[Arterioembolization with shape memory angioembolus. Experimental study and clinical application].
The results of experimental study and clinical application of arterio-embolization induced by the conical spiral or rugby spiral type of shape memory angioembolus(Nitinol-Conical Rugby Embolus, NT-CRE) were reported. The NT-CRE has a spring coil as its base line and is formed like a conical spiral or rugby spiral which has a two-way memory effect. Through a period of 1-48 weeks observation on 74 angiographic and histological specimens of 39 target arteries from 20 experimental dogs showed that the NT-CRE has good histocompatibility and is effective for embolization in large-bored arteries. Clinical application on target arteries of 7 patients showed successful occlusion of blood flow in 5-18 minutes in arteries with internal diameters of 3.33-5.83 mm. The NT-CRE being of the two-way memory effect and its configuration of relatively close state render its catheterization and release into target vessel simple, save, rapid and effective. In the researches we have not found any complication of hemorrhage from ruptured blood vessels and misembolization from regurgitation.
Zhang
C C
CC
Changhai Hospital, Second Military Medical University.
D000328:Adult; D000368:Aged; D000497:Alloys / Q000627:therapeutic use; D000818:Animals; D001845:Bone Cysts / Q000628:therapy; D004285:Dogs; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D007083:Iliac Artery; D007680:Kidney Neoplasms / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D012077:Renal Artery
D000497:Alloys