Related Experiment Video
Updated: May 7, 2026

Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents
Published on: October 26, 2016
Successful treatment of spontaneous coronary bypass rupture using a polytetrafluoroethylene-covered stent
Katsuro Kashima1, Goichi Yotsumoto, Ryuichi Miyajima
1Department of Cardiology, National Hospital Organization, Kagoshima Medical Center, 8-1 Shiroyama-cho, Kagoshima, 892-0853, Japan, k-kashima@kagomc2.hosp.go.jp.
Abstract:
A 57-year-old man with coronary bypass surgery experienced spontaneous rupture of a vein graft 16 months following his operation. Multislice computed tomography revealed a perforation of the saphenous vein graft to the obtuse marginal branch. 3D imaging was useful for diagnosis and in planning treatment. Hesitation to perform surgical treatment occurred due to inflammation in the patient, therefore we successfully implanted a polytetrafluoroethylene-covered stent to occlude the site of perforation. The use of a covered stent for a patient showing clear leakage of dye during angiography should be considered as an alternative to surgical intervention for a ruptured vein.

