Yes, for many medical applications, especially cancer treatment, the benefits of radiation (curing disease, relieving symptoms) generally outweigh the risks (side effects like fatigue, skin changes, and potential long-term risks), with doctors carefully weighing these factors for each patient using precise techniques to minimize harm to healthy cells.
Fatigue is one of the most common side effects of radiation therapy. It usually happens after a few weeks of radiation therapy and can get worse as treatment goes on. It can be caused by a number of things. During radiation therapy, your body uses more energy to heal itself.
Whether you have radiotherapy as part of your treatment depends on what type of cancer you have, how big it is and whether it has spread or not. Radiotherapy is good at treating certain cancers, whilst some are more resistant to radiation. This means radiotherapy would have less of an effect on these cancers.
Radiation therapy can be used to treat many kinds of cancer in almost any part of the body. In fact, more than half of all people with cancer are treated with some form of radiation. For many cancer patients, radiation is the only kind of treatment they need.
Missed Radiation Therapy Sessions Increase Risk of Cancer Recurrence. Patients who miss radiation therapy sessions during cancer treatment have an increased risk of their disease returning, even if they eventually complete their course of radiation treatment, according to a new study.
Radiation not only kills or slows the growth of cancer cells, it can also affect nearby healthy cells. Damage to healthy cells can cause side effects. Many people who get radiation therapy have fatigue. Fatigue is feeling exhausted and worn out.
Of all 309,278 patients, 2.2% refused RT. Refusal remained fairly stable over the examined time period with annual rates ranging between 1.3% and 2.8% (Fig. 1). Patients who were older, male and unmarried (particularly widowed) were more likely to refuse RT.
For example, the following tissues and organs are listed from most radiosensitive to least radiosensitive:
Types of cancer that are treated with radiation therapy
Brachytherapy is most often used to treat cancers of the head and neck, breast, cervix, prostate, and eye. A type of brachytherapy called radioembolization may be used to treat liver cancer or cancer that has spread to the liver.
Radiation therapy and chemo are often combined to treat cancer. While both treatments are effective, chemo generally produces more serious side effects than radiation therapy. How radiation therapy is used to treat cancer. American Cancer Society.
While chemotherapy aims to keep the disease from spreading, radiation focuses on particular cells. Chemotherapy can also affect the entire body, while radiation repairs only the affected cells. Both treatments can cause side effects, including hair loss, nausea and fatigue.
The ionizing radiation dose for these procedures is typically higher than the dose received from a common x-ray procedure. There are always some possible risks from exposure to ionizing radiation in healthcare, but these procedures should be used when the health benefits outweigh these risks.
The trial team found that having 5 doses of radiotherapy over 1 week worked as well as having 15 doses over 3 weeks. The team also found that having it over 1 week didn't increase the long term side effects.
Radiation can interact with DNA directly and cause damage by breaking bonds in the DNA. It can also harm DNA indirectly by breaking water molecules surrounding the DNA. When these water molecules are broken, they produce unstable ions and other molecules that can damage cells and organs.
The decision whether to use radiotherapy is made on a patient-by-patient basis. Different tumour types respond to radiotherapy in different ways so all patients require an individualised treatment plan. In general, radiotherapy is very effective at curing cancer but it is not suitable for all types of cancer.
Most people start feeling fatigued after a few weeks of radiation therapy. It usually gets worse as treatment goes on. It can last a long time and get in the way of normal activities, but it usually goes away over time after treatment ends.
Lung and bronchus, colorectal, pancreatic, and breast cancers are responsible for nearly 50% of all deaths.
Which treatments are worth trying?
Ionizing Radiation
Bone and soft-tissue sarcomas are the most frequent SMNs following radiation therapy, but skin, brain, thyroid, and breast cancers also can occur. Radiation doses less than 30 Gy tend to be associated with thyroid and brain tumors, whereas doses greater than 30 Gy can evoke secondary sarcomas.
In addition, the epithelium of the digestive tract is constantly metabolized and is also highly sensitive to radiation. On the other hand, nerve tissues and muscle tissues, which no longer undergo cell division at the adult stage, are known to be resistant to radiation.
In some people, radiotherapy can make your skin sore, change colour (it might become red, lighter or darker than your normal skin tone), or dry and itchy. Sometimes it can blister and peel. This tends to start 1 to 2 weeks after treatment begins. Tell your care team if you notice any soreness or changes to your skin.
Alpha particles are the most harmful internal hazard as compared with gamma rays and beta particles. Radioactive materials that emit alpha and beta particles are most harmful when swallowed, inhaled, absorbed, or injected. Gamma rays are the most harmful external hazard.
Living organisms have evolved on Earth for about 4 billion years in the presence of the natural background of ionizing radiation even if it was not always the same as today. Without it, life on Earth could not have existed or would not exist in the present form.
After treatment finishes, you will have regular check-ups to see how the cancer has responded to treatment. This may be in person at the treatment centre or using telehealth. You may see the radiation oncologist, your GP or another specialist, depending on where you live and what the treatment team recommends.
While radioresponsive tumors start to shrink in a few days, most head and neck cancers may take weeks or longer to shrink. Some low-grade, slowly proliferating tumors histologically appear to be viable for prolonged periods after irradiation.