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Lung Cancer Awareness Month: Here's Everything You Need To Know About Lung Cancer Treatment

Lung Cancer Awareness Month 2020: Several factors can put non-smokers at a higher risk of lung cancer. Read here to know risk factors of lung cancer and how it is treated.

Lung Cancer Awareness Month: Heres Everything You Need To Know About Lung Cancer Treatment

The month of November is observed as Lung Cancer Awareness Month

HIGHLIGHTS

  1. Smoking is one of the leading causes of lung cancer worldwide
  2. A healthy lifestyle can help lung cancer risk
  3. Poor air quality also affect lung cancer risk of an individual

Lung cancer is the most common type of cancer and cancer-related fatalities worldwide. According to Globocon, there are approximately 2.1 million lung cancer cases and 1.8 million deaths due to it in 2018. Although smoking is the most important etiological factor for lung cancer, the worldwide trends in the past two decades indicate a sharp rise in lung cancer in the non-smoking population. As per the data, lung cancer incidences have increased by three to four-folds to about 40% in the non-smoking-population. The deteriorating outdoor air quality is the primary reason for this phenomenon. Outdoor air pollution is a Category 1 carcinogen), as per the World Health Organisation's grading of cancer-causing agents. Reports also highlight that the inhalation of polluted air in metro cities is almost equivalent to smoking 10 to 20 cigarettes per day, depending on various locations. Other causes of lung cancer are air pollution, including indoor air pollution, family history of cancer, history of lung disease and occupational exposure(working in cement ,textile ,astestos industries etc ).

Broadly, there are two types of cancers- small cell carcinoma and non-small cell carcinoma. Approximately 85% of lung cancers are a non-small cell type that can be categorised into Adenocarcinoma, Squamous cell carcinoma and large cell carcinoma. Out of these, Adenocarcinoma is more common in females and non-smokers.

Also read: High Fibre Diet Reduce Lung Cancer Risk, Says Study; Know Other Health Benefits And Food Sources Of Fibre


The common symptoms are non-relieving cough for more than two weeks, fever, chest pain and haemoptysis (coughing of blood originating from the respiratory tract), shortness of breath, loss of appetite, chest discomfort, hoarseness of voice and weight loss etc. The sign and symptoms of lung cancer are same as due to tuberculosis and some of the other respiratory disease this is one of the reason of delayed presentation of lung cancer patient as they are treated for other disease and only investigated or referred when there symptoms are not relieved. Unfortunately, in most cases, lung cancer is detected in later stages, but if detected early, lung cancer is curable.

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Early detection play a key role in lung cancer treatment
Photo Credit: iStock

The multiple modalities in treatment of lung cancer include surgery, chemotherapy, radiotherapy, immunotherapy and targeted therapy. The treatment option depends on the stage of disease and fitness of the patient. Surgery followed by chemotherapy is the best option for the patient presenting in the early stage. The early cases can be managed by the VATS (keyhole) procedure with a good outcome. Surgical options include segmentectomy (removing a segment), lobectomy (lobe of the lung), pneumonectomy (removing the entire lung) along with a systemic lymph node dissection.

Also read: Lung Cancer Prevention: Superfoods To Lower Lung Cancer Risk

Advanced cases require Radiotherapy and Chemotherapy, whereas intent of treatment in metastatic or stage IV disease is palliation. Targeted therapy and immunotherapy are newer modalities in the treatment of advanced and metastatic lung cancer. These modalities are better tolerated and comparatively easy options in a selective group of mutation-positive patients, but they are slightly expensive. The intent of treatment in stage IV disease is not curative as the disease has already progressed, so it is advisable to utilize the patient's medical resources judiciously.

Also read: 7 Ways To Lower Lung Cancer Risk

Like other diseases there are ways to prevent lung cancer. The best is to stop smoking and undertake a lifestyle modification.

Screening (detection of lung cancer in asymptomatic but high risk population) plays very important role in lung cancer. Any individual aged above 55 years with a history of smoking one or more packets of cigarettes daily for more than 30 years, even if he had quit smoking but duration is less than 15 years, should undergo screening with low dose CT-Scan for three consecutive years. It has been proved beyond doubt that screening with low dose CT scan detect lung cancer in early stage and it decreases the mortality (death due to lung cancer) significantly.

(Dr. Parveen Yadav, Associate Chief and Sr. Consultant, Thoracic Surgery and Surgical Oncology, Artemis Hospitals)


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