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J Assoc Physicians India. 2013 May;61(5):332-4.

Electrical disturbance in heart by smokeless tobacco.

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Dept of Cardiology, CSM Medical University, Lucknow.
Dept of Physiology, CSM Medical University, Lucknow.


Smokeless tobacco use in the form of chewed tobacco or snuff is common in various parts of the world, including India. It is well known that smokeless tobacco consumption is responsible for cancer but less is known about its role as a risk factor for cardiovascular disease. Nicotine, the main constituent of tobacco smoke is responsible for the elevated risk of the cardiovascular disease and sudden coronary death associated with smoking, presumably by provoking cardiac arrhythmias. This review discusses some of the acute and chronic cardiac effects of smokeless tobacco on cardiovascular disease with special reference to the electrical disturbance as well as comparing nicotine kinetics between smoking and smokeless tobacco. It would further enhance the clamor to urge people to quit all forms of tobacco consumption.

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