AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesInformation ScienceHealth Care
Coronary CirculationCoronary VesselsCoronary AngiographyCoronary OcclusionCoronary Artery DiseaseAngioplasty, Balloon, CoronaryCoronary DiseaseDogsCoronary StenosisCollateral CirculationMyocardial InfarctionCoronary Artery BypassHemodynamicsCoronary VasospasmMyocardial IschemiaMyocardial ReperfusionMyocardiumHeartCoronary ThrombosisMyocardial Reperfusion InjuryVasodilator AgentsVascular ResistanceVasodilationBlood Flow VelocityTime FactorsCoronary AneurysmElectrocardiographyAdenosineBlood PressureIschemic Preconditioning, MyocardialHyperemiaCoronary RestenosisStentsSwineTreatment OutcomeCardiac CatheterizationAcetylcholineRegional Blood FlowNitric OxideBalloon OcclusionRisk FactorsMyocardial ContractionNitroglycerinMyocardial StunningPercutaneous Coronary InterventionHeart RateEndothelium, VascularArterial Occlusive DiseasesMicrocirculationPerfusionVentricular Function, LeftAngina Pectoris, VariantVasomotor SystemProspective StudiesFollow-Up StudiesModels, CardiovascularHeart VentriclesCoronary Care UnitsVasoconstrictionPapaverineConstrictionEchocardiographyBlood CirculationDisease Models, Animalomega-N-MethylarginineUltrasonography, InterventionalMyocardial RevascularizationPredictive Value of TestsAnalysis of VarianceOxygen ConsumptionAngina PectorisArrhythmias, CardiacBiological MarkersNitric Oxide SynthaseDiastoleArteriesNitroprussideCineangiographyVentricular FibrillationDose-Response Relationship, DrugRetinal Artery OcclusionCalcinosisMicrospheresGlyburideConsciousnessArteriovenous AnastomosisRetinal Vein OcclusionTomography, X-Ray ComputedCoronary Artery Bypass, Off-PumpCardiac OutputRecurrenceAngina, UnstableExtracorporeal CirculationLigationNitroarginineTantalumCreatine KinaseBradykininDipyridamoleSeverity of Illness Index
Left AnteriAngiographyStenosisLesionsDiseasePercutaneous coronary interventionsPerfusionDistalAcute coronaryRevascularizationPredictors of Coronary Artery EctasiaArteriesCABGInterventionsIschemiaRight coronaCollateralDrug-elutinMyocardiumElevation MyocardialTotal OcclusionsAngioplastyElectrocardiogramProximalArtery flowChronicCardiacThrombosisSinusPatencyArterialInterventionStentsSevereOutcomesEpicardialReturn of spontaneous circulationBypass surgery2019Ligation2020CharacterizationReperfusionIntensive care
Left Anteri1
  • Left Main Coronary Artery: Normal Left Anterior Descending artery: Total occlusion at the ostium with blunt stump. (complex-pci.com)
Angiography16
Stenosis7
  • Different graft flow patterns due to competitive flow or stenosis in the coronary anastomosis assessed by transit-time flowmetry in a porcine model. (hsforum.com)
  • Cardiac catheterization, using minimal contrast, revealed an 80% distal left main coronary stenosis (Fig. 1A) and a 90% proximal right coronary stenosis (Fig. 1B). (ispub.com)
  • Gruntzig, A. (1978) Trans Luminal Dilatation of Coronary-Artery Stenosis. (scirp.org)
  • Calcified at proximal segment Left Circumflex artery: Tubular stenosis 80% at the proximal segment Right coronary artery : Discrete stenosis 60% at Distal The Heart Surgery Conference decided to perform PCI. (complex-pci.com)
  • The abnormalities affect the myocardial area supplied by the arteries distal to the occlusion or stenosis. (ecgwaves.com)
  • Depending on several factors- including the severity of the stenosis/occlusion, microvascular function, myocardial oxygen extraction, presence of collateral circulation, etc -ischemia may also develop during resting conditions. (ecgwaves.com)
  • She had no risk factors for coronary artery disease in her medical history but it was learned that she had undergone a mitral valve replacement 2 years before because of rheumatic mitral stenosis and that no international normalized ratio (INR) analysis had been done in the last 6 months. (who.int)
Lesions8
  • In OHCA and NSTEMI, an ECG-based decision to guide management is insufficient to identify unstable coronary lesions. (em-consulte.com)
  • In patients with coronary lesions without the instability characteristic, conservative management should be the default strategy, and a search for another cause of the cardiac arrest should be systematic. (em-consulte.com)
  • Prognostic impact of coronary lesions and its revascularization in a 5-year follow-up after the TAVI procedure. (amedeo.com)
  • Angiographic Features and Clinical Outcomes of Balloon Uncrossable Lesions during Chronic Total Occlusion Percutaneous Coronary Intervention. (u-szeged.hu)
  • Impact of concomitant treatment of non-chronic total occlusion lesions at the time of chronic total occlusion intervention. (u-szeged.hu)
  • The expanded indication includes the intraluminal placement of conventional guidewires beyond stenotic coronary lesions [including chronic total occlusions (CTOs)] prior to PTCA or stent intervention. (medicaldesignandoutsourcing.com)
  • CTOs are chronically stenosed lesions that completely block a coronary artery - typically for 3 months or longer - and prevent blood circulation to critical areas of the heart. (medicaldesignandoutsourcing.com)
  • Uses of balloon catheters or BMS for the treatment of coronary artery lesions shows good short-term results but long-term follow up revealed restenosis in up to 20%-30% of patients. (scirp.org)
Disease30
Percutaneous coronary interventions4
  • Single vs. multiple operators for chronic total occlusion percutaneous coronary interventions: From the PROGRESS‐CTO Registry. (u-szeged.hu)
  • In-Hospital Outcomes of Chronic Total Occlusion Percutaneous Coronary Interventions in Patients With Prior Coronary Artery Bypass Graft Surgery. (u-szeged.hu)
  • Procedural Outcomes of Percutaneous Coronary Interventions for Chronic Total Occlusions Via the Radial Approach. (u-szeged.hu)
  • Development and Validation of a Scoring System for Predicting Periprocedural Complications During Percutaneous Coronary Interventions of Chronic Total Occlusions: The Prospective Global Registry for the Study of Chronic Total Occlusion Intervention (PROGRESS CTO) Complications Score. (harvard.edu)
Perfusion5
Distal5
  • 2011. The impact of competitive flow on distal coronary flow and on graft flow during coronary artery bypass surgery. (hsforum.com)
  • The catheter-engaged left main coronary artery shows an 80% distal lesion prior to the bifurcation of the left anterior descending and circumflex coronary arteries. (ispub.com)
  • The proximal segment of the gyral branch was 99% narrowed, and the distal end formed a collateral circulation to supply the right crown. (rcpjournals.org)
  • Distal part receives blood flow from collateral circulation (Rentrop III). (complex-pci.com)
  • We did not perform acute coronary syndrome, coronary elevation myocardial infarction, whereas angioplasty because the obstruction embolism should be kept in mind in the rest present with non-ST elevation was in the distal portion of the vessel those with prosthetic valves even in the myocardial infarction [8]. (who.int)
Acute coronary12
  • An early revascularization strategy with either PCI or CABG, in collaboration between cardiologists and surgeons, is recommended for appropriate patients with suspected cardiogenic shock related to acute coronary syndrome (eg, those with uncertain neurologic status, those who received previous fibrinolysis), regardless of the time delay from MI onset. (medscape.com)
  • 2014 AHA/ACC guideline for the management of patients with non-ST-elevation acute coronary syndromes: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. (medscape.com)
  • Of these, 122 (45.4%) received CC while comatose (early CC). Acute coronary occlusion was discovered in 26.6% of patients treated with early CC compared to 29.3% of patients treated with late CC (p=0.381). (nih.gov)
  • The incidence of acute coronary occlusion is high, even when STEMI is not present on the postresuscitation electrocardiogram. (nih.gov)
  • In the situation of acute coronary occlusion, the myocardium supplied by the occluded vessel is subject to ischemia and is referred to as the myocardium at risk (MaR). Single photon emission computed tomography has previously been used for quantitative assessment of the MaR. It is, however, associated with considerable logistic challenges for employment in clinical routine. (biomedcentral.com)
  • RATIONALE: A well-developed coronary collateral circulation improves the morbidity and mortality of patients following an acute coronary occlusion. (omeka.net)
  • RESULTS: Among 499 randomly assigned patients, the mean age was 67.9±8.3 years, 87.1% were male, the indication for CABG was acute coronary syndrome in 31.3%, and 95.2% of procedures used cardiopulmonary bypass. (eur.nl)
  • Acute coronary syndromes occur when atherosclerotic plaques rupture or erode, leading to atherothrombosis and occlusion. (ecgwaves.com)
  • Overview of Acute Coronary Syndromes (ACS) Acute coronary syndromes result from acute obstruction of a coronary artery. (msdmanuals.com)
  • Papillary Muscle Disorders Numerous complications can occur as a result of an acute coronary syndrome and increase morbidity and mortality. (msdmanuals.com)
  • Mural Thrombosis Numerous complications can occur as a result of an acute coronary syndrome and increase morbidity and mortality. (msdmanuals.com)
  • The chest pain of the patient was assessed to be typical of acute coronary syndrome. (who.int)
Revascularization5
  • A positive family history includes any first-degree male relative aged 45 years or younger or any first-degree female relative aged 55 years or younger who experienced an MI or the need for coronary revascularization. (medscape.com)
  • Early and definitive restoration of coronary blood flow (ie, early revascularization) is the most important intervention for achieving an improved survival rate. (medscape.com)
  • Role of coronary graft flow measurement during reoperations for early graft failure after off-pump coronary revascularization. (hsforum.com)
  • 2006. Emergency re-revascularization with percutaneous coronary intervention, reoperation, or conservative treatment in patients with acute perioperative graft failure following coronary artery bypass surgery. (hsforum.com)
  • The secondary outcome was 1-year SVG failure, which was a composite of SVG occlusion, SVG revascularization, myocardial infarction in myocardial territory supplied by a SVG, or sudden death. (eur.nl)
Predictors of Coronary Artery Ectasia1
  • Clinical Predictors of Coronary Artery Ectasia. (amedeo.com)
Arteries1
CABG4
  • We performed off-pump coronary artery bypass grafting (CABG)-left internal mammary artery (LIMA) to the LAD-on 5 Yorkshire-Landrace pigs. (hsforum.com)
  • BACKGROUND: Approximately 15% of saphenous vein grafts (SVGs) occlude during the first year after coronary artery bypass graft surgery (CABG) despite aspirin use. (eur.nl)
  • The POPular CABG trial (The Effect of Ticagrelor on Saphenous Vein Graft Patency in Patients Undergoing Coronary Artery Bypass Grafting Surgery) investigated whether ticagrelor added to standard aspirin improves SVG patency at 1 year after CABG. (eur.nl)
  • CONCLUSIONS: In this randomized, placebo-controlled trial, the addition of ticagrelor to standard aspirin did not reduce SVG occlusion at 1 year after CABG. (eur.nl)
Interventions2
  • Technical and procedural outcomes of the retrograde approach to chronic total occlusion interventions: Insights from an International CTO Registry. (u-szeged.hu)
  • Outcomes With the Use of the Retrograde Approach for Coronary Chronic Total Occlusion Interventions in a Contemporary Multicenter US Registry. (harvard.edu)
Ischemia2
  • While striking chanares of polaro-graphic oxygen and contractility regularly occur a few seconds after coronary arterial branch occlusion, epieardial electrocardio-graphic changes are delayed and sometimes absent.1 Intramyocardial electrocardiographic studies, on the other hand, reveal that local-ized ischemia disturbs myocardial electrical activity at least as early as either oxygena-tion or contractility, and over a more exten-sive area. (1library.net)
  • Ischemia translates into "oxygen shortage" and when the heart lacks oxygen due to poor circulation, chest pain (angina pectoris) may occur in connection with physical exertion, cardiac thrombosis, heart failure and sudden death. (healthandscience.eu)
Right corona2
  • 1B: LAO projection of the right coronary artery showing a 90% proximal lesion just prior to the origin of a right ventricular branch. (ispub.com)
  • We report here a case of embolic portion of the right coronary artery 5 mm (Figure 2). (who.int)
Collateral6
Drug-elutin1
  • 2011. Quality of life after PCI with drug-eluting stents or coronary-artery bypass surgery. (hsforum.com)
Myocardium1
  • HN - 2008 BX - Granulosa Cells, Cumulus MH - Coronary Sinus UI - D054326 MN - A07.231.908.194.500 MS - A short vein that collects about two thirds of the venous blood from the MYOCARDIUM and drains into the RIGHT ATRIUM. (bvsalud.org)
Elevation Myocardial1
Total Occlusions2
  • This expanded indication is the result of data generated from the 147-patient FAST-CTOs clinical trial in which the safety and effectiveness of the system in coronary chronic total occlusions was demonstrated. (medicaldesignandoutsourcing.com)
  • Dr. William Lombardi of St. Joseph's Hospital in Bellingham, WA and a leading enroller in the clinical trial states, "The BridgePoint system is the first set of devices designed specifically for treating coronary Chronic Total Occlusions that has shown real improvements in safety, procedural efficiency, and clinical success rates. (medicaldesignandoutsourcing.com)
Angioplasty2
  • 1987) Intravascular Stents to Prevent Occlusion and Restenosis after Transluminal Angioplasty. (scirp.org)
  • The post-PCI images show guidewires across the LAD and RCA stenotic segments with normal vascular flow in both coronary vessels reflecting successful angioplasty. (siemens-healthineers.com)
Electrocardiogram2
  • Mor-Avi V., Shargorodsky B., Abboud S., Laniado S., Akselrod S. Effects of coronary occlusion on high-frequency content of the epicardial electrogram and body surface electrocardiogram. (wikipedia.org)
  • Acute complete coronary occlusion is often demonstrated among patients with ST-segment elevation on electrocardiogram after the return of spontaneous circulation. (em-consulte.com)
Proximal1
  • 1A: Shallow RAO magnified projection of the proximal left coronary system. (ispub.com)
Artery flow1
  • The first results of coronary artery flow measurements have now been reported. (ox.ac.uk)
Chronic6
Cardiac3
  • Percutaneous coronary intervention has been shown to improve the prognosis of survivors when an unstable coronary lesion is identified as the potential cause of the cardiac arrest. (em-consulte.com)
  • Update on Cardiac Catheterization in Patients With Prior Coronary Artery Bypass Graft Surgery. (u-szeged.hu)
  • Coronary sinus, normally located between the LEFT ATRIUM and LEFT VENTRICLE on the posterior surface of the heart, can serve as an anatomical reference for cardiac procedures. (bvsalud.org)
Thrombosis1
Sinus2
  • Intermittent coronary sinus occlusion and PICSO has substantial benefit in educing myocardial jeopardy both in animals and humans. (coronarysinus.com)
  • PICSO (pressure controlled intermittent coronary sinus occlusion). (coronarysinus.com)
Patency1
Arterial1
Intervention2
Stents1
  • Garg, S. and Serruys, P.W. (2010) Coronary Stents: Current Status. (scirp.org)
Severe1
  • Neovascular glaucoma is a secondary glaucoma occurring as a result of severely reduced blood flow to the eye as may be observed in central retinal vein occlusion or with severe diabetic retinopathy. (pharmacology2000.com)
Outcomes1
  • Sex-based treatment and outcomes for coronary bifurcation stenting: A report from the e-ULTIMASTER registry. (amedeo.com)
Epicardial1
  • 2008. Epicardial coronary artery Doppler: validation in the animal model. (hsforum.com)
Return of spontaneous circulation1
  • In a multivariate regression model that included study site, age, bystander CPR, shock on admission, comorbid medical conditions, witnessed arrest, and time to return of spontaneous circulation, early CC was independently associated with a significant reduction in the risk of death (OR 0.35, 95% CI 0.18-0.70, p=0.003). (nih.gov)
Bypass surgery2
20192
  • Circulation 140(5):420-433, 2019. (rimuhc.ca)
  • In January 2019, Somahlution released a clinical study stating that DuraGraft lowers the risk of post coronary bypass grafting. (medgadget.com)
Ligation1
  • Several methods have been developed-surgical ligation or amputation and percutaneous catheter based occlusion with specific occlude devices ( figure 1 ). (bmj.com)
20201
Characterization1
  • Clinical Characterization of Coronary Atherosclerosis With Dual-Modality OCT and Near-Infrared Autofluorescence Imaging. (harvard.edu)
Reperfusion1
  • 2 This concept was advanced further in 1976 with the first publication of coronary reperfusion after coronary thrombolysis, 3 and in 1981 when it was proven that thrombolytic reperfusion salvaged myocardial tissue. (icrjournal.com)
Intensive care1
  • Most cases present as cer- coronary intensive care unit with the no coronary risk factors and had an ebrovascular events. (who.int)