Monday, October 1, 2012

Secondhand Smoke May Predispose To Chronic Sinusitis!


If you have constantly clogged and swollen nose and sinuses, secondhand smoke - even in small amounts - may be one to blame! Although the harmful effects of smoking are well recognized, the secondhand smoke (also known as passive smoke) also can cause or contribute to various health problems. Passive smoke contains over 4000 substances, of which many are strong irritants, and over 50 are either known or suspected to cause cancer. And - according to the newest studies, secondhand smoke may be responsible for up to 40% of cases of chronic sinusitis!

In the study by dr. Tammemagi et al. (published in the Archives of Otolaryngology-Head & Neck Surgery journal) observed were 306 non-smoking patients who had been diagnosed as having chronic rhinosinusitis. The chronic sinusitis describes a range of unpleasant symptoms (lasting for 12 weeks or more!) that include nasal and sinus inflammation, congestion, cough, runny nose, breathing difficulties, and a reduced sense of smell. It is estimated that 16-20% of adults are suffering from this disease. In the United States only - chronic sinusitis is responsible for approximately 22 million physician visits and more than 500 000 emergency department visits annually!


In described study - the exposure of 306 non-smoking patients with sinusitis to secondhand smoke at home, work, in public places and at private social functions was compared with that of 306 individuals who were the same age, sex and race but did not have sinusitis. In each setting, more people diagnosed with sinusitis reported being exposed to secondhand smoke. For instance - more than 50% of those with sinusitis said they’d inhaled secondhand smoke at private parties and social functions, compared to just 28% of those who did not have sinusitis! In general - about 40% of chronic sinusitis cases in the study seemed to be attributable to passive smoking.

Secondhand smoke is already known to cause many other diseases. Passive smoke exposure increases susceptibility to respiratory infections or worsens infection in adults and children. As a factor which may predispose someone to develop sinusitis, secondhand smoke can inhibit immune cells and function, impair sinonasal mucociliary clearance (the self-clearing mechanism of the nose and sinuses), increase susceptibility to certain bacteria, and enhance allergic reactions to inhaled allergens.

It is estimated that 60-80 percent of all non-smokers in developed countries are exposed to secondhand smoke, making it a major public health problem. On the basis of findings of above mentioned study, patients who are susceptible to chronic sinusitis or who have chronic sinusitis should avoid exposure to secondhand smoke!
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REF:
Tammemagi CM et al. Secondhand Smoke as a Potential Cause of Chronic Rhinosinusitis. A Case-Control Study. Arch Otolaryngol Head Neck Surg. 2010;136(4):327-334. doi:10.1001/archoto.2010.43.

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