Radiofrequency needle indication

Radiofrequency ablation is a new technique widely accepted by both doctors and patients. At present, the technology of radiofrequency ablation has been quite mature, and the indications have developed from the original simple paroxysmal supraventricular tachycardia (mainly atrioventricular bypass, atrioventricular nodal double path) to idiopathic ventricular tachycardia, frequent premature ventricular beats, atrial flutter, atrial tachycardia, atrial fibrillation, etc. For common paroxysmal supraventricular tachycardia, the success rate of radiofrequency ablation can reach more than 95%, and the postoperative recurrence rate is 1-3%.
Solid tumor
Percutaneous radiofrequency ablation of tumors is guided by imaging (CT, B ultrasonography, etc.), which uses radiofrequency thermal effect to cause coagulation necrosis of tissues to achieve the purpose of tumor resection. It has become a new hotspot in many palliative therapies. The main principle of this technology is that the warhead sends out medium-high frequency radio-frequency waves (460k Hz), which can stimulate tissue cells to carry out plasma shock, and the ions collide with each other to generate heat up to 80-100℃, which can effectively and quickly kill local tumor cells, and at the same time make the vascular tissue around the tumor coagulated and coagulated to form a reaction zone. So that it can not continue to supply blood to the tumor and help prevent tumor metastasis. [2]
The whole treatment process is controlled by the computer under the surveillance of the TV screen. The radio-frequency wave emitted by the cluster electrode can make the tissue coagulation and necrosis range (inactivated tumor area) up to 5cm×5cm×5cm. It is the most advanced "guided treatment method" and minimally invasive tumor resection treatment method, which can kill more tumors and damage the body less.