Causes of weight loss in a community nursing home

Which are the most efficient items of mini nutritional assessment in multimorbid patients?

OBJECTIVE

The aim of the study was to identify the most significant MNA-items to accelerate the determination of nutritional risk of elderly patients in routine clinical practice in a geriatric hospital. Since MNA requires 10-15 min it is hardly applicable to clinical routine.

DESIGN

The study was a cross-sectional study.

SETTING

The study centre was an acute geriatric hospital.

PARTICIPANTS

In total 808 multimorbid elderly patients were recruited.

METHODS

We applied the MNA in 808 (528 f/280 m) geriatric multimorbid patients (78.5+/-8.7f / 74.6+/-9 m yrs) without cognitive impairment 48 h after hospital admission. Admission diagnoses covered orthopaedical (40%), internal (34%) and cerebrovascular (24%) diseases. According to analysis of reliability the consistency of the MNA scale for multimorbid patients has been verified. In preparation for scale reduction a factor analysis was applied. A reduced scale with selected cutoffs was configured and compared with MNA.

RESULTS

According to MNA, 15% of patients were well-nourished, 65% at risk of malnutrition and 20% were malnourished. The reliability analyses showed a Cronbach's Alpha of 0.60 that represented a satisfactory result. By means of factor analysis the MNA-items were reduced from 18 to 7 items (weight loss, mobility, BMI, number of full meals, fluid consumption, mode of feeding, health status). with new cutoffs (12.5-15 well-nourished, 9-12 at risk of malnutrition, <9 malnourished). According to the modified MNA (m-MNA) 21.7% of the patients were well-nourished, 54.5% at risk of malnutrition and 21.7% were malnourished. The score of the MNA and m-MNA correlated with r=0.910. Furthermore, there was a strong correlation between MNA and m- MNA group classification of 83%.

CONCLUSION

The m-MNA enables a rapid (3 min) and efficient screening of malnutrition in multimorbid geriatric patients. The m-MNA is easy to apply and may also be suitable in multimorbid patients with cognitive dysfunction. Due to the variety of items the m-MNA seems to be superior to other screening tools.

Characteristics of undernourished older medical patients and the identification of predictors for undernutrition status

Background

Undernutrition among older people is a continuing source of concern, particularly among acutely hospitalized patients. The purpose of the current study is to compare malnourished elderly patients with those at nutritional risk and identify factors contributing to the variability between the groups.

Methods

The study was carried out at the Soroka University Medical Center in the south of Israel. From September 2003 through December 2004, all patients 65 years-of-age or older admitted to any of the internal medicine departments, were screened within 72 hours of admission to determine nutritional status using the short version of the Mini Nutritional Assessment (MNA-SF). Patients at nutritional risk were entered the study and were divided into malnourished or 'at risk' based on the full version of the MNA. Data regarding medical, nutritional, functional, and emotional status were obtained by trained interviewers.

Results

Two hundred fifty-nine elderly patients, 43.6% men, participated in the study; 18.5% were identified as malnourished and 81.5% were at risk for malnutrition according to the MNA. The malnourished group was less educated, had a higher depression score and lower cognitive and physical functioning. Higher prevalence of chewing problems, nausea, and vomiting was detected among malnourished patients. There was no difference between the groups in health status indicators except for subjective health evaluation which was poorer among the malnourished group. Lower dietary score indicating lower intake of vegetables fruits and fluid, poor appetite and difficulties in eating distinguished between malnourished and at-risk populations with the highest sensitivity and specificity as compare with the anthropometric, global, and self-assessment of nutritional status parts of the MNA. In a multivariate analysis, lower cognitive function, education <12 years and chewing problems were all risk factors for malnutrition.

Conclusion

Our study indicates that low food consumption as well as poor appetite and chewing problems are associated with the development of malnutrition. Given the critical importance of nutritional status in the hospitalized elderly, further intervention trials are required to determine the best intervention strategies to overcome these problems.

Evidence rocks in long-term care, but does it roll?

This article reviews the problems with the implementation of evidence-based care in long-term care. It highlights the fact that many common practices are incompatible with evidence and that available evidence, including evidence about inadvisable and ineffective treatments, is often not followed. Often, there is a tendency to follow recommendations for younger persons (for example, the management of hypertension and elevated cholesterol), or to use questionable interventions (for example, choices for treating constipation). In many cases, the treatments used have only marginal efficacy and increased potential for side effects. This article makes recommendations for improving the approach to evidence-based care in long-term care and strongly urges the FDA to require drug studies in nursing homes.

Pharmacological Treatment of Geriatric Cachexia: Evidence and Safety in Perspective

Anticachexic or antisarcopenic medications are prescribed worldwide for geriatric patients with poor appetite and associated weight loss. They represent a valuable treatment option for managing cachexia. However, the well-publicized adverse reports about these medications in acquired immunodeficiency syndrome (AIDS) and in the cancer population has led to some concern and much subsequent discussion over the safety of these medications being used in geriatric population. This review looks at the evidence in relation to the benefits and risks of these medications and discusses what we know about their use in the geriatric population.

Constipation in Long-Term Care

Constipation is more common in older adults and accounts for increased physician office visits and hospital admissions. There is lack of agreement on the definition of constipation regarding what patients perceive as constipation and what physicians traditionally see as constipation. Constipation is related to multiple factors, and when left untreated or not properly treated, results in complications, such as impaction, even perforation and death. Laxative use increases with age and at times multiple agents are used to relieve symptoms of constipation. Currently the most commonly used laxative is stool softener but it lacks efficacy. From the review of literature, osmotic laxatives are effective in older adults and well tolerated. Psyllium, a bulk laxative, is also effective in the treatment of constipation, while there is limited evidence for stimulants, dioctyl sulfosuccinate, and other bulk laxatives such as calcium polycarbophil and methylcellulose. A new drug, lubiprostone, is a type 2-chloride channel activator and is shown to be effective, safe, and well tolerated in older adults treated for chronic constipation in studies up to a year. It appears to be particularly useful in persons who have recurrent fecal impaction and in those with severe chronic constipation. There is a need for a large-scale trial examining an appropriate cost-effective approach to the management of constipation in the nursing home.

Correction of nutrition test errors for more accurate quantification of the link between dental health and malnutrition

OBJECTIVE

We quantified the link between tooth deterioration and malnutrition in institutionalized elderly subjects, taking into account the major risk factors for malnutrition and adjusting for the measurement error made in using the Mini Nutritional Assessment questionnaire.

METHODS

Data stem from a survey conducted in 2005 in 1094 subjects >or=60 y of age from a large sample of 100 institutions of the Rhône-Alpes region of France. A Bayesian approach was used to quantify the effect of tooth deterioration on malnutrition through a two-level logistic regression. This approach allowed taking into account the uncertainty on sensitivity and specificity of the Mini Nutritional Assessment questionnaire to adjust for the measurement error of that test.

RESULTS

After adjustment for other risk factors, the risk of malnutrition increased significantly and continuously 1.15 times (odds ratio 1.15, 95% credibility interval 1.06-1.25) whenever the masticatory percentage decreased by 10 points, which is equivalent to the loss of two molars. The strongest factors that augmented the probability of malnutrition were deglutition disorders, depression, and verbal inconsistency. Dependency was also an important factor; the odds of malnutrition nearly doubled for each additional grade of dependency (graded 6 to 1). Diabetes, central neurodegenerative disease, and carcinoma tended to increase the probability of malnutrition but their effect was not statistically significant.

CONCLUSION

Dental status should be considered a serious risk factor for malnutrition. Regular dental examination and care should preserve functional dental integrity to prevent malnutrition in institutionalized elderly people.

Oral candidiasis and nutritional deficiencies in elderly hospitalised patients

The prevalence of oral candidiasis and its association with malnutrition in terms of protein–energy malnutrition and mineral and vitamin depletion were evaluated in ninety-seven hospitalised older adults aged 82·1 (SD 8·6) years. Patients underwent a complete oral examination with microbiological investigation on admission to our geriatric rehabilitation unit. Patients were assessed nutritionally by evaluation of dietary intake and measurement of anthropometric variables, serum nutritional proteins, ferritin, Zn, folate, vitamins B12 and C. The prevalence of oral candidiasis was 37% (n 36); the proportion of patients with BMI <20 kg/m2 was 32% (n 31). The nutritional status of the population was studied by comparing two groups defined according to the absence (group I; n 61) or presence (group II; n 36) of oral candidiasis. The two groups did not differ on the basis of BMI and mid-arm circumference. However, group II had a smaller leg circumference, lower daily energy and protein intakes, lower albumin and transthyretin levels. Patients successfully treated with fluconazole increased their intake on day 30. The proportion of patients with hypozincaemia (<12·5 μmol/l) and vitamin C deficiency (<0·7 mg/l) was higher in group II. Treatment with antibiotics, poor oral hygiene, denture wearing, and vitamin C deficiency appeared as the most significant independent risk factors associated with oral candidiasis. The present findings show that oral candidiasis appears to be related to malnutrition and results in mucosal lesions that have a negative impact on energy intake, which may subsequently worsen nutritional status.

Nursing Home Food Services Linked with Risk of Malnutrition

Purpose: Links between food service characteristics and residents’ risk of malnutrition were examined.

Methods: Cognitively intact residents meeting inclusion criteria and living in one of 38 participating nursing homes were randomly sampled. The final sample consisted of 132 residents, who were screened for risk of malnutrition and completed a face-to-face interview questionnaire about dining experiences. Additional data came from participants’ medical charts, and each institution's food service manager completed a written questionnaire. Frequencies and logistic regressions were used to describe the sample and to examine relationships between risk of malnutrition and food service characteristics.

Results: Overall, 37.4% of participants were at risk of malnutrition. Food service factors, including food packages, lids, and dishes that were difficult to manipulate (β=0.285, p=0.009), bulk food-delivery systems (β=1.329, p=0.036), overall food satisfaction (β=0.253, p=0.044), menu cycle length (β=-2.162, p=0.003), and porcelain dishes (β=-0.345, p=0.052), all were significantly associated with risk of malnutrition.

Conclusions: Our findings clearly show a need for nursing homes to modify certain aspects of food service that may increase the risk of malnutrition among cognitively intact residents.

The effects of nutrition education on professionals' practice and on the nutrition of aged residents in dementia wards

OBJECTIVE

(1) To develop nutrition education for professionals in dementia wards. (2) To evaluate the effects of education and determine the outcome of the education on the nutrition of aged residents.

DESIGN

Educational intervention with before and after measurements. Both the learning outcomes of the professionals and the effect on the aged residents were assessed.

SETTING

Nursing home residents in dementia wards and professionals.

SUBJECTS AND METHODS

Twenty-eight professionals completed half-structured feedback questionnaires that were analysed quantitatively and qualitatively. Assessments of 21 residents' energy and nutrient intake and 19 residents' nutritional status with the MNA before and after the education.

RESULTS

The learning process included six half-day training sessions. The professionals learned to use and interpret the MNA and detailed food diaries. Keeping the food diaries and analysing them in multi-professional teams was experienced as the main source for learning insights. After calculating the diets and discussing with others, professionals felt easier about responding to the nutritional problems of the residents. After 1 year, the residents' mean energy intake had increased 21% from 1230 to 1487 kcal. Before the education none but after 1 year 16% had a good nutritional status according to the MNA.

CONCLUSIONS

We used the constructive learning theory to educate professionals. Keeping and analysing food diaries and reflecting on nutritional issues in small group discussions were effective training methods for professionals. The education had positive effects on the nutrition of the residents in dementia wards.

Office management of weight loss in older persons

Weight loss in older persons is associated with a variety of deleterious effects, including hip fracture, pressure ulcers, decreasing immune function, decreased functional status, and death. There are 4 major causes of weight loss: anorexia, sarcopenia, cachexia, and dehydration. Many of the reasons for the development of these conditions are treatable. For example, depression is the most common cause of weight loss in the elderly. Early screening for anorexia can be undertaken in the physician's office utilizing the Simplified Nutritional Assessment Questionnaire. An algorithmic approach to the office management of weight loss is provided.

Assessment and management of chronic pressure ulcers in the elderly

Pressure ulcers remain a complex and costly problem to the health care system. As the population ages, a greater number of individuals will be at high risk for developing pressure ulcers. An understanding of the physiologic changes that occur with aging skin is important in preventing and treating chronic wounds. Risk factor assessment and modification, when possible, can help to reduce the development of pressure ulcerations. Although the goal continues to be prevention, once a pressure ulcer does occur, a systematic and comprehensive approach to assessment and treatment is necessary to reduce healing times.

Frailty

Frailty is a common condition in older people. It now can be objectively defined by the Fried criteria. When recognized, early intervention should begin with the institution of endurance, resistance, and balance exercises. In men with testosterone deficiency a trial of testosterone replacement should be considered. Vitamin D deficiency needs to be recognized and treated. Appropriate treatment of underlying diseases, such as anemia, diabetes mellitus, and congestive heart failure, are a key management principle. In people who have frailty aggressive health promotion and disease prevention techniques can lead to an inhibition of the downward spiral to disability.

Nutritional disorders in the elderly

Undernutrition is common in older people and has serious adverse effects. Weight loss and low body weight are key markers. Correctable causes, such as depression, are common and should be sought. Structured efforts to encourage food intake, together with nutritional supplements, often are of benefit. It is hoped that a better understanding of the underlying mechanisms will lead to targeted treatments. Overweight and obesity also are common in older people, and are associated with morbidity and impaired function. It is probably appropriate to recommend weight loss to obese older people who have associated comorbidities, particularly reduced mobility, but seldom, if ever, for increased weight alone.

ESPEN Guidelines on Enteral Nutrition: Geriatrics

Nutritional intake is often compromised in elderly, multimorbid patients. Enteral nutrition (EN) by means of oral nutritional supplements (ONS) and tube feeding (TF) offers the possibility to increase or to insure nutrient intake in case of insufficient oral food intake. The present guideline is intended to give evidence-based recommendations for the use of ONS and TF in geriatric patients. It was developed by an interdisciplinary expert group in accordance with officially accepted standards and is based on all relevant publications since 1985. The guideline was discussed and accepted in a consensus conference. EN by means of ONS is recommended for geriatric patients at nutritional risk, in case of multimorbidity and frailty, and following orthopaedic-surgical procedures. In elderly people at risk of undernutrition ONS improve nutritional status and reduce mortality. After orthopaedic-surgery ONS reduce unfavourable outcome. TF is clearly indicated in patients with neurologic dysphagia. In contrast, TF is not indicated in final disease states, including final dementia, and in order to facilitate patient care. Altogether, it is strongly recommended not to wait until severe undernutrition has developed, but to start EN therapy early, as soon as a nutritional risk becomes apparent.

Cachexia: pathophysiology and clinical relevance

Cachexia causes weight loss and increased mortality. It affects more than 5 million persons in the United States. Other causes of weight loss include anorexia, sarcopenia, and dehydration. The pathophysiology of cachexia is reviewed in this article. The major cause appears to be cytokine excess. Other potential mediators include testosterone and insulin-like growth factor I deficiency, excess myostatin, and excess glucocorticoids. Numerous diseases can result in cachexia, each by a slightly different mechanism. Both nutritional support and orexigenic agents play a role in the management of cachexia.

Poor nutritional habits are predictors of poor outcome in very old hospitalized patients

BACKGROUND

Malnutrition is prevalent in elderly populations. Recommended methods of nutritional screening are often too complicated and time-consuming for routine application in frail, very old, hospitalized patients.

OBJECTIVE

Our aims were to identify risk factors for development of malnutrition in very old hospitalized patients and to evaluate the total Mini Nutritional Assessment (MNA) score and MNA subscores as predictors of in-hospital and long-term mortality.

DESIGN

A prospective cohort study of patients aged > or =75 y was conducted in a geriatric hospital. Assessment included demographic, clinical, and laboratory data and cognitive, functional, and nutritional status. Follow-up was conducted for < or =2.7 y.

RESULTS

Of the 414 patients studied, only 73 (17.6%) were well-nourished. Low serum albumin and phosphorus concentrations, dementia, and cerebrovascular accident (CVA) were significant risk factors for malnutrition. Survival was significantly lower in malnourished patients and patients at risk of malnutrition than in well-nourished patients (P < 0.0001). Low MNA-3 subscores (dietary habits) were significantly correlated with laboratory indexes of malnutrition and were significantly lower in patients with infections, malignancy, pressure ulcers, dementia, recent orthopedic surgery, and CVA. Multivariate analysis showed that a low MNA-3 score was an independent predictor of mortality; scores <7.5 increased the risk of death 2.05-fold.

CONCLUSIONS

The prevalence of malnutrition was high in elderly hospitalized patients. Dietary habits were significant predictors of poor hospitalization outcome. A questionnaire on dietary habits can serve as a useful tool in assessing nutritional status and prognosis in elderly patients.

Is it possible to increase weight and maintain the protein status of debilitated elderly residents of nursing homes?

BACKGROUND

The care of elderly persons in chronic care nursing wards is generally complicated by nutritional problems such as weight loss and worsening protein status. An inability or refusal of the patient to consume enough food often necessitates the use of expensive commercial formulas for nutritional support. The purpose of this study was to determine whether the use of an in-house (high-protein, milk-based) low-cost formula with added minerals and vitamins for total nutritional support would be effective in maintaining weight and protein status of patients in the long term.

METHODS

Participants were recruited from five nursing care units of a single geriatric facility. All residents who required formula feeding were followed prospectively. The formula was provided either as a pudding or a milkshake for oral feeding or as a liquid for tube feeding and served as the sole source of nutrition. Data were collected regarding the participants' weight (monthly), serum albumin level (periodically), and the manner of formula administration (oral, nasogastric, or gastrostomy tube).

RESULTS

One hundred forty-three participants who received this formula were followed for a maximum period of 6 years. Mean weight increased by 5 kg during the first year and remained stable thereafter. Those participants who died within 6 months had no increase in weight. The long-term mean serum albumin level of all participants was an acceptable 4 g/dL.

CONCLUSION

The long-term use of an inexpensive in-house formula for total nutritional support increased weight and maintained serum albumin levels in most of the chronically ill elderly nursing care patients who participated in the study.

Obesity and Mortality in Elderly Nursing Home Residents

BACKGROUND

The increasing prevalence of obese Americans over the last several decades has been well documented. A number of studies have analyzed the relationship of obesity and mortality in community-dwelling elderly persons, but little work has analyzed this issue within the institutionalized elderly population.

METHODS

In an analysis of the 1996 Medical Expenditures Panel Study, we used logistic regression methods to examine the excess mortality associated with obesity, as defined by body mass index (BMI), over calendar year 1996 for existing and new nursing home residents.

RESULTS

Across the total sample of existing and new residents, there was not a statistically significant difference in mortality for "obese" (BMI > 28 kg/m2) nursing home residents (odds ratio [OR] 0.89; 95% confidence interval [CI], 0.67-1.17) compared to the "normal" group, but obesity was associated with significantly less mortality among existing residents (OR 0.75; 95% CI, 0.57-0.98). For "thin" (BMI < 19 kg/m2) nursing home residents, there was significantly higher mortality among both current residents (OR 1.40; 95% CI, 1.11-1.77) and new admissions (OR 1.63; 95% CI, 1.17-2.28). For "very obese" (BMI > 35 kg/m2) individuals, there was a significantly higher mortality among new admissions (OR 1.75; 95% CI, 1.10-2.80), but not existing residents (OR 0.67; 95% CI, 0.38-1.15). These effects persisted for "very obese" individuals (BMI > 40 kg/m2).

CONCLUSIONS

Very obese nursing home residents experience higher mortality early in their stay, but this association diminishes over time with some evidence suggesting that a higher BMI may be protective among long-stay residents.

Short-term weight changes in community-dwelling older adults: the Health, Aging, and Body Composition Weight Change Substudy

BACKGROUND

The frequency and short-term natural history of weight loss in community-dwelling older adults have not been described. Unintentional weight loss may be more likely to continue than intentional weight loss.

OBJECTIVES

The present substudy described the frequency of a > or = 5% loss or gain in body weight in community-dwelling older adults at an annual examination of the Health, Aging, and Body Composition (Health ABC) Study and 6 mo later. The weight-management practices used by the participants were also described.

DESIGN

A total of 522 older adults with either a > or = 5% weight gain (n = 116) or a > or = 5% weight loss (n = 171) in the previous year were compared with a random sample of weight-stable older adults (< 5% weight loss or gain, n = 235) at the fourth annual visit of the ongoing Health ABC Study. The participants' weight-loss intention and weight-management practices were assessed by an interview. The participants' weight was reassessed 6 mo later.

RESULTS

Compared with the weight-stable participants, the participants who had lost or gained weight at the substudy baseline were more likely to have subsequent weight changes. The direction of the subsequent weight change, however, was more likely toward either maintenance of or recovery from the previous weight change. Only 4% of the participants who gained weight and 11% of those who lost weight continued to gain or lose weight, respectively. Continued weight loss was more common in the participants with unintentional weight loss than in those with intentional weight loss, but the difference was not significant.

CONCLUSIONS

Weight changes were common, but most participants, including those who unintentionally lost weight, maintained their weight change or resolved their weight change in 6 mo. Unintentional weight loss appears less likely to resolve than other weight changes.

Elder Abuse and Neglect in Long-Term Care

Patient and caregiver education and other interventions targeted toward risk factors or types of abuse or neglect play an invaluable role in preventing elder abuse and mistreatment.

Body Weight Changes in Elderly Psychogeriatric Nursing Home Residents

OBJECTIVE

This study was undertaken to identify predictors of body weight change in nursing home patients with possible to severe dementia.

METHODS

For 24 weeks, 108 elderly residents of a nursing home were followed. Body weight was measured every 2 weeks. Other anthropometric characteristics, dietary intake, food behavior restrictions, psychological characteristics, medical status, and use of medicines were measured at baseline. Dietary intake was measured with a combined 3-day food record and by observations during the hot meals. Food behavior restrictions were measured following the classification of Berkhout. Dependency was measured by a questionnaire (Care Index Geriatrics), which measures restrictions in cognitive, physical, and social functioning. A generalized linear mixed effects model was used to investigate weight changes over time. The model was adjusted for age and sex.

RESULTS

During the follow-up period, 26% of the participants lost and 22% gained at least 2 kg of body weight. Dependency (beta = -0.11, 95% confidence interval [CI] = -0.21, -0.01) and decreased appetite (beta = -2.17, 95% CI = -4.32, -0.01) were significantly associated with body weight loss, whereas body mass index (beta = 2.25, 95% CI = 1.98, 2.51) and intake of fat (beta = 0.07, 95% CI = 0.01, 0.15) were predictors of weight gain.

CONCLUSION

Dependency, body mass index, intake of fat, and decreased appetite are significant predictors of body weight changes.

Low staffing level is associated with malnutrition in long-term residential care homes

OBJECTIVE

To determine if staffing level is associated with poor nutrition in the long-term residential care setting, adjusting for other confounding factors.

DESIGN

Cross-sectional survey.

SETTING

In total, 14 residential care facilities in Hong Kong, stratified by nature (government subvention or for-profit) to reflect the overall proportion in Hong Kong.

SUBJECTS

A total of 1914 subjects were assessed, using the Resident Assessment Instrument (RAI) 2.0. The response rate was 95% (1820 subjects), of which 1699 subjects had complete nutritional information.

INTERVENTION

Body mass index (BMI) was calculated by weighing and height measurement, and arm span was used if the subject could not stand. Subjects who were receiving parenteral or enteral nutrition via nasogastric of enterostomy tubes were excluded. A history of weight loss of 5% in the past month or 10% in the past 6 months, leaving 25% of food uneaten, and BMI < 18.5 kg/m(2) were examined as nutritional indicators. Association with age, gender, functional disability, oral problems, taste problems, presence of physical diseases and psychological well-being was examined using chi(2)-test, and multiple logistic regression.

RESULTS

In all, 26% of residents had a BMI < 18.5 kg/m(2), with a higher prevalence in the for-profit homes. History of weight loss and the record that 25% of food was left uneaten were poor indicators of low BMI. Multivariate analysis showed that having chronic obstructive airways disease, requiring help with feeding, being female, older age, were factors associated with an increased risk of poor nutrition, while being independent in activities of daily living and higher staff levels were associated with a reduced risk.

CONCLUSION

Poor nutrition is a persistent problem in the long-term care setting, and inadequate staffing levels may be a reversible cause. However, resource limitations may render efforts at improvement difficult.

SPONSORSHIP

SK Yee Memorial Fund.

Molecular mechanisms involved in muscle wasting in cancer and ageing: cachexia versus sarcopenia

The aim of the present review is to summarize and evaluate the different mechanisms and catabolic mediators involved in cancer cachexia and ageing sarcopenia since they may represent targets for future promising clinical investigations. Cancer cachexia is a syndrome characterized by a marked weight loss, anorexia, asthenia and anemia. In fact, many patients who die with advanced cancer suffer from cachexia. The degree of cachexia is inversely correlated with the survival time of the patient and it always implies a poor prognosis. Unfortunately, at the clinical level, cachexia is not treated until the patient suffers from a considerable weight loss and wasting. At this point, the cachectic syndrome is almost irreversible. The cachectic state is often associated with the presence and growth of the tumour and leads to a malnutrition status due to the induction of anorexia. In recent years, age-related diseases and disabilities have become of major health interest and importance. This holds particularly for muscle wasting, also known as sarcopenia, that decreases the quality of life of the geriatric population, increasing morbidity and decreasing life expectancy. The cachectic factors (associated with both depletion of fat stores and muscular tissue) can be divided into two categories: of tumour origin and humoural factors. In conclusion, more research should be devoted to the understanding of muscle wasting mediators, both in cancer and ageing, in particular the identification of common mediators may prove as a good therapeutic strategies for both prevention and treatment of wasting both in disease and during healthy ageing.

Nutritional status of older people in long term care settings: current status and future directions

Despite being preventable and treatable, in the 21st Century, malnutrition remains a problem in the developed world and the nutritional needs of many older people in long-term care settings are not met. The UK government has pledged to provide high-quality care for this sector of the population, including minimum standards to ensure adequate nutrition. However, research is still needed into the detection, prevalence, cause and effects of malnutrition and maintenance of optimum nutrition; and to address the lack of training and education among those caring for older peoples. In the interim, simple measures such as monitoring older people's weight regularly need to be implemented as a surveillance measure of nutritional status.

Percutaneous endoscopic gastrostomy in cognitively impaired older adults: a geropsychiatric perspective

The increasing use of percutaneous endoscopic gastrostomy (PEG) in cognitively compromised elderly presents complex treatment-related and ethical questions. Approximately half of all dementia patients will be unable to feed themselves within eight years of their diagnosis. Moreover, 85 percent of dementia patients have demonstrated refusal to eat. Geropsychiatry is often employed to evaluate these cognitively impaired patients either prior to or following PEG tube placement. This manuscript presents three cases to illustrate the most commonly encountered general dementia presentations: the ability to communicate with decisional capacity, the ability to communicate without decisional capacity, and severe verbal aphasia without decisional capacity. The study discusses ethical issues and treatment strategies for pre- and post-PEG tube placement consultations, including environmental interventions, in order to improve quality of life for this population.

Invited review: Aging and energy balance

Humans over 70 yr of age often lose weight. This appears to be due to a physiological anorexia of aging as well as a loss of lean mass (sarcopenia) and, to a lesser extent, fat mass. The causes of the physiological anorexia of aging include changes in taste and smell and a decrease in adaptive relaxation of the fundus of the stomach, which leads to more rapid antral filling and early satiation. In addition, basal and stimulated levels of the satiating hormone, cholecystokinin, are increased. In men, the decline in testosterone leads to an increase in leptin and a loss of lean mass. Although resting metabolic rate declines with aging, this is mainly due to the decline in lean body mass. Energy metabolism is also decreased due to a decline in Na+-K+-ATPase activity, decreased muscle protein turnover, and possibly changes in mitochondrial membrane protein permeability. Physical energy expenditure declines with aging. Meal-induced thermogenesis shows a delay to peak, possibly due to a delay in gastric emptying. Inadequate data are available on the effect of aging in humans on other energy-producing mechanisms such as adaptive thermogenesis. These physiological changes place older men and women at major risk of developing pathological weight loss when they develop disease states, especially those associated with cytokine elaboration.

Clinical evaluation for cancer in patients with involuntary weight loss without specific symptoms

PURPOSE

There is no established diagnostic approach to rule out cancer in patients who present with involuntary weight loss in the absence of other symptoms (isolated involuntary weight loss). We sought to evaluate the efficiency of various diagnostic studies used in these patients.

METHODS

We studied 306 patients referred to an urban tertiary care teaching hospital for isolated involuntary weight loss, 276 of whom were followed for at least 1 year or until a final diagnosis was reached. We collected data about the diagnostic approach, the causes of unintentional weight loss, and survival.

RESULTS

Of the 276 patients, 104 (38%) had cancer, mainly of the digestive system (54%, n = 56). The first diagnostic clue usually came from routine blood tests (complete blood count, erythrocyte sedimentation rate, and a biochemical profile), which led to a more targeted diagnostic procedure, such as abdominal ultrasonography, computed tomography, and gastrointestinal endoscopy. Only 2 patients with cancer had normal results in all of these tests. Nine of the patients with cancer were not detected during the initial evaluation. Median survival was 2 months among patients with cancer, and only 9 survived longer than 1 year.

CONCLUSION

These results suggest that a clinical approach, including routine laboratory tests (complete blood count, erythrocyte sedimentation rate, and serum albumin, aminotransferases, gamma-glutamyl transpeptidase, alkaline phosphatase, and lactate dehydrogenase levels) and abdominal ultrasonography, seems to be appropriate for detecting the majority of cases of cancer among patients with isolated involuntary weight loss.

Depression in late life: review and commentary

Depression is perhaps the most frequent cause of emotional suffering in later life and significantly decreases quality of life in older adults. In recent years, the literature on late-life depression has exploded. Many gaps in our understanding of the outcome of late-life depression have been filled. Intriguing findings have emerged regarding the etiology of late-onset depression. The number of studies documenting the evidence base for therapy has increased dramatically. Here, I first address case definition, and then I review the current community- and clinic-based epidemiological studies. Next I address the outcome of late-life depression, including morbidity and mortality studies. Then I present the extant evidence regarding the etiology of depression in late life from a biopsychosocial perspective. Finally, I present evidence for the current therapies prescribed for depressed elders, ranging from medications to group therapy.

Medical nutrition therapy for the prevention and treatment of unintentional weight loss in residential healthcare facilities

OBJECTIVES

To identify the rate of unintentional weight loss (UWL) in adults following their admission into residential healthcare facilities, assess the effectiveness of a new medical nutrition therapy (MNT) protocol for the prevention and treatment of UWL, and describe nutrition assessment and intervention activities of dietitians.

DESIGN

Prospective intervention study in which volunteer dietitians were randomly assigned to usual nutrition care (UC) or MNT protocol care (MNT-PC) groups. Dietitians recruited newly admitted residents and tracked their weights for up to 6 months using standardized weighing procedures. Data on weight outcomes and nutrition care activities were abstracted from medical records and compared between study groups. Subjects/settings Thirty-one dietitians from 29 facilities completed the field test (16 MNT-PC, 13 UC). Medical record data were available for 394 residents (223 MNT-PC, 171 UC), and complete weight trend data were available for 364 residents (200 MNT-PC, 164 UC).

INTERVENTION

The new MNT protocol for UWL in residential facilities emphasized assessment; intervention (including weighing frequency); communication with staff, medical doctor, family, and resident; and reassessment. Main outcome measures Rate of UWL and weight status 90 days after admission and weight status 90 days after identification of UWL. Statistical analyses Chi;(2), Independent t test, analysis of variance, and multiple regression using the general linear model.

RESULTS

Fourteen of 364 residents (4%) were admitted with significant preexisting weight loss, which was successfully treated in eight residents during the first 90 days. Substantial unintentional weight loss (>or=5% in any 30 days) developed in 78 residents (21%). MNT-PC dietitians were more likely to identify UWL. When UWL was identified, and, after providing nutrition care to these residents for an additional 90 days, 32 of 61 residents (52%) maintained or gained weight. Dietitians in UC and MNT-PC groups were equally successful in treating preexisting or postadmission unintentional weight loss when it was identified. Differences were found in nutrition care activities. MNT-PC dietitians reported more nutrition assessment activities, whereas UC dietitians reported more intervention activities. Conclusions/applications Nutrition care protocols with standardized weighing procedures can increase the identification of UWL in the residential healthcare environment. Improved identification supports the additional assessment activities used by MNT-PC dietitians. Similar outcomes for UC and MNT-PC groups when UWL was identified indicate that usual nutrition care was already a high standard of care for intervention.

Direct and indirect effects of everyday emotions on food intake of elderly patients in institutions

BACKGROUND

Decreased food intake is an important risk factor for malnutrition, which is highly prevalent among geriatric patients. The emotional nature of the hospitalization experience and the complex organizational setting involved in meal production and delivery services in institutions increase the risk for decreased food intake. Everyday emotions are known to have a particularly strong influence on decision-making and behavior in the elderly, and have also been shown, in younger populations, to influence food intake and its psychological antecedents, such as quality perception and satisfaction judgments. The objective of this paper is to study the direct impact of elderly patients' everyday emotions on food intake and their indirect effects mediated by quality perceptions and satisfaction judgments.

METHODS

Thirty patients (20 women, 10 men, 65-92 age range) in a geriatric rehabilitation unit were observed on repeated meal episodes (average of 46 care episodes per patient) where they provided self-reports for emotions (positive emotions, anger, anxiety, and mild depressed feelings), perceived meal quality, and satisfaction. Food intake was measured in terms of energy and protein content.

RESULTS

The impact on food intake was favorable, and both direct and indirect for positive emotions, direct and negative for anxiety, direct and positive for mild depressed feelings, and indirect and negative for anger. Indirect effects were mediated by quality perception judgments but not by satisfaction, which was not significantly related to food intake.

CONCLUSION

Results suggest that, given their impact on food intake, measuring and monitoring patients' everyday emotions may be an important innovative strategy to improve food intake of elderly patients in institutions.

The influence of protein-calorie malnutrition on quality of life in nursing homes

BACKGROUND

Up to 85% of the older adults living in our nation's nursing homes suffer from protein-calorie malnutrition (PCM). Early identification and treatment of PCM can reduce or prevent hospital stays, reduce complications, and decrease mortality. We describe the influence of PCM on quality of life in nursing homes, using archived data from the Minimum Data Set.

METHODS

The study was guided by the Quality Nutrition Outcomes-Long Term Care Model, which posits a pathway whereby organizational issues influence nutritional status, consisting of body mass index (BMI), serum albumin levels, and prealbumin levels, and subsequent quality of life, morbidity, and health care utilization. A cross-sectional design was used to analyze Minimum Data Set assessment data already collected from a previous study. The sample for this analysis was 311 nursing home residents, aged 65 years or older, who lived in three nursing homes in eastern Washington.

RESULTS

Of the participants, 38.6% were malnourished. PCM (measured by BMI) influenced quality of life for these residents in that there was a significant relationship between BMI and functional status (eating, personal hygiene, and toilet use) and BMI and psychosocial well-being (initiative or involvement, unsettled relationships, and past roles). Depression was not a significant indicator of low BMI in these nursing home residents.

CONCLUSIONS

Low BMI, indicating PCM, was found to negatively influence quality of life in this study. Understanding the relationship between quality of life and PCM could lead to improved quality of life for older adults in nursing homes and guide future innovative intervention studies aimed at preventing PCM.

Dietary intake and eating patterns of elderly people in Israel: who is at nutritional risk?

OBJECTIVE

To determine dietary intake and eating patterns of older persons in Israel and to identify factors associated with low intake.

DESIGN

A cross-sectional study.

SETTING

Community-dwelling participants living in the Beer-Sheva area were interviewed at home, using a 24 h food questionnaire with additional questions regarding health and eating habits. Dietary intake was compared between people aged 65-74 and 75 y and older.

SUBJECTS

A total of 377 people over the age of 65 224 aged 65-74 and 153>75, were randomly selected from the Negev population.

RESULTS

Dietary intake of energy, fat, carbohydrates, vitamins E, C and B(1) were significantly lower for people aged 75 and older compared with people aged 65-74. Low energy intake was associated with lower subjective health status for men (P<0.01), poor appetite (P<0.01) and more gastrointestinal problems (P<0.05) for women and lower snack consumption (P<0.01) for both genders. In a multivariate model, low energy intake was associated with low appetite and higher use of medication for both sexes and with frequency of eating alone and not consuming snacks for men.

CONCLUSIONS

Dietary intake is lower among individuals older than 75 than in 65-74 y old. Risk factors for low intake include poor appetite and health status, gastrointestinal problems, and eating alone. Snacking enhanced dietary intake and should be encouraged in this group.

Undernutrition in medical outpatients

This article discusses the epidemiology, predisposing factors, and etiology of undernutrition in geriatric patients receiving ambulatory care. It presents the major aspects of the clinical evaluation of undernutrition in older adults. Interdisciplinary assessment of nutritional risk in the outpatient setting and the formulation of an outpatient nutritional intervention model are also discussed.

Diagnosing undernutrition

Because of its wide prevalence and its grave consequences on the health of older persons, malnutrition requires immediate attention. Physicians in general have been described as being nutritionally blind in their slowness to recognize undernutrition. A high degree of suspicion, a thorough history and physical examination, and pertinent laboratory data can identify patients at risk. When a more comprehensive assessment is needed; screening tools, dietary history, and special biochemical parameter can be used.