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Lung Cancer Life Expectancy

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The human lung can be divided into right lung and left lung. Right lung has three lobes and the left lung has got two lobes. Lingula is a structure present in the left lung that corresponds to the middle lobe of the right lung. The bronchi are the main air passage to the lungs. They further get narrower to form bronchioles which have got sac like structure at the end. This sac like structure at the end is called as alveoli where the exchange of gases takes place.

Carbon dioxide from the impure blood is replaced by oxygen. This blood which is replaced by the oxygen is called impure blood which is taken from the lungs to the heart. From the heart it is circulated throughout the body. The oxygenated blood is carried by the arteries which reduce in size and become narrow to form capillaries. Capillaries supply oxygenated blood to every cell in the body.

In case of a lung cancer, the tumor formed in the lung obstructs or blocks the air flow in that part of the lung. This makes it difficult for the lungs to perform their function with ease. The blockage leads to the shortness of breath. One of the major reasons of lung cancer is smoking.

Lung Cancer Life Expectancy

Expecting a life expectancy of five years after the therapy of lung cancer is not impossible. The life expectancy depends upon the period within the structure of lung cancer, when it was diagnosed, the treatments used to cure the cancer and whether the cancer has recurred or not.

The survival rate for the patients who underwent radiation therapy alone is one year for about 57% patients, two years for about 36% patients and three years for about 21% patients. Patients who underwent combination of radiation therapy along with thermal ablation show higher percentage of survival rate.

87% of patients show survival rate of one year, 70% patients show survival rate of two years and 57% people show the survival rate of three years. Life expectancy is increased when treatments were given in combination. The recurrence rate is also reduced significantly.

It is observed that lung cancer is mostly developed in the older people. 2 people out of 3 diagnosed with lung cancer are above the age of 65. Just 3% of patients below the age of 45 accounts for the lung cancer. The risk of developing lung cancer in the males is higher than females. The ratio male lung cancer is 1:13 whereas for the females is 1:16. This comprises both smokers and non-smokers. It is true that people who smoke are at a much higher risk of developing lung cancer than people who do not smoke. Prognosis has a close relation with lung cancer life expectancy.

The statistics for lung cancer estimated by the American Cancer Society is:

  1. 115,060 men and 106,070 women, total 221,130 new cases of lung cancer will be diagnosed in the year 2011.

  2. The estimated deaths of people from the lung cancer are 85,600 men and 71,340 women total 156,940 lung cancer patients in the year 2011.

People who quit smoking later in their life are also at reduced risk of getting lung cancer than people who continue smoking. It is rightly said that "better late than never." So, if you are addicted to smoking, better quit the habit before it is too late. Rehabilitation centers will help you in getting rid of your smoking addiction.

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