Nutrition in Clinical Practice

Malnutrition continues to be a serious problem in older adults. Experts have suggested a mandatory integration of nutrition into the comprehensive geriatric assessment (CGA). The purpose of this article is to briefly review the components of the CGA and discuss the nutrition implications of each individual domain of the CGA. Any problem identified during the assessment (including positive findings on nutrition screening and assessment tools) should be addressed and interventions implemented in a timely fashion. Recommendations for interdisciplinary health professionals across the care continuum are provided.

Food preservation technologies and medical advances in the past 50 years have contributed to safeguarding the health and prolonging the lives of individuals worldwide. However, living longer does not automatically equate with being healthy, living independently, making judicious decisions, or setting goals and achieving them. Most adults will experience 1 or more health problems with lingering consequences. It is the impact of the disease or injury that determines overall well-being and quality of life. Frailty, sarcopenia and malnutrition have been identified as common geriatric syndromes associated with functional decline, disability, hospitalization, institutionalization, and mortality. The evidence demonstrates that these geriatric syndromes could be prevented or the course of the syndrome altered through prevention strategies. Since these syndromes often present concurrently, it is prudent for healthcare professionals to recognize the interrelationships and clinical implications of these syndromes to employ tactics to promote desirable outcomes.

Older adults are becoming a significant percentage of the world’s population. A multitude of factors, from the normal aging process to the progression of chronic disease, influence the nutrition needs of this very diverse group of people. Appropriate micronutrient intake is of particular importance but is often suboptimal. Here we review the available data regarding micronutrient needs and the consequences of deficiencies in the ever growing aged population.

Older adults living in healthcare communities (HCCs) have multiple comorbidities and are at increased risk of malnutrition and unintended weight loss. Aging affects nearly every system as well as body composition and structure, causing physiological changes that can affect nutrition status. A significant percentage (56%) of residents who live in nursing facilities require extensive help to eat and have dental problems such as ill-fitting dentures, missing teeth, and swallowing problems, which can lead to inadequate caloric intake and unintended weight loss. Alzheimer disease or dementia is prevalent in both nursing facilities and in assisted living/residential care communities, where it affects 45% of older adults. In cognitively impaired residents, most tube feeding placements occur in the acute care setting and result in significant use of additional healthcare resources, along with high postinsertion mortality rates within 60 days of insertion. Nursing facilities receiving Medicare or Medicaid funding must abide by state and federal regulations and undergo rigorous surveys while balancing complex decisions related to initial placement of feeding tubes. Healthcare professionals must recognize the importance of establishing nutrition treatment goals that are resident centered and that respect the unique values and personal decisions of the older adult. Informed choice, resident-centered care decisions, and the review of living wills and/or advance directives are essential in the decision-making process. After enteral nutrition is started, healthcare practitioners must carefully review the physician’s orders and administer and monitor the resident’s tolerance, checking for potential complications.

The trend among older adults in the United States is to “age in place” instead of opting for institutionalization. To maintain older adults with chronic conditions in their homes and to improve health after hospitalization, comprehensive social, health, and nutrition services are essential. Quality of dietary intake is crucial and yet often underestimated. Calorie needs decrease with age while nutrient needs remain the same, even increasing for some nutrients. This poses difficulties for individuals with functional disabilities who are unable to shop and cook due to physical or mental limitations or on a limited budget. The Older American Act home-delivered meal (HDM) program offers at least 1 healthy meal per day, 5 or more days per week, and targets individuals homebound due to illness, disability, or social isolation and those with greatest economic or social need. This review summarizes the available literature on the relationship between HDM and health outcomes. The HDM program is difficult to evaluate because of the multifactorial effect on health status. However, national surveys and smaller studies show that it is well targeted, efficient, and well liked; provides quality food to needy individuals; and helps individuals remain living independently. Studies show that HDMs improve dietary intake, with greater health benefits when more meals reach the neediest individuals. HDMs also decrease institutionalization of older adults and resulting healthcare expenditures. However, funding has not kept up with increased demand for this program. More studies with improved designs may provide more information supporting the program’s impact on nutrition status and decreased health expenditures.

Undernutrition has been associated with pressure ulcers in epidemiological studies over several decades. Accumulating evidence from recent systematic reviews and randomized controlled trials has shown that nutrition therapy has only modest effects on prevention and treatment of pressure ulcers. Since undernutrition should be responsive to the provision of adequate nutrients, the poor response suggests a different nutrition construct is required. Weight loss and changes in acute inflammatory reactants may reflect the syndrome of cachexia rather than simple undernutrition. Nutrition prescriptions should be individually tailored to persons with pressure ulcers with regard to both macro- and micronutrients. This review evaluates effects of malnutrition on pressure ulcers and analyzes effects of nutrition on pressure ulcer prevention and healing.

Background and Objective: There is no accepted nutrition approach for wound healing in children. Our aims were to determine optimal nutrition support for pediatric wound healing. Methods: We applied local methods to create evidence- and consensus-based recommendations, supported by implementation tools, including algorithms, clinical decision supports, and measures. We applied these recommendations to the care of 49 patients from December 5, 2011, to December 5, 2012. Results: Six articles were found that addressed our clinical questions, and we formulated 5 clinical recommendations. Evidence supported evaluating patients for vitamin C, zinc, and protein deficiency. Of the patients where laboratory values were checked, 9 patients were zinc deficient (33%) and 12 patients were vitamin C deficient (48%). Discussion and Practical Application: The implementation of our recommendations has led to increased identification of micronutrient deficiencies and closer monitoring of nutrition status and intake. Online clinical decision supports can accelerate the adoption of clinical recommendations and reduce provider practice variation.

Background: The Joint Commission has mandated universal screening and assessment of hospitalized patients for malnutrition since 1995. Although various validated and nonvalidated tools are available, implementation of this mandate has not been well characterized. We report results of a survey of hospital-based professionals in the United States describing their perspective on the current range of nutrition screening and assessment practices as well as associated gaps in knowledge. Methods and Materials: Data from a 2012–2013 cross-sectional, web-based survey targeting members of the American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.), the Academy of Medical-Surgical Nurses, and the Society of Hospital Medicine were collected with non–hospital-based members excluded. Descriptive statistical analysis was performed. Results: Survey data from 1777 unique email addresses are included in this report. A majority of respondents were dietitians, nearly half were A.S.P.E.N. members, and 69.4% reported caring for a mix of adult and pediatric patients. Most respondents answered affirmatively about nutrition screening being performed in alignment with The Joint Commission mandate, but only 50% were familiar with the 2012 Consensus Statement from the Academy of Nutrition and Dietetics/A.S.P.E.N. on adult malnutrition. In most cases, nurses were primarily responsible for nutrition screening, while dietitians had primary responsibility for assessment. No one specific assessment tool or International Classification of Diseases, Ninth Revision code was identified as being used a majority of the time in assessing or coding a patient for malnutrition. Conclusions: The survey findings affirmed compliance with accreditation standards in completing a nutrition screen within 24 hours of admission, and most hospitals appear to have a process to perform a nutrition assessment once a screen is completed. However, there is considerable heterogeneity in both use of tools and mechanisms for coding capture. Opportunities exist to improve education around nutrition screening and assessment and to identify ideal practices for these processes in hospitalized patients.

Background: Pancreatic insufficiency is common in patients with cystic fibrosis (CF) and leads to malabsorption of fat-soluble vitamins. Multivitamins, including vitamins A, D, E, and K, are routinely prescribed to patients with CF to prevent vitamin deficiencies. Our objective was to examine the relationship between fat-soluble vitamin supplements and their impact on blood concentrations. Methods: This was a retrospective chart review of patients with CF who were treated at Emory Clinic and Emory University Hospital during 2008–2012. The amount of fat-soluble vitamin supplementation, serum markers of fat-soluble vitamin concentrations, CF transmembrane conductance regulator genotype, and other demographic information were recorded from electronic medical records. Mixed-effects models were used to investigate the trends over time of fat-soluble vitamin supplements and serum vitamin concentrations. Results: In total, 177 charts were eligible. Mean (SD) age was 26.1 (10.2) years. Ninety-two percent of patients had pancreatic insufficiency and 52% had the homozygous ΔF508 mutation. Recorded fat-soluble vitamin supplementation increased in the past 5 years (P < .001 for all). Serum 25-hydroxyvitamin D increased slightly (3% increase; P < .01); however, there were no changes in the blood concentrations of vitamins A, E, and K (P = .26–.96). Conclusions: Despite a near doubling of recorded fat-soluble vitamin supplementation over the past 5 years, there was no parallel increase in blood concentrations of these vitamins. Potential reasons include suboptimal dosages, low adherence, or ongoing issues with malabsorption.

Objective: In patients at risk of aspiration pneumonia due to gastroesophageal reflux who require gastrojejunostomy feeding tubes, the tubes are placed either radiologically (RIGJ) or endoscopically (PEGJ). There is little published evidence of the superiority of one technique over the other. Methods: Patients referred for long-term jejunal feeding were randomly allocated to have a 14F RIGJ or 15F with 9F jejunal extension PEGJ inserted. A technetium-99m (^99mTc) colloid study was done to determine the presence of gastroesophageal reflux and jejunogastric reflux after feeding tube placement. We recorded enteral feed and tube-related complications, in addition to tube-related morbidity and mortality to 90 days following placement. Results: Baseline characteristics were similar between groups, with gastroesophageal reflux demonstrated in 52%. Following enteral tube placement, gastroesophageal reflux was not observed by ^99mTc studies or any difference in clinical outcome to 90 days after placement. No jejunal tubes were displaced in any of the 31 RIGJ tubes, while 9 tubes were displaced in the 34 PEGJ patients (P = .008). Reversible jejunal tube blockages occurred: 19 RIGJ (5 patients) and 61 PEGJ (11 patients) (P = .003, χ² = 9.1). Conclusion: There was little difference between the 2 tubes for clinical outcomes. RIGJ tubes were less prone than PEGJ tubes to reversible blockage and displacement. It is likely that the better outcome for RIGJ tubes relates to their larger tube diameter and stiffness.

Background: Nonceliac gluten sensitivity (NCGS), occurring in patients without celiac disease yet whose gastrointestinal symptoms improve on a gluten-free diet (GFD), is largely a self-reported diagnosis and would appear to be very common. The aims of this study were to characterize patients who believe they have NCGS. Materials and Methods: Advertising was directed toward adults who believed they had NCGS and were willing to participate in a clinical trial. Respondents were asked to complete a questionnaire about symptoms, diet, and celiac investigation. Results: Of 248 respondents, 147 completed the survey. Mean age was 43.5 years, and 130 were women. Seventy-two percent did not meet the description of NCGS due to inadequate exclusion of celiac disease (62%), uncontrolled symptoms despite gluten restriction (24%), and not following a GFD (27%), alone or in combination. The GFD was self-initiated in 44% of respondents; in other respondents it was prescribed by alternative health professionals (21%), dietitians (19%), and general practitioners (16%). No celiac investigations had been performed in 15% of respondents. Of 75 respondents who had duodenal biopsies, 29% had no or inadequate gluten intake at the time of endoscopy. Inadequate celiac investigation was common if the GFD was initiated by self (69%), alternative health professionals (70%), general practitioners (46%), or dietitians (43%). In 40 respondents who fulfilled the criteria for NCGS, their knowledge of and adherence to the GFD were excellent, and 65% identified other food intolerances. Conclusions: Just over 1 in 4 respondents self-reporting as NCGS fulfill criteria for its diagnosis. Initiation of a GFD without adequate exclusion of celiac disease is common. In 1 of 4 respondents, symptoms are poorly controlled despite gluten avoidance.

Background: This study describes the results of an evaluation of educational strategies used to implement a novel enteral feeding protocol in 9 North American intensive care units (ICUs). Materials and Methods: Members of the protocol implementation teams at each ICU distributed a questionnaire to ICU nurses after the implementation of the Enhanced Protein-Energy Provision via the Enteral Route Feeding Protocol in Critically Ill Patients (PEP uP) protocol. Eight different educational strategies were evaluated. Questionnaires were distributed in both paper and electronic format to all nursing staff and used both a visual analog Likert-type scale and open-ended questions. Results: The response rate to the questionnaire was 166 of 434 or 38.2%. More than 70% of respondents rated 5 of the educational strategies as very useful or somewhat useful, including the long PowerPoint presentation at in-services and critical care rounds, the short PowerPoint presentation for 1-on-1 and group bedside teaching, and a self-learning module. The percentage of nurses who found the bedside protocol tools of the enteral feeding order set, gastric feeding flowchart, and volume-based feeding schedule either “very easy” or “somewhat easy” to use were 64.0%, 60.5%, and 59.1%, respectively. Conclusion: The use of multiple teaching formats, including the long and short PowerPoint presentations and self-teaching module, appeared to meet the learning needs of most of the group. The majority of the bedside tools developed to facilitate the implementation of the PEP uP protocol were considered easy to use.

Background: Upper gastrointestinal (UGI) cancer has a profound effect on the function of major digestive organs with resulting deterioration in nutrition status. There are currently no known evidence-based guidelines specific to the nutrition management of people with UGI cancer. This article aimed to review the current guidelines related to the nutrition management of surgical and nonsurgical cancer patients with the aim to collate similar findings to produce a summary of recommendations for clinicians. Gaps in current evidence were also identified. Methods: Guidelines with evidence grading systems were identified from CINAHL, Medline, Web of Science, and a manual search. The quality of guidelines was assessed using the Appraisal of Guidelines Research and Evaluation (AGREE) tool. Results: Twenty-six guidelines were retrieved. Most guidelines showed strong rigor, but only 23% were considered current, having been developed or reviewed in the past 3 years. A summary of recommendations was extrapolated from retrieved guidelines, based on a standardized evidence grading system and the quality score for each guideline. Conclusion: This review of current guidelines shows that many areas of nutrition management still require more evidence to support high-level recommendations. These include immunonutrition, pancreatic enzyme replacement therapy, and postdischarge complication management. More research is needed before evidence-based guidelines can be developed.

Background: While the percutaneous endoscopic gastrostomy (PEG) tube has become an established part of the management regimen for patients with head and neck cancer (HNCA) with impaired nutrition and functional status, limited research has explored the impact and experiences of living with a PEG tube from the patient’s perspective. This qualitative study serves as a follow-up investigation undertaken to describe the experiences of patients with advanced HNCA living with a PEG tube. Materials and Methods: Eligible patients from convenience sampling were invited to participate until data saturation was reached. In-depth interviews were conducted with consenting participants. Qualitative descriptive design guided the content analysis of the interview transcripts. Results: Of the 49 patients invited, a total of 15 participants’ interviews were transcribed and analyzed. Each interview was 15–90 minutes in length. Four of 22 content codes were chosen to describe the overarching ideas of the progressive experience of a patient’s journey from the initial decision-making process around tube insertion through to its removal. Difficulty swallowing and weight loss emerged as primary factors for PEG tube insertion, and all participants became accustomed to living with the tube. Resuming a complete oral diet was a gradual transition. All participants recognized the value of the tube, and most acknowledged its necessity for their survival. Conclusions: Results describe the overall PEG tube experience as a dichotomy. While there were issues with the PEG tube, all participants found the tube to be beneficial. This study provides invaluable insight from a practice perspective.

Glycemic control is an important component of the metabolic management of the critically ill patient. Nutrition support teams are frequently challenged by complicated patients who exhibit multiple concurrent etiologies for hyperglycemia. Nutrition support teams can serve in a pivotal role in the development and evaluation of safe and effective techniques for achieving glycemic control. This review describes the efforts of a nutrition support team in achieving safe and effective glycemic control at their institution. Identification of target blood glucose concentration range, development, initiation, monitoring of a continuous intravenous insulin infusion algorithm, nursing adherence to the algorithm, modification of the algorithm based on the presence of conditions that alter insulin metabolism and glucose homeostasis, and transition of the patient who receives continuous enteral nutrition from a continuous intravenous insulin infusion to intermittent subcutaneous insulin therapy are discussed.

The American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.) is a professional society of physicians, nurses, dietitians, pharmacists, nurse practitioners, physician assistants, other allied health professionals, and researchers. A.S.P.E.N. envisions an environment in which every patient receives safe, efficacious, and high-quality nutrition care. A.S.P.E.N.’s mission is to improve patient care by advancing the science and practice of clinical nutrition and metabolism. These combined Standards for Nutrition Support: Home Care and Alternate Site Care are an update of the 2005 and 2006 standards.