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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Asymptomatic hyperuricemia should be treated only if the plasma uric acid levels are around 10 mg/100 ml or more on several determinations. In addition, patients on a purine-free diet who excrete more than 600 mg uric acid per 24 h should be treated. In both cases, treatment is intended to be prophylactic against gouty nephropathy. At present there is no evidence that primary hyperuricemia alone is a risk factor for early atherosclerosis and especially coronary artery disease. However, more attention should be paid to the accompanying risk factors such as obesity, hyperlipoproteinemia, diabetes mellitus and hypertension.
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PMID:[Which uric acid value is in need of treatment?]. 126 67

This study has been designed to evaluate whether duration and severity of obesity can influence left ventricular function response to exercise in obese subjects without other known cardiovascular risk factors such as hypertension, diabetes or hyperlipoproteinemia. A total of 29 obese subjects were included and they were divided, according to their body mass index and to Garrow's criteria as follows: Overweight or mildly obese subjects: body mass index from 25 to 30 kg/m2; moderately obese subjects: body mass index > 30 and < 40 kg/m2. Both obese groups were further subdivided according to their duration of obesity evaluated by accurate anamnesis in subgroup A (duration of obesity less than 120 months) and subgroup B (duration of obesity more than 120 months). Left ventricular ejection fraction was detected by blood pool gated radionuclide angiocardiography both at rest and after symptom-limited bicycle ergometer procedure. At peak exercise left ventricular ejection fraction increased significantly (p < 0.05) only in overweight subjects. Exercise produced an increase of left ventricular ejection fraction in 14 overweight and in 5 moderately obese subjects and a decrease in 2 moderately obese subjects. At peak exercise mean heart rate and mean blood pressure increased significantly (p < 0.001) in both groups. When obese subjects were subgrouped according to duration of obesity, left ventricular ejection fraction increased significantly (p < 0.05) only in overweight subjects with duration of obesity less than 120 months. Duration of obesity correlated inversely with percent change in left ventricular ejection fraction (EF) at peak exercise (delta EF) (r = -0.59; p < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Left ventricular function response to exercise in normotensive obese subjects: influence of degree and duration of obesity. 145 80

The primary and secondary prevention of cardiovascular diseases and, therefore, the therapy of hyperlipidemia is essential in strategies to lower morbidity and mortality from coronary heart disease (CHD), the most relevant atherosclerosis-associated disease. These programs imply not only a medical but also an economic challenge to our health system. That is why all therapeutic measures have to be evaluated regarding their cost-effectiveness. A cost-effectiveness profile was calculated for all the therapies of hyperlipidemia (nutritional therapy, dietetic nutritionals, drugs and LDL-apheresis) with respect to the following parameters: total cholesterol, LDL-cholesterol, HDL-cholesterol and triglycerides. The daily costs of all interventional measures are compared to the success rate, whereby an index of daily therapy costs and 1% change per lipid parameter was calculated. Nutritional therapy is by far the cheapest, and LDL-apheresis the most expensive but also the most effective and reliable therapeutic measure. It has to be considered, however, that dietary intervention can be very successful in overnutrition while in rare cases of severe homozygous familial hypercholesterolemia there is no therapeutic alternative to LDL-apheresis. Life-style modifications, such as changing nutritional habits, may contribute towards reducing or removing one or more risk factor(s) (e.g. malnutrition is associated with overweight, hyperlipoproteinemia (HLP), hyperinsulinemia (syndrome X), hyperfibrinogenemia and hypertension). But neither health politicians nor the population seem to be conscious of the fact that life-style changes help to reduce medical expenditure. Considering the fact that nearly every medical service is getting more and more expensive, the need to introduce financial regulations is evident.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Economic aspects of therapy for lipid metabolism disorders]. 150 39

The aim of the study was to evaluate the direct influence of lipid parameters (total and HDL-cholesterol, triglycerides and total lipids) on the rheologic-coagulative pattern. We studied blood rheological properties--blood (BV), plasmatic (PV), and seric (SV) viscosity, whole blood (WBF) and red cell (RCF) filterability--and some coagulative factors--fibrinogen (Fib), levels of clotting factor VII (fVIIc) and VIII (fVIIIc) activity--in 156 men aged 40-54 years; 87 patients had type II hyperlipoproteinemia (46 type IIa and 41 type IIb) and 69 were normolipemic controls. Smokers, patients with arterial hypertension, diabetes mellitus or cardiovascular clinical manifestations were excluded. Type IIb hyperlipoproteinemic patients had increased blood viscosity (shear rate 225 sec-1, p. less than 0.01), which was positively correlated with triglycerides and fibrinogen concentration. Levels of fibrinogen, fVIIc and fVIIIc activity did not differ significantly in hyperlipemic patients and controls, although fVIIc activity and fibrinogen were both positively related with lipid parameters. These data suggest that, in absence of other major risk factors, the alterations of the rheologic-coagulative pattern are mainly dependent on the severity of the lipid disorder.
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PMID:[The relationships between the lipoprotein profile and rheological-coagulation parameters in patients with hyperlipoproteinemia type II]. 162 10

Conventional risk factors predict only about 30-50% of incidental cases in cardiovascular diseases, which are still the leading cause of death in western societies. During the last decade, the importance of thrombosis as an essential mechanism in acute myocardial infarction (AMI) and stroke has been established. The introduction of thrombolysis has led to an impressive reduction in AMI case fatality and possibly also to a substantial amelioration of its prognosis. Evidence from experimental, clinical and epidemiological studies suggest, that several hemostatic and hemorheological factors (e.g., fibrinogen, Factor VII, plasma viscosity, hematocrit, red blood cell aggregation, total white cell count) might not only play an important role in the evolution of acute thrombotic events, but may also take part in the pathophysiology of atherosclerosis. An increasing number of studies reports altered hemostatic and hemorheological parameters to be associated with smoking, hyperlipoproteinemia, and high blood pressure, as well as with adverse dietary habits and other life-style factors. To date, their way of interaction with the atherosclerotic process is poorly understood. Hemorheological or hemostatic mechanisms that might promote thromboatherogenesis include the predisposition to thrombosis via a hypercoagulable state, the enhancement of atherosclerosis by fibrinogen and its metabolites, and finally the reduction of blood flow through various rheological effects (e.g., increase in plasma viscosity and red cell aggregation, or leukocyte activation). Future research should focus in more detail on the interrelationship between accepted risk factors and the hemostatic system as well as hemorheological parameters. Deeper insight into the mechanisms involved might lead to new preventive strategies as well as to therapeutic procedures in the management of atherosclerosis and associated thrombotic events.
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PMID:The possible role of hemorheology in atherothrombogenesis. 163 76

A study of the programmed nurse clinic in a health center was carried out to evaluate its different health care activities, the time consumed in them, the type of patients cared for, and the mechanism of organization of the clinic. A remarkable finding was a high number of daily appointments (11.8 persons), with an excellent rate of compliance with the appointment (89.3%). It was found that most of the diseases cared for in the nurse clinic were those most commonly managed with a protocol design in primary care: hypertension (34.1%), diabetes (6.9%), hyperlipoproteinemia (9%) and obesity (12.8%). Other parameters were evaluated, such as mean time per visit, which was predominantly between five and ten minutes, or activities during the visits, with a clear predominance of the clinical protocols. There was a remarkably high efficiency of the nursing staff, with a low rate of referral to the medical clinic (6.9%). We conclude that nurse clinics play an important role in the health centers, as the only possible mechanism to guarantee the correct fulfillment of the different programs. This requires a definite constant physical space for a given minimal period of time of about 2 hours per day.
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PMID:[A prospective study of programmed nursing consultation in an urban health center]. 175 27

Intestinal ischemia following open heart surgery is rare but nevertheless extremely dangerous and the causes are still unclear. The purpose of this study was to evaluate the factors influencing the occurrence and outcome of patients with this complication. At our institution between 1985 and 1989 1712 patients underwent open heart surgery and 4 female patients suffered from intestinal ischemia. The early mortality was 2.5% for the whole group and 100% for the group with intestinal ischemia. All these 4 patients were elderly and had a history of hypertension and hyperlipoproteinemia. Three of the four patients with intestinal ischemia had various risk factors for thromboembolic events such as pre-existing occlusive arterial disease and cardiac dysrhythmias or had a complicated postoperative course. In two patients an enormous increase in serum lactate to over 10 mmol/l occurred prior to the intestinal ischemia. We therefore consider advancing age, female gender and a susceptibility for thromboembolic events as important risk factors for the development of intestinal ischemia. A serum lactate over 10 mmol/l should lead to an aggressive diagnostic and therapeutic approach including exploratory laparotomy.
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PMID:Intestinal ischemia associated with cardio-pulmonary-bypass surgery: a life threatening complication. 186 84

Virtual consumption of magnesium with food by an unorganized population of men aged 20-59 (780 people) living in Kiev has been studied. Insufficient magnesium content in the nutrition rations of the population (10% lower than the recommended values) has been observed. A correlation between the low magnesium consumption with food and prevalence of the ischemic heart disease, such risk factors of it, as hyperlipoproteinemia, arterial hypertension, redundant body weight.
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PMID:[Magnesium level in food rations and the prevalence of ischemic heart disease among the population]. 191 37

This paper reviews several articles on the subject of presbycusis, and its relationship to dietary lipids--particularly lipoproteins--as well as hypertension, and noise exposure. Although most studies do reach some sort of consensus, the evidence supporting a relationship between presbycusis and hyperlipoproteinemia (HLP) remains questionable. The etiology of such a connection has not been properly tested, probably due to inadequate laboratory techniques. Future opportunities for exploring this subject are considerable, both in the laboratory and clinical setting. Possible treatment measures for "HLP-hearing loss" are also reviewed.
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PMID:Is there a relationship between presbycusis and hyperlipoproteinemia? A literature review. 196 Jul 88

The attherosclerosis risk-factors occurrence is studied in the present paper and compared with that of abnormal coronarogram in 376 male subjects. As an abnormal coronarogram is estimated this with at least one of coronaries having more than 50% of lumen obstructed. The abnormal coronarogram occurred significantly with more frequently in male patients with hyperlipoproteinemia an in smokers (p less than 0.001). In a total of male subjects with positive coronarographic findings, the significantly higher averaged levels of total cholesterol (p less than 0.01) have been stated. Authors detected the levels of total cholesterol higher than 6.72 mmol/l and those of triglycerides higher than 1.80 mmol/l are significantly exerting the influence on the value of coronarographic score. Of particular interest is a fact that no significant relation of abnormal coronarogram to the occurrence of systemic hypertension has been detected as well as to the disorders of glycide metabolism and obesity. However, mathematically significant relation has been determined between the smoking and hyperlipoproteinemia (p less than 0.001). The cigarette smoking was stated to enhance hyperlipoproteinemia as 4 %. Smokers have been found to represent pathologically increased both triglyceride and total cholesterol levels. It is to be said that the group of smokers has values of body mass index (BMI) lower ones than the group of non-smokers. Authors also revealed the disorders of glycide metabolism were related with higher occurrence of hyperlipoproteinemia in men as 1-2%. Although no significantly frequent occurrence of glycide metabolic disorders has been proved in men with abnormal coronarogram, the more detailed analysis showed those with glycide metabolic disorders were significantly higher in coronarographic score (p less than 0.05) in contrast with the group compared, and showed significantly higher occurrence of hemodynamically important stenoses than the controls. The results of the present work are believed to enlarge the knowledge about the relations between the atherosclerotic changes, their clinical manifestations and risk-factors estimated in conditions which are completely different from those of routine epidemiological studies. The necessity of primary prevention is confirmed and possible secondary measures are indicated.
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PMID:[Atherosclerosis risk factors in patients examined by coronarography. II. Results and evaluation in the group of men]. 213 Apr 91


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