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Query: UMLS:C0011849 (diabetes)
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Postoperative coronary bypass flow was evaluated in two groups of randomly selected patients with grafts to the left anterior descending artery (LAD). Saphenous vein bypass grafts were placed in 27 patients and internal mammary artery grafts in 25 patients. Postoperative flow studies were performed in both groups with roentgendensitometric methods based on the transit time of radiopaque media along the graft plus the mean graft diameter. There was no significant difference between the two groups of patients for age, duration of symptoms, or the frequency of hypertension, diabetes mellitus, prior myocardial infarction, or cardiomegaly. Intraoperative bypass flows were 75+/-27 and 77+/-24 ml. per minute for the saphenous vein group (SVG) and internal mammary artery group (IMAG), respectively. There was no significant difference in the heart rate or mean aortic pressure at the time of the roentgendensitometric flow study. The mean graft diameters were 3.0+/-0.5 and 1.9+/-0.3 mm. for the SVG and IMAG, respectively (p less than 0.001). The ratios of graft diameter to LAD diameter were 1.9+/-0.3 and 1.2+/-0.2 for the SVG and IMAG, respectively (p less than 0.001). The roentgendensitometric postoperative flows were 68+/-27 ml. per minute in the SVG and 46+/-16 ml. per minute in the IMAG (p less than 0.01). The present study indicates that flow in significantly higher in saphenous vein than in internal mammary artery bypasses and that the difference in flow may in part be explained on the basis of the graft diameter.
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PMID:Comparative study of the postoperative flow in the saphenous vein and internal mammary artery bypass grafts. 1 96

Arteriosclerosis is caused by many factors. These pathogenic factors especially over-nutrition, nicotinabusus, deficiency of muscular exercise, muscular overstrain, emotional stress and concomitant basic diseases, especially arterial hypertension, diabetes mellitus and dyslipidemia are the most important points for preventive and therapeutical action. When possible the risk factors has to be eliminated, arterial hypertension, diabetes mellitus and dyslipidemia have to be treated orderly. In the pathogenesis of arteriosclerosis and atherosclerosis are known disturbances of the lipid metabolism, the blood coagulation and the metabolism of the arterial wall cells most important. Application of anticoagulants and lipid lowering medicaments did not come up to our expectations. Experiences with animal models and a double blind study (secondary prevention of myocardial infarction) have given good reason for recommending antirheumatic or as we like to say, mesenchyme suppressive drugs.
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PMID:[Prevention and therapy of arteriosclerosis (author's transl)]. 3 60

The following clinical groups of volunteers were studied: patients long after recovery from myocardial infarction (MI), others after recovery from deep vein thrombosis (DVT), patients with intermittent claudication, with diabetes, and male and female controls who were well matched. All were subjected to many platelet and clotting tests together with clinical, biochemical and haematological measurements in an attempt to find long term abnormalities in these various diseases. The male MIs differed very significantly from the controls in having much more heparin neutralizing activity (P less than 0.001)and less anti-thrombin (P less than 0.01). Less significantly, some bleeding time tests indicated less bleeding and the patients' platelets were larger. The females with MI had in general the same abnormalities but to a lesser degree. The patients with intermittent claudication, none of whom had a history of MI, had almost the same abnormalities and to the same degree. In deep vein thrombosis the heparin neutralizing activity was also clearly increased; the other tests were generally in the same direction but many were not significant. The diabetics had shorter bleeding times but little else abnormal relative to the controls, suggesting a different pathological process. When all male patients and controls were "scored" according to the degree of atherosclerosis there was a close overall correlation between the degree of atherosclerosis and the increase in the HNA level (r = --0.50, n = 66, P less than 0.001) and the decreased anti-thrombin (r = 0.25, n = 66, P less than 0.05).
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PMID:Blood changes in atherosclerosis and long after myocardial infarction and venous thrombosis. 5 92

From June, 1960, to January, 1976, 157 patients 65 years or older had elective operations with cardiopulmonary bypass. Ninety-three patients had one or two valves replaced, 47 had coronary artery surgery, and 17 had both. The operative mortality rate was 22.6 percent (21 of 93), 19.1 percent (nine of 47), and 5.8 percent (one of 17), respectively. The over-all mortality rate was 19.7 percent (31 of 157). The mortality rate of patients of 65 to 69 years of age was 20 percent (22 of 110) and 19 percent (9 of 47) in patients 70 years or more. Ninety-four of these operations were performed within the last 3 years, with a reduction in patients' mortality rate to 9.6 percent (nine of 94). A retrospective study revealed a significant correlation between operative mortality rate and preoperative heart size. We could find no correlation between operative mortality rate and diabetes, smoking history, or hyperlipidemia. The major causes of death were myocardial infarction (68 percent-21 of 31), pulmonary complications (35 percent-11 of 31), infections (29 percent-nine of 31), and renal failure (29 percent-nine of 31) or combinations thereof. The patients who died had 2.5 times the number of complications of the survivors. Ninety percent of our patients in the past 3 years have survived their operation. Therefore, elective cardiac operations can be performed with an acceptable mortality rate in patients over the age of 65 years.
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PMID:Cardiac surgery in geriatric patients. 13 63

Comprehensive ascertainment of all possible new cases of stroke appearing between January 1, 1970 and June 30, 1971, and admitted to three major hospitals in Winnipeg, Manitoba, has been achieved by reviewing the Manitoba Health Services Commission claim reports. The medical records of these cases were reviewed, pertinent data were abstracted, and rigid criteria for diagnosis were followed. Also, data were obtained from death certificates, autopsy reports and long-term hospital records. A total of 606 ascertained cases (410 infarction, 137 hemorrhage, and 59 undetermined type) were matched for age, sex, residence and year of admission with 606 controls from admissions for other than cardiovascular and cerebrovascular disorders. The data were analyzed for elucidating the possible risk factors for infarction (INF) and hemorrhage (HGE). The findings suggested that hypertension was the main risk factor in hemorrhage, whereas in infarction, along with hypertension, other factors such as diabetes, heart enlargement in chest x-ray, ECG abnormalities, and smoking were suggested as risk factors. There was an association also between infarction, on one hand, and the history of receiving anticoagulants, diuretics, and medications for the heart, and the occurrence of myocardial infarction, on the other hand. These features indicate that infarction and ischemic heart disease have similar risk factors. Hemoglobin and hematocrit were higher in infarction cases than in their controls only when measured at stroke admission. No difference was revealed when they were measured prior to stroke. Their association with infraction therefore may be secondary to other factors and of no significance for its risk.
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PMID:Relative role of factors associated with cerebral infarction and cerebral hemorrhage. A matched pair case-control study. 13 18

The achillean reflexogram has been recorded according to Gilson's photo-electric technique among two male populations during routine cardio-vascular screening. The first population concerns 706 men aged 21 to 55 and the second one 4 437 subjects aged 46 to 52. The frequency of bilateral areflexy increases with age (from 3% before 30 to 6% after 40); it is significantly associated with the presence of angina pectoris. However, no relation is observed with diabetes or clinical suspicion of myocardial infarction. Whereas fat body mass is positively associated with the reflex duration the latter is reduced with heart rate, systolic blooc pressure and number of blood erythrocytes and leucocytes increased. These results and the interest of systematic reflexogram recording during health check up are discussed.
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PMID:[Achillean reflexogram : its measurement and its correlations with various clinical and biological factors in 2 working male populations]. 17 Jun 86

Data obtained from two multipurpose surveys of hospitalized patients were examined to determine the risk of nonfatal acute myocardial infarction in post-menopausal women 40 to 75 years of age in relation to use of estrogen-containing drugs. Eight (2.4 per cent) of 336 myocardial infarction patients and 330 (4.9 per cent) of 6730 reference patients were regular estrogen users (crude rate ratio, 0.47) at the time of hospitalization. After control for confounding variables -- among them, age, past history of myocardial in farction, angina, diabetes, and hypertension (alone or in combination) and cigarette smoking -- the summary point estimate of rate ratio was 0.97 with 95 per cent confidence limits of 0.48 and 1.95. Thus, there was no evidence of a statistically significant association between current regular use of estrogens and nonfatal acute myocardial infarction.
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PMID:Myocardial infarction and estrogen therapy in post-menopausal women. 17 69

The families of 13 children who had presented hyperlipoproteinemia at birth were studied. Total cholesterol, LDL cholesterol, triglycerides and electrophoresis of LP were performed. The parameters studied were divided in three groups: a) Inespecific indicators (alpha-LP, betas/alphas relation). b) Indicators of the beta-LP group (total and LDL cholesterol and beta-LP). c) Indicators of the prebeta-LP group (TG, prebeta-LP and prebeta-1). In all cases at least one of the parents had hyperlipoproteinemia. All the parents, but one, showed alterations in the same group of indicators as their children. Obesity, diabetes mellitus, arterial hypertension, coronary insufficiency, myocardial infarction and cerebrovascular accident where observed in the families of the hiperlipidemic parents, but not on those of the normolipemic parents.
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PMID:[Hyperlipoproteinemia in children. Correlation between changes in the parents and newborn infant]. 18 99

Fifteen patients who had had a myocardial infarction before the age of 43 were compared with thirteen age-matched normal subjects. Twelve of the patients and three of the controls had a delayed glucose and insulin peak in the glucose and insulin areas than normal curves. When the measurements of the four patients with the largest areas under the glucose tolerance curve were separated, significant correlations were observed in the remaining patients and controls. The ratio in serum of the concentrations of estradiol-17beta to testosterone (E/T) correlated with serum glucose area (r equals + 0.69, P is less than 0.001), insulin area (r equals + 0.80, P is less than 0.001), and the ratio of insulin area to glucose area (I/G) (r equals + 0.64, P is less than 0.005) in the glucose tolerance test. Serum cholesterol concentration correlated with E/T, insulin area, and I/G, and serum triglyceride concentration correlated with glucose area, I/G, and serum cholesterol concentration. The hypothesis is presented (i) that in men who have had a myocardial infarction, an abnormality in glucose tolerance and insulin response and elevation in serum cholesterol and triglyceride concentrations are all part of the same defect (glucose-insulin-lipid defect), (ii) that this glucose-insulin-lipid defect when glucose intolerance is present is the "mild diabetes" commonly associated with myocardial infarction but is based on a mechanism different from that of classical diabetes, (iii) that this glucose-insulin-lipid defect is secondary to an elevation in E/T, and (iv) that an alteration in the sex hormone milieu is the major predisposing factor for myocardial infarction.
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PMID:Relationship between serum sex hormones and glucose, insulin and lipid abnormalities in men with myocardial infarction. 19 14

Using univariate and multivariate analyses, the association between high density lipoprotein (HDL) cholesterol and coronary heart disease (CHD) incidence was investigated. Over 150 cases of myocardial infarction (MI) occurred among 6500 Israeli adult males in a five-year prospective study. At age 50 years and over, there is a significant inverse association between MI incidence and HDL cholesterol. This relationship persists when controlling for risk factors such as age, other cholesterol components, smoking, blood pressure, weight, and diabetes mellitus. Unlike hypercholesterolemia and smoking, the relative risk with HDL cholesterol increases with age above 50. Similar patterns of association occur between HDL cholesterol and angina pectoris incidence, sudden unexpected death and deaths from MI. It is suggested that HDL cholesterol is an independent risk factor for CHD, especially in males over 50, and the implication of this study is that increased HDL cholesterol might play a protective role in the pathogenesis of CHD.
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PMID:High density lipoprotein cholesterol and incidence of coronary heart disease--the Israeli Ischemic Heart Disease Study. 22 35


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