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 GLUT5 fluorescent probe fingerprints cancer cells
20.04.2018 | Michigan Technological University

nachricht Scientists re-create brain neurons to study obesity and personalize treatment
20.04.2018 | Cedars-Sinai Medical Center

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: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Quantum Technology for Advanced Imaging – QUILT

24.04.2018 | Information Technology

AWI researchers measure a record concentration of microplastic in arctic sea ice

24.04.2018 | Earth Sciences

Complete skin regeneration system of fish unraveled

24.04.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>