Tuberculosis or TB as it is commonly known in medical circles is a bacterial infection commonly affecting the lungs. While there are some countries in the world, where TB is more common, anybody can develop TB if they are not very healthy. The TB bacteria spreads through the air. While some people's immune system would be able to fight the disease back; some people who have risk factors, the disease may continue to develop and present with symptoms. 

So, a person can develop TB in two circumstances:

Exposure to TB
Visited a country where TB is very common
Spent time with a person who is infected with TB
Exposure to crowded places like a market or a healthcare facility where TB virus is present
Weakened immune system
Be HIV infected
Weak immune system due to long-term use of steroids
Chronic diseases like diabetes, malnutrition, end-stage kidney or liver disease, cancer, etc.
Extremes of age (children whose immune system is not fully developed, elderly whose immunity is weakened)
Chronic smoker, IV drug abuse, and/or alcohol user
Repeatedly exposed to TB bacteria in the last two years
Had TB bacteria, but not identified or treated
Drug therapy like chemotherapy, long-term use of steroids, auto-immune disease treatments, etc.
Signs and symptoms of TB: 

If you are at risk, it is also suggested that you know the early warning signs and symptoms of TB. TB most commonly affects the lungs and is known as pulmonary tuberculosis. Watching out for these helps in early diagnosis which can both help arrest the condition in the early stages and improve prognosis.

A persistent cough which lasts for more than 3 weeks
Pain in the chest worsened with coughing
Presence of blood in the sputum
Generalized and extreme weakness or fatigue
Unexplained weight loss
Loss of appetite
Fever and chills
Profuse sweating at night
If a person has TB bacteria in the system but does not feel sick and does not have the above systems, then it means that the person is not actively infected. This person also cannot spread the disease to another person. However, when immunity is weak, this can develop into an infection. In a country like India where tuberculosis is quite prevalent, it is best to get yourself screened for active tuberculosis infection if you display any such symptoms.

Tuberculosis (TB) - When A Person Can Develop It?

How to diagnose asthma in children

Asthma in children under the age of 5 is a matter of concern. It is not a rare disease and early diagnosis is important. Common signs of asthma in children are:

1. Recurring bronchitis
2. Wheezing
3. Discomfort in the chest
4. Coughing
5. Trouble breathing

While some children have persistent yet mild symptoms, some children have severe attacks at times. Seasonal allergies and smoke make the symptoms worse.

What to notice?
While feeding an infant, if you notice that your child is facing shortness of breath, it might be a symptom of asthma. In a toddler, if your notice a decreased desire to run and play, or easy fatigue, then this could be a symptom of asthma. Asthma attacks for many children under the age of 5 are worsened when they catch cold or have any other respiratory infections. All these, if noticed should not be ignored and your child's pediatrician should be consulted.

The above mentioned symptoms were mild. Some children have it worse and the attacks can be life-threatening, needing immediate treatment. If your child is under the age of 5 and you see them doing one of the following, contact emergency services immediately:

1. Trouble in speaking because they have restricted breathing
2. When they are breathing in, the effort is so much that the abdomen is getting sucked in
3. Gasping for air.

Diagnosing asthma in a child can be tricky as symptoms like coughing, wheezing, etc can be for other conditions also. Once a child is a little older and if the symptoms persist, breathing and lung function tests are taken to gauge the situation. 

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How To Diagnose Asthma In Children, Before It Attacks?

What is Allergic Asthma?

Allergic asthma is the condition in which the symptoms of an asthmatic attack appear after exposure to certain allergens. 90% of the cases of asthma in children are allergy driven, while in adults, the percentage is said to be around 50%.

An allergy happens when an individual's immune system exhibits massive reaction or fights vigorously against substances like pollen, dust, animal dander or certain other minute particles which are actually not harmful to the body but are considered so by the immune system.

Symptomatic changes in cases of allergic asthma:

If the symptoms of an asthma attack occur only when you are subjected to these triggers or irritant particles, your case is allergy driven.

In such cases, the airway reacts aggressively to the entry of such allergens.

The airway muscles tighten up and inflammation is observed.

Breathing becomes painful and compromised, and mucus accumulation sets in very quickly.

Coughing is a common phenomenon, as the body tries to expel the mucus accumulated.

The allergens mentioned above are not the only triggering agents. Basically, anything that causes irritation could trigger an allergy and an asthmatic attack thereafter. Symptoms in the case of allergy driven asthma are more or less the same as seen in other asthmatic cases.

Confirming the cause of asthma as allergic or not:

The doctor would give you a much better clarification on whether you're asthma is allergy driven or not. There are pretty much two ways to decipher the same:

One is to administer a tiny amount of allergen to the skin and making a note of the reaction to that. Whether the reaction is a normal one or an aggressive one would tell if an individual has an allergy or not.

Specific IgE test may be done to confirm the cause, or to test the presence of an allergic reaction in the individual.

All your queries pertaining to allergic asthma and asthma, in general, are more than welcome.

What is Allergic Asthma?

Radiotherapy is a kind of treatment that kills the cancer cells by using high energy beams. Specialists use radiotherapy to treat a wide range of lung cancer. For early stage lung cancer, the radiotherapy may get rid of the cancer totally. For the small cell lung cancer you may have radiotherapy only. Then again you may have it with another treatment, for example, chemotherapy or surgery.

For small cell lung cancer, radiotherapy is used with or after chemotherapy. Chemotherapy makes the tumor in the lung shrink. You may have radiotherapy to your cerebrum, which tackles any cancer cells that may have spread to the brain. This is called prophylactic cranial illumination (PCI). In case of advanced lung cancer, the treatment contracts the tumor and controls it for a while. It additionally decreases symptoms like shortness of breath.

The types of radiotherapy used for the lungs include:

Outer radiotherapy: This kind of radiotherapy comes from a machine and is administered to the body through an external source. It depends on the kind of cancer and the progression of the same. You may have three radiotherapy sittings every day for around 12 days. This sort of radiotherapy is known as CHART ceaseless hyperfractionated quickened radiotherapy. A few people with small cell lung cancer may have treatment twice a day. If you are getting radiotherapy to control the side effects of lung cancer, you may have a single treatment or day by day medications for up to 3 weeks.



Inner radiotherapy: This is called brachytherapy or endobronchial treatment. This will be administered during a bronchoscopy. The radiation is given through a thin tube that the specialist puts inside your aviation route for a few of minutes. Specialists use this sort of treatment to shrink a tumor that is blocking or pushing your breathing track and making breathing troublesome for you.

These are some of the procedures that take place while you are having lung cancer radiotherapy:

Radiotherapy machines are enormous. The machines are fixed in one position or are sometimes ready to go around your body to give treatment from various angles.
Prior to your first treatment, your radiographers will clarify what you will hear and see. The treatment room normally have docks for you to connect to music players. So you can listen to your own choice of music.
You cannot feel radiotherapy when you really have the treatment. It takes anything from one second to a few minutes. It is essential to lie similarly situated every time, so the radiographers may take a short time to get you prepared.
Once you are in the right position, the staff will allow you to sit in the space for a couple of minutes. They watch you constantly on a closed circuit TV screen. They may request that you hold your breath or take shallow breaths during the treatment.
In case you have a concern or query you can always consult an expert & get answers to your questions!

Radiotherapy For Lung Cancer!

Lung cancer is caused by disorderly growth of uncommon cells which line the air passage, usually starting off in a single or both lungs. The irregular cells do not mature into healthy lung tissue but instead divide speedily and result in tumor formation.

Causes behind lung cancer:

Smoking: This is considered as the most significant source of lung cancer. As reported by multiple researches and studies, cigarettes contain over 4,000 chemicals, most of which are cancer causing agents. Active smoking is one of the major causes of lung cancer but what may come to you as a surprise is that extended periods of passive smoking is also a major factor.
Pollution and Exposure: There is high risk of lung cancer development when there is occupational exposure to pollution by chemicals released from industrial factories. Chemical exposure of this kind refers to prolonged exposure over quite few months or years. Some examples of these chemicals are asbestos, diesel exhaust among many others.
Radioactive Gas: Radioactive gases naturally occur in small masses present in all soils and rocks. However, if you breathe in radioactive gases your lungs will damage and may cause the development of abnormal tissue which can cause lung cancer.
Family history: A family history of cancer, especially lung cancer will also put you at high risk of developing lung cancer.
Treatment methods of lung cancer:

Chemotherapy: Chemotherapy is a method in which drugs are injected through veins in your arm (intravenously) or orally or in a combination of both. These drugs kill cancer cells and help to stop it from spreading any further as well.
Clinical Trials: These trials are experimental lung cancer treatment studies. You may have to try out this clinical therapy if other treatment methods aren t working and only if you are accepted into it.
Surgery: A surgeon will help remove affected areas of the lung including cancerous tumors via surgery. The surgeon may need to remove parts of the lung along with the cancerous growth. In certain cases, one side of the lung may also be completely removed to stop the spread of the malignant tissue.
Radiation Therapy: This is a therapy where high energy electromagnetic waves are passed through your body to destroy cancer cells with the help of high-powered energy beams.
Can you prevent lung cancer?

Nutrition -- A  healthy diet with lots of fruits and vegetables may also help reduce your risk of lung cancer. Some evidence suggests that a diet high in fruits and vegetables may help protect against lung cancer in both smokers and non-smokers. But any positive effect of fruits and vegetables on lung cancer risk would be much less than the increased risk from smoking.
Exercise -- Even moderate amounts of exercise can aid in lung cancer prevention. Studies suggest that even something as simple as gardening twice a week is associated with a lower risk of developing lung cancer.
Smoking Habits -- If you stop smoking before a cancer develops, your damaged lung tissue gradually starts to repair itself. No matter what your age or how long you ve smoked, quitting may lower your risk of lung cancer and help you live longer. 
Avoidance of Air Pollution -- Long-term exposure to ambient air pollution and, in particular, particulate matter with absorbed polycyclic aromatic hydrocarbons and other genotoxic chemicals has been suspected to increase the risk for lung cancer. So, avoid air pollution as much as possible.

Lung Cancer - Ways You Can Prevent It!

Chronic obstructive pulmonary disease is a long-term condition of the lungs where the flow of air to the lungs is restricted (obstructed). Symptoms include cough and breathlessness. The condition is most often caused by smoking and the most important treatment is to stop smoking. Inhalers are commonly used to ease symptoms. Other treatments such as steroids, antibiotics, oxygen, and mucus-thinning (mucolytic) medicines are sometimes prescribed in more severe cases, or during a flare-up (exacerbation) of symptoms.

What causes COPD?
Smoking is by far the biggest risk factor for COPD. The lining of the airways becomes inflamed and damaged by smoking. Cigarette smoking is the biggest risk factor.

Air pollution may cause some cases of COPD, or make the disease worse. Air pollution can be indoor air pollution or outdoor air pollution. Indoor air pollution seems to be involved in more cases of COPD than outdoor air pollution. Indoor air pollution includes fumes from indoor fires or stoves, and dust, fumes or chemicals present in some workplaces. The combined effect of exposure at work to air pollutants and smoking increases the chances of developing COPD.

A small number of people have a hereditary (genetic) risk of COPD due to very rare protein deficiencies that can lead to lung, liver and blood disorders. (The condition is called alpha 1 antitrypsin deficiency. Less than 1 in 100 cases of COPD are due to this.


COPD symptoms-


Cough is usually the first symptom to develop. It is produced with phlegm (sputum). It tends to come and go at first, and then gradually becomes more persistent (chronic). You may think of your cough as a 'smokers cough' in the early stages of the disease. It is when the breathlessness begins that people often become concerned.
Breathlessness (shortness of breath) and wheeze may occur only when you exert yourself at first. For example, when you climb the stairs. These symptoms tend to become gradually worse over the years if you continue to smoke. Difficulty with breathing may eventually become quite distressing.

Sputum - the damaged airways make a lot more mucus than normal. This forms sputum. You tend to cough up a lot of sputum each day.

Chest infections are more common if you have COPD. A sudden worsening of symptoms (such as when you have an infection) is called an exacerbation. Wheezing with cough and breathlessness may become worse than usual if you have a chest infection and you may cough more sputum. Sputum usually turns yellow or green during a chest infection. Chest infections can be caused by germs called bacteria or viruses. 
Other symptoms of COPD can be vaguer. Examples are weight loss, tiredness and ankle swelling.

What is the difference between COPD and asthma?


COPD and asthma cause similar symptoms - in particular difficulty breathing (breathlessness). However, they are completely different diseases. Briefly:

In COPD there is permanent damage to the airways. The narrowed airways are fixed, and so symptoms are persistent (chronic). Treatment to open up the airways is therefore limited.

In asthma, there is inflammation in the airways which makes the muscles in the airways narrow (constrict). This is temporary so the narrowing comes and goes. So, the symptoms tend to come and go, and vary in severity from time to time. Treatment to reduce inflammation and to open up the airways usually works well.

COPD is more likely than asthma to cause an ongoing cough with phlegm (sputum).

Waking at night with breathlessness or wheeze is common in asthma and uncommon in COPD.

COPD is rare before the age of 35, whilst asthma is common in under-35s.

There is more likely to be a history of asthma, allergies, eczema and hay fever (so-called atopy) in people with asthma.

Do I need any tests?

The most common test used in helping to diagnose the condition is called spirometry. This is a breathing test. You will be asked to breathe or blow into a small machine called a spirometer which will measure how well your lungs are working. This test can help make a diagnosis of COPD.


A chest X-Ray show signs of COPD and can be used to help exclude other serious conditions (including lung cancer). Occasionally, a special CT scan of the chest - high-resolution CT - is needed. A blood test to make sure you are not anemic is often helpful.

A pulse oximeter is a device which can be clipped on to your finger. It measures your heart rate (pulse) and the amount of oxygen in your circulation (oxygen saturation). Lower levels than normal tend to be found in people who have COPD, especially if you have a flare-up (exacerbation) of your symptoms.

COPD treatment-

Smoking cessation is the most important step towards treatment.
Inhalers

The main treatments are medications given in devices called inhalers. The medicine within the inhaler is in a powdered form which you breathe in (inhale). The medicines in standard inhalers reach the lungs better if used with a spacer device. Inhalers include one, two or even three types of medicines. They may include:


A bronchodilator agent - this is a medicine which opens up (dilates) the airways. Some work quickly but don't last very long; others are longer-acting.
A steroid - these reduce the inflammation in the airway, thereby reducing the swelling. This, in turn, adds to the space available for air to pass.
A medicine which helps to dry up the secretions produced by the airways.
Home oxygen
This may help some people with severe symptoms or end-stage COPD. It does not help in all cases. Unfortunately, just because you feel breathless with COPD it does not mean that oxygen will help you. Great care has to be taken with oxygen therapy. Too much oxygen can actually be harmful if you have COPD.
Regular follow up in OPD is an essential part of treatment success.

Chronic Obstructive Pulmonary Disease - Know More About It!

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