Colon cancer treatmentStage 1 and 2 colon cancer only require surgery and basically do not require chemotherapy, except for patients with a high risk of recurrence who may undergo several chemotherapy treatments before surgery, which is medically called neoadjuvant chemotherapy.
In the third stage, surgery is also performed, followed by complete adjuvant chemotherapy to ensure that the tumors disappear. In the fourth stage, chemotherapy or targeted therapy will be recommended to shrink the primary tumor and reduce the difficulty of surgery, while also giving the opportunity to Distal metastases were reduced and then removed.
Because 95% of colon cancer is caused by adenomatous polyps, it usually takes more than 10 years for adenomatous polyps to turn into cancer, and it takes another 5 to 10 years to reach stage 4, so usually stage 4 The patients are all older, usually over 60 or 70 years old.
colorectal cancer tumors cancer drugs exerciseAt present, targeted therapy is a relatively advanced treatment method. Targeted therapy generally needs to be added on the basis of chemotherapy. Different targeted drugs are suitable for different types of tumors. Corresponding genetic testing should be done before using targeted drugs. Only after Only the use of targeted drugs guided by genetic testing results can exert anti-tumor effects.
Some patients may also wonder, if chemotherapy is ineffective and targeted therapy is too expensive, can I use radiotherapy to kill cancer cells? The doctor said that radiation is a kind of high-energy destruction. Every time it destroys a little bit, the cancer cells will be damaged a little bit. The healthy normal tissue will slowly recover on its own, but the cancer cells will not, thus eliminating the tumor.
However, there are also small intestine, bladder, and uterus near the colon, and the small intestine in particular is very sensitive to radiation. For people who are already relatively weak, radiation will damage too many organs, and it will have too many harmful effects on the body. There are serious side effects, so this is not recommended.
colorectal cancer tumors cancer drugs exerciseRectal cancer treatmentAs for rectal cancer, surgery is also the main treatment for stage 0 to 1. However, there are not many organ problems around the rectum, but the pelvic cavity is small and difficult to operate.
If the location of the tumor is too low, it usually has to be removed together with the anus. In the future, stool can only come out from the artificial feces bag on the belly, which causes a lot of psychological pressure on the patient's postoperative life. Therefore, radiation therapy will be combined from the second stage. Let the tumor shrink first before performing surgery. After surgery, chemotherapy will be performed as appropriate to preserve the anus as much as possible.
colorectal cancer tumors cancer drugs exerciseHowever, whether to have an artificial anus depends on the location, size, growth pattern of the tumor, pathological type of the tumor, general condition of the patient, etc. Rectal cancer has a higher recurrence rate than colon cancer because the rectum is shorter and has a complex structure. Later, adjuvant chemotherapy will be recommended to ensure that the cancer cells are eliminated as cleanly as possible.