Understanding the causes and effects of Asthma

Asthma is a common long-term inflammatory disease of the airways of the lungs that is usually managed by avoiding known triggers. Here’s a closer look at this disorder and how it can be managed
Understanding the causes and effects of Asthma
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Asthma is quite a common disease and it would not be surprising if you or a loved one has just been diagnosed with it or maybe you have been dealing with it for years. In either of these cases, you probably have lots of questions, not only about what asthma is but also as to why it keeps reoccurring in spite of all the care you take.

Asthma is basically a long-term respiratory condition that affects your airways – the tubes that carry air in and out of your lungs. You could say that someone with asthma has sensitive airways that are ready to react when they come into contact with something they don’t like (asthma triggers).

An asthma attack is a hypersensitive response to a trigger. It is similar in a way to an allergic reaction, where the body’s immune system responds to an invader.

When the cells of the immune system sense an invader (tobacco smoke, molds, dust, certain foods, pollen etc), they set off a series of reactions that help fight of the invader.

Researchers are still not sure exactly what causes this hypersensitive reaction, but they do know that it can be caused by both genetics and the environment factors. Hence children born to parents who have asthma have a higher risk of suffering from asthma.

Besides this inherited tendency it is also thought that the modern obsession with a very clean environment in early life, where parents avoid children to be exposed to dirt, dust, pets, certain foods, etc causes further harm to children. Just like any other muscle in our body, the immune system needs to be exposed to different substances in order to fully develop so that it recognises which substances are harmless  and which are not.

Similarly, overuse of medications to treat trivial ailments like runny nose, coughs, skin rash also never allows the immune system to develop to its full potential.

When a person with asthma comes into contact with asthma triggers that irritate their sensitive airways, it causes their body to react in three ways:

1.Inflammation (swelling) of the lining of the airways. When the airway lining swells because of inflammation, there is less room for air to flow in and out. This swelling can last for weeks after an acute episode, called an asthma attack, or may become a condition that never completely goes away.

2.Bronchospasm is caused by tightening of the muscles that surround the airways. This narrows the airway, preventing air from getting in or out of the lungs.

3.Excessive mucus is produced in the lungs and often blocks the airways.

These reactions cause the airways to become narrow and irritated, making it difficult to breath and leading to asthma symptoms such as chest tightness, frequent cough, wheezing, difficulty breathing with exercise, coughing during the night, shortness of breath, frequent respiratory illnesses or pneumonia, inward movement of the muscles in the neck, chest or ribs or flaring of the nostrils, difficulty breathing while walking or talking and a change in skin, fingernail or lip colour to grey or blue.

Treating the cause

Symptoms vary from child to child and from episode to episode. The key to successful treatment depends on what is being treated – the cause  or effect. Standard treatment usually consists of treating the effect i.e. medication aimed at relaxing and widening the airways (bronchodilators) and medications to clear the airway of mucus so that more oxygen can get in, allowing breathing to get easier. The child feels better for a while, but the very next exposure to the trigger causes a recurrence of the effect and so another puff of bronchodilators and the process continues.  

Most prescribed medications only treat the symptom; they don’t help tone down your hyper reacting immune system. This can be done through Immuno Modulation, which is aimed at toning done the hyper sensitive immune reaction. It can be achieved through holistic sciences aimed at targeting the hypersensitive immune system rather than only treating the effect- narrowed air ways.

Such treatments should reverse the journey of the disease i.e. from the lower respiratory tract  back to the skin. Coughs should improve, followed by runny nose and sneezing and finally a rash should appear for a short time back on the skin. Parents beware not to suppress the rash this time round, for if you do so, the asthma will comeback.

The outcome of every treatment always depends on what we treat the cause or effect? When you meet with your healthcare provider, you need to learn whether the drugs they have prescribed are going to make your body stronger and healthier and whether they address the cause or symptoms.

Are cholesterol lowering drugs and blood pressure medications helping your heart, or are they just lowering the markers we measure that tell us our cardiovascular system is in jeopardy? Are the acid blockers and antacids fixing your digestive system, or are they just reducing the pain in your tummy? Are pain medications for arthritis, joint pain, or fibromyalgia fixing the problem, or are they only disrupting the pain signals your body is sending? Are hormone replacement drugs balancing out the imbalance by adding hormones, or addressing what’s causing the imbalance so you don’t need to take the hormones?

The challenge is that most parents want a new result but continue to act in the same way. We continue doing the same thing over and over again and expect a different result. It’s time to treat the cause not the effect.

The writers are consultants at VitaNova Clinics, Goa

Herald Goa
www.heraldgoa.in