease control and improving the patient's quality of life.
