Treatment of Coronary In-Stent Restenosis With Bioabsorbable Vascular Scaffolds

Association of G22A variant of Adenosine Deaminase gene with coronary in-stent restenosis in coronary artery patients receiving drug-eluting stent

In-stent restenosis (ISR) is regarded as the main problem in the utilization of stents in the treatment of coronary artery atherosclerotic stenosis in percutaneous coronary intervention (PCI). This study investigated the possible role of the G22A variant of the Adenosine Deaminase gene (ADA) in the development of ISR. In this study, 91 patients who underwent PCI were divided into two groups of ...

Treatment of in-stent restenosis with excimer laser coronary angioplasty.

Diffuse in-stent restenosis remains an important problem in percutaneous transluminal coronary angioplasty (PTCA). In this trial, we studied the early and mid-term outcomes of excimer laser coronary angioplasty (ELCA) on diffuse in-stent restenosis. ELCA was performed in 23 patients (19 males). The mean length of the lesions was 14.3 +/- 3 mm and the mean age was 58 +/- 7 years. The minimal lum...

Coronary stent symmetry and vascular injury determine experimental restenosis.

OBJECTIVE To assess the impact of stent symmetry on restenosis using the coronary overstretch sheep model. METHODS Neointimal thickness, injury index, and percentage diameter and area stenosis were calculated by digital morphometry. The standard deviation of the angular burden was used to assess stent symmetry for each section. MATERIALS 15 healthy Merino sheep (63-75 kg) underwent implanta...

A Spontaneous Coronary Dissection Successfully Treated With Bioabsorbable Scaffolds.

A 36-year-old female patient with no relevant medical history was admitted for non-ST segment elevation infarction. The emergency coronary angiography showed long, subocclusive disease of the proximal-medial segment of the right coronary artery, affecting the distal flow (TIMI 2) (Figure 1). The angiographic image showed atherosclerosis, but the intravascular echocardiography identified a large...

In stent restenosis after percutaneous coronary intervention