Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Patients with cancer detected on screening mammography undergo less toxic treatment

28.12.2004


Women who have their breast cancers detected by physical examinations are at least twice as likely to undergo toxic treatments than those who have their cancer detected by mammography—regardless of the age of the woman, a new study shows.



The study reviewed 992 women with invasive breast cancer—460 of them had their cancer detected on screening mammography and 532 on physical examination, said the lead author of the study, Richard J. Barth, Jr., MD, Chief of the Division of Surgical Oncology at Dartmouth-Hitchcock Medical Center.

Overall, patients whose cancer was detected at physical examination were three times more likely to be treated with chemotherapy than those who had their cancer detected by screening mammography, said Dr. Barth. Women in the 40-49 age group were about two times more likely and women in the 70 and older age group were about five times more likely to undergo chemotherapy if their cancer was detected by physical examination, Dr. Barth said.


Chemotherapy is commonly recommended for patients with tumors larger than 1 cm in diameter or with cancer that has spread into the lymph nodes, he said. Cancers detected by mammography were half as large as those detected by physical exam. In addition, only 16% of those patients whose tumors were detected by mammography had cancer spread to the lymph nodes compared with 42% of those who had their breast cancer detected on physical examination, he said.

Overall, patients who had their breast cancer detected on physical examination were more than twice as likely to be treated with mastectomy rather than breast conservation, Dr. Barth added. Women in the 70 and older age group were about five times more likely to have a mastectomy if their cancer was detected by physical examination rather than mammography. Women in the younger age group were also more likely to have a mastectomy if they had their cancer detected by physical examination, Dr. Barth said.

While there continues to be debate on whether screening mammography increases survival of women ages 40-49 and 70 and older, there is no doubt that mammography detects cancer earlier, Dr. Barth said. This study emphasizes that screening mammography allows patients who are unfortunate enough to develop breast cancer to be treated with less-toxic therapy, regardless of their age. It provides strong supporting evidence that women over 40 should be screened with mammography, he said.

The study appears in the January 2005 issue of the American Journal of Roentgenology.

Jason Ocker | EurekAlert!
Further information:
http://www.arrs.org

More articles from Health and Medicine:

nachricht Purdue cancer identity technology makes it easier to find a tumor's 'address'
16.11.2018 | Purdue University

nachricht Microgel powder fights infection and helps wounds heal
14.11.2018 | Michigan Technological University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Purdue cancer identity technology makes it easier to find a tumor's 'address'

16.11.2018 | Health and Medicine

Good preparation is half the digestion

16.11.2018 | Life Sciences

Microscope measures muscle weakness

16.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>