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001), lesions with calcification had more residual stenosis (2.05 ± 9.36% vs. 3.11 ± 9.36% vs. 3.89 ± 9.39%, P  less then  0.001). Consequently, procedural success was achieved in 97.7 vs. 96.2 vs. 93.6% of cases in none, mild, and moderate-to-severe calcification (P  less then  0.001). At 24 months, cardiac death (0.3 vs. 0.7 vs. 1.6%, P = 0.009) was higher with increasing calcification. However, no significant between-group difference was observed in the incidence of target vessel MI, target vessel revascularization, or target lesion failure. The rate of probable scaffold thrombosis was significantly higher with increasing calcification. CONCLUSION In GABI-R, ABSORB scaffolds in calcified lesions required more postdilation, led to more residual stenosis, but did not portend increased target lesion revascularization over 2 years. Nevertheless, coronary calcification severity emerged as a cardiovascular risk marker and was predictive of cardiovascular mortality. Clinicaltrial.gov NCT02066623.BACKGROUND The objective of this study was to evaluate the hemodynamic characteristics of multiple sequential coronary artery bypass grafting using a computational fluid dynamics study. METHODS First anastomosis was configured into parallel and diamond anastomoses, and the second anastomosis was set as end-side anastomosis. The anastomosis incision lengths were fixed at 2 mm. Various combinations of the degree of first and second stenoses were studied. The diameter of both the native and graft vessels was set at 2 mm. The inlet boundary condition was set by a sample of the transient time flow measurement, which was measured intraoperatively. RESULTS Both swirl and stagnation were observed at the outlets of the stenosis and the anastomosis sites. When the severity of the second stenosis was larger than that of the first, the flow at the outlet of the second stenosis was more unstable. Higher wall shear stress and larger oscillatory shear index regions were observed when the severe stenosis was bypassed by the first anastomosis, especially with diamond anastomoses. Less energy loss and higher energy efficiency were present when the vessel with more severe stenosis was bypassed as the second anastomosis. Energy loss was lower and energy efficiency was higher with parallel anastomosis than diamond anastomosis when the severity of the two stenoses was the same. CONCLUSIONS It is ideal to bypass the less severe stenosis vessel first with a parallel anastomosis method when employing multiple sequential bypass grafting. This improves hemodynamic stability and energy efficiency, according to a computational fluid dynamics model.BACKGROUND The optimal revascularization strategy is not clearly defined for patients with ST-elevation myocardial infarction with multivessel disease (MV-STEMI). We aimed to develop a simple angiographic risk score for identifying patients with MV-STEMI that might benefit from a multivessel percutaneous coronary intervention (MV-PCI), compared to a PCI for only the infarct-related artery (IRA-PCI). METHODS AND RESULTS This retrospective study acquired data from a single-center STEMI registry on 841 consecutive patients with MV-STEMI (645 IRA-PCI and 196 MV-PCI). Patients were stratified according to high- and low-risk scores. We devised a score based on three characteristics of non-culprit lesions previously reported to predict overall mortality (proximal left anterior descending artery involvement, maximal % stenosis, and number of involved vessels). selleck compound The primary endpoint was major adverse cardiac events (MACEs a composite of death/MI/urgent repeat revascularization). After a median follow-up of 1909 days, MACE occurred in 205/841 (24.4%) patients. MACE risk was higher in the high-risk than in the low-risk group (HR 1.43, P less then 0.001). In comparing the IRA-PCI and MV-PCI approaches within each risk group, we found that these revascularization strategies had differential effects on outcome. Compared to the MV-PCI, IRA-PCI was associated with less MACE in the low-risk group (HR 0.597, P = 0.033), and more MACE in the high-risk group (HR 3.14, P less then 0.001). CONCLUSION For patients with MV-STEMI that undergo primary PCI, a simple risk score based on three angiographic characteristics could identify patients at high risk of future adverse events. This score might facilitate choosing the optimal revascularization strategy.Analgesics, particularly opioids, have been routinely used in the emergency treatment of ischemic chest pain for a long time. In the past two decades; however, several studies have raised the possibility of the harmful effects of opioid administration. In 2014, the American Heart Association (AHA)/American College of Cardiology Foundation (ACCF) changed the guidelines regarding the use of opioids from class IC to class IIb for non-ST elevation acute coronary syndrome. And in 2015, the European Society of Cardiology (ESC) guidelines incidentally noted the side effects of opioids. In ST-segment elevation myocardial infarction, both ESC and AHA/ACCF still recommend the use of opioids. Given the need for adequate pain relief in ischemic chest pain in the emergency setting, it is necessary to understand the adverse effects of analgesia, while still providing sufficiently potent options for analgesia. The primary purpose of this review is to quantify the effects of analgesics commonly used in the prehospital and emergency department in patients with ischemic chest pain.BACKGROUND Drug-eluting stents with biodegradable polymers have been designed to improve safety and efficacy. However, drug-eluting stents with biodegradable polymers may not be a class effect, as stent strut thickness, polymer coating, and drug resorption differ between these groups of stents. Twelve months results of Scandinavian Organization for Randomized Trials With Clinical Outcome VII showed that ultrathin-strut sirolimus-eluting Orsiro stent was noninferior to the biolimus-eluting Nobori stent. The sirolimus-eluting Orsiro stent was associated with a reduced risk of definite stent thrombosis. METHODS The Scandinavian Organization for Randomized Trials With Clinical Outcome VII trial is a prospective multicenter randomized clinical trial comparing sirolimus-eluting Orsiro stent and biolimus-eluting Nobori stent in all-comers patients. The endpoint target lesion failure was a composite of cardiac death, myocardial infarction (not related to other than index lesion) and target lesion revascularization. RESULTS A total of 1261 patients were randomized to treatment with sirolimus-eluting Orsiro stent and 1264 patients to biolimus-eluting Nobori stent and followed for 3 years.

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