Sunday November 17, 2019

Study Reveals Shorter Duration of Radiation Safe in Treating Prostate Cancer

This method is both safe and effective and could be a viable treatment option for men with low and intermediate-risk of prostate cancer, the study suggested.

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The study showed that this type of radiation - stereotactic body radiotherapy - is a form of external beam radiation therapy, which reduces the duration of treatment from 45 days to four to five days with no evidence of causing worse toxicity in the long run. Pixabay

Men with low or intermediate-risk prostate cancer can safely undergo higher doses of radiation over a significantly shorter period of time and still have the same, successful outcomes as from a much longer course of treatment, according to researchers including one of Indian-origin.

The study showed that this type of radiation – stereotactic body radiotherapy – is a form of external beam radiation therapy, which reduces the duration of treatment from 45 days to four to five days with no evidence of causing worse toxicity in the long run.

“Most men with low or intermediate-risk prostate cancer undergo conventional radiation, which requires them to come in daily for treatment and takes an average of nine weeks to complete,” said lead author Amar Kishan, Assistant Professor at University of California, Los Angeles, in the US.

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Nearly, 53 per cent men had low-risk disease, 32 per cent had less aggressive intermediate-risk disease and 12 per cent had a more aggressive form of intermediate-risk disease. Pixabay

“With the improvements being made to modern technology, we have found that using stereotactic body radiotherapy, which has a higher dose of radiation, can safely and effectively be done in a much shorter timeframe without additional toxicity or compromising any chance of a cure,” said Kishan.

For the study, the team included 2,142 men with low or intermediate-risk prostate cancer who were treated with stereotactic body radiotherapy. They were followed for a median of 6.9 years.

Nearly, 53 per cent men had low-risk disease, 32 per cent had less aggressive intermediate-risk disease and 12 per cent had a more aggressive form of intermediate-risk disease.

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These are essentially identical to rates following more conventional forms of radiation, which are about 4-5 per cent for low-risk disease and 10 per cent to 15 per cent for intermediate-risk disease. Pixabay

In addition, the recurrence rate for men with low-risk disease was 4.5 per cent, 8.6 per cent for the less aggressive intermediate-risk, and 14.9 per cent for the more aggressive intermediate-risk group, findings published in the journal JAMA Network Open showed.

Overall, the recurrence rate for intermediate-risk disease was 10.2 per cent.

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These are essentially identical to rates following more conventional forms of radiation, which are about 4-5 per cent for low-risk disease and 10 per cent to 15 per cent for intermediate-risk disease.

This method is both safe and effective and could be a viable treatment option for men with low and intermediate-risk of prostate cancer, the study suggested. (IANS)

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Here’s Why Complimentary Cancer Therapies Can Cause More Harm

Doctors need to be more proactive about asking their patients what else they are taking when they are being treated for cancer

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It is particularly important that patients always check with their doctors first before trying complementary therapies for Cancer that has spread to the skin. Pixabay

A medical expert has said that Cancer patients should tell doctors treating them about the herbal products they may be taking since some ingredients could affect their treatment.

Maria Joao Cardoso, the head breast surgeon at the Champalimaud Cancer Centre in Lisbon, Portugal, said that there was no evidence that herbal therapies or creams worked.

If in doubt, it is best not to take anything, she added.

Garlic, ginger and ginkgo pills, for example, can delay the healing of skin wounds when breast cancer spreads, she said.

“Doctors need to be more proactive about asking their patients what else they are taking when they are being treated for cancer,” Cardoso told the BBC.

She said that it is particularly important that patients always check with their doctors first before trying complementary therapies for cancer that has spread to the skin. This happens in one in five cases of breast cancer, and less in other cancers.

The danger is that many products can interfere with the hormone therapy or chemotherapy treatments, and certain ones prolong the blood clotting process, which can lead to wounds taking longer time to heal and more scarring.

She said that herbal products like green chiretta, feverfew, garlic, ginkgo, ginseng, hawthorn, horse chestnut and turmeric slow down clotting.

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A medical expert has said that Cancer patients should tell doctors treating them about the herbal products they may be taking since some ingredients could affect their treatment. Pixabay

Cardoso said that it is not surprising that patients and their carers go searching for complementary or alternative treatments that might make a difference.

But she said people should know that “they could end up doing more harm than good”.

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“The highest goal in medicine is important to remember: Do no harm,” she said.

As per the website of Cancer Research UK, some complementary therapies might stop conventional treatments working as well as they should. (IANS)