Objectives: To evaluate the angiographic and intravascular ultrasound (IVUS) characteristics of coronary mismatch lesions.
Background: Better understanding about the characteristics of mismatch lesions may help to achieve more accurate lesion assessment and, thereby, to improve the outcomes of percutaneous coronary intervention (PCI).
Methods: Angiographic and IVUS data from 1369 lesions were analyzed.
Even cardiac surgery has been accepted as the standard therapy for Lutembacher syndrome, a combination of congenital ostium secundum atrial septal defect (ASD) and acquired mitral valve stenosis (MVS), it also owns many limitations and disadvantages. Therefore, seeking for a less invasive therapy with the same efficacy may be worthwhile. Thanks to the development in technology and experience gaining in cardiovascular intervention, the combination of the two proved effective procedures, including percutaneous MVS treatment using balloon valvuloplasty and percutaneous ASD closure using atrial septal occluders, can be utilized as an attractive alternative therapy for these conditions.
View Article and Find Full Text PDFObjectives: To assess the safety and efficacy of percutaneous closure of perimembranous ventricular septal defect (PmVSD) using patent ductus arteriosus (PDA) occluders.
Background: Widespread use of conventional PmVSD closure devices has been limited by unacceptable high rate of complete heart block (CHB). The elegant design of PDA occluders is supposed to ease implantation, increase closure rate and minimize damage to adjacent structures.
We assessed the plaque disruption in 245 consecutive patients with acute coronary syndrome undergoing percutaneous coronary intervention. The plaque fissure was diagnosed with optical coherence tomography, and intravascular ultrasound was used to determine arterial remodeling. Of them, 26 fissures were found in this study.
View Article and Find Full Text PDFBackground: Although the safety and efficacy of left atrial (LA) appendage (LAA) closure (LAAC) in nonvalvular atrial fibrillation (NVAF) patients have been well documented in randomized controlled trials and real-world experience, there are limited data in the literature about the impact of LAAC on cardiac remodeling. The aim of the study was to examine the impact of LAAC on cardiac functional and structural remodeling in NVAF patients.
Methods: Between March 2014 and November 2016, 47 NVAF patients who underwent LAAC were included in this study (LAAC group).
Solving combinatorial optimization problems is challenging. Mapping onto the ground-state search problem of the Ising Hamiltonian is a promising approach in this field, where the components of the optimization set are modeled as artificial spin units. The search for a suitable physical system to realize these spin units is an active area of research.
View Article and Find Full Text PDF