the invention of the drug-eluting stent (des) has brought about revolutionary changes in the field of interventional cardiology. in the des era, in-stent restenosis has declined but new issues such as stent thrombosis have emerged. one of the emerging paradigms in the des era is stent fracture. there are reports about stent fracture leading to in-stent restenosis or stent thrombosis. most of th...

background: in order to improve the evaluation of possible rectal toxicity based on the rectal normal tissue complication probability (ntcp), we consider the fractional dependence of the ntcp on the wall thickness (tw) and rectal displacement (rm). materials and methods: the two-dimensional ntcp model (ntcp2d) was developed using radiotherapy plans of ten randomly selected patients with prostat...

Introduction: This study aimed to evaluate the effects of four-time inflation of the stent balloon at nominal pressure on optimal stent expansion in resistant lesions. Materials and Methods: This interventional study was conducted on 39 patients with coronary artery lesions, in whom Zotarolimus-eluting stents (N=20), Paclitaxel-eluting stents (N=11) and other stents (N=8) were deployed four tim...

Ureteral-iliac artery fistula is a rare and potentially life-threatening complication, typically occurring after radiation therapy in already surgically treated cancer patients. This case report describes the diagnostic challenges and the successful management, with the positioning of an intra-arterial prosthesis, of a fistula between the internal iliac artery and the left ureter presenting as ...

background: the biolimus-eluting stent (bes), with a biodegradable polymer, has not been previously compared with the everolimus-eluting stent (ees), as a second-generation drug-eluting stent (des).we sought to compare the 1-year outcome between the promus ™ stent (ees type) and the biomatrix ™ stent (bes type). methods: from march 2008 to september 2011, all patients treated with the promus™ s...

A 44-year-old woman with a large symptomatic uterine leiomyoma underwent radical pelvic mass resection, bilateral salpingo-oophorectomy, and modified pelvic exenteration with rectosigmoid resection and creation of a diverting ileostomy. A sigmoidoscopy performed 2 months later followed by a water-soluble contrast enema showed complete obstruction of the rectosigmoid anastomosis. An endoscopic u...

background the transjugular intrahepatic portosystemic stent-shunt (tipss) builds a shortcut between the portal vein and a liver vein, and represents a sophisticated alternative to open surgery in the management of portal hypertension or its complications. objectives to describe clinical experiences with a low-profile nitinol stent system in tipss creation, and to assess primary and long-term s...