Emphysema

Emphysema is a lung-related chronic respiratory illness. It is characterised by the breakdown of the lungs' alveoli (air sacs), which reduces the surface area available for gas exchange and increases air entrapment. As a result, breathing becomes steadily more difficult, and physical activity capacity declines.

We'll talk about emphysema's definition, causes, types, stages, symptoms, diagnostic standards, investigation, and treatment in this blog.

Definition:

Emphysema is a chronic respiratory disease characterized by the progressive destruction of the walls of the alveoli in the lungs, leading to a decrease in lung function and an increase in air trapping.

Causes:

Emphysema is primarily brought on by repeated exposure to irritants, mainly cigarette smoke. Air pollution exposure, passive smoking, and work-related chemical and dust exposure are other risk factors.

Types:

Emphysema comes in two forms:

The respiratory bronchioles, or tiny airways in the lungs, are impacted by centriacinar emphysema. The most frequent association with it is smoking cigarettes.

Emphysema of the panacinar kind affects the alveoli throughout the lungs uniformly. It frequently occurs in conjunction with the hereditary disorder known as alpha-1 antitrypsin deficiency.

Stages:

Depending on how severe the disease is, emphysema has four stages. These are the stages:

Mild - The patient may have light breathlessness and infrequent coughing at this stage.

Moderate - During this stage, the patient has more frequent coughing and shortness of breath, and they may find it challenging to carry out daily tasks.

Severe - At this stage, the patient has severe exhaustion and shortness of breath, and supplemental oxygen may be needed.

Very severe - The patient is at a high risk of respiratory failure at this stage and suffers from severe shortness of breath.

Signs & Symptoms:

The signs and symptoms of emphysema include:

Shortness of breath, particularly during physical activity

Wheezing

Chronic cough

Chest tightness

Fatigue

Unintentional weight loss

Bluish lips or fingernail beds (cyanosis)

Diagnostic Criteria:

Emphysema is diagnosed using a combination of pulmonary function testing, physical exam, and clinical history. For confirmation of the diagnosis and to rule out other lung disorders, a chest X-ray or CT scan may be carried out.

Investigation:

In addition to the diagnostic criteria mentioned above, other investigations may be necessary to determine the severity of emphysema and the underlying cause. These investigations may include:

Arterial blood gas test

Alpha-1 antitrypsin deficiency test

Pulmonary function tests

CT scan or MRI of the chest

Electrocardiogram (ECG)

Treatment:

Emphysema does not yet have a cure, however there are therapies that can help manage the symptoms and decrease the disease's progression. These remedies could consist of:

Putting an end to smoking and staying away from irritants

Bronchodilators, corticosteroids, and antibiotics are examples of medications.

Oxygen treatment

Rehabilitation of the lungs

In severe circumstances, surgery

Prevention of emphysema:

Emphysema prevention generally focuses on preventing exposure to cigarette smoke, which is the disease's main cause. The following actions can be taken to prevent emphysema:

1.    Give up smoking: The most vital preventive action is giving up smoking. The single most effective approach to avoid developing emphysema and other lung problems is to stop smoking if you are a smoker.

2.    Prevent being around secondhand smoke: As dangerous as smoking itself can be, secondhand smoke can also be. By staying away from smokers or requesting that they not smoke near you, you can reduce your exposure to secondhand smoke.

3.    Avoid air pollution: Air pollution can irritate the lungs and raise the risk of emphysema both indoors and outside. As much as you can, try to prevent or reduce exposure to air pollution.

4.    Use protective equipment: To lower your risk of getting emphysema, use protective equipment, such as a mask or respirator, if your job exposes you to chemicals or dust.

5.    Regularly examine your health Emphysema and other lung disorders can be identified early through routine check-ups with your doctor, allowing for early intervention and treatment.

A healthy lifestyle that includes regular exercise, a well-balanced diet, and enough sleep can also assist to enhance lung function and lower the chance of developing emphysema.

In conclusion, emphysema is a chronic respiratory condition that has a negative effect on a person's quality of life. The disease's progression can be slowed down and results can be improved with early detection and treatment. It's critical to get medical care right away if you believe you or a loved one may have emphysema.

 

Dr.Muhammad Arsalan Khan
MBBS, DHHM, MSc (D & E)
CCD-BMJ-AKU-RCP (London)

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