If a polyp is found during a colonoscopy, most polyps are removed directly as appropriate, and there is no pain associated with the removal of the polyp. There are painless colonoscopies available, but with or without anesthesia, polyps can be removed during a colonoscopy.
Article / Hong Wenlan
Early colorectal cancer has a very high cure rate, and if detected early, the prognosis is excellent, and colorectal cancer and polyps have a close relationship, if polyps are detected early to be removed, you can avoid further cancerous chances, and effectively prevent the occurrence of colorectal cancer. Unless it is a very large polyp, there may be bleeding, otherwise the early polyp does not have obvious symptoms, most patients are found in the health checkup in the intestines have polyps.
Polyps left uncut have a high risk of becoming cancerous
According to the statistics, if polyps are left uncut, 2.4% of them will evolve into cancer after 5 years, 8% after 10 years, and 24% after 20 years.
Chen Guan-yang, director of the Division of Gastroenterology at Taipei City United Hospital's Renai Campus, pointed out that more than 90% of colorectal cancers are caused by polyps, and once polyps are found, most of the polyps are directly excised, unless the physician can be sure that the polyps are benign, such as inflammation or cellular hyperplasia, then the polyp is usually directly excised.
The different types of polyps have different chances of evolving into cancer. If the physician determines that the polyp is an adenoma *** because it is a precursor to cancer, the adenoma *** should be removed if detected, so as to prevent it from further evolving into cancer in the future.
Response to location
The way of removing polyps depends on the shape of the polyp and other characteristics of the polyp. When removing a polyp, not only does it depend on the size of the polyp and its base, but it also depends on the way of removing it, and it also depends on the appearance of the polyp.
◎ Larger polyps with a rhizomatous appearance: can be removed with an electrocautery knife after the polyp has been covered with a mesh.
Chen Guan-yang pointed out that if the bottom of the polyp is wider, the risk of excision is higher; if the polyp is like a mushroom, it is a stemmed polyp, and the safety of excision is higher; if it is a flat polyp, it is not only not easy to be found, and the excision of the first drug will be bulging, not only the excision of the time is longer, and the wound will be bigger. If the polyp has invaded the submucosa, or even the muscle layer and is malignant, the endoscope may not be able to remove the polyp cleanly, and the surgeon will need to do further treatment to assess the need to remove part of the colon and lymph nodes.
Painless colonoscopy to relieve discomfort
The action of removing polyps itself does not cause pain to the patient, but after all, if you need to remove the polyps, the instrument operates in the intestines for a long time, and it does make the patient feel uncomfortable when the colonoscope is moving forward or turning. In addition, the examination will be filled with gas, once the examination time is prolonged, the patient's discomfort of abdominal distension will be more pronounced, generally more experienced physicians will do while pumping, so that the patient can feel a little more comfortable. Some people are afraid of pain, and will choose to add anesthesia painless colonoscopy, but whether or not there is anesthesia, the same can be in the colonoscopy to remove polyps.
Removing a polyp during a colonoscopy can lengthen the examination time, and the time required varies depending on the size and location of the polyp. Some polyps are located in the curvature of the liver or spleen, and the location of the curvature will take longer to process, as will flat polyps or a larger number of polyps.
In the past, larger or flat polyps could not be removed by colonoscopy, and even required open surgery or laparoscopic surgery, with the patient undergoing general anesthesia and hospitalization. However, with the endoscopic colonoscopy procedure now being used, the wound will be treated with a hemostatic clip after resection to minimize bleeding and wound rupture, and hospitalization will not be required.
After colonoscopy and removal of the polyp, there is still gas in the bowel, so it is important to walk around a bit after the removal to help ventilate the bowel. Although the hemostasis will be given after the resection, there is still a risk of bleeding if too much force is exerted, so it is not advisable to do strenuous exercise. In addition, if you are taking anticoagulants, it is recommended that you stop taking them first. Because of the wounds in the intestines, you should avoid eating raw food for a few days after the surgery to avoid infection.
Polyps can grow again if you don't change your diet
Some patients think that they have already had a polyp removed the last time a polyp was detected, so why is it that they have a polyp again? The reason for this is the fact that the majority of the people in the world are not aware of what is going on in their lives, but they are aware of what is going on in their lives, and they are not aware of what is going on in their lives. However, Chen Guan-yang pointed out that the chance of reappearing polyps in the same area is actually not high, only that there is still a possibility of polyps appearing in other parts of the body. A study has shown that more than 20% of patients still find new polyps after polyp removal.
Although there are still a few colorectal cancer patients who do not pass through the polyp barrier, but rather direct lesions in the mucosa, up to 90% of colorectal cancers are transferred from polyps, which can be considered as precancerous lesions of colorectal cancer, and as long as they can be dealt with as soon as they are detected, they can be prevented from evolving into colorectal cancer.
Polyp prevention starts with regular checkups
A team of researchers from the German Cancer Research Center and the University of Heidelberg tracked more than 400 patients with colorectal polyps over a 10-year period, and found that about one-third of the patients went on to develop colorectal cancer. The results of the study showed that those who did not undergo colonoscopy within five years after the discovery of colorectal polyps or those who did not have their colorectal polyps removed were more likely to develop colorectal cancer. The study found that those who did not undergo colonoscopy within 5 years were 3 times more likely to develop cancer than those who underwent regular follow-up, while those who did not have their colon polyps removed were 5 times more likely to develop cancer than those who had their polyps removed.
Chen Guan-yang pointed out that it takes about 5 to 10 years for a polyp to turn into a malignant tumor, and because polyps can be seen as a pre-cancerous manifestation, in the United States, due to the limitations of the medical environment, it is recommended that if a polyp is not detected during an examination, it can be examined again after 10 years. However, in Taiwan, where the healthcare environment is more friendly, it is generally recommended to shorten the period to 5 years. After all, there are folds and creases in the large intestine where some small polyps may not be easily seen, or if the patient does not have a clean bowel movement beforehand, the fecal matter left in the intestines may also cover up some small polyps, or flat polyps, which may cause a dead spot in the examination.
If a large polyp is found and it is a villous adenoma, it is recommended that it be examined once a year for the first 2 or 3 years after resection, and if no polyp is found for 2 or 3 years, then the frequency of examination can be extended to once every 3 years. If the polyp is less than 1 centimeter and is a benign striated adenoma, it may be examined again in 2 to 3 years. If no polyps are found, the test can be repeated in 5 to 10 years.
Family history suggests earlier screening
Since polyps and colorectal cancer have a tendency to run in families, those with a family history should be screened earlier. It is generally recommended that screening for colorectal cancer begin at age 50, and those with a family history may have to be screened earlier. The screening age is 10 years earlier than the youngest age at which a person with a family history of the disease was diagnosed. For example, if your mother was diagnosed with colorectal cancer at age 60, and your brother was diagnosed with colorectal cancer at age 55, it is recommended that your family members receive colonoscopies at age 45 to confirm the presence of polyps.
Chen Guan-yang emphasized that the reason for the 10-year advancement is that it takes about 510
366
to develop polyps into cancer.