Search results for "restenosi"
showing 10 items of 76 documents
Predictors of carotid artery in-stent restenosis
2012
SummaryBackgroundCarotid angioplasty and stenting (CAS) is increasingly being used as a treatment alternative to endarterectomy (CEA), especially in patients aged <70 years with significant carotid artery stenosis. However, an in-stent restenosis (ISR) might endangering the long-term efficacy of CAS. The aim of this article was to review the current literature regarding incidence and clinical significance as well as predictors of in-stent restenosis.MethodsWe conducted a systematic review of the literature to identify all studies on the abovementioned factors.Results3 randomized-controlled trials comparing CAS and CEA and 13 single centre studies fulfilled our inclusion criteria. The occurr…
P1699Non-ST segment elevation miocardial infarction (NSTEMI) vs. Unstable angina (UA) in young women aged < 45 years - differences in symptomatolo…
2019
Abstract Background Almost 50% of all ACS in young women are NSTEMI and UA. Due to the type of ACS we observed differences in the symptomatology, treatment and outcomes. The aim was to evaluate the differences in the clinical course and prognosis in young women aged ≤45 years with NSTEMI vs. UA. Methods We compared 1143 women aged ≤45y.o. with acute cardiac syndromes: 51% NSTEMI, 49% UA from the PL-ACS registry between 2007 - 2014. Results Chest pain was predominant in both group, with a higher incidence in NSTEMI group (91.7% vs. 84.7, p=0.0002). UA group was older (42y.o. vs. 41y.o p=0.003), more often presents atypical symptoms (8.0% vs. 1.5%, p<0,0001) mostly with dyspnea (3.9%vs. 1.…
In-Stent Restenosis: Definition, Entity of the Problem, Etiopathogenesis and Treatment Options
2018
In-stent restenosis (ISR) still represents a frequent limitation of percutaneous coronary intervention despite the introduction of latest-generation drug-eluting stents (DES), drastically lowering the overall incidence of ISR. Thus, the treatment of DES ISR remains a real brainteaser for interventional cardiologists.
Kardio-MRT
2004
Since initial reports in the early 1990s cardiac magnetic resonance imaging (CMR) has matured and is likely to become an established method for routine cardiac diagnostics. The development of faster gradient-echo sequences and stronger magnetic fields has led to improved temporal and spatial resolution. Myocardial viability can be examined by morphological and functional analysis. Contrast enhanced MRI (ceMRI), perfusion measurements and regional wall motion analysis are the major diagnostic tools. The ability to image in arbitrary double oblique planes provides comprehensive visualization of the heart. The introduction of the MR navigator technique allowed for free-breathing motion correct…
Drug eluting and bare metal stents in people with and without diabetes: Collaborative network meta-analysis
2008
Objective To compare the effectiveness and safety of three types of stents (sirolimus eluting, paclitaxel eluting, and bare metal) in people with and without diabetes mellitus. Design Collaborative network meta-analysis. Data sources Electronic databases (Medline, Embase, the Cochrane Central Register of Controlled Trials), relevant websites, reference lists, conference abstracts, reviews, book chapters, and proceedings of advisory panels for the US Food and Drug Administration. Manufacturers and trialists provided additional data. Review methods Network meta-analysis with a mixed treatment comparison method to combine direct within trial comparisons between stents with indirect evidence fr…
Resistance of the internal mammary artery to restenosis: a histomorphologic study of various porcine arteries.
2007
<i>Background/Aims:</i> Restenosis after percutaneous transluminal angioplasty (PTA) of the internal mammary artery (IMA) grafts is much less pronounced than in other arteries and venous grafts. The aim of the study was to test whether various arteries respond differently to dilatation. <i>Methods:</i> PTA of the IMA, carotid, renal and circumflex coronary (RCx) arteries was performed in 9 pigs (balloon to artery ratio of 1:1.5). After 8 weeks, angiography was repeated and vessels prepared for histological analysis. Immunohistochemical staining was done to examine proliferative activity (Ki67) and to identify the vasa vasorum of the adventitia (F VIII-RA). <i>R…
Substantial Reduction of Platelet Adhesion by Heparin-Coated Stents
2001
Although optimized antiplatelet medication has improved the clinical outcome after coronary stenting, vessel occlusion and restenosis still remain a relevant clinical problem. Platelets play a key role in this process. Therefore, the authors compared the platelet adhesion on different stent surface modifications (electropolished without coating or coated with carbon, carbon and additional heparin, silicon carbide, or heparin alone) to investigate their role in reducing platelet adhesion. All stents and additional stainless steel plates were incubated in heparinized whole blood with radiolabeled platelets. After washing the stents and plates four times, radioactivity caused by the adhesion o…
Factors Correlating with Restenosis after PTCA
1991
Since its introduction in 1977 [7, 8], PTCA has been widely used in patients with coronary artery disease. Restenosis with recurrence of angina remains the major problem, limiting the long-term success after PTCA. Reported restenosis rates vary from 17% to 47% [9–19, 22–26]. In larger series [12, 15, 26] a restenosis rate of about 30% was constantly found, irrespective of the definition of restenosis in use.
Epiphora Secondary to Blockage of the Lacrimal System: The Role of Endonasal Dacryocystorhinostomy
1994
Stenosis of the lacrimal system may occur secondary to tumor, infection, trauma, and congenital etiologies. Attempts to remedy this problem often include irrigation and probing. However, if these fail, external or internal dacryocystorhinostomy (DCR) with or without stenting may be performed. The purpose of this article is to detail our experience with a microscopic endonasal approach to DCR utilized in 23 patients. This is a modification of an older accepted procedure which utilizes the modern techniques of endonasal sinus surgery. This approach has allowed for immediate restoration of drainage in 22 of 23 cases. In one case, the procedure was repeated because of restenosis at the level o…
Effects of Ciprostene on Restenosis Rate during Therapeutic Transluminal Coronary Angioplasty
1992
Ciprostene, a chemically stable prostacyclin analog was studied for its effects on restenosis in patients with coronary artery disease undergoing therapeutic percutaneous transluminal coronary angioplasty (PTCA). In a double-blind, randomized trial 32 patients were randomized to receive either ciprostene or the respective placebo. The infusion started intracoronarily at a rate of 40 ng/kg/min 20 min before introduction of the balloon catheter into the coronary artery. Thereafter infusion was continued intravenously for 36 hours at a rate of 120 ng/kg/min and a tapering off period until 48 hours. The quantitative analyses of the degree of coronary artery stenoses on the angiographic films be…