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Smoking cessation products pose no serious heart risks: study

English.news.cn   2013-12-10 07:27:34            

WASHINGTON, Dec. 9 (Xinhua) -- Nicotine replacement gums and patches or popular drugs prescribed to help people quit smoking such as Chantix may not harm the heart in users, according to a study published Monday in the American Heart Association journal Circulation.

In recent years, there has been concerns that some smoking cessation products may have serious cardiovascular risks.

But in the largest analysis of side effects of three major smoking cessation products, serious heart events didn't increase with nicotine replacement gums and patches, the nicotine addiction treatment Chantix, and the antidepressant Wellbutrin, the researchers said.

The new study looked at 63 clinical trials, which comprised 30, 508 people, and found that overall, smoking cessation is associated with improved cardiovascular health, increased life expectancy, improved quality of life and reduced healthcare costs for smoking-associated conditions.

"Undoubtedly, the benefits of quitting smoking outweigh any potential risks from smoking cessation therapies," said Edward Mills, study co-author and associate professor of medicine at Stanford University and Canada Research Chair at the University of Ottawa.

Although nicotine replacement therapy via patch or gum was linked to a risk of a rapid or irregular heartbeat, the researchers said the heart symptoms were minor and temporary.

"These more minor risks are well known to clinicians and usually pass with time," Mills said. "They occur most often when people are taking nicotine replacement therapy and smoking at the same time, which is a bad idea."

Previous research found that combination nicotine replacement therapy, wearing a patch and using nicotine gum when there is the urge to smoke, may be more effective but lead to more side effects than the gum or patch alone.

But Mills said most patients in the analysis were relatively healthy, so the results may not be true for everyone.

"It's possible that the risk factors might be different in people with multiple diseases," Mills said. "Patients should discuss with their healthcare provider any potential risk factors that they may have developed from their smoking history. For patients who have chronic lung disease or other associated cardiovascular risks, clinicians should determine which smoking cessation aid to use by their risk profiles."


Smoke prompts evacuation, flight cancellation in U.S. airport

HOUSTON, Dec. 8 (Xinhua) -- Smoke and power outage at a terminal in Houston's George Bush Intercontinental Airport prompted evacuation and flight cancellations Sunday, local media reported.Full Story

Smoking after cancer diagnosis ups death risk: study

WASHINGTON, Dec. 6 (Xinhua) -- Men who continued to smoke after being diagnosed with cancer had an increased risk of death compared with those who quit smoking, U.S. researchers said Friday.

The new research, published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research, showed it is not too late to stop smoking after cancer diagnosis, the researchers said.Full Story

Editor: Mengjie
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