Featured Research

from universities, journals, and other organizations

Spontaneous smoking cessation may be an early symptom of lung cancer, research suggests

Date:
March 8, 2011
Source:
International Association for the Study of Lung Cancer
Summary:
Many longtime smokers quit spontaneously with little effort shortly before their lung cancer is diagnosed, leading some researchers to speculate that sudden cessation may be a symptom of lung cancer.

Many longtime smokers quit spontaneously with little effort shortly before their lung cancer is diagnosed, leading some researchers to speculate that sudden cessation may be a symptom of lung cancer.

Most patients who quit did so before noticing any symptoms of cancer, according to the study, which was published in the March issue of the Journal of Thoracic Oncology (JTO), the official monthly journal of the International Association for the Study of Lung Cancer (IASLC).

"It is widely known that many lung cancer patients have stopped smoking before diagnosis," said Dr. Barbara Campling, professor in the Department of Medical Oncology at Thomas Jefferson University in Philadelphia. "This observation is often dismissed, by saying that these patients must have quit because of symptoms of their cancer. However, we found that the majority of lung cancer patients who stopped smoking before diagnosis quit before the onset of symptoms. Furthermore, they often quit with no difficulty, despite multiple previous unsuccessful quit attempts. This has led us to speculate that, in some cases, spontaneous smoking cessation may be an early symptom of lung cancer."

Researchers interviewed 115 lung cancer patients from the Philadelphia Veterans Affairs Medical Center, all of whom had been smokers. Fifty-five (48%) had quit smoking before diagnosis, and only six of those (11%) had experienced symptoms of lung cancer by the time they quit. Patients with lung cancer who quit were as dependent on nicotine, when their smoking was at its highest point, as those who continued to smoke. Yet 31% reported quitting with no difficulty.

For comparison, researchers also interviewed patients with prostate cancer and those who had suffered a heart attack. They found that the median interval between quitting smoking and lung cancer diagnosis was 2.7 years. This compared with 24.3 years for prostate cancer and 10 years for a heart attack.

Researchers speculated that spontaneous smoking cessation may be a presenting symptom of lung cancer, possibly caused by tumor secretion of a substance interfering with nicotine addiction.

The results should not encourage smokers to continue smoking, Campling said.

"There is a danger that this study could be misinterpreted as suggesting that heavy smokers should continue smoking," Campling said. "We emphasize that all smokers must be strongly encouraged to stop."

The research was supported by a grant from the Veterans Affairs Healthcare Network Competitive Pilot Project.


Story Source:

The above story is based on materials provided by International Association for the Study of Lung Cancer. Note: Materials may be edited for content and length.


Journal Reference:

  1. Barbara G. Campling, Bradley N. Collins, Kenneth M. Algazy, Robert A. Schnoll, Miu Lam. Spontaneous Smoking Cessation Before Lung Cancer Diagnosis. Journal of Thoracic Oncology, 2011; 6 (3): 517 DOI: 10.1097/JTO.0b013e318208c7da

Cite This Page:

International Association for the Study of Lung Cancer. "Spontaneous smoking cessation may be an early symptom of lung cancer, research suggests." ScienceDaily. ScienceDaily, 8 March 2011. <www.sciencedaily.com/releases/2011/03/110301091119.htm>.
International Association for the Study of Lung Cancer. (2011, March 8). Spontaneous smoking cessation may be an early symptom of lung cancer, research suggests. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2011/03/110301091119.htm
International Association for the Study of Lung Cancer. "Spontaneous smoking cessation may be an early symptom of lung cancer, research suggests." ScienceDaily. www.sciencedaily.com/releases/2011/03/110301091119.htm (accessed April 17, 2014).

Share This



More Health & Medicine News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Thousands Of Vials Of SARS Virus Go Missing

Thousands Of Vials Of SARS Virus Go Missing

Newsy (Apr. 16, 2014) A research institute in Paris somehow misplaced more than 2,000 vials of the deadly SARS virus. Video provided by Newsy
Powered by NewsLook.com
Formerly Conjoined Twins Released From Dallas Hospital

Formerly Conjoined Twins Released From Dallas Hospital

Newsy (Apr. 16, 2014) Conjoined twins Emmett and Owen Ezell were separated by doctors in August. Now, nearly nine months later, they're being released from the hospital. Video provided by Newsy
Powered by NewsLook.com
Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins