Search results for "artery disease"

showing 10 items of 652 documents

High Degree of Realism in Teaching Percutaneous Coronary Interventions by Combining a Virtual Reality Trainer With a Full Scale Patient Simulator

2008

The virtual reality coronary angiography simulator "CATHI" (Catheter Instruction System, Mannheim, Germany) simulates coronary arteries with implemented vessel lesions in virtual patients. Like similar systems the software model runs on common PC systems, which are linked to the mechanical device for manual training. We combined the advantages of this skill trainer with the near to reality assembly of a cardiac catheterization laboratory (Cath-lab) by connecting it to a full scale simulator (HPS, METI, Sarasota, FL). We present two methods of synchronizing the heartbeat between both simulation devices. Method A-the hardware solution-uses the electrocardiogram-synchronization signal of the H…

HeartbeatEpidemiologyTrainerHealth PersonnelCardiologyMedicine (miscellaneous)SynchronizingCoronary Artery DiseaseVirtual realityCoronary AngiographyEducationUser-Computer InterfaceSoftwareSynchronization (computer science)HumansMedicineComputer SimulationAngioplasty Balloon CoronarySimulationbusiness.industryTeachingPatient SimulationData exchangeModeling and SimulationEducation Medical ContinuingCommunications protocolbusinessSoftwareSimulation in Healthcare: The Journal of the Society for Simulation in Healthcare
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Prevalence, risk factor burden, and severity of coronary artery disease in patients with heterozygous familial hypercholesterolemia hospitalized for …

2019

Individuals with heterozygous familial hypercholesterolemia (FH) are at high risk of early myocardial infarction (MI). However, coronary artery disease (CAD) burden of FH remains not well described, especially for French patients.The objective of this study was to assess the prevalence of FH and severity of CAD from a large database of a French regional registry of acute MI.All consecutive patients hospitalized for an acute MI in a multicenter database from 2001 to 2017 were considered. FH was diagnosed using an algorithm adapted from the Dutch Lipid Clinic Network criteria. The prevalence and clinical features of FH and the severity of CAD were assessed.Among the 11,624 patients included i…

Heterozygotemedicine.medical_specialtyEndocrinology Diabetes and Metabolism[SDV]Life Sciences [q-bio]Myocardial InfarctionFamilial hypercholesterolemia030204 cardiovascular system & hematologySeverity of Illness IndexCohort StudiesHyperlipoproteinemia Type IICoronary artery disease03 medical and health sciences0302 clinical medicineRisk FactorsInternal medicinePrevalenceInternal MedicinemedicineHumansIn patientRegistries030212 general & internal medicineMyocardial infarctionRisk factorAcute miLipid clinicAgedAged 80 and overNutrition and Dieteticsbusiness.industryCholesterol LDLMiddle AgedEzetimibemedicine.disease3. Good healthLarge cohortHospitalizationFranceHydroxymethylglutaryl-CoA Reductase InhibitorsCardiology and Cardiovascular Medicinebusiness
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Non invasive imaging of coronary arteries with 64-slice CT and 1.5T MRI: challenging invasive techniques

2007

Non-invasive coronary artery imaging challenges any diagnostic modality, because of the complex and tortuous anatomy and cardiac contraction and respiration. Therefore, non-invasive coronary imaging requires high spatial and temporal resolution. Our purpose is to discuss the feasible applications in coronary imaging of Magnetic Resonance Imaging and Multi-slice Computed Tomography (MSCT). Focus will be devoted to potential indications and clinical impact of MSCT because of the fast development and the important results recently reported, in particular with the recent introduction of 64-slice equipments. MSCT of the coronary arteries is a promising imaging modality for the assessment of coro…

HumansCoronary atherosclerosis plaque coronary imaging Multislice CT 64-slice CT Magnetic ResonanceCoronary Artery DiseaseSettore MED/36 - Diagnostica Per Immagini E RadioterapiaTomography X-Ray ComputedMagnetic Resonance Imaging
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Evaluation of the Haemorheological Determinants in Coronary Heart Disease

1984

Increased blood viscosity has been described in patients with coronary artery disease (1, 2, 3, 4, 5, 6, 7, 8).

Increased blood viscosityCoronary artery diseasemedicine.medical_specialtybusiness.industryInternal medicineBlood viscosityCardiologyMedicineIn patientMyocardial infarctionbusinessmedicine.diseaseCoronary heart disease
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Cell immunity in Coronary Artery Disease (CAD)

2015

Numerous researches have detected immune cellular elements in coronary lesions of atherosclerotic origin in human and animal models, and these cells are suspected of contributing to plaque instability. Patients affected by acute coronary syndrome present high levels of pro-inflammatory molecules, as shown in numerous studies. This finding implies similarity between CAD and well-known immune-mediated inflammatory diseases. Due to incongruent findings, this “infection hypothesis” cannot be rejected, thus further research is needed to better understand the relationship between pathogen-induced chronic inflammatory response, with its pathogenic mechanisms, and the atherosclerotic process. Sever…

Inflammationmedicine.medical_specialtybusiness.industryImmunologyCADInflammationCell immunitymedicine.diseaseCoronary artery diseaseCell immunityInternal medicineCardiologyImmunology and AllergyMedicineLymphocytesmedicine.symptomCoronary Artery Disease (CAD)business
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The Role of the Coagulation System in Peripheral Arterial Disease: Interactions with the Arterial Wall and Its Vascular Microenvironment and Implicat…

2022

Peripheral artery disease (PAD) is a clinical manifestation of atherosclerotic disease with a large-scale impact on the economy and global health. Despite the role played by platelets in the process of atherogenesis being well recognized, evidence has been increasing on the contribution of the coagulation system to the atherosclerosis formation and PAD development, with important repercussions for the therapeutic approach. Histopathological analysis and some clinical studies conducted on atherosclerotic plaques testify to the existence of different types of plaques. Likely, the role of coagulation in each specific type of plaque can be an important determinant in the histopathological compo…

Inorganic Chemistryanticoagulation atherosclerosis coagulation peripheral artery diseaseOrganic ChemistryGeneral MedicinePhysical and Theoretical ChemistryMolecular BiologySpectroscopyCatalysisComputer Science ApplicationsInternational Journal of Molecular Sciences
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[Ischemia with no obstructive coronary artery disease: microvascular angina and vasospastic angina].

2020

About 40% of patients undergoing coronary angiography for chest pain with anginal features have angiographically normal or near-normal coronary arteries. It was necessary to standardize all myocardial ischemia scenarios in stable patients in the absence of coronary artery disease, therefore the term INOCA (ischemia with non-obstructive coronary artery disease) was coined. The aim of this article is to summarize and to clarify the vast and controversial chapter of INOCA, in order to better understand the pathophysiological, nosographic, diagnostic and therapeutic aspects.

Ischemia with non-obstructive coronary artery diseaseIschemiaCoronary microvascular dysfunctionCoronary VasospasmHumansCoronary Artery DiseaseCoronary AngiographyVasospastic anginaMicrovascular AnginaGiornale italiano di cardiologia (2006)
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Early and midterm outcomes of bioresorbable vascular scaffolds for ostial coronary lesions: insights from the GHOST-EU registry.

2016

Aims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subset, with higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long term, but their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA), left anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular death, target vessel m…

LCX (29Target lesionMale52%). Patients presenting with ostial lesions did not differ from the remaining cohort except for a higher incidence of prior revascularisation. Predilation was performed in 97% of the lesions (vs. 96% in non-ostialp= 0.035)medicine.medical_treatmentMyocardial Infarction304 patients with a mean age of 62 +/- 11years. There were 90 ostial lesions (5.8%) in 84 patients (6.4%) located at the ostial RCA (14Coronary Artery Disease030204 cardiovascular system & hematologyCoronary artery diseasebut their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA)0302 clinical medicineAbsorbable Implants030212 general & internal medicineMyocardial infarctionCircumflexRegistriesTissue Scaffolds32%)Drug-Eluting StentsMiddle AgedThrombosisCoronary VesselsAims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subset with higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long term but their safety in this setting remains to be explored. Methods and results: Procedural and 12-month follow-up data from consecutive patients treated with BVS for lesions located at the ostium of the right (RCA) left anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular death target vessel myocardial infarction or target lesion revascularisation. The database included a total of 1549 lesions in 1304 patients with a mean age of 62 +/- 11years. There were 90 ostial lesions (5.8%) in 84 patients (6.4%) located at the ostial RCA (14; 16%) LCX (29; 32%) or LAD (47; 52%). Patients presenting with ostial lesions did not differ from the remaining cohort except for a higher incidence of prior revascularisation. Predilation was performed in 97% of the lesions (vs. 96% in non-ostial p= 0.618) post-dilation in 43% (versus 58% in the non-ostial group p= 0.008). At quantitative coronary angiography treatment of ostial lesions was associated with higher residual stenosis (30% [23-41] vs. 26% [20-37] p= 0.035) but no difference in minimum lumen diameter existed (p= 0.447). Follow-up data were available at 385 [362-465] days. The 12-month Kaplan-Meier estimated rates of scaffold thrombosis were 4.9% and 2.0% (ostial and non-ostial lesion groups respectively log-rank p= 0.005). The device-oriented composite endpoint occurred respectively in 12.6% and 4.6% at 12 months (log-rank p= 0.001). Treatment of ostial lesions was an independent predictor of this endpoint (p= 0.0025 HR 2.65 [1.41-4.97]).OstiumAims: We aimed to investigate the outcomes of bioresorbable vascular scaffolds (BVS) in coronary ostial lesions. Ostial lesions represent a challenging angiographic subsetTreatment Outcomein 12.6% and 4.6% at 12 months (log-rank p= 0.001). Treatment of ostial lesions was an independent predictor of this endpoint (p= 0.0025CardiologyFemale549 lesions in 1medicine.symptomCardiology and Cardiovascular MedicineAdultpost-dilation in 43% (versus 58% in the non-ostial groupmedicine.medical_specialtyor LAD (47HR 2.65 [1.41-4.97])but no difference in minimum lumen diameter existed (p= 0.447). Follow-up data were available at 385 [362-465] days. The 12-month Kaplan-Meier estimated rates of scaffold thrombosis were 4.9% and 2.0% (ostial and non-ostial lesion groupsrespectivelyLesion03 medical and health sciencesPercutaneous Coronary Interventionwith higher event rates compared with non-ostial lesions. BVS might be associated with advantages over the long termleft anterior (LAD) or circumflex (LCX) coronary in 11 European centres were collected. The primary device-oriented endpoint was defined as a combination of cardiovascular deathInternal medicinemedicineHumanstarget vessel myocardial infarction or target lesion revascularisation. The database included a total of 1Agedp= 0.008). At quantitative coronary angiographybusiness.industryPercutaneous coronary interventionp= 0.618)treatment of ostial lesions was associated with higher residual stenosis (30% [23-41] vs. 26% [20-37]log-rank p= 0.005). The device-oriented composite endpoint occurredmedicine.diseaseSurgery16%)businessEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
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Predictors of leptin concentration and association with cardiovascular risk in patients with coronary artery disease: results from the AtheroGene stu…

2016

AbstractContext: Leptin is produced in white adipose tissue, but also in human coronary atherosclerotic lesions.Objective: The aim of this study is to assess the prognostic value of leptin in patients with proven coronary artery disease (CAD) (N = 1907).Methods: AtheroGene is a contemporary CAD cohort study (N = 3229). Median follow-up time was 3.8 (Quartile 1/3 with 2.8/4.9) years.Results: Leptin concentration was associated with a hazard ratio (HR) for the fully adjusted model of HR = 1.32 in women but was not significant in men. The endpoint cardiovascular death and non-fatal myocardial infarction was observed in 167 patients.Conclusion: In women with known CAD, increased leptin concentr…

LeptinMalemedicine.medical_specialtyHealth Toxicology and MutagenesisClinical BiochemistryMyocardial Infarction030209 endocrinology & metabolismCoronary Artery DiseaseWhite adipose tissue030204 cardiovascular system & hematologyRisk AssessmentBiochemistryCohort StudiesCoronary artery disease03 medical and health sciencesSex Factors0302 clinical medicinePredictive Value of TestsInternal medicinemedicineHumansMyocardial infarctionAgedProportional Hazards ModelsProportional hazards modelbusiness.industryLeptinHazard ratioMiddle Agedmedicine.diseaseCardiovascular DiseasesPredictive value of testsCardiologyFemalebusinessFollow-Up StudiesCohort studyBiomarkers
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Effect of Rivaroxaban and Aspirin in Patients With Peripheral Artery Disease Undergoing Surgical Revascularization: Insights From the VOYAGER PAD Tri…

2021

Background: Patients with peripheral artery disease requiring lower extremity revascularization (LER) are at high risk of adverse limb and cardiovascular events. The VOYAGER PAD trial (Vascular Outcomes Study of ASA [Acetylsalicylic Acid] Along With Rivaroxaban in Endovascular or Surgical Limb Revascularization for PAD) demonstrated that rivaroxaban significantly reduced this risk. The efficacy and safety of rivaroxaban has not been described in patients who underwent surgical LER. Methods: The VOYAGER PAD trial randomized patients with peripheral artery disease after surgical and endovascular LER to rivaroxaban 2.5 mg twice daily plus aspirin or matching placebo plus aspirin and followed …

Lower extremity revascularizationMalemedicine.medical_specialtylower extremity revascularization; major adverse cardiovascular events (MACE); major adverse limb events (MALE); peripheral artery disease; revascularization; rivaroxaban.lower extremity revascularizationArterial diseasemedicine.medical_treatmentDiseaseRevascularizationperipheral artery diseasePeripheral Arterial DiseaseRivaroxabanPhysiology (medical)Internal medicinemedicineHumansIn patientmajor adverse cardiovascular events (MACE)major adverse limb events (MALE)AgedRivaroxabanAspirinAspirinbusiness.industryMiddle AgedCardiologyrevascularizationFemaleCardiology and Cardiovascular Medicinebusinessmedicine.drugSurgical revascularizationCirculation
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