What is the effect of radiotherapy for nasopharyngeal carcinoma

Update Date: 2024-03-03 Source: Network

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Some time ago, my elder brother always said that his nose was particularly uncomfortable. He thought he had rhinitis. After a period of recuperation, he still didn't get better. My sister-in-law took him to the hospital for examination. The doctor said it was nasopharyngeal carcinoma. Now let me talk about the effect of radiotherapy for nasopharyngeal carcinoma.

What is the effect of radiotherapy for nasopharyngeal carcinoma

First: the effect is good. Conventional external irradiation: high energy rays are often used for treatment. Gamma rays produced by cobalt treatment machine or high energy X-rays produced by medical linear accelerator can be used for neck irradiation. The radiation line with low penetrability, i.e. electron line, can be selected. The radiation field was designed according to clinical examination, imaging materials and pathological types. The first stage tumor dose in the radiation field was 36-40 Gy in 3.5-4 weeks.

Second, in the second stage, the treatment field was adjusted according to the degree of tumor regression. In the radical radiotherapy of nasopharyngeal carcinoma, the tumor dose of 60-80 Gy should be given to the skull base nasopharynx within 6-8 weeks; the tumor dose of 60-70 Gy should be given to the cervical lymph nodes within 6-7 weeks; if there is no cervical lymph node metastasis, the preventive dose of 45-50 Gy should be given to the neck.

Third: stereotactic radiotherapy, which is called X-knife. The X-ray beam produced by high-energy linear accelerator is used to irradiate the irradiated part with multiple small fields and isocentric rotation. The most important advantage of this method is that it can protect the adjacent organs from the radiation. Patients with nasopharyngeal carcinoma in the initial stage of treatment.

matters needing attention

Now there are three ways to treat cancer, such as surgery, radiotherapy or chemotherapy. These three methods have both advantages and disadvantages. Surgery is a more radical treatment, but it may spread. Radiotherapy and chemotherapy are effective, but there are many side effects.