What is this 'pleura' that surrounds the lungs? Shall we know exactly?

We all breathe constantly, right? But do we ever think about how delicately and safely our lungs work inside our chest? Every time we breathe, our lungs inflate and deflate like a balloon. When this happens, these lungs have a special protective covering that helps them move very smoothly and easily without rubbing against the inner walls of the chest. That's what we call 'pleura' in medicine. Today, let's talk about what this pleura is, what it does, and what health problems it can cause.

Simply put, what is pleura?

Imagine you're folding a polythene bag in half. Now, what's happening here is like putting another ball inside it. The pleura is also a very thin, fluid-like membrane . It has two layers.

1. Inner layer (Visceral Pleura): This is the part that directly surrounds our lungs, the blood vessels that go to them, and the nerves. It's like a glove clinging to your hand. Most importantly, this layer doesn't have any pain-sensing nerves .

2. Outer layer (Parietal Pleura): This is the part that is attached to the inner wall of the chest, that is, the ribs and their associated muscles. But it has a lot of pain-sensing nerves . That's why when there is a problem with the pleura, we feel severe chest pain, because this outer layer is inflamed.

There is a small empty space between these two layers. We call it the pleural space . Inside this space is a very thin layer of fluid (pleural fluid) that acts like a lubricant. It is because of this fluid that when we breathe and inflate the lungs, these two layers slide very smoothly without hitting each other. This is like putting a little water between two glasses and they slide easily.

What are the common conditions that affect the pleura?

Unfortunately, this delicate membrane can be affected by a variety of conditions, which can cause breathing difficulties and severe pain. Let's look at some of the most common conditions.

What are the symptoms of pleural damage?

Imagine you were hit in the chest by a fast-moving ball while playing cricket, or you fell off a bike. This can damage the pleura. There are several main symptoms that you will experience:

• Sharp chest pain:This is the main symptom. This pain is especially severe when taking a deep breath, coughing, or sneezing . Many people describe it as feeling like someone is stabbing them in the chest with a knife.
• Dyspnea: Difficulty breathing, a feeling of suffocation, occurs when the lungs are unable to inflate properly.
• Breathing fast and short: Since you can't take a deep breath due to the pain, your breathing rate increases and you tend to take short breaths.
• Cough: Some people may also develop a dry cough.

When should you see a doctor immediately?

If you have any of the symptoms below, you should go to the nearest hospital's Emergency Department (ETU) without delay .

• A sudden, unbearable sharp chest pain.
• It's very difficult to breathe.
• Blue lips or skin (this means the body is not getting enough oxygen).
• Excessive sweating and fainting.

How do doctors diagnose these conditions?

When you go to the doctor, he will ask you about your symptoms and listen to your chest with a stethoscope. If there is a problem with the pleura, you may sometimes hear a pleural rub. In addition, he may do several tests to confirm the exact condition.

• Chest X-ray: This can check for fluid or air accumulation in the pleural space, or for lung collapse.
• CT Scan and Ultrasound Scan: These provide clearer, more detailed images than X-rays. They help pinpoint the exact location of the problem.
• Thoracentesis: This involves using a very fine needle to remove a small sample of fluid from the pleural space and sending it to a laboratory for testing. This can help detect things like infection and the presence of cancer cells.
• Thoracoscopy: This involves passing a small camera-equipped tube into the chest to view the pleura and lungs from the inside. This procedure is also used to take a tissue sample (biopsy) if necessary.

What are the treatments for this?

Treatment depends on your condition and its severity.

• Types of medicines:If there is an infection, antibiotics or other medications will be given to treat it. Painkillers will be given to control the pain.
• Administering oxygen: If there is difficulty breathing, oxygen is administered.
• Removing fluid or air: If a lot of fluid or air has accumulated in the pleural space, a needle or small tube (chest tube) is inserted to remove it.
• Surgery: In some cases, surgery may be necessary, especially if the air fills repeatedly or there are other complications.
• Cancer treatment: If the condition is cancerous, specific treatments such as radiation therapy and chemotherapy are recommended.

What can we do to keep our pleura healthy?

Although we cannot protect ourselves from every disease, there are many things we can do to reduce our risk.

• Avoid smoking completely: Smoking is a major enemy of the lungs as well as the pleura. Smoking is a major risk factor for conditions like pneumothorax.
• Protect yourself from accidents: Wear a seat belt whenever you are in a vehicle. Use the necessary protective clothing and equipment when playing sports (especially rugby and football).
• Avoid infections: Wash your hands thoroughly with soap and water regularly. This can help protect you from many respiratory infections.
• Stay away from asbestos: It can be found in old buildings being demolished and in some factories. Avoid exposure to such things.

Your pleura is like the silent hero of the respiratory system. We only realize its value when there is a problem with it. That's why it's so important to take care of it too.