Thank you for your query at DoctorSpring.com
We do not have enough evidence to support lung screening to prevent lung cancer.
However there is enough evidence that smoking causes cancer, increase risk in those who are predisposed.
So I will not suggest to do screening. But to quit smoking.
Once you quit smoking, automatically the chances will be minimised and certain cases even reversed. Nicotine is the main contributor, but provided you stop, and also the fact that you're so young, you have no reason to worry. Giving up smoking is the main issue. If you can do that, there is no problem really.
You can take a good multivitamin + antioxidant combination available locally such as Neurobion Forte, once daily at bed time.
Feel free to discuss further,
Dr. Jacob George P
MD IDCCM FCCP
Patient replied :
Thank you Dr. Pulinilkunnathil,
You say that nicotine is the main contributor. What do you mean by this? My understanding is that plant matter, when smoked, produces a tar residue that accumulates in the lungs. I thought nicotine was simply the chemical responsible for addiction to using cigarettes. I was wondering if you could send to me any medical research showing the physiologic steps that lead to lung cancers, or a peer reviewed article/summary of potential lung cancers and how they might develop.
Thank you for the follow up.
I am sorry i was not clear about the role of nictotine initially.
Yes it is the tar that keeps accumulating and causes the cancer, i meant to say nicotine, leading to addiction, is the main contributor which makes a person continue smoking.
Some recent studies claim nicotine induces angiogenesis, and also helps in maintaining the tumor, and favors it's growth. But a lot of other research needs to go into this statement.
I am sending you the link of an article by American Cancer Society. I find it really useful.