A new study says cancer surgery performed at a medical center designated by the National Cancer Institute (NCI) as a "center of excellence" is associated with less risk of death soon after surgery than if performed at a high-volume surgery center, but finds no difference in five-year survival rates. The full study will be published in the February 1, 2005 issue of CANCER, a peer-reviewed journal of the American Cancer Society. This study was supported by grants from the NCI and the Agency for Healthcare Research and Quality (AHRQ).
In 1971 the NCI created a program to award cancer centers special designation as centers of regional excellence if they demonstrated excellence in three areas: research, cancer prevention, and clinical services. NCI cancer centers are well staffed with specialists, tend to have high procedure volumes, and better access to multidisciplinary consultation and the latest therapies--all reasons to believe they would have better outcomes than other cancer centers. Although these centers often advertise their superior outcomes, say the studys authors, to date their relative performance has not been examined.
Nancy J. O. Birkmeyer, Ph.D. from the Department of Surgery at the University of Michigan Medical School and her colleagues investigated whether this designation actually improves survival. The investigators reviewed data from 63,860 cancer patients who underwent cancer surgery. Patients treated at one of the 51 NCI cancer centers were compared to those from 51 control cancer centers with the highest volumes for each procedure.
New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
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21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy