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The mortality rate and causes of death after a hip fracture were studied in 493 consecutive patients with a hip fracture. All patients were treated in three hospitals in Utrecht, The Netherlands. The mortality rate following hip fractures is high and age dependent. Forty-five patients, 38 women and 7 men, died during the period of hospitalization (9.1%). One year after the date of hip fracture 23.6% of the women had died and 33.0% of the men. Four years after the date of hip fracture the mortality rates in women and men were 44.4% and 55.3%, respectively. Male sex, concomitant illnesses and in-hospital complications are negative determinants of survival. The in-hospital mortality was due to: cerebrovascular accident (n = 7), cardiac decompensation (n = 12), myocardial infarction (n = 4), pulmonary infection (n = 6), intestinal bleeding (n = 1) and sepsis (n = 5). From the registration of death causes we learned that 54 deaths were directly due to the hip fracture, 4 due to bed sores, 34 due to infectious diseases, 62 due to cardiovascular disease, 22 due to cerebrovascular accidents, 14 due to diabetes mellitus, and 33 due to neoplasm. The high mortality rate within the first 8 weeks after the date of hip fracture was mainly attributed to the hip fracture.
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PMID:Mortality and causes of death after hip fractures in The Netherlands. 140 39

Despite some evidence that neuroleptic medication is overused or misused in long-term care facilities for the elderly, there has been virtually no attention paid to the pattern of use of antidepressants in these facilities. All patients in long-term care in a geriatric hospital and a home for the aged who were receiving antidepressants were identified; 10.5% of the patients in the hospital and 12.7% in the home for the aged were receiving an antidepressant. The rate of use of antidepressants on the different units ranged from 0% to 26.8%. The most commonly prescribed antidepressant was doxepin followed by nortriptyline. The mean dose of antidepressant was 34.8 mg. Although depression was the most common reason for the prescription of an antidepressant (69% of patients receiving one), other reasons included pain, agitation, aggression, and insomnia. Patients had been receiving antidepressants for up to 10 years, with a mean duration of 32 months. The majority of patients (60%) had a history of depression predating their institutional admission. Patients receiving antidepressants were compared to a group not receiving antidepressants, who were matched for age, sex, unit, and attending physician. Patients receiving antidepressants were more likely to have a history of stroke (33.8% versus 16.9%). There was no significant difference between the two groups regarding the prevalence of dementia, Parkinson's disease, thyroid disease, malignant tumor, congestive heart failure, or diabetes mellitus. Prospective studies are required to determine the efficacy of antidepressants in this population and to identify factors that can predict a positive response to treatment.
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PMID:Pattern of use of antidepressants in long-term care facilities for the elderly. 141 68

Analysis of the available evidence indicates that diuretics do not increase coronary heart disease morbidity and mortality. The multiclinic trials supporting the cardiotoxicity hypothesis are few in number and flawed in design. The majority of the trials, including the well designed trials, indicate no excess of coronary heart disease (CHD) events in diuretic-treated patients compared with those given other drugs or placebo. Recent studies indicate no increase in cardiac arrhythmias after diuretic treatment. Also, although depletion of intracellular potassium and magnesium occurs in patients with congestive heart failure even without diuretics, intracellular concentration of these ions is not significantly reduced by diuretics in patients with uncomplicated hypertension. Modest elevations of serum cholesterol may occur during the first 6 to 12 months of treatment with thiazide diuretics. However, after this time these elevations fall to or below the pretreatment level. The fall may be greater in patients receiving other drugs but the differences are small and their clinical significance is questionable. The incidences of hyperglycaemia and diabetes were only minimally increased in long term clinical trials while the importance of hyperinsulinism and insulin resistance in causing CHD remains unproven in patients. Thiazides remain, therefore, a safe and effective treatment for patients with hypertension.
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PMID:Adverse effects of diuretics. 141 93

Magnesium deficiency is common but difficult to diagnose and to assess in clinical practice. The use of a magnesium loading test was therefore evaluated to diagnose magnesium deficiency in 661 hospitalized patients with medical conditions assumed to interfere with magnesium uptake and excretion. Thirty millimoles of magnesium sulphate were administered intravenously during 8 h as a loading test and related to the urinary excretion in the following 24 h. A group of 30 patients without any known predisposition for magnesium deficiency and a group of 27 healthy volunteers served as controls. The mean (with 95% confidence interval) magnesium retention was 4 (-2-10)% in the control group of patients and 3 (-2-8)% in healthy subjects. A significantly higher retention was observed in all the groups of the patients: atrial fibrillation 18 (11-25)%, other arrhythmias 18 (11-24)%, hypertension 27 (20-33)%, coronary artery disease 25 (20-30)%, congestive heart failure 31 (26-37)%, cerebrovascular events 38 (24-51)%, gastrointestinal disorders 22 (14-29)%, diabetes mellitus 16 (9-22)%, and alcoholics 33 (29-36)%. The percentage of patients with a retention greater than mean + 2 SD of the two control groups varied between 22% and 54% among the different patient groups. The mean serum magnesium among the patient groups was similar to the control group of patients, except for the alcoholics, hypertensives and young healthy controls, who had significantly reduced levels. Magnesium retention was significantly correlated to age and renal function, and among the alcoholics negatively correlated to serum magnesium.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Magnesium deficiency diagnosed by an intravenous loading test. 143 10

The percent distribution of selected comorbid conditions from a national sample of 3,399 Medicare patients starting maintenance hemodialysis in 1986-87 is described. Using the Cox proportional hazards model, the relative mortality risk (RR) was assessed for comorbid conditions at time of ESRD while adjusting for the other comorbid and demographic covariates. Coronary artery disease and congestive heart failure, each present in 41 percent of patients, were associated with RR of 1.22 and 1.26 respectively (p < 0.0005 each). Fifty percent of patients had a serum albumin concentration at onset of ESRD of less than 3.5 gm/dl, and an increased risk of dying. Additionally, patients recorded as undernourished had an elevated risk (RR = 1.34, without adjustment for serum albumin, p < 0.0001). Other factors associated with a statistically significant increased mortality risk (p < 0.005) included older age, diabetes as cause of ESRD (particularly if insulin dependent), history of neoplasm, active smoker, and relatively low serum creatinine concentration. By describing the magnitude of risk associated with comorbid conditions, this study emphasizes the need for preventive efforts during the pre-ESRD stages of renal impairment. Studies are needed to document whether improvement in serum albumin or other comorbid factors before ESRD leads to reduction in mortality risk for ESRD patients.
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PMID:Comorbid conditions and correlations with mortality risk among 3,399 incident hemodialysis patients. 144 73

Hypertension is a powerful predisposing risk factor for cardiovascular disease at all ages and in both sexes. Epidemiological assessment indicates the largest risk ratios for stroke and congestive heart failure (CHF), but coronary heart disease (CHD) is the most common and most lethal sequela of hypertension. Examination of the risk of cardiovascular sequelae in the hypertensive population indicates that this is not uniform and varies over a 10-fold range, depending on the associated risk factors. Systolic pressure merits greater consideration than the diastole pressure because isolated systolic hypertension is a powerful cardiovascular risk at all ages. Furthermore, recent trials have indicated the benefit of therapy for systolic-based hypertension in the elderly, even using a diuretic, for coronary disease as well as stroke. Persons with hypertension have a high prevalence of associated cardiovascular risk factors, including elevated cholesterol, reduced HDL-C, diabetes, left ventricular hypertrophy (LVH), and obesity. About 9% under the age of 65 years have an associated overt cardiovascular disease; above age 65 about 30% are so afflicted. Each of these risk factors can double the risk associated with hypertension. Because they are so common, a large fraction of the disease sequelae of hypertension is attributable to these associated risk factors. The high risk of coronary disease in hypertensive patients is concentrated in those with a high total/HDL-cholesterol ratio, impaired glucose tolerance, high fibrinogen, ECG abnormalities, and cigarette smokers. Stroke risk in hypertensive persons is concentrated in those with cardiovascular disease, diabetes, atrial fibrillation, LVH and cigarette smoking.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Potency of vascular risk factors as the basis for antihypertensive therapy. 148 3

A consecutive series of 30 patients 75 years of age and older who underwent isolated coronary artery bypass graftings during a 6 year period (from 1985 to 1990) was analyzed. This group was compared with a consecutive series of 512 patients under the age of 75 who underwent the same procedure during the same period. The elderly patients had a higher incidence of unstable angina pectoris, left main or triple vessel disease and depression of ejection fraction. There were no deaths in the hospital or within 30 days of operation (0%), but postoperative complication occurred in 26 cases (86.7%) in the elderly patients. Mean postoperative hospital stay was longer in the elderly patients than the younger ones (21.7 +/- 8.7 days, 18.9 +/- 5.9 days, respectively). The factors frequently noted in the elderly cases with major complications were emergency or urgent operation, history of congestive heart failure and diabetes. The factors associated with prolonged postoperative hospital stay in elderly cases were octogenarians, intraoperative blood transfusion, wound complications, perioperative myocardial infarction, pulmonary failure and low cardiac output state. It is concluded that CABG can be performed safely even in elderly patients by the proper postoperative management, in spite of having increased postoperative complications and resulting in a prolonged postoperative hospital stay.
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PMID:[Morbidity and mortality of coronary artery bypass surgery in patients 75 years of age or older]. 148 30

Cigarette smoking is the most preventable cause of cardiovascular morbidity and mortality. Smoking has been associated with a two-to fourfold increased risk of coronary heart disease, a greater than 70% excess rate of death from coronary heart disease, and an elevated risk of sudden death. These risks are compounded in the presence of hypertension, hypercholesterolemia, glucose intolerance, and diabetes, all of which exhibit a synergistic effect with smoking. The relationship between smoking and the risk of peripheral vascular disease has also been well documented. Smokers account for approximately 70% of patients with atherosclerosis obliterans and virtually all those with thromboangiitis obliterans. An association between smoking and cerebrovascular disease remains a matter of debate, although a higher risk of stoke and stroke-related mortality has been observed in smokers than in nonsmokers. Smoking has also been implicated in the development of cor pulmonale, but a direct association with congestive heart failure has not been established. Nicotine and carbon monoxide appear to play major roles in the cardiovascular effects of smoking. Both components adversely alter the myocardial oxygen supply/demand ratio and have been shown to produce endothelial injury, leading to the development of atherosclerotic plaque. Adverse effects on the lipid profile have been noted as well, but the relationship between these changes and the risk of cardiovascular disease remains to be confirmed. Notably, smoking cessation results in a dramatic reduction in the risk of mortality from both coronary heart disease and stroke. In light of the fact that the incidence of smoking has declined primarily among educated sectors of the U.S. population, future efforts must focus on providing effective education, including smoking cessation techniques, to the less-educated groups.
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PMID:Smoking and cardiovascular disease. 149 5

It is now well recognized that autonomic dysfunction may occur in disorders affecting the various body systems. Over the past year important observations have been reported in congestive cardiac failure, reflex sympathetic dystrophy (RSD), acquired immune deficiency syndrome (AIDS) and diabetes mellitus.
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PMID:Autonomic involvement in systemic diseases. 151 87

The prognosis of patients with heart disease and prediction of sudden cardiac death can be assessed through heart rate variability, an indirect measure of abnormal autonomic control. The authors have evaluated the heart rate variability by 24-hour ambulatory electrocardiographic monitoring in 25 diabetic patients, 19 ischemic heart disease patients, 18 congestive heart failure patients, and 10 normal subjects. Thirteen diabetic patients had autonomic neuropathy and 12 patients did not. Heart rate variability index (mean SD) in patients with diabetes mellitus, ischemic heart disease, and congestive heart failure was significantly lower (34.5 +/- 12.6 ms, 43.7 +/- 15.4 ms, and 34.6 +/- 15.8 ms vs 65.6 +/- 16.7 ms, p less than 0.05) than that of normal subjects. Mean SD was significantly lower in patients with autonomic neuropathy as compared to patients without autonomic neuropathy (26.4 +/- 6.5 ms vs 44.2 +/- 11.0 ms, p less than 0.05) mean SD as compared to survivors: 49 +/- 7 ms in patients with mild ischemic heart disease, 48 +/- 15 ms in patients with severe ischemic heart disease, and 23 +/- 7 ms in patients who died. Similarly, the mean SD in 4 congestive heart failure patients who died was lower significantly (p less than 0.05) than in those who survived (19.0 +/- 5.6 ms vs 40.0 +/- 14.5 ms). Among congestive heart failure patients, clinical improvement by therapy was associated with a significant increase in mean SD. When the mean SD of 30 ms was used as the cutoff point for detection of autonomic dysfunction or patient death, specificity exceeded 90% and sensitivity was 75%.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Heart rate variability in patients with diabetes mellitus, ischemic heart disease, and congestive heart failure. 152 1


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