Anciano y anemia: revisión crítica de su definición y prevalencia

Background and objectivesThe prevalence of anaemia is an important health indicator, although there is little rigorous information gathered on the elderly population, particularly in those over 80 years old. The same criteria that are used in the general population are often used to define anaemia in the elderly. The epidemiological data collected by the WHO in 1968 (that have been used to generalise this criteria), did not include the population over 65 years-old.Two objectives are established, which includes a critical review of the available evidence on whether the criteria used to define anaemia in the adult population can be extrapolated to the elderly, and a review of publications on the prevalence of anaemia in the elderly over 80 years-old.Material and methodsA systematic bibliographic search was performed on the established objectives.ResultsAlthough the WHO criteria, based on data from 1968, are widely used, other possible cut-off points have been proposed for elderly people. A total of 20 studies were found that were conducted in North America and Europe, with only 70,000 patients, and different age criteria. The prevalence of anaemia ranges between 3% and 63%, depending on the diagnostic criteria, age, and whether they were institutionalised or not.ConclusionsAnaemia is a very prevalent disease in elderly patients. The collection of large databases is necessary to determine more adequate diagnostic criteria.     

Hospital costs associated with delirium in older medical patients

Introduction

Delirium is a common and serious complication in older patients, associated with increased, potentially preventable, morbidity and mortality. The aim of this study was to evaluate the associated costs of delirium during hospitalization in a university affiliated hospital in Chile.

Materials and methods

Prospective cohort study of consecutive patients 65 years and older, admitted to a medical ward. A psychogeriatric team assessed patients during the first and every 48 h until discharge using the Confusion Assessment Method (CAM-S), length of hospital stay, pharmacy and total hospitalization costs were analyzed. Statistical analysis was performed using bivariate and multivariate analysis according to delirium diagnosis.

Results

Data from 454 patients was analyzed, 160 of them in a delirium cohort (35.2%) and 294 in a non-delirium cohort (64.8%). The delirium cohort had a longer hospital stay (DATA) and higher mortality (7.0% versus 1.7%). The median of total costs of delirium during hospital stay was 38.7% higher than the non-delirium cohort (P < .001). Total costs were significantly higher in the delirium cohort after adjustment of covariables (P = .01).

Conclusions

This study confirms that delirium is associated with significantly greater costs. Considering that effective delirium prevention is possible, the knowledge of associated costs can help health care providers to justify prevention strategies and finally give better care for older patients.     

Tratamiento de la diabetes mellitus tipo 2 en el paciente anciano

The prevalence of type 2 diabetes mellitus (DM2) increases markedly with age. Antidiabetic treatment and the objectives of glycaemic control in elderly patients with DM2 should be individualised according to their biopsychosocial characteristics. In elderly patients for whom the benefits of intensive antidiabetic treatment are limited, the basic objectives should be to improve the quality of life, preserve functionality and avoid adverse effects, especially hypoglycaemia.Treatment of DM2 in the elderly was the subject of a consensus document published in 2012 and endorsed by several Spanish scientific societies. Since then, new therapeutic groups and evidence have emerged that warrant an update to this consensus document. The present document focuses on the therapeutic aspects of DM2 in elderly patients, understood as being older than 75 years or frail.     

Políticas de salud pública aplicadas al adulto mayor en Colombia

A literature review was performed on the laws passed, and adopted in accordance with international regulations, in Colombia and which currently benefit or affect the quality of life of the elderly. Public policies in Colombia are inclined towards the well-being of the elderly, but this documental analysis concludes that the elderly Colombian is unprotected and defenceless against the obstacles and difficult situations due to the biological, political, social, economic and environmental conditions. This makes them vulnerable as it is a scheme that only benefits in cases of poverty and by being a member of the General Social Security in Health system, with transfer of obligations to the family, society and likewise the elderly.     

Elaboración de una herramienta para la estimación del riesgo de mortalidad a corto y medio plazo tras el alta de una Unidad de Hospitalización de Agudos de Geriatría

Objectives

To identify predictive factors for 6 and 12-months mortality after discharge from a geriatric acute care unit, and from these, derive a mortality-risk index.

Methods and analysis

Prospective cohort study will be conducted on patients over 70 years-old admitted to a geriatric acute care unit and survived to hospital discharge. The main outcome measure will be mortality at 6 months and 12 months after discharge. Independent variables include sociodemographics, functional status, comorbidities, and clinical and laboratory characteristics. Risk factors associated with mortality will be constructed using multivariate logistic regression models. To build the mortality index, points will be assigned to each risk factor by dividing each beta coefficient in the logistic model by the lowest beta coefficient. A score will be assigned to each subject by adding up the points for each risk factor present in the model. The predictive accuracy of the model will be determined by comparing the predicted versus observed mortality in the study population and calculating the area under the ROC curves in both populations.

Conclusions

The risk-mortality index developed would allow an easy estimate to be made of individual risk of death at 6 months and 12 months after discharge from a geriatric acute care unit, with the purpose of establishing care plans and individualising treatment, according to real objectives.     

Experiencia con el uso del registrador implantable de eventos en una serie de personas mayores con caídas y sospecha de síncopes de origen arrítmico

Objective

To review our experience on using an implantable loop recorder (ILR) in patients with recurrent falls, when an arrhythmogenic cause is suspected.

Material and methods

This is a retrospective, observational study of patients with repetitive unexplained falls, suspected syncope, or electrocardiographic abnormalities. All of them had been evaluated by a cardiologist, who decided to implant a loop recorder (ILR) for an accurate diagnosis.

Results

A total of 13 patients received an ILR. The average falls rate for the sample was 3.3. The mean age was 78 years, and 46% were female, with a mean follow-up period of 24 months. During this time, three patients did not suffer from a new fall. An arrhythmogenic diagnosis was obtained in 5 patients: bradycardia was identified in 4 cases, and tachycardia in one of them. The symptoms did not coincide with a documented arrhythmia in the rest of the patients.

Conclusion

ILR is a helpful tool to establish an arrhythmogenic cause of unexplained and recurrent falls, in this selected sample of older adults.     

Déficit de vitamina D en una cohorte de mayores de 65 años: prevalencia y asociación con factores sociodemográficos y de salud

Introduction

Vitamin D deficiency is common in the elderly, especially among institutionalized and/or hip fracture patients. However, there are few population studies on the prevalence of this deficiency in the general population over 64 years in our environment. The aim of this study was to determine the prevalence of vitamin D deficiency in an urban population cohort of over 64 years, and analyze its relationship with sociodemographic, climatic, and health factors.

Material and methods

Cross-sectional study from «Peñagrande cohort», a population-based cohort consisting of people over 64 years. We determined 25-hydroxyvitamin D levels, and recorded sociodemographic data (age, sex, marital status, education, socioeconomic status), season of measurement and health variables (comorbidity, obesity, malnutrition, renal failure, cognitive impairment, vitamin D supplements, and disability).

Results

A total of 468 individuals with a mean age of 76.0 years (SD: 7.7) were included, of which 53.4% were women. The mean value of vitamin D was 20.3 ± 11.7 ng/mL. The large majority (86.3%, 95% CI: 83.0-89.5) had a vitamin insufficiency (≤ 30 ng/ml), and 35.2% (95% CI: 30.8-39.7) showed severe vitamin deficiency (≤ 15 ng/ml). Vitamin insufficiency increases linearly with age (OR 1.06; 95% CI: 1.01-1.11), and was associated with low socioeconomic status (OR 3.29; 95% CI: 1.55-6.95). Severe vitamin D deficiency increases with age (OR 1.06; 95% CI: 1.02-1.09), female gender (OR 1.80; 95% CI: 1.18-2.75) and with cognitive impairment (OR 1.71; 95% CI: 1.04-2.83).

Conclusion

The prevalence of vitamin D deficiency in people over 65 years of age in our community is high. It would be advisable to determine the vitamin D values in the high risk elderly in order to introduce measures of pharmacological supplementation in those with inadequate levels.     

Diarrea asociada a Clostridium difficile en el anciano: nuevas perspectivas

Infection due to Clostridium difficile is currently the main cause of hospital acquired gastrointestinal disease. Its prevalence in the elderly population is higher due to there being many associated risk factors in this age group, such as comorbidity, frequent exposure to the healthcare or residential home setting, immunosenescence, greater consumption of antibiotics, and antiacids. The diagnostic techniques have notably improved in the last few years, which could also account for an increase in its diagnosis. The new expert consensus recommendations propose stratifying the clinical situation of the patient in order to choose the treatment option. Therapeutic options have recently been included in the new Clinical Guidelines, such as flidaxomicin or fecal transplants, with encouraging results, particularly for the control of frequent recurrences.