Interventional therapy refers to the use of percutaneous puncture and catheterization under the guidance of medical imaging or endoscopy to eliminate or alleviate localized lesions directly by means of medication, physics, and chemistry to achieve therapeutic goals.
Interventional therapy has the characteristics of minimally invasive, plasticity, accurate positioning, etc. For some diseases, its efficacy is better than the traditional medical and surgical treatment.
The main therapeutic techniques are:
1 vascular interventional techniques such as:
1) transcatheter angioembolization;
2) transcatheter local drug infusion;
3) transcatheter endoluminal angioplasty;
4) percutaneous endovascular stenting;
5) transjugular intrahepatic portacaval shunt;
6 percutaneous vascular foreign body and thrombus removal;
7 percutaneous intravascular catheter cartridge system implantation;
8 cardiac valvuloplasty;
9 radiofrequency ablation;
10 selective angiography and pharmacological angiography techniques.
2 non-vascular interventional techniques such as:
①percutaneous needle aspiration biopsy;
②percutaneous percutaneous puncture internal and external drainage;
③percutaneous intervertebral disc excision;
④tubal recanalization;
⑤peritoneal fluid-vein diversion;
⑥peritoneal or venous diversion for hydrocephalus;
7 internal stenting;
8 percutaneous gastrostomy;
9 stone treatment techniques;
10 "T-tube replacement, etc..
3Endoscopic interventional techniques such as:
①Transgastroscopic esophageal varices phlebotomy;
②Transgastroscopic esophageal cancer stenting;
③Transnasaloscopy-assisted resection of skull-base tumors;
④Transpercutaneous nephroscopic lithotripsy;
⑤Transmicroendoscopic lumbar intervertebral disc prolapse treatment, and so on.