Yang Li^1,#, Runxin Fang^2,#, Renyun Wang¹, Qiming Dai¹, Zhiyong Li^2,*, Genshan Ma¹

Molecular & Cellular Biomechanics, Vol.18, No.3, pp. 119-122, 2021, DOI:10.32604/mcb.2021.017503

Abstract Longitudinal stent foreshortening is a known phenomenon, however, the impact of coronary artery curvature on longitudinal stent foreshortening remains unclear. The aim of this study is to determine the impact of coronary artery curvature on the longitudinal stent foreshortening in the real-world scenarios. A total of 86 consecutive patients underwent coronary stent implantation were included in the present study. The degree of coronary artery curvature was defined as the length of the coronary artery curvature divided by the straight length. Longitudinal stent foreshortening was defined as the stent length after implantation divided by the stent length before implantation. The mean… More >

Domenico Sirico¹, Biagio Castaldi^1,*, Giuseppe Tarantini², Giovanni Di Salvo¹

Congenital Heart Disease, Vol.15, No.6, pp. 441-445, 2020, DOI:10.32604/CHD.2020.012863

Abstract Asymptomatic coronary artery obstruction represents a significant diagnostic challenge in patients with Dextro-Transposition of the Great Arteries and history of Arterial Switch Operation. We report the case of a 17-year-old boy with anomalous origin of left circumflex artery from the right coronary artery, who underwent neonatal arterial switch operation and developed silent myocardial ischemia under stress on myocardial scintigraphy. Despite coronary angiogram and intravascular ultrasound showed only intermediate stenosis of the right coronary artery ostium, the physiological analysis, through the employment of pressure wire, demonstrated a severe reduction of coronary fractional flow reserve after pharmacologically induced hyperemia. Thus, the patient… More >