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High dosage brachytherapy obtains excellent results in head and neck tumors
Date:3/27/2009

ation. Using this technique, they have managed to intensify the radiation dosage with the goal of reducing relapse rates.

In certain treatments, brachytherapy provides better end-result possibilities than conventional radiotherapy. The procedure enables the administration of doses that would not be easily achieved using other techniques, due to toxic effects, explained the specialist from the University of Navarra Hospital.

Two weeks of treatment less

Moreover, the use in brachytherapy of high dosages involves a series of benefits for the patient as regards the overall treatment. The great advantage, points out Doctor Martnez-Monge, is the reduction of total time. While conventional radiotherapy treatment lasted seven weeks, administering part of the radiation through brachytherapy can take two weeks less.

This technique also manages to reduce the time of radiation compared to treatment with low dosage brachytherapy. Thanks to the existence of new sources of radiation, the treatment is released in a matter of minutes. Before the patient under brachytherapy treatment carried the radioactive source for several days and, thus, had to be isolated in a lead-lined room, with limitations on visits and nursing care. With high-dosage brachytherapy, however, the patient is only radioactive during the actual administration of the treatment; as such, the rest of the time can be spent in a conventional room.

For the administration of this technique it is necessary to prepare the affected region during the surgical operation. On extirpating the tumour, the surgeon covers the surgery zone the area with greatest possibilities for relapse with a series of plastic tubes which are subsequently filled with radioactive material, the aim being to effect a highly selective and precise radiation. Brachytherapy is introduced through these tubes, one end of which appears at the surface of the skin, like a drainpipe, explained Doctor Rafael
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Contact: Oihane Lakar
oihane@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert

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