Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0018801 (heart failure)
 72,216 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Previous studies using administrative data have shown high mortality in patients with renal failure requiring dialysis after acute myocardial infarction (AMI). There has been little investigation into the mortality after AMI in those with advanced renal disease who are not on dialysis therapy. We analyzed a prospective coronary care unit registry of 1,724 patients with ST segment elevation myocardial infarction admitted over an 8-year period at a single tertiary-care center. Those not on chronic dialysis therapy were stratified into groups based on corrected creatinine clearance, with cutoff values of 46.2, 63.1, and 81.5 mL/min/72 kg. Dialysis patients (n = 47) were considered as a fifth comparison group. Older age, black race, diabetes, hypertension, previous coronary disease, and heart failure were incrementally more common across increasing renal dysfunction strata. There were also graded increases in the relative risk for atrial and ventricular arrhythmias, heart block, asystole, development of pulmonary congestion, acute mitral regurgitation, and cardiogenic shock. Primary angioplasty, thrombolysis, and beta-blockers were used less often across the risk strata (P < 0.0001 for all trends). There was an early mortality hazard (age-adjusted relative risk, 8.76; P < 0.0001) for those with renal dysfunction but not on dialysis therapy for the first 60 months, followed by graded decrements in survival across increasing renal dysfunction strata. The excess mortality in this population appears to be mediated through arrhythmias, adverse hemodynamic events, and the lower use of mortality-reducing therapy.
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PMID:Determinants of mortality after myocardial infarction in patients with advanced renal dysfunction. 1138 88

In most patients with heart failure due to left ventricular systolic dysfunction, the underlying cause is coronary heart disease. To reduce progression to heart failure in a patient with acute myocardial infarction, it is important to achieve the earliest possible reperfusion, whether by thrombolysis or primary percutaneous coronary intervention. Every patient with acute myocardial infarction should have an assessment of their left ventricular function, the potential for reversibility should be considered, and reversible ischaemia should be identified. Left ventricular dysfunction does not only occur with ST segment elevation myocardial infarction but is also commonly associated with non-ST segment elevation myocardial infarction. Secondary prevention is crucial and this requires long term commitment by the patient and the health care system. Heart failure and left ventricular dysfunction are treatable but require a multidisciplinary, integrated network approach.
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PMID:Heart failure post-myocardial infarction: a review of the issues. 1583 7

The term acute coronary syndrome (ACS) pertains to the instable and life-threatening forms of a clinically manifest coronary artery disease with biochemical and/or electrocardiographic evidence od myocyte cell death. In detail, it includes the unstable angina pectoris, the non-ST segment elevation myocardial infarction (NSTEMI) the ST segment elevation myocardial infarction (STEMI) and as well the sudden cardiac death. As early reperfusion of ischaemic myocardium is the most effective way for limiting infarct size by restoring the balance between myocardial oxygen supply and demand, it is the most important therapeutic goal to achieve early and complete antegrade flow in the occluded or restricted vessel, related with a reduction of short and longtime complications as heart failure and severe arrhythmias. It is generally accepted, that the primary percutaneous coronary intervention (PCI) is the method of choice in acute myocardial infarction (STEMI) to restore TIMI-3 blood flow in occluded coronary arteries, if this can be performed within two hours of symptom onset and by a highly specialized team. Since this requirements are only met in 20% of hospitals caring for patients with STEMI in Germany, the therapy with thrombolytic and anticoagulant agents plays still an important role. Apart from a rapid and effective prehospital primary care, it depends furthermore on a differentiated anticoagulatory and antithrombotic therapy during coronary intervention to get optimal results.
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PMID:[Anticoagulant and thrombolytic agents in acute coronary syndrome]. 1639 83

Myotrophin is a 12 kDa protein initially isolated from hypertrophied hearts of spontaneously hypertensive rats and acts by modulating NF-kappaB (nuclear factor kappaB) activity. We have reported previously the presence of myotrophin in patients with human systolic heart failure; however, its role as a predictor of MACE (major adverse cardiac events) in patients with ACS (acute coronary syndrome) is unclear. In the present study, we sought to investigate this and compared myotrophin with NTproBNP (N-terminal pro-B-type natriuretic peptide), a marker of MACE. We studied 356 patients with ACS {276 men; mean age, 63.0+/-12.8 years; 80.6% STEMI [ST segment elevation MI (myocardial infarction)]; and 19.4% NSTEMI (non-STEMI)}. Blood measurement was made at 25-48 h after the onset of chest pain. The plasma concentration of myotrophin and NTproBNP was determined using in-house non-competitive immunoassays. Patients were followed-up for the combined end point of death, MI or need for urgent revascularization. Over the median follow-up period of 355 (range 0-645) days, there were 28 deaths, 27 non-fatal MIs and 73 patients required urgent revascularization. Myotrophin was raised in patients with MACE compared with survivors [510.7 (116.0-7445.6) fmol/ml compared with 371.5 (51.8-6990.4) fmol/ml respectively; P=0.001; values are medians (range)]. Using a Cox proportional hazards model, myotrophin {HR (hazard ratio), 1.64 [95% CI (confidence interval), 0.97-2.76]; P=0.05} and Killip class above 1 [HR, 1.52 (95% CI, 0.93-2.42); P=0.10] were the only independent predictors of MACE. A Kaplan-Meier survival curve revealed a significantly better clinical outcome in patients with myotrophin below the median compared with those with myotrophin above the median (log rank, 7.63; P=0.006). In conclusion, after an ACS, levels of myotrophin are more informative at predicting MACE than NTproBNP and may be useful to risk stratify patients.
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PMID:Myotrophin is a more powerful predictor of major adverse cardiac events following acute coronary syndrome than N-terminal pro-B-type natriuretic peptide. 1701 19

The Clinical Trials described in this article were presented at the Hotline and Clinical Trial Update Sessions of the European Society of Cardiology Congress held in September 2007 in Vienna, Austria. The sessions chosen for this article represent the scope of interest of Cardiovascular Drugs and Therapy. The presentations should be considered preliminary, as further analyses could alter the final publication of the results of these studies. PROSPECT evaluated echocardiographic criteria for optimal selection of patients with moderate to severe heart failure who may benefit from cardiac resynchronisation therapy, however concluded that no single echocardiographic measure can be recommended. EVEREST found that tolvaptan, a vasopressin V(2) antagonist, resulted in early weight reduction and improvement of dyspnoea in patients with acute heart failure, but lacked long term improvement. In ARISE, the anti-oxidant succinobucal did not affect the primary outcome in high risk cardiovascular patients, but improved the combination of cardiovascular death, myocardial infarction and stroke, and diabetic control in diabetics. ALOFT showed that the addition of the renin inhibitor aliskiren to an ACE inhibitor or ARB and a beta-blocker leads to favourable effects on neurohormonal actions in heart failure. FINESSE markedly improved coronary patency before PCI with half-dose reteplase/abciximab in STEMI patients, however without significantly improving short-term outcome. The Prague-8 Study evaluated whether routine clopidogrel administered >6 h pre-angiography would be a safe way to achieve therapeutic drug levels in case a follow-up intervention would be considered immediately, but appeared not justified because of bleeding complications. CARESS in MI showed that high risk patients with evolving STEMI who undergo thrombolytic therapy should undergo PCI early after the thrombolysis. Finally, the ACUITY trial found that in moderate or high risk Non ST elevation ACS patients triaged to PCI, coronary artery bypass graft (CABG) surgery, or medical management, bivalirudin, with or without associated GPIIb/IIIa inhibitor therapy, resulted in a marked reduction of bleeding at 30 days whilst preserving the ischemic and mortality benefit at 1 year follow up.
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PMID:Clinical trials update from the European Society of Cardiology Congress in Vienna, 2007: PROSPECT, EVEREST, ARISE, ALOFT, FINESSE, Prague-8, CARESS in MI and ACUITY. 1799 67

The term acute coronary syndrome (ACS) pertains to the instable and life-threatening forms of a clinically manifest coronary artery disease with biochemical and/or electro-cardiographic evidence of myocyte cell death. In detail, it includes the unstable angina pectoris, the non-ST segment elevation myocardial infarction (NSTEMI) the ST segment elevation myocardial infarction (STEMI) and as well the sudden cardiac death. As early reperfusion of ischaemic myocardium is the most effective way for limiting infarct size by restoring the balance between myocardial oxygen supply and demand, it is the most important therapeutic goal to achieve early and complete antegrade flow in the occluded or restricted vessel, related with a reduction of short and longtime complications as heart failure and severe arrhythmias. It is generally accepted, that the primary percutaneous coronary intervention (PCI) is the method of choice in acute myocardial infarction (STEMI) to restore TIMI-3 blood flow in occluded coronary arteries, if this can be performed within two hours of symptom onset and by a highly specialized team. Since these requirements are only met in 20% of hospitals caring for patients with STEMI in Germany, the therapy with thrombolytic and anticoagulant agents plays still an important role. Apart from a rapid and effective prehospital primary care, it depends furthermore on a differentiated anticoagulatory and antithrombotic therapy during coronary intervention to get optimal results.
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PMID:[Anticoagulant and thrombolytic agents in acute coronary syndromes]. 1913 73

Recent post hoc analysis of the TRITON trial suggests vascular outcome superiority of prasugrel over clopidogrel in STEMI patients at both 30 days and 15 months. However, this paper is not in full agreement with the data presented in the Food and Drug Administration (FDA) issued Prasugrel Second Review. While the periprocedural advantage of the experimental drug is confirmed by the independent FDA review, the late benefit is grossly exaggerated. The FDA document suggests that the benefit of prasugrel is exclusively front-loaded, with no additional long-term vascular advantage beyond one month if site-reported events are counted. It is unclear why secondary occlusive events in STEMI patients were consistently misdiagnosed by the TRITON investigators, especially considering that site reported MI's correlated with mortality, while adjudicated MI's exhibited similar to MI-free patients mortality rates. Inflation of the outcome superiority is especially alarming considering lack of heart failure benefit for prasugrel, challenging the hypothesis of delayed myocardial preservation by early prevention of "microMI's", or "saving the muscle" hypothesis. In contrast, significant steady growth over time of definite serious bleeding events, and unexpected cancer risks, especially in women, and probably delayed mortality risks with prasugrel are real, clearly dominate in the outpatient setting, and represent a valid safety concern.
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PMID:Late prasugrel benefit in STEMI patients? 1953 32

The mortality rate of acute myocardial infarction has declined considerably in the past three decades. In view of paucity of literature from different centres from India on this issue, the present study was undertaken to determine the in-hospital mortality with acute ST segment elevation myocardial infarction presenting to a tertiary care cardiac centre in India. Consecutive patients (n=862) with the diagnosis of acute ST segment elevation myocardial infarction admitted in Heart Hospital, Patna between June 2003 and July 2006 were included in this study. The in-hospital mortality and event rates (reinfarction, recurrent angina and heart failure) were analysed. The mean age of study population was 56 +/- 13 years. There were 690 males (80.05%) and 172 females (19.95%); 468 patients (54.29%) had hypertension, 384 patients (44.55%) were diabetic, 415 (48.14%) were smokers/tobacco chewers and 154 patients (17.86%) had past history of myocardial infarction. Anterior wall infarction was present in 435 patients (50.46%), 408 patients (47.33%) had inferior wall infarction, 115 patients (13.34%) had associated right ventricular or posterior wall infarction and 19 (2.20%) had antero-inferior infarction; 346 patients (40.14%) received thrombolytic therapy while the other patients were not thrombolysed due to various reasons (usually late arrival). The mean duration between symptom onset and hospital admission was 29.2. +/- 10.8 hours in the entire group (8.6 +/- 2.8 hours in the thrombolysed group). Of the total 862 patients, 107 patients (12.41%) died during in-hospital stay while 755 patients were discharged from the hospital in stable condition after a mean stay of 7.1 +/- 1.8 days. The in-hospital mortality rate of acute ST segment elevation myocardial infarction in this study was 12.41%, which is comparable to reports from the west. However the revascularisation rate (thrombolysis or PTCA) remained low and most patients received thrombolysis late.
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PMID:Short-term mortality and complications in ST elevation myocardial infarction--the Heart Hospital experience. 1955 98

Polymorphonuclear leukocytes play a central role in all stages of the atherothrombotic inflammatory process. The atherothrombotic activity of polymorphonuclear leukocytes is exerted by mediators such as myeloperoxidase (MPO). Although the role of MPO has been studied with respect to the development of adverse cardiac events in acute coronary syndromes (ACS), the association of this molecule with effectiveness of reperfusion in patients receiving thrombolysis is not yet known. The study population consisted of a total of 158 patients with acute coronary syndromes. Final diagnosis was ST-segment elevation myocardial infarction in 86 patients, 80 of whom received thrombolysis. Blood samples were drawn at presentation of the patients and serum myeloperoxidase levels were measured. Reperfusion was defined in terms of electrocardiographic ST-segment resolution. The serum levels of MPO were found to be correlated with rates of in-hospital adverse events including death (P < 0.001), reinfarction (P < 0.001), recurrent ischemia (P < 0.001), arrhythmias (P < 0.001), clinical heart failure (P < 0.001), and cardiogenic shock (P < 0.001). There was a significant difference in serum MPO levels between subjects with three-vessel disease and two- or one-vessel disease (P < 0.001). Pre-lytic serum high-sensitivity C-reactive protein levels in patients with successful reperfusion were lower than in patients with failed reperfusion (P < 0.001). Analysis of patients with ST segment elevation myocardial infarction receiving thrombolytic therapy revealed that pre-lytic serum MPO levels in patients with successful reperfusion were significantly lower than those of patients with failed reperfusion (P < 0.001). In the present study, serum MPO levels were found to be a strong predictor of response to thrombolytic treatment in patients with ST-segment elevation myocardial infarction. Therefore the level of inflammatory activity in acute coronary syndromes seems to influence the effectiveness of fibrinolysis.
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PMID:Serum myeloperoxidase level predicts reperfusion in patients with myocardial infarction receiving thrombolytic therapy. 1962 95

The objective of prehospital care of patients with acute coronary syndrom (ACS) [acute ST segment elevation myocardial infarction (STEMI), acute non-ST segment elevation myocardial infarction (NSTEMI), and unstable angina (UA)], is prompt diagnosis of the acute myocardial infarction, patient's risk assessment, drug administration in order to reduce patient's pain and fear, and prevention or treatment of heart failure. In hospital treatment therapeutic procedures include reperfusion therapy, limitation of infarction zone, treatment of complications (heart failure, life-threatening arrhythmias), prevention of reinfarction, heart failure and eventually prevention of sudden cardiac death. Acute therapeutic procedures include revascularization, anti-ischemic and antithrombolytic treatment, possible surgical revascularization and treatment of complications (arrhythmias, heart failure). The patients with STEMI that present within 3-12 hours from the onset of chest pain should undergo primary percutaneous coronary intervention (PCI). In case of presentation within 3 hours from the occurrence of chest pain, the administration of thrombolytic therapy in this period is equally efficient as PCI. Regardless of reperfusion regimen, the anti-ischemics administered including nitrates (nitroglycerin); intravenous analgesics (morphine-sulfate); O2 2-4 L/min; beta-adrenergic blockers; calcium channel blockers; angiotensin converting enzyme inhibitors (ACE-I); magnesium and glucose-insulin-potassium have proved to be efficient as shown by study results and clinical experience. The mechanism of action of anti-ischemics includes reduction in myocardial oxygen consumption achieved by a decrease of heart frequency, reduction of systemic blood pressure and reduction in myocardial contractility by vasodilatation and consequent better myocardial oxygen supply. The outstanding results of major clinical studies are presented, and main guidelines for anti-ischemic therapy of ACS adopted by the international professional associations are set forth.
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PMID:[Anti-ischemic therapy in patients with STEMI or NSTEMI treated at county and university hospitals]. 1968 63


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