Characteristics and differences between Ar-He knife and radiofrequency ablation for tumor treatment, which one is effective?

Compared with radiofrequency ablation, Israel argon helium knife cryotherapy tumor has the following advantages: A. Argon helium knife cryoablation therapy itself has the role of pain relief, and can be treated under local anesthesia, not subject to anesthesia conditions, reducing the risk of patient surgery. Radiofrequency ablation is thermal therapy, local anesthesia is very painful, can not complete the operation, generally need hard anesthesia or general anesthesia, there are restrictions on anesthesia conditions. At the same time, anesthesiologists go to the ultrasound room and CT room to do anesthesia for patients, and they need to carry monitors and anesthesia machines, which on the one hand increase the workload of doctors, and at the same time increase the risk of patients, and at the same time increase the medical cost.B. Radiofrequency ablation treatment can only monitor the process of puncture under the image, and since the thermal therapy will make the therapeutic area produce vaporization effect, the image of the therapeutic area and the nontherapeutic area during the operation can not be judged, and therefore the therapeutic process Therefore, it is not possible to monitor the treatment process and the treatment effect. Cryotherapy, on the other hand, not only monitors the puncture process, but also monitors the frozen area during the operation and determines the efficacy of the treatment after the operation. Cryotherapy has a temperature monitoring system, which can monitor the temperature of the treatment process in real time. c. Radiofrequency belongs to thermal therapy, which is easy to damage large blood vessels. Therefore, radiofrequency ablation cannot treat lung cancer close to large blood vessels of the heart. In addition, due to the hot pool effect of blood vessels (i.e., the blood flowing in the large blood vessels can take away the cold temperature, so it is not easy to form ice balls around the large blood vessels), cryotherapy will not damage the large blood vessels. There are many doctors who have done animal experiments and inserted cryoprobes directly into the blood vessels larger than 4mm to freeze around the blood vessels and found that the blood vessels were not damaged. It shows that cryotherapy is safe to treat tumors around large blood vessels.D. Although radiofrequency ablation has a large treatment area with a single needle, it cannot be applied in combination with multiple needles at the same time, therefore, the treatment area is small. While cryotherapy can be combined with multiple needles, up to 25 needles can be applied at the same time, resulting in a larger treatment area, shorter treatment time and higher treatment efficiency.E. The argon helium knife probe is smaller than that of radiofrequency, resulting in fewer complications and greater safety. The illustration shows the argon helium knife cryoablation treatment of tracheal tumor. Prof. Qu Lixin performs argon helium knife tracheal tumor ablation under fiberscope guidance.