Radiofrequency ablation is a relatively effective treatment for liver cancer, but more methods need to be considered to cure the disease. If liver cancer is not improved reasonably, it will easily cause more serious problems. This is what needs to be considered most clearly. What is radiofrequency ablation for liver cancer: Radiofrequency ablation for liver cancer is a method of thermal therapy. Its principle is to puncture a high-frequency radio frequency transmitter into the center of the tumor, and then pass high-frequency current. At the tip of this instrument, a thermal effect can be generated, and the temperature can reach more than 100 degrees. Tumor cells are killed by high temperature. In general, tumors within two centimeters are selected as much as possible for the best effect. Tumors within five centimeters can also be selected, but several punctures are required because its radio frequency shape is an ellipsoid. After overlapping several needles, it is accumulated into the last five-centimeter injury area. Radiofrequency ablation of the liver is to insert the ablation needle into the liver tumor through the skin. The operation is mostly performed using intravenous anesthesia, and the patient does not feel pain during the operation. If local anesthesia is used, the patient will feel pain. Painkillers are often used during surgery, and patients can tolerate pain. After surgery, patients often feel pain in the liver area, which can last for about a week. This is due to the pain caused by inflammatory edema and necrosis of liver tissue after treatment. The degree of pain is related to the location and range of the tumor. The closer the tumor is to the liver surface, the more severe the pain. Pain is related to the patient's tolerance. If patients who are not sensitive to pain can tolerate pain, patients who are sensitive to pain may not be able to tolerate it. Painkillers can be used for treatment. Microwave ablation is an active ablation, while radiofrequency ablation is a passive ablation. Microwaves in vivo do not traditionally rely on the conductivity of tissues, and the impact is relatively small. Therefore, microwave ablation has a larger ablation range, and the temperature in the tumor is also relatively high. The ablation time is shorter, and the tumor is more completely inactivated. Compared with radiofrequency ablation, microwave ablation has a smaller effect caused by blood perfusion. For tumor target areas close to blood vessels, it can also be inactivated more evenly. Multiple microwave energy sources can be used simultaneously, and there will be no mutual interference during radiofrequency ablation. Therefore, a larger ablation range can be achieved in a short time. |
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