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23.10.2014 Feature Article

Permanent Seed Brachytherapy For Ghanaian Men

Permanent Seed Brachytherapy For Ghanaian Men
LISTEN OCT 23, 2014

This paper focuses on Permanent seed brachytherapy to give Ghanaian men a clear understanding of the patient cancer journey. Prostate brachytherapy (brak-e-THER-uh-pee) is a form of radiation therapy used to treat prostate cancer. Prostate brachytherapy involves placing devices containing radiation in the prostate gland close to the cancer cells.

The goal of prostate brachytherapy is to place the radiation close to the cancer cells, where the radiation can kill the cancer cells while causing less damage to healthy tissue nearby. Prostate brachytherapy side effects can include difficulty urinating and erectile dysfunction.

Prostate cancer is the model cancer for brachytherapy. The prostate gland is located under the bladder and in front of the rectum. It is vital that radiation therapy be focused in the prostate to avoid significant side effects. The prostate gland is also close enough to the skin that it can be easily reached by brachytherapy needles.

There are two major methods of prostate brachytherapy: permanent seed implantation and high-dose rate (HDR) temporary brachytherapy.

Permanent seed implants involve injecting approximately 100 radioactive seeds into the prostate gland. They give off their radiation at a low dose rate over several weeks or months, and then the seeds remain in the prostate gland permanently.

HDR temporary brachytherapy involves placing very tiny plastic catheters into the prostate gland, and then giving a series of radiation treatments through these catheters. The catheters are then easily pulled out, and no radioactive material is left in the prostate gland. A computer-controlled machine pushes a single highly radioactive iridium seed into the catheters one by one.

The Permanent seed brachytherapy, also known as low dose-rate brachytherapy, involves having tiny radioactive seeds implanted in your prostate gland. Radiation from the seeds destroys cancer cells in the prostate. As a man you will be suitable for this treatment if your cancer is thought to be contained within the prostate gland (localised prostate cancer) and:

Your PSA level is 10ng/ml or less, and
Your Gleason score is 6 or less, and
The stage of your cancer is T1 - T2a.
If Your PSA is between 10 and 20, and a Gleason score of 7, this treatment may still be an option for you as long as tests show that the cancer is unlikely to have spread outside of the prostate. You may have this treatment on its own or together with external beam radiotherapy and/or hormone therapy. It is just as good at controlling prostate cancer as other treatments.

There is another type of brachytherapy called temporary brachytherapy or high

Dose-rate (HDR) brachytherapy but it is less common than permanent seed brachytherapy.

Advantages and Disadvantages
Your stay in the hospital is less for just one or two days for the treatment.

Recovery time is quick so most men can return to their normal activities a couple of days after treatment.

You will also have a shorter period of anaesthetic with brachytherapy compared with surgery as the procedure is quicker. This means you may recover more quickly from the anaesthetic.

The radiation is inside the prostate gland and does not travel far, so there may be less damage to the surrounding areas.

There may also be less damage to the blood vessels and nerves that control erections than after other prostate cancer treatments.

Brachytherapy is not without side effects.
Brachytherapy can cause side effects such as urinary, bowel and erection problems.

It requires one or two anaesthetics, depending on the method used. Anaesthetic can have side effects. It may be some time before you will know whether the treatment has been successful. You must also know that what might be an advantage for one person may not be for someone else.

Your treatmentPathway
You will have what we call a planning session to measure the size and position of your prostate to work out how many radioactive seeds you need. This is also a final or to check for the quality that the treatment is suitable for you. You may have a general anaesthetic so that you are asleep during the procedure, or you could have a spinal or epidural anaesthetic, so that you are awake but cannot feel anything.

The radioactive seeds will either be implanted on the same day as the planning session (one-stage procedure) or they will be implanted two to four weeks later (two-stage procedure)..

You will also have a computerised tomography (CT) or magnetic resonance imaging (MRI) scan four to six weeks after the treatment to check the position of the seeds. You will need regular follow-up appointments after this to monitor your PSA level and any side effects. If your treatment has been successful, your PSA level should drop, although it may start to rise again because your prostate will still produce some PSA. Some men may experience a rise and fall in PSA at around one to two years after treatment.

Side effects of Treatment
Probablyyou may not have any side effects for several days until the radiation from the seeds begins to take effect. Side effects are generally at their worst a few weeks after treatment, when the radiation dose is strongest, but should then improve over the following months as the seeds lose their radiation.

Common side effects are:
Blood-stained urine or discolored semen for a few days or weeks.

Bruising and pain in the area between your testicles and back passage which can spread to your inner thighs and penis. This will disappear in a week or two.

Discomfort when you pass urine and needing to pass urine more often, especially at night.

Problems passing urine, erection problems, bowel problems and tiredness.

Side effects will affect each man differently, and you may not get all of the side effects.

Some men who have had brachytherapy and external beam radiotherapy together may find that they have worse side effects. If you already had urinary, erection or bowel problems before treatment, these may be worse after treatment.

Questions to ask before considering the Treatment
Which type of permanent seed brachytherapy will I have? The one-stage or two-stage procedure?

Will I have external beam radiotherapy as well as brachytherapy?

What are the chances of side effects such as urinary problems, erection problems and bowel problems with this treatment?

How will I know if the treatment has worked?
What should my PSA level be after treatment and how often will you measure it?

If my PSA continues to rise, what other treatments are available?

Registered Naturopathic doctor/Prostate Cancer expert

MSc Prostate Cancer
Sheffield Hallam University, UK
TEL: 0541090045

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Raphael Nyarkotey Obu, PhD
Raphael Nyarkotey Obu, PhD, © 2014

Prof Raphael Nyarkotey Obu is an honorary professor of holistic medicine-Vinnytsia State Pedagogical University, Ukraine and the President of Nyarkotey College of Holistic Medicine, Tema Community 7, Post office. Column: RaphaelNyarkoteyObu

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