Acute coronary syndrome due to complete bare metal stent fracture in the right coronary artery

Stent fracture and restenosis after zotarolimus-eluting stent implantation

“…Furthermore, SES have a closed cell design in contrast to the open cell design of PES, which renders the former less deformable in response to dynamic loading imposed by cardiac movement. In one series, the incidence of SF was 1.7-2.4% following SES implantation [8,9]; however, SF has also been reported after bare-metal stent and paclitaxel-eluting stent implantation although it's extremely rare [7,10]. To our knowledge, this is the first report of SF after ZES implantation.…”

Mechanisms and Patterns of Intravascular Ultrasound In-Stent Restenosis Among Bare Metal Stents and First- and Second-Generation Drug-Eluting Stents

“…NIH was the main mechanism of both BMS ISR and DES ISR; Although there have some case reports of BMS strut fracture, it is decidedly uncommon. 22,23 Conversely, there are more reports of DES strut fractures impacting restenosis. Okumura et al 24 Predictors of ISR were treatment of ISR, ostial location, diabetes, stent length (per 10-mm increase; OR 1.42, 95% CI 1.21 to 1.68; p<0.01), reference diameter, and left anterior descending coronary artery.…”

Coronary drug‐eluting stents: From design optimization to newer strategies

“…Stent fracture reduces the metal scaffolding support at the specific site and negatively influences local drug delivery . The serious procedural complications associated with stent fracture include vessel injury, restenosis, and acute vascular syndrome . Available evidence suggests that different DES platforms do not have the same incidence of stent fracture, ranging from 1–8% .…”