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Brief postlumpectomy irradiation seems effective. (Prospective Study).

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| October 01, 2002 | Kirn, Timothy F. | COPYRIGHT 2002 International Medical News Group. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

A shorter course of irradiation after breast cancer lumpectomy is as effective as a longer course, reported Dr. Timothy Whelan of McMaster University, Hamilton, Ont., and his colleagues.

Their study prospectively compared irradiation on a 22-day schedule, in which 42.5 Gy total was delivered, with a 35-day schedule, in which 50 Gy was delivered, the current standard of practice in the United States. Local recurrence-free survival at 5 years was 97% in the 622 patients in the short-course group and 96% in the 612 patients in the long-course group. This difference between groups was not statistically significant (J. Natl. Cancer Inst. 94[15]:1143-50, 2002).

Cosmetic outcome, which was used as a measure of late radiation damage, was also the same. At 5 years, 77% of short- and long-course patients had either an excellent or good cosmetic outcome.

In an editorial accompanying the report, ...

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