Abstract Background: Coronary collateral circulation (CCC) can effectively improve myocardial blood supply to the area of CTO (chronic total coronary occlusion) and can, thus, improve the prognosis of patients with stable coronary syndrome (SCS). The degree of inflammation and some inflammation markers were associated with the development of collaterals. Objective: To investigate whether prognostic nutritional index (PNI) has an association with the development of CCC in patients with SCS. Methods: A total of 400 SCS patients with the presence of […]

Abstract Background Inflammation plays a key role in the initiation and progression of coronary artery disease (CAD). The systemic immune-inflammation index (SII) is a novel inflammatory parameter that has been shown to be associated with CAD. Objective This study aimed to investigate the relationship between SII and coronary collateral circulation (CCC) in patients with stable CAD and chronic total occlusion (CTO). Methods The patients were divided into two groups, with poor CCC and good CCC, according to the Rentrop Classification. […]

Clinical data The patient had no symptoms from birth to young adulthood, when he developed more severe hypoxia, which required a Blalock-Taussig anastomosis on the right. Five years ago, worsening of hypoxia was again observed, with hemapheresis every 6 months, in addition to fatigue on small to medium exertion and with associated ventricular dysfunction. He used f warfarin, carvedilol and enalapril, in addition to nasal oxygen at night. […]

Background: According to common belief, most myocardial infarctions (MIs) are due to the rupture of nonsevere, vulnerable plaques with < 70% obstruction. Data from recent trials challenge this belief, suggesting that the risk of coronary occlusion is, in fact, much higher after severe stenosis. The aim of this study was to investigate whether or not acute ST-elevation MIs result from high-grade stenoses by evaluating the presence of coronary collateral circulation (CCC). Methods: We retrospectively included 207 consecutive patients who had […]