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Query: UMLS:C0018801 (heart failure)
 72,216 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Atherosclerosis and coronary artery disease (CAD) are now the commonest sequelae of hypertension and all clinical manifestations of CAD occur in excess in persons with elevated blood pressure. Risk increases in relation to the extent of blood pressure elevation whether this is in the systolic or diastolic component, at any age and in either sex. Even isolated systolic hypertension increases cardiovascular risk. Elevated pressures are often accompanied by lipid abnormalities, hyperglycemia, elevated fibrinogen, obesity, and ECG abnormalities, all of which augment the risk. These risk factors associated with hypertension influence the coronary risk potential more than the nature of the blood pressure elevation. Although blood pressure makes an independent contribution to CAD, the risk at any level of pressure is markedly influenced by the cardiovascular risk profile. In mild to moderate hypertension in particular, the risk of CHD is concentrated in those who have impaired glucose tolerance, increased total/HDL ratio, ECG abnormalities, and smoke cigarettes. One or more of these associated risk factors also predisposes to other cardiovascular sequelae of hypertension, including stroke, peripheral vascular disease, and cardiac failure. The presence of organ involvement indicated by proteinuria, evidence of impaired ventricular function, or left ventricular hypertrophy greatly escalates the risk and usually indicates a compromised coronary circulation. Most myocardial infarctions and sudden deaths occur prior to the appearance of such evidence. Hypertensive risk assessment requires consideration of the multivariate risk profile because of the interdependence of the risk factors. The nature and urgency of treatment is better determined from such a risk profile than from the blood pressure parameters alone. Optimal preventive management of hypertension requires more than normalization of the blood pressure if coronary sequelae are to be avoided.
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PMID:Influence of multiple risk factors on the hazard of hypertension. 1152 37

The analysis of the literature data on quality of life (QL) in arterial hypertension (AH) demonstrates that ACE inhibitors and calcium antagonists improve QL while such data on diuretics effect are contradictable. The comparison of pharmacological and surgical treatment effects on QL in patients with coronary heart disease shows that functionally and emotionally CHD patients benefit more from coronary artery bypass surgery. In early chronic cardiac failure QL falls because of the necessity to take treatment, lower everyday activity, work limitations. Later, QL deterioration depends on severity of cardiac activity decompensation is independent of central hemodynamics, myocardial contractility and psychological status of the patient. Adequate use of QL assessment may raise efficacy of treatment of circulatory diseases.
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PMID:[Assessment of the quality of life of cardiological patients: current approach]. 1241 16

Chronic cardiac insufficiency is an illness with increasing epidemiological importance and mortality. Therefore different invasive and non-invasive investigation methods for early recording were developed. The left ventricular ejection fraction (LVEF) has played a special role in this direction. The determination of the contractile reserve by means of non-invasive measurement of blood pressure and flow through the aortic valve is a new and up to now widely unknown method for recording the capability and power reserve of the of myocardium. Since no comparative investigations are known from literature and results from a follow-up are not available yet, we tested whether, by means of contractile reserve, the discrimination of subjects with different cardiac power is possible or not. Forty-two men between 44 and 62 years of age belonging to three groups with different cardiac power (persistence trained, healthy subjects and patients with CHD) were examined non-invasively. The main result of the study is that it is possible to distinguish between the three groups significantly by means of the contractile reserve. The largest value (15.25 W +/- 3.46 W) was found in the "persistence trained" group, followed by the "healthy subjects" (10.85 W +/- 4.19 W). The smallest values were from the "patients" group (7.88 W +/- 2.95 W). The differences between the mean values of the CHD "patients" and the "persistence trained" were significant (p < 0.001). Similar comparisons of the groups of "healthy subjects" and "trained persons" and "healthy subjects" and "patients", respectively, yield p values of p = 0.007 and p = 0.040. These differences are also significant. This study is a first investigation and description of the method. A validation only can be achieved by follow-up investigations.
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PMID:[Contractile reserve as a new parameter for determining the performance of the heart muscle using a noninvasive measuring method]. 1244 69

Atrial fibrillation (AF) and tricuspid regurgitation (TR) may induce congestive heart failure (CHD). Using electrocardiography and echocardiography, we examined the clinical characteristics and haemodynamic findings in 100 patients with AF + TR + CHF, AF + TR, AF or TR. The fractional shortening in all groups with AF was significantly decreased compared with the TR group. The ejection fraction in patients with AF + TR + CHF was significantly lower than in the TR group. Twenty-four of the 72 patients with AF and TR (with or without CHF) were treated, and 13 were monitored for heart rate and severity of TR. Eight months after start of treatment the heart rate and typical symptoms and signs of heart failure had improved significantly in nine patients, but the severity of TR did not change. TR worsened in the remaining four patients but they did not develop CHF. Our results suggest that increased heart rate due to the combination of AF and TR could be responsible for CHF.
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PMID:Congestive heart failure induced by the combination of atrial fibrillation and tricuspid regurgitation. 1470 11

The major message from this discussion is that the end points from hypertensive disease (stroke, CHD, and hypertensive emergencies) are now preventable. Cardiac failure and ESRD, however, two exceedingly common end points from long-standing hypertension, remain as major disabilities and causes of death. The former is the most common cause of hospitalization in industrialized societies; hypertension and diabetes mellitus are the most common causes of the latter. The mechanisms of risk of these target organ diseases is not LVH per se, or the elevated arterial pressure alone in the kidney, but the coronary and renal ischemia, organ fibrosis, and, perhaps, apoptosis. Present day therapy now can effectively reverse these costly (economically and by human suffering) complications. Recent experimental studies suggest that, when used early enough, these newer pharmacologic agents may even prevent their occurrences and consequences. The very practical lesson from these experiences is that early detection and treatment of hypertension, effective control of arterial pressure, and the suppression of the underlying disease mechanisms markedly reduce the now increasing prevalence of both cardiac and renal failure.
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PMID:Target organ involvement in hypertension: a realistic promise of prevention and reversal. 1487 Oct 60

The purpose of the study was to evaluate hemodynamic and anti-ischemic effects of moexipril in patients with postinfarction left ventricular dysfunction (PL VD) and moderate left ventricular heart failure (NYHA functional class II-III). The subjects of the study were 21 male patients (aged 52.4 +/- 1.1 years) with CHD and PLVD, related to old large-focal anterior myocardial Q-wave infarction. 4-week treatment with ACF-inhibitor moexipril in an average dose of 10.7 +/- 0.4 mg per day clinically improved the patients' condition, which was characterized by 32.2% reduction of stenocardia attack frequency (p < 0.01) and 36.4% decrease in nitroglycerin demand (p < 0.01). Activity tolerance increased by 39.2% (p < 0.001), and echoCG found a 16.5% increase of LV ejection fraction (p < 0.05). Conjunctival biomicroscopy showed that moexipril substantially improved microcirculation (MC); total conjunctival index significantly decreased by 21.7%. The results of the 4-week moexipril administration demonstrate hemodynamic and anti-ischemic effects of the new ACF inhibitor, its positive influence on transcapillary oxygen exchange and MC in patients with PLVD, associated with NYHA functional class II-III heart failure.
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PMID:[Hemodynamic and anti-ischemic effects of moexipril in patients having postinfarction heart dysfunction and moderate left ventricular heart failure]. 1575 92

In experimental animals, bradykinin type-1 receptors (BK-1Rs) are induced during inflammation and ischemia, and, by exerting either cardioprotective or cardiotoxic effects, they may contribute to the pathogenesis of heart failure. Nothing is known about the expression of BK-1Rs in human heart failure. Human heart tissue was obtained from excised hearts of patients undergoing cardiac transplantation (n = 13), due to idiopathic dilated cardiomyopathy (IDC; n = 7) or to coronary heart disease (CHD; n = 6), and from normal hearts (n = 6). The expression of BK-1Rs was analyzed by means of competitive RT-PCR, Western blot analysis, and immunohistochemistry. Expression of BK-1R mRNA was increased in both IDC (2.8-fold) and CHD (2.1-fold) hearts compared with normal hearts. The observed changes were verified at the protein level. Expression of BK-1Rs in failing hearts localized to the endothelium of intramyocardial coronary vessels and correlated with an increased expression of TNF-alpha in the vessel wall. Treatment of human coronary artery endothelial cells with TNF-alpha increases their BK-1R expression. These novel results show that BK-1Rs are induced in the endothelium of intramyocardial coronary vessels in failing human hearts and so may participate in the pathogenesis of heart failure.
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PMID:Increased expression of bradykinin type-1 receptors in endothelium of intramyocardial coronary vessels in human failing hearts. 1584 Sep 6

The paper presents the results of an examination of 129 elderly patients with CHD who had had a myocardial infarction and suffered from II-III functional class heart failure. The patients were divided into four groups. The patients in the first group were administered complex therapy (CT) only; the second group received CT plus a composition of replaceable amino acids (CRAA) sublingually and orally, the third group received CT plus a placebo and the fourth--CT plus melatonin in doses of 3 and 6 mg. The efficiency of the treatment was assessed by the dynamics of clinical manifestations and by means of echoCG and Holter ECG-monitoring; parameters of lipid peroxidation and antioxidative protectability in erythrocytes were measured. The comparison of the results suggests that addition of CRAA and melatonin in a dose of 6 mg to CT is more effective than CT only. This was proved by the more pronounced positive dynamics of clinical symptoms, the improval of the myocardial contractility and normolizing influence on the balance in the oxidant/antioxidant system.
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PMID:[Effectiveness of metabolic preparations in complex treatment of elderly patients with postinfarction cardiosclerosis and circulatory insufficiency]. 1588 44

It is a common practice to perform percutaneous or open coronary artery revascularisation in CHD to prevent sudden or unexpected death. Such a practice assumes that sudden and unexpected death is common in stable patients with uncomplicated CHD. This is a retrospective analysis of 248 patients (199, 80% men, 49, 20% women) who had median age 65.1 when assessed after stabilisation of their CHD and were followed up to 25 years until their death. Myocardial revascularisation was only performed after the patients had stabilised if they developed either progressive clinical disability or acute coronary syndromes. At stabilisation, 181 (73%) were uncomplicated, 59 (24%) had heart failure (HF) and 8 (3%) had other comorbidities. At their last visit before death, 67 (27%) were uncomplicated, 121 (49%) had HF, 41 (17%) had cancer and 19 (8%) had other comorbidities. Their median age at death was 72.4 years. 77 (31%) died suddenly, 47 (19%) of HF, 39 (16%) of cancer, 35 (14%) of acute myocardial infarction (AMI) and 50 (20%) had miscellaneous modes of dying. Unexpected death occurred in 26 (10%) of cases: sudden 12, AMI 7, stroke 3, suicide 2, abdominal aneurysm 1, motor vehicle accident 1. We conclude that the clinical condition of most patients with CHD deteriorates between their initial stabilisation and their final visit before their death-metamorphosis. Only a small proportion of deaths occur in patients with stable CHD and no HF. Intervention in stable patients without CHF is unlikely to reduce sudden or unexpected death in patients with CHD.
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PMID:Metamorphosis: the natural history of coronary heart disease. Sudden death is common. Unexpected death is not. 1690 70

Chronic heart failure (CHF) in patients with diabetes mellitus (DM) is a condition that is frequent and has a poor prognosis. Diabetes mellitus is an independent risk factor for CHF and vice versa. CHF is found in 10-15% of the patients with DM compared to 3% in individuals without DM. Apart from CHD and hypertension, hyperglycaemia and insulin resistance are directly linked to the development of diastolic dysfunction and to CHF. According to the stepwise diagnostic procedure recommended by the ESC in its guidelines from 2005, if heart failure is suspected, the disease should first be diagnosed by ECG, X-ray, or testing for natriuretic peptide and followed by echocardiography when test results are abnormal. Treatment of CHF in patients with diabetes mellitus is the same as that for nondiabetic patients and includes the use of ACEIs, ARBSs (as an alternative to or in combination with ACEIs), BBs, diuretics (in particular loop diuretics), aldosterone inhibitors and digitalis. Most importantly, meticulous glucose control is a must in patients with diabetes mellitus and CHF to improve prognosis. Contraindications for antidiabetic drugs such as glitazones for CHF-NYHA classes I-IV and metformin for NYHA classes III-IV need to be considered in patients with CHF and diabetes mellitus.
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PMID:[Diabetes mellitus and heart failure]. 1791 62


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