It is no longer so surprising to read about alarming air pollution levels in our cities. On more than one occasion, these levels have risen above the danger levels. For some people, this may simply create an annoying fog that makes it difficult to see. For others, it can cause serious health issues. Air pollution is one of the most common reasons for the growing instances of asthma and allergies. Children are most susceptible to such diseases caused by air pollution.

Asthma and Allergies
Asthma can affect children even before their fifth birthday and the condition is characterized by breathlessness caused by a constriction of the airways. While the root cause of asthma is unknown, it is usually seen that asthmatic patients are more sensitive to others to particles in the air such as pollutants, dander, dust, smoke etc. Thus, the airways construct as a reaction to these allergens. Changes in the weather, a sudden cold draft or the flu can also aggravate asthma.

Can you Protect Your Children from Asthma?
Wheezing, panting, finding it difficult to breathe and a persistent cough are some of the signs of asthma. If you notice these symptoms, you must consult a doctor immediately. At home, here are a few things you could do.

Avoid exposing your children to smoke: Do not smoke around your children or allow others to smoke around them. If you cannot give up the habit, wear a smoking jacket when you smoke and take this off before you play with your children. When you ll go out, drive with the windows up so that your child does not inhale exhaust smoke. Set your air conditioner to circulate air within the car itself.
Dust often: Try and keep your home as dust free as possible. Use a wet cloth to clean so that the dust does not fly in the air. Wash all your bed linen once a week. Carpets and rugs should be vacuumed regularly or dusted outside. It may also be a good idea to invest in dust mite impermeable covers for your child s mattress and pillows.
Keep your Pets clean: If you share your home with pets, bathe them once a week and brush them daily. Do not let them climb on to the furniture or your beds. Also, avoid having their toys lie on your beds.
Wear a face mask: Try and time your child s outdoor activities when the pollution levels are low. Buy yourself and your child a face mask that will filter the air they breathe in. These should be worn whenever they play outdoors.
These simple steps could help your child be healthier and can prevent asthma and other such allergic reactions.

Increasing Asthma & Allergy In Children - What Should You Do?

Pulmonary Function Tests or PFTs are a set of tests that are used to determine, measure or observe the functioning of the lungs. The most common pulmonary function tests used are spirometry, gas diffusion, and lung plethysmography. 

Highlights of pulmonary function tests

A spirometry test is used to measure the amount of air inhaled and exhaled. It also measures the amount of time taken to complete a respiration cycle.
A lung plethysmography measures the amount of air in the lungs after the patient has taken a deep breath. It also measures the amount of air that remains in the lungs after the patient has exhaled as much air as possible.
What does a Pulmonary Function Test measure?
Pulmonary function tests would not only check how well the person is breathing but also how effectively the lungs are able to conduct oxygen to the rest of the body. In addition to air flow, these tests would measure the size and volume of the lung and lung diffusion.

These tests can also be used to measure

Total Lung Capacity   the amount of air present in the lungs after breathing in deeply
Forced Vital Capacity   the amount of air that can be exhaled after breathing in deeply
Minute Volume   the amount of air exhaled per minute
Vital Capacity   the total volume of air that can be breathed out after inhaling as much as possible
Tidal Volume   the amount of air inhaled or exhaled when breathing normally
Maximum voluntary ventilation   the amount of air that can be inhaled and exhaled in one minute
Functional Residual Capacity   the amount of air that remains in the lungs when breathing normally
Forced Expiratory Flow   the flow or volume of air during an exhalation
Peak Expiratory Flow Rate   the rate at which a person can exhale
When are Pulmonary Function Tests recommended?
A physician might recommend a patient undergo a PFT as part of a routine physical check-up. This test would be advised if the patient is experiencing any symptoms associated with lung problems or disorders such as asthma, respiratory infections, chronic obstructive pulmonary disease, COPD. A doctor would also use these tests to monitor and check whether a certain treatment prescribed for a lung disease or condition is working effectively.

Pulmonary function tests are safe as they are non-invasive but it is important to follow the instructions of the doctor or technician before, after and during the test. It is important to make your doctor aware of any surgeries, respiratory infections, chest pains or heart attacks that you might have experienced before the test. If you are taking any medications you might need to follow the advice of the doctor as to whether you can take them before the test.

Your doctor would also advice you on how to prepare for the test such as not eating a large meal, avoiding caffeine and wearing loose-fitting clothes. If you have any doubts, concerns or queries discuss them with your doctor.

Pulmonary Function Tests - Why Is It Required?

COPD or Chronic Obstructive Pulmonary Disease is a lung disease wherein, it gets difficult for a person to breathe due to thickening and inflammation of airways. World COPD day is being celebrated on 16th November, in order to, raise  wareness about COPD. It is a group of progressive lung diseases, the most common ones of which are emphysema and chronic bronchitis. Emphysema destroys your lungs  air sacs while bronchitis leads to the inflammation and narrowing of your bronchial tubes.

Symptoms of COPD

The early symptoms of COPD include occasional shortness of breath, especially after physical exercise, mild and recurrent cough and having the urge to clear your throat many times. You may start avoiding physical activities eventually. Other symptoms, which follow include wheezing, chest tightness, chronic cough with mucus, an urge to clear mucus from the lungs, frequent flu, colds and fatigue.

Factors behind it
Smoking accounts for being the major cause of COPD in developed countries. Commonly, people over the age of 40 with a history of smoking are affected with COPD. The more you smoke, more are your chances of getting the condition increase. Exposure to chemicals and harmful fumes may also cause COPD. Long-term exposure to polluted air and inhaling dust are other causes. The deficiency of a protein called alpha-1-antitrypsin is also said to cause COPD.

Diagnosis
COPD is diagnosed on the basis of several tests and examinations. They include spirometry, which is a noninvasive test for assessing lung function, imaging tests such as a chest X-ray or CT scan which provides an image of the lung for observation. An arterial blood gas test is also carried out for measuring blood oxygen levels.

Treatment
The treatment options for COPD include the following:

Medication: Bronchodilators are used for relaxing the muscles of your lungs  airways which simplify breathing. They are taken via inhalers. Glucocorticosteroids may be added to reduce inflammation.
Oxygen therapy: When your blood oxygen levels are low, oxygen is given via masks and nasal prongs which help you to breathe better.
Surgery: Surgery is carried out in the case of severe COPD or when other treatment methods fail. Bullectomy is a common surgical procedure used, in which the large air sacs or  bullae  are removed from the lungs. The lung volume reduction surgery is also carried out in which damaged lung tissues are removed. Lung transplant is required in extreme cases.
Lifestyle changes: You need to make some lifestyle changes to alleviate the symptoms of COPD which include the following:
Quit smoking in case you are a regular smoker.
Avoid any form of second-hand smoke and chemical fumes.
Consume all the essential nutrients required by your body.
Consult a doctor about your exercise patterns.
In case you experience any symptom of COPD, you should consult a doctor immediately for quick diagnosis and proper treatment.

World COPD Day Special - Facts You Should Know About COPD

Lung cancer is the uncontrolled growth of abnormal cells in one or both lungs. These abnormal cells do not carry out the functions of normal lung cells and do not develop into healthy lung tissue. As they grow, the abnormal cells can form tumors and interfere with the functioning of the lung, which provides oxygen to the body via the blood.

Lung cancer is the most common cause of death due to cancer in both men and women throughout the world. According to the U.S. National Cancer Institute, approximately one out of every 14 men and women in the U.S. is diagnosed with cancer of the lung at some point in their lifetime. Lung cancer is predominantly a disease of the elderly; almost 70% of people diagnosed with lung cancer are over 65 years of age, while less than 3% of lung cancers occur in people under 45 years of age.

What Causes Lung Cancer?

The development of lung cancer is strongly associated with cigarette smoking, approximately 90% of lung cancers are attributable to use of tobacco. Pipe and cigar smoking can also cause lung cancer, but the risk is not as high as with cigarette smoking. Tobacco smoke contains more than 4,000 chemical compounds, many of which are cancer causing (carcinogens). Passive smoking, i.e. the inhalation of tobacco smoke by non-smokers who live or work with smokers, is also an established risk factor for the development of lung cancer.

Genetic susceptibility (i.e. family history) may play a role in the development of lung cancer. Other causes of lung cancer include air pollution (from vehicles, industry, and power generation) and inhalation of asbestos fibres (usually in the workplace).

Lung Cancer Symptoms

Early symptoms and signs of lung cancer

There may be no symptoms at the onset of the disease. When present, common symptoms of lung cancer may include:

Coughing: This includes a persistent cough that doesn't go away or changes to a chronic smoker's cough, such as more coughing or pain.
Coughing up blood: Coughing up blood or rust-colored sputum (spit or phlegm) should always be discussed with your doctor.
Breathing Difficulties: Shortness of breath, wheezing or noisy breathing (called stridor) may all be signs of lung cancer.
Loss of Appetite: Many cancers cause changes in appetite, which may lead to unintended weight loss.
Fatigue: It is common to feel weak or excessively tired.
Recurring infections: Recurring infections, like bronchitis or pneumonia, may be one of the signs of lung cancer.
Signs of advanced stages of lung cancer

Advanced stages of lung cancer are often characterized by the spread of cancer to distant sites in the body. This may affect the bones, liver or brain. As other parts of the body are affected, new lung cancer symptoms may develop, including:

Bone pain
Swelling of the face, arms or neck
Headaches, dizziness or limbs that become weak or numb
Jaundice
Lumps in the neck or collar-bone region
Treatment

Treatment for cancer involves a combination of surgery to remove cancer cells, chemotherapy and radiation therapy to kill cancer cells. Lung cancer is incurable unless complete surgical removal of the tumour cells can be achieved. Surgery is the most effective treatment for lung cancer, but only a few percentage of lung cancers are suitable for surgery i.e. Stage I and II NSCLC and cancer that has not spread beyond the lung.

Radiation therapy may be used for both NSCLC and SCLC and is a good option for people who are not suitable for surgery or who refuse surgery. Chemotherapy is used for both NSCLC and SCLC. Chemotherapy drugs may be given alone or in combination with surgery or radiation therapy. Chemotherapy is the treatment of first choice for SCLC since it has usually spread extensively in the body by the time it has been diagnosed.

Also used in the treatment of lung cancer are targeted therapies. These are drugs (gefitinib and erlotinib) or antibodies (cetuximab, bevacizumab) that block the growth and spread of cancer by interfering with specific molecules involved in tumor growth and progression. They are used in some patients with NSCLC that does not respond to standard chemotherapy.

Lung Cancer: Causes, Symptoms and Treatments

Chronic Obstructive Pulmonary Disease or COPD for short is a respiratory disease that makes it increasingly difficult to breathe; the lungs stop functioning properly. There are mainly two categories of COPD which are emphysema and chronic bronchitis. The primary reason for COPD is longstanding exposure to substances such as cigarette smoke, chemical fumes and air pollutants that damage the lungs gradually.

Initially, the symptoms of COPD may be really mild but over time it may become extremely severe. These include symptoms such as:

Shortness of breath
Coughing with mucous formation
Wheezing or gasping
Tightness in the chest
Feeling tired constantly after doing normal daily activities or after exercising.
In the long run, the damages can prove to be permanent.

Of the two subtypes mentioned, bronchitis is when the airways become inflamed as well as narrowed. People suffering from bronchitis tend to produce sputum which is basically a combination of mucus and saliva.
And the other subtype, Emphysema is the condition when the air sacs in the lungs become affected. The air sacs degenerate and become baggy with lots of holes in it. This, in turn, traps air. This narrows the airways making it difficult to breathe. In COPD, there is a narrowing of the lungs because:

The lining of the airway becomes inflamed
The lining of the airways which is elastic flops
The tissues of the lungs become damaged so there is an exertion on the airway.
COPD, in the long run, can lead to a number of health complications such as heart disorders, lung cancer, respiratory infections, depression and high blood pressure. COPD is treatable but not curable because it is a life-long condition. The following are some of the treatment methods for COPD:

Oxygen Therapy- If you are experiencing low levels of oxygen then opting for a portable oxygen unit will be extremely beneficial.
Medication- Bronchodilators help in relaxing the airway muscles for comfortable breathing. These medications are usually taken via an inhaler. Other medications include corticosteroids, theophylline, vaccines and antibiotics/antivirals.
Surgery- Surgery is usually advised as the last step when the COPD condition has become so severe that all other methods of treatment have failed. This is, more possible, in the case of emphysema. There are mainly two surgical methods: one is bullectomy when the surgeons remove the damaged air sacs. The other method is lung volume reduction which removes the lung tissues that have become damaged.
Adopting certain lifestyle changes can provide relief for the time being. Such alterations include:

Quit smoking immediately, if you haven t already.
Try to avoid passive smoking as much as possible. Passive smoking is as damaging as firsthand smoking.
Give your body the daily dose of nutrition so that the immune system doesn t falter as well.

Better Living with COPD - A Patient Guide!

The sound of the word cancer can be really traumatic and the fact the one may most of the time be unaware of this condition can be hard to handle. The same is the situation in the case of lung cancer as it does not produce any remarkable signs and symptoms in its early stages. However, there are ways in which you can be aware of this life-threatening ailment. Here are some tell-tale signs of an early stage of lung cancer:

A stubborn cough:
Beware when a cough is lingering on for long with no sign of relief. When a cough is related to cold and respiratory infection, it will subside within a week or so. But in case the cough is persistent, it can be a symptom of lung cancer. You should never dismiss a stubborn cough regardless of whether it is dry or producing mucus. You should talk to a doctor right away as he can check the lungs and may order for other tests to determine whether you have cancer.

Breathing problems:
Becoming easily winded or shortness of breath is considered the most prominent symptoms of lung cancers. This may occur when cancer blocks or inhibit the airway or when the fluid from the tumor starts building up in the chest. If you find that it is becoming difficult for you to breathe in doing tasks that you found easy before, you should not ignore it.



Wheezing:
When the airways become inflamed, blocked or constricted, then the lungs would produce a wheezing and whistling sound while breathing. It can be associated with a host of other causes that are easily treatable but could also be due to lung cancer.

Headache:
Even though headaches are considered one of the most common health problems, if there is a persistent headache, then it could be a sign that lung cancer has spread to the brain. It is important to understand that all headaches are not associated with the brain metastases. There are times when the lung cancer creates pressure on the superior vena cava which is in charge of supplying blood to the upper part of the brain. This pressure can also lead to headaches.

Pain in the bone:
If the lung cancer has spread to the other parts of the body, then it may produce mild pain in the back and other parts of the body. It tends to become worse during the night when you are resting on your back. But it can be difficult for a commoner to differentiate between muscle and bone pain. In case you are suffering from bone pain, you will see that it is becoming worse with movement. Moreover, lung cancer is also associated with pain in the shoulder, neck, and arm even though it is very rare. You should be very attentive to the pain and aches in the body and consult with an expert at the earliest.

You can easily combat lung cancer if diagnosed and treatment is started in its early stages. In case you have a concern or query you can always consult an expert & get answers to your questions!

Five Signs That You Might Be Suffering From Early Stage Lung Cancer!

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