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As part of an epidemiologic cross-sectional study to determine cardiovascular (CV) risk factors in the population (total serum cholesterol, smoking, blood pressure, and body weight) hemoglobin (Hb) and plasma viscosity (PV) were measured. A two-stage cluster sample of 5,312 persons, aged twenty-five to sixty-four (available 5,069) was selected from a mixed urban-rural target population of 282,279 inhabitants, from which 4,022 (79.3%) participated in the study. Patients with chronic myocardial infarction (MI), cerebral infarction (CI), angina pectoris (AP), and peripheral arterial disease (PAD) were identified by questionnaire. The results show that there is no age or sex dependency of PV in healthy participants, while hemoglobin shows the well-known sex difference. In contrast, PV increases continuously with age in the total population. In men, increased PV is found in untreated hypertension, in hypercholesterolemia, and in smokers. In women, it is raised in hypercholesterolemia and in gross obesity. Male MI patients and patients of both sexes after CI in particular show statistically significantly elevated PV. Finally, in male patients with chronic AP or patients of both sexes with PAD, PV is elevated and a tendency to higher Hb values is seen. These results confirm smaller clinical trials suggesting that blood fluidity is pathologically altered in patients with CV risk factors or diseases. Since impaired blood fluidity may worsen the hemodynamic situation, in particular in patients with limited vasomotor reserve, hemorheologic parameters may be of prognostic relevance. Therapeutic implications of these findings should be considered.
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PMID:Blood rheology associated with cardiovascular risk factors and chronic cardiovascular diseases: results of an epidemiologic cross-sectional study. 326 66

Men who do not drink are frequently used as a baseline against which the effects of alcohol consumption are measured. The characteristics of such men have been examined in a large-scale prospective study of cardiovascular disease involving 7735 middle-aged men drawn from general practices in 24 British towns. Non-drinkers include lifelong teetotallers and ex-drinkers, both long-term and recent. Long-term ex-drinkers have many characteristics likely to increase their morbidity and mortality; recent ex-drinkers have similar characteristics but to a less marked degree. Ex-drinkers are older than the other groups and include an increased proportion of unmarried men and men in manual occupations. They have the same high percentage of current cigarette smokers as moderate/heavy drinkers and a prevalence of hypertension and obesity similar to moderate/heavy drinkers and higher than lifelong teetotallers or occasional/light drinkers. Ex-drinkers have the highest percentage of men with multiple doctor-diagnosed disorders. In particular, they have the highest prevalence rates of angina and possible myocardial infarction on standardized questionnaire, of myocardial infarction on electrocardiogram and of recall of a doctor-diagnosis of ischaemic heart disease. They also have high prevalence rates of recall of high blood pressure, peptic ulcer, diabetes, gall bladder disease and bronchitis. They have the highest rates for regular medical treatment and the highest proportion of men who consider their health to be poor. It is abundantly clear that the general category of non-drinkers, which includes a large proportion of ex-drinkers, should not be used as a baseline against which to measure the effects of alcohol consumption. Overall, it would appear that the occasional/light drinking category (less than 15 drinks/week) provides a large and satisfactory baseline group for comparative purposes in the study of cardiovascular and other organic disorders.
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PMID:Men who do not drink: a report from the British Regional Heart Study. 340 25

We report the association between hostility and the incidence of ischemic heart disease (IHD) in 3,750 Finnish men aged 40-59. Hostility was assessed from self-ratings on irritability, ease of anger-arousal, and argumentativeness, and four groups were formed from the summed hostility ratings. At baseline, the age-adjusted relative risk (RR) of the prevalence of angina pectoris between the highest and lowest hostility groups was 2.88 (95% confidence limits (CL), range 1.71-4.77). A three-year follow-up yielded 65 deaths and 109 IHD-incident cases. Hostility did not predict IHD among healthy men, but among men with previous IHD and hypertension (N = 104), the age-adjusted RR of IHD between the highest and lowest hostility groups was 12.9 (95% CL, 3.92-42.6). After standardization for smoking, obesity, heavy alcohol use, and snoring, the RR was 14.6 (95% CL, 1.94-110). When the degree of dyspnea at baseline was also standardized, the RR was 21.1 (95% CL, 1.59-282). Our data suggest that extreme hostility is not a consequence of symptom severity; rather, hostility is a strong determinant of coronary attack among hypertensive men with IHD.
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PMID:Hostility as a risk factor for mortality and ischemic heart disease in men. 341 67

Risk factors for myocardial infarction, sudden coronary death, angina pectoris, stroke and total mortality were analysed in a random population sample of men aged 47-55 years at entry, and followed for 11.8 years. Lipid disturbances, tobacco smoking, elevated blood pressure, diabetes mellitus, obesity, low physical leisure-time activity, psychological stress (for non-fatal events) and excessive alcohol consumption (for fatal events) were the main independent risk factors for coronary heart disease. The attributable risk was also calculated. Uncomplicated angina pectoris was related to dyspnoea during exertion, psychological stress, diabetes mellitus and high relative body weight. Stroke was dependent on elevated blood pressure, tobacco smoking and psychological stress. Quantitatively, the most important risk factors for total mortality were low physical activity during leisure time, tobacco smoking and elevated blood pressure. For patients who had suffered myocardial infarction or angina pectoris, elevated serum cholesterol, elevated blood pressure and tobacco smoking were of prognostic importance. Hypertension, together with lipid disturbances and tobacco smoking, was thus found to be a risk factor both for primary and secondary events, and blood pressure control seems of great importance in preventing these cardiovascular events.
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PMID:Primary and secondary prevention. 347 30

Risk factors related to increased mortality were determined on the basis of 329 aortocoronary bypass operations. They were: (1) emergency surgery, (2) poor left ventricular function, (3) reoperation, and (4) pulmonary hypertension. Angina pectoris, recent myocardial infarction, age over 65 years, obesity, significant systemic disturbances, smoking, arterial hypertension, and sex were without effect.
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PMID:[The relation between risk factors and mortality in aortocoronary bypass operations]. 348 57

The preoperative profiles of a predominately non-white group of patients undergoing coronary artery bypass grafting were reviewed. Data were obtained from a retrospective analysis of medical records of 163 patients operated on at Howard University Hospital between July 1983 and July 1986. The analysis was carried out primarily to determine whether patients requiring myocardial revascularization were somehow different from their non-black counterparts. Ninety-one percent of the patients were black, 5 percent white, 0.5 percent Hispanic, and 3.5 percent others (Iranian, Filipino, etc).The study was not designed to review the prevalence of coronary disease in blacks, or to determine the natural history following coronary artery bypass grafting, but to determine whether those with established coronary disease of such a severity as to warrant revascularization had the usual clustering of risk factors. Patient records were reviewed to determine the prevalence of hypertension, diabetes, obesity, cigarette smoking, previous myocardial injury, and total serum cholesterol. Because of the well-recognized increased incidence of hypertension in black patients, and its role as a major risk factor in coronary heart disease, the sequelae of hypertension were considered in relation to results of surgical therapy.The study population included 93 men (57 percent) and 70 women (43 percent); mean age was 59 years (fourth to ninth decade). Seventy-four percent of the patients were hypertensive, 35 percent were diabetic, and 77 percent had a smoking history. Obesity was prevalent among the female patients in general, with 36 percent of the diabetics and 21 percent of the nondiabetics being greater than 50 percent over ideal body weight. Ninety percent of the female patients and 80 percent of the male patients presented with New York Heart Association class III or IV angina. Left ventricular function was, on the average, well preserved. The immediate surgical mortality (following exclusion of patients in extremis) was 4 percent. The surgical mortalities were related to easily identifiable factors. Peri-operative infarctions were profoundly influenced by the presence of diabetes.Although this group was distinguished from most reported groups of patients undergoing aortocoronary bypass grafting by the presence of advanced age, the large percentage of women and diabetics and the marked prevalence of hypertension, and the usual risk factors for coronary artery disease reported in the majority population, the study reconfirms previous epidemiologic findings. It appears that racial "clumping" of a heterogeneous non-white population has minimal usefulness, except as it may be related to socioeconomic status and access to quality health care.
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PMID:Coronary artery bypass grafting in a predominately black group of patients. 349 81

In order to determine the predictors of operative risk in coronary bypass surgery, we have studied 2112 consecutive patients who underwent isolated coronary bypass surgery between January 1979 and September 1984. The overall operative mortality (OM) was 4.4 percent (3.5 percent during the last 3 years). OM increases significantly with age (from O before the age of 30 to 12.3 percent after 70), the functional class (FC) of angina, the FC of dyspnea (NYHA), the creatinine blood level (23.5 percent if greater than 200 mumol/l), the left ventricular end-diastolic pressure and in case of reoperation (16.7 percent), as well as in women (11.6 percent). There is a trend toward higher OM in case of past history of ventricular tachycardia or arterial hypertension, atherosclerotic disease of the lower extremities, left ventricular dysfunction or severe stenosis of the left main coronary artery. OM is not increased in patients with multivessel disease, diabetes or with a past history of myocardial infarction, and is even decreased in obese patients. The variables selected by multivariate analysis were: creatinine blood level, then angina FC, sex, dyspnea FC, age, the absence os obesity, left ventricular dysfunction, the year of surgery and finally reoperation. These results, mainly based on simple clinical variables, should facilitate the therapeutic decisions in borderline indications of coronary bypass surgery.
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PMID:[Operative risk in coronary bypass. A multivariate analysis of prognostic factors]. 349 3

More than 30 million Americans are disabled. Wide experience has shown that these conditions do not prevent these individuals from becoming proficient in the knowledge and skills of CPR. Instructional materials and methods can be modified to help this special population learn CPR despite handicaps. The American Heart Association has supported these special efforts since 1978, but no comprehensive resource exists for CPR instructors interested in helping the "physically challenged" individual learn CPR. This article addresses general and specific suggestions for teaching selected handicapped populations. They are: hearing impaired, visually impaired, other physical impairment such as obesity, chronic obstructive pulmonary disease, arthritis, angina, and other medical conditions that may limit one's ability to learn the psychomotor skill of CPR.
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PMID:Teaching and credentialing the physically challenged: state of the art. A review of change in the clinical and scientific data since 1980. 353 65

This study was designed to compare the prevalence of obesity, high blood pressure, diabetic vascular disease, and risk factors in Black West Indians who had emigrated to Britain (WIB) with those in Whites in England and among diabetic Jamaicans in Jamaica. Seventy-seven consecutive WIB patients were matched for age, sex, known duration of diabetes, and type of treatment of diabetes with 74 Whites from the same diabetes clinic in England. In Jamaica, a systematic random sample (95 women, 36 men) was studied. There was no difference in age at diagnosis between WIBs and Jamaicans. Effort chest pain (possible angina) was less frequent in WIBs (9%) or Jamaicans (3%) than in Whites (25%). Cigarette smoking was more common in WIBs than in Whites but still low in Jamaicans. Body mass index was greatest in WIB women (85%), significantly more than in matched White (52%) or Jamaican women (45%); 40% of White men and WIB men were obese, significantly more than Jamaicans (15% obese). Systolic blood pressure was similar, but diastolic blood pressure was significantly greater in WIBs than in matched White subjects. The prevalence of casual hypertension was high (greater than 40%) in all groups, often despite treatment. Cataracts were significantly more frequent in WIB and Jamaican groups than in Whites. Total background retinopathy after correcting for duration of diabetes did not differ between groups, and there were no significant differences in other complication rates. Levels of HbA1 were lower in Whites than in the other groups. Regression analysis showed that systolic blood pressure was most consistently related to complications, particularly retinopathy, independent of ethnic group and duration.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Black West Indian and matched white diabetics in Britain compared with diabetics in Jamaica: body mass, blood pressure, and vascular disease. 358 77

In Japan, the age-adjusted death rate from ischemic heart disease has decreased for both male and female since 1970, although the rate appears to be slightly affected by mortality from senility without mention of psychosis, "cardiac insufficiency", and sudden death in elderly persons. On the other hand, consultation rate has shown an increase, suggesting an increase in the number of recovered patients and a lengthening in the duration of ischemic heart disease from onset to termination by CCU treatment. A 7.5-year prospective study of ischemic heart disease (myocardial infarction + angina pectoris on effort + sudden death) among residents 40 years and older was conducted at a rural community, Akadani-Ijimino district in Niigata Prefecture. Statistically significant risk factors appeared to be age, hypertension, ECG abnormalities and fuduscopic changes. Even in 1977-1984 when Japanese dietary habits were westernized, neither hyperlipidemia nor obesity was related to the development of ischemic heart disease in this agricultural district. Statistically significant risk ratios were not observed for any nutrient or food, although the ratio for animal fat, calcium, salted vegetables and caloric percent of animal protein was more than one respectively.
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PMID:Trends in death and consultation rates of ischemic heart disease in Japan and the risk factors in a rural community. 359 72


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