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Diabetes mellitus as a disease of epidemiological impact leads to diabetic cardiopathy by modulation of myocardial, vascular and metabolic components. This includes the development of a coronary microangiopathy and a decrease of diastolic and systolic function of the left ventricle as well as the development of an autonomic diabetic neuropathy. Patients with diabetes show an increased mortality concerning cardiovascular events. They more often suffer from myocardial infarction as non-diabetics mostly with a more serious course. Moreover, the post-infarction course is affected with a worse prognosis as in non-diabetics. For diagnosis of cardial involvement in diabetes electrocardiographic and echocardiographic procedures are of use. Special tests of the autonomic function complete the diagnostic ensemble. An early therapy with ACE-inhibitors and beta blocking agents as well as a strong diabetes therapy, in particular with insulin, can influence the mortality favorably. Moreover, the diagnosis and therapy of additional cardiovascular risk factors (arterial hypertension, dyslipidemia) are very important, because these are correlated with a for diabetic patients markedly increased risk of mortality. The clinical relevance of the term diabetic cardiopathy is justified by the 6 factors: macroangiopathy, microangiopathy, disturbances of the myocardial metabolism, myocardial fibrosis, autonomic diabetic neuropathy and disturbances of the coagulability. Diagnostic and therapeutic goals are discussed.
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PMID:[Cardiac complications in diabetes mellitus]. 1102 65

Obesity has been shown to be an independent risk factor for coronary heart disease. The insulin resistance associated with obesity contributes to the development of other cardiovascular risk factors, including dyslipidemia, hypertension, and type 2 diabetes. The coexistence of hypertension and diabetes increases the risk for macrovascular and microvascular complications, thus predisposing patients to cardiac death, congestive heart failure, coronary heart disease, cerebral and peripheral vascular diseases, nephropathy, and retinopathy. Body weight reduction increases insulin sensitivity and improves both blood glucose and blood pressure control. Metformin therapy also improves insulin sensitivity and has been associated with decreases in cardiovascular events in obese diabetic patients. Antihypertensive treatment in diabetics decreases cardiovascular mortality and slows the decline in glomerular function. However, pharmacological treatment should take into account the effects of the antihypertensive agents on insulin sensitivity and lipid profile. Diuretics and beta-blockers are reported to reduce insulin sensitivity and increase triglyceride levels, whereas calcium channel blockers are metabolically neutral and ACE inhibitors increase insulin sensitivity. For the high-risk hypertensive diabetic patients, ACE inhibition has proven to confer additional renal and vascular protection. Because hypertension and glycemic control are very important determinants of cardiovascular outcome in obese diabetic hypertensive patients, weight reduction, physical exercise, and a combination of antihypertensive and insulin sensitizers agents are strongly recommended to achieve target blood pressure and glucose levels.
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PMID:Treatment of obesity hypertension and diabetes syndrome. 1156 61

The interlinking of CVD with CKD is undeniable. CVD accounts for more than 50% of all morbidity and mortality in patients with kidney disease who have undergone renal replacement therapy, and CVD is also prevalent in patients with mild and moderately severe kidney disease. To help address the elevated risks of these patients, primary care physicians need to maintain vigilance in (1) identifying patients who have CKD and (2) implementing strategies for reducing the prevalence of CVD in this population. It is essential that patients be screened for relatively mild kidney disease by measurement of serum creatinine and urine microalbumin and by calculation of the glomerular filtration rate in mL/min/1.73 m2 using equations based on serum creatinine. Rigorous assessment of conventional risk factors, including dyslipidemia, hypertension, and diabetes, is also necessary to prevent the poor outcomes currently observed in persons with CKD. Routine use of ACE inhibitors and aspirin is encouraged in all patients with CKD, and strict glycemic and blood pressure control is recommended for optimal outcomes. In addition, patients should be screened and treated for risk factors particularly associated with kidney disease and CVD morbidity and mortality, including anemia, hyperphosphatemia, and hyperparathyroidism. Finally, physicians should be careful to avoid therapeutic nihilism in patients with kidney disease; those at highest risk of CVD are likely to receive the greatest benefit from cardiovascular therapies.
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PMID:Cardiovascular disease and the kidney. Tracking a killer in chronic kidney disease. 1198 33

Introduction and objectives. The PREVESE Study reported the situation of secondary prevention after myocardial infarction in Spain. Similar surveys conducted in Europe have also shown that the implementation of secondary prevention is not adequate. The aim of this second PREVESE study was to compare the situation in Spain four years after the first study.Patients and method. We included retrospectively 2,054 patients discharged after myocardial infarction from 74 Spanish hospitals. We studied the available information recorded in medical records after discharge, the prevalence of risk factors, procedures performed, and medical treatment before admission and at discharge. We compared the data collected with those from the first PREVESE study because the data collection methodology was similar.Results. The information recorded in the hospital medical records was satisfactory in relation to the most important risk factors (hypertension 94.8%; dyslipidemia and diabetes 97.9%; and smoking 89.2%). Compared with the previous study, there was a significant decrease in the percentage of smokers (46.1 vs. 35.4%). The echocardiogram was performed more frequently (60.1 vs. 85.6%) and there were also significant differences related to drug treatment at discharge, with an important increase in the prescription of beta-blockers (33.5 vs. 45.1%), ACE inhibitors (32.5 vs. 46.4%), and lipid-lowering drugs (6.7 vs 30.5%).Conclusions. This study shows some improvement in the management of myocardial infarction patients after a four-year period, mainly due to more prescription of cardioprotective drugs at hospital discharge.
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PMID:[New data on secondary prevention of myocardial infarction in Spain. Results of the PREVESE II study]. 1219 75

Diabetes mellitus increases the risk for hypertension and associated cardiovascular diseases, including coronary, cerebrovascular, renal and peripheral vascular disease. The risk for developing cardiovascular disease is increased when both diabetes and hypertension co-exist; in fact, over 11 million Americans have both diabetes and hypertension. These numbers will continue to climb, internationally, since the leading associated risk for diabetes development, obesity, has reached epidemic proportions, globally. Moreover, the frequent association of diabetes with dyslipidemia, as well as coagulation, endothelial, and metabolic abnormalities also aggravates the underlying vascular disease process in patients who possess these comorbid conditions. The renin-angiotensin-aldosterone system (RAS) and arginine vasopressin (AVP) are overactivated in both hypertension and diabetes. Drugs that inhibit this system, such as ACE inhibitors and more recently angiotensin receptor antagonists (ARBs), have proven beneficial effects on the micro- and macrovascular complications of diabetes, especially the kidney. The BRILLIANT study showed that lisinopril reduces microalbuminuria better than CCB therapy. Numerous other long-term studies confirm this association with ACE inhibitors including the HOPE trial. Furthermore, the European Controlled trial of Lisinopril in Insulin-dependent Diabetes (EUCLID) study, showed that lisinopril slowed the progression of renal disease, even in individuals with mild albuminuria. In fact, there are now five appropriately powered randomized placebo-controlled trials to show that both ACE inhibitors and ARBs slow progression of diabetic nephropathy in people with type 2 diabetes. These effects were shown to be better than conventional blood pressure lowering therapy, including dihydropyridine CCBs. In patients with microalbuminuria, ACE inhibitors and ARBs reduce the progression of microalbuminuria to proteinuria and provide a risk reduction of between 38 and 60% for progression to proteinuria. This is important since microalbuminuria is known to be associated with increased vascular permeability and decreased responsiveness to vasodilatory stimuli. Recently, increased AVP levels have been lined to microalbuminuria and hyperfiltration in diabetes. The microvascular and macrovascular benefits of ACE inhibition, ARBs and possible role of AVP antagonists in diabetic patients will be discussed, as will be recommendations for its clinical use.
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PMID:Treatment of the diabetic patient: focus on cardiovascular and renal risk reduction. 1243 44

Diabetic nephropathy is the most important cause of end-stage renal failure. Recent clinical trials have postulated the possibility for prevention and remission of the disease once reckoned as irreversible. In DCCT, UKPDS and Kumamoto study, progression to overt proteinuria was prevented by intensive blood glucose control. Lewis study has demonstrated renoprotective effect of ACE inhibitor in type-1 diabetic nephropathy, and RENAAL and IDNT has documented that of angiotensin II type-1 receptor blocker in type-2 diabetes. Moreover, potential efficacy of lipid lowering in prevention of diabetic nephropathy has been postulated in recent Steno-2, multifactorial intervention trial. Thus, simultaneous adjustment on hyperglycemia, hypertension, and dyslipidemia may lead to prevention and remission of diabetic nephropathy.
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PMID:[Prevention and remission of diabetic nephropathy]. 1287 79

The major risk factors of arteriosclerosis obliterans(ASO) in diabetic patients are age, male gender, smoking, poor glycemic control, hypertension, and dyslipidemia. Thus, to prevent the development and progression of ASO, intensive intervention in the risk factors should be required. HOPE study reported that treatment of ACE-inhibitor in the patients with ASO for 5 years clearly decreased the relative risk for incidence of cardiovascular events comparing with the placebo group. Furthermore, UKPDS Group demonstrated that the adjusted odds ratios to the development of ASO for each 1% HbA1c increase and each 10 mmHg systolic blood pressure increase were respectively 1.28 and 1.25 from multivariate analysis. However, optimal levels of HbA1c and blood pressure for prevention of ASO still have not been suggested. Therefore, large-scale intervention trial in Japanese diabetic subjects should be needed.
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PMID:[Arteriosclerosis obliterans(ASO) in diabetic patients]. 1287 83

BACKGROUND AND THERAPY: The metabolic syndrome comprises a virulent and lethal group of atherosclerotic risk factors, including dyslipidemia, obesity, systemic hypertension and insulin resistance. The prevalence of the metabolic syndrome has continuously grown in industrialized and developing countries during the last decades, and affects tens of millions of people in Germany and Europe. Particularly prominent as a risk factor for the development of insulin resistance is central obesity, which is causally involved in the pathogenesis of insulin resistance in addition to genetic predisposition. The metabolic syndrome can easily be diagnosed in clinical practice (guidelines of the WHO and ATP III panel), and immediate treatment of the metabolic syndrome is mandatory because those patients are at increased risk to develop overt diabetes mellitus, coronary artery disease and stroke. The high risk for cardiovascular diseases is supported by findings that the risk for myocardial infarction in patients with insulin resistance is as high as the risk of patients after their first myocardial infarction. Intentional weight reduction reduces abdominal obesity and beneficially modulates all features of the metabolic syndrome, while the benefits of aerobic exercise training are discussed controversially. Thus, weight reduction causally undoes essential features of the metabolic syndrome, but effects are often not enduring. Therefore, the treatment of cardiovascular risk factors such as hypertension and dislipidemia is essential. Of note, antihypertensive treatment is more effective than tight glucose control to reduce cardiovascular events. Diuretics, ACE-inhibitors and angiotensin II type 1 receptor antagonists are suggested as first line therapeutics. However, at least two antihypertensives are usually necessary to achieve the suggested goals of blood pressure reduction. In conclusion, the prevalence of the metabolic syndrome is continuously growing. Due to its adverse impact on cardiovascular disease, early detection and aggressive treatment is mandatory to ensure longlasting benefits for affected patients.
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PMID:[Arterial hypertension and metabolic syndrome]. 1468 1

Type 2 diabetes mellitus (DM) is associated with an increased risk for both micro-and macrovascular complications, and cardiovascular diseases (CVD) are the most common causes of death in these patients, accounting for almost 70% of the deaths. Given the high prevalence of the condition and the expected global increase in the prevalence of type 2 DM, a case is made for prevention of these serious complications in order to reduce the individual morbidity and the economic burden on society. In this review we present the knowledge of how macrovascular disease in patients with type 2 DM may be prevented, and suggest possible strategies for doing so.A thorough search of the published literature was conducted and we first present relevant epidemiological studies demonstrating the impact of important risk factors for CVD in DM, such as dyslipidemia, hyperglycemia, hypertension, smoking, familial premature coronary heart disease and some non-classical risk factors such as hyperinsulinemia, insulin resistance, endothelial dysfunction and inflammation. Secondly, we review the results from published randomized controlled clinical trials and meta-analysis of these, evaluate the findings and suggest strategies for preventing CVD in patients with type 2 DM using non-pharmacological and pharmacological approaches. Present knowledge indicates that most patients with type 2 DM either have manifest CVD or have a high risk for future cardiovascular events, men with DM have a 2- to 4-fold; and women with DM a 3- to 5-fold increased risk for cardiovascular death compared with non-diabetic individuals. Care of patients with type 2 DM should include yearly risk assessment by the use of published risk equations or risk charts. On the background of this assessment, an individual risk reducing strategy should be tailored to each patient's need, including the treatment of hyperglycemia, hypertension and dyslipidemia together with the use of aspirin (acetylsalicylic acid) and ACE inhibitors. Such measures can reduce the risk of cardiovascular events in patients with type 2 DM.
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PMID:Preventing macrovascular disease in patients with type 2 diabetes mellitus. 1472 81

Heart failure affects nearly 5 million Americans and is associated with high morbidity and mortality rates. It is now recognized that activation of multiple neurohormonal systems is intrinsic in the pathophysiology of heart failure. Patients with diabetes mellitus are at high risk for heart failure, and some of the complications of diabetes (e.g., insulin resistance) contribute to the development and progression of heart failure, partly because of their effects on neurohormonal systems. Pharmacologic intervention directed toward these systems (i.e., angiotensin-converting enzyme [ACE] inhibition, use of aldosterone antagonists, and beta-adrenergic blockade) has been shown to decrease the morbidity and mortality associated with heart failure. Despite this knowledge, ACE inhibitors, aldosterone antagonists, and beta-blockers are grossly underused, and deaths and hospitalizations due to heart failure have steadily increased. Guidelines for the management of heart failure recommend the use of ACE inhibitors and beta-blockers in patients with mild, moderate, or severe disease. Aldosterone antagonists are recommended in severe heart failure, and recent data also support their use in mild to moderate heart failure. Concerns about the increased incidence of hypoglycemia, worsening dyslipidemia, and decreased insulin sensitivity with beta-blocker use may be preventing physicians from prescribing these agents for patients with diabetes with heart failure. Although evidence from earlier clinical trials justifies some of these concerns, newer vasodilating beta-blockers (e.g., carvedilol) have been shown to have a neutral or positive effect on dyslipidemia and insulin resistance. beta-Blockade in conjunction with ACE inhibition should be standard therapy for all patients with diabetes who have heart failure. Furthermore, early in-hospital initiation of neurohormonal intervention can provide earlier benefit to these patients.
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PMID:Managing the patient with diabetes mellitus and heart failure: issues and considerations. 1501 65


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