Effect of nutritional support team restructuring on the use of parenteral nutrition. Nutrition. 2010;26:735-739. [PMID: 20018482 DOI: 10.1016/j.nut.2009.08.012]

Nutritional support team intervention in surgical ICUs and its effect on nutrition delivery and quality in critically ill patients

RATIONAL

Critically ill surgical patients pose one of the greatest challenges in achieving nutritional goals. Several published papers have demonstrated clear benefits when nutrition support (NS) is managed by a multidisciplinary nutrition support team (NST). We hypothesized that implementing a NST in a surgical intensive care unit (ICU) would increase the number of patients achieving their nutritional goals.

MATERIAL AND METHOD

Multicenter "BEFORE & AFTER" study. In the BEFORE phase, an audit of the previous state of NS was conducted in three ICUs without a NST.

INTERVENTION

Implementation of a NST and protocol. In the AFTER phase, a new audit of NS was conducted. Continuous variables (presented as mean ± SD or median Q1-Q3) were tested using the t-test and Mann-Whitney U test. Categorical variables (presented as frequencies and percentages) were assessed using the chi-square test. A binomial logistic regression model was performed, with independent variables introduced using a stepwise forward method. A difference was considered to be significant with a two-sided P-value <0.05. Statistical analysis was conducted using IBM-SPSS 26.

RESULTS

A total of 83 patients were included in the BEFORE phase, and 85 in the AFTER phase. The latter group showed a higher frequency of nutritional risk and malnutrition (SGA B+C odds ratio 2.314, 95% CI 1.164-4.600). Laparoscopy was more frequently utilized as a surgical technique in the AFTER phase. No differences were observed in ICU and hospital LOS or 90 days' survival rates. Two variables remained independent factors to predict NS achievement: NST implementation (odds ratio 3.582, 95% CI 1.733-7.404), and surgical technique (odds ratio 3.231, 95% CI 1.312-7.959).

CONCLUSION

NST positively impacts the chance of achieving NS goals in critically ill surgical patients.

Parenteral Nutrition Overview

Parenteral nutrition (PN) is a life-saving intervention for patients where oral or enteral nutrition (EN) cannot be achieved or is not acceptable. The essential components of PN are carbohydrates, lipids, amino acids, vitamins, trace elements, electrolytes and water. PN should be provided via a central line because of its hypertonicity. However, peripheral PN (with lower nutrient content and larger volume) can be administered via an appropriate non-central line. There are alternatives for the compounding process also, including hospital pharmacy compounded bags and commercial multichamber bags. PN is a costly therapy and has been associated with complications. Metabolic complications related to macro and micronutrient disturbances, such as hyperglycemia, hypertriglyceridemia, and electrolyte imbalance, may occur at any time during PN therapy, as well as infectious complications, mostly related to venous access. Long-term complications, such as hepatobiliary and bone disease are associated with longer PN therapy and home-PN. To prevent and mitigate potential complications, the optimal monitoring and early management of imbalances is required. PN should be prescribed for malnourished patients or high-risk patients with malnutrition where the feasibility of full EN is in question. Several factors should be considered when providing PN, including timing of initiation, clinical status, and risk of complications.

Systematic review with meta-analysis: effects of implementing a nutrition support team for in-hospital parenteral nutrition

BACKGROUND

Nutrition support teams (NST) may improve parenteral nutrition (PN) outcomes. No previous systematic review has provided conclusive data on catheter-related infection (CRI) occurrence after NST introduction, nor have previous studies performed meta-analysis or graded the evidence.

AIMS

To systematically evaluate the effects of implementing an NST for hospitalised adults on PN and compare these with standard care.

METHODS

This was a systematic review and meta-analysis, pre-registered in PROSPERO (CRD42020218094). On November 24, 2020, PubMed, Web of science, Scopus, Embase, Cochrane Library, and Clinical Key were searched. Clinical trials and observational studies with a standard care comparator were included. Primary outcome was relative reduction in CRI rate. A random-effects meta-analysis was used to estimate effects, and evidence was rated using Cochrane and GRADE methodologies.

RESULTS

Twenty-seven studies with 8166 patients were included. Across 10 studies, NST introduction reduced the CRI rate (IRR = 0.32, 95% CI: 0.19-0.53) with -8 (95% CI: -12 to -5) episodes per 1000 catheter days compared with standard care. Hypophosphataemia occurred less frequently (IRD = -12%, 95% CI: -24% to -1%) and 30-day mortality decreased (IRD = -6%, 95% CI: -11% to -1%). Inappropriate PN use decreased, both judged by indication (IRD = -18%, 95% CI: -28% to -9%) and duration (IRD = -21%, 95% CI: -33% to -9%). Evidence was rated very low to moderate.

CONCLUSIONS

This study documents the clinical impact of introducing an NST, with moderate-grade evidence for the reduction of CRI occurrence compared with standard care. Further, NST introduction significantly reduced metabolic complications, mortality, and inappropriate PN use.

Impact of Refeeding Syndrome on Short- and Medium-Term All-Cause Mortality: A Systematic Review and Meta-Analysis

BACKGROUND

The refeeding syndrome has been described as a potentially life-threatening complication of renutrition. However, moving from single reports to larger population studies, the real impact of refeeding syndrome on all-cause mortality is still unknown.

METHODS

PubMed/Medline, EMBASE, Cochrane library, and CINAHL databases were systematically searched until September 2020 for studies reporting mortality rates in patients who developed the syndrome at renutrition compared with those who did not develop it. Effect sizes were pooled through a random-effect model.

RESULTS

Thirteen studies were finally considered in the meta-analysis, for a total of 3846 patients (mean age 64.5 years; 58% males). Pooled data showed a nonsignificant trend toward an increased short-term (≤1 month) mortality in patients developing the refeeding syndrome (odds ratio = 1.27, 95% confidence interval 0.93-1.72), mostly driven by studies in which renutrition was not prescribed and supervised by a nutritional support team (P = .01 at subgroup analysis) and by studies published in previous years (P = .04 at meta-regression). When examining medium-term (≤6 month) mortality, an overall statistical significance toward higher risk was observed (odds ratio = 1.54, 95% confidence interval 1.04-2.28).

CONCLUSION

This was the first meta-analysis that specifically assessed the impact of refeeding syndrome on mortality. Our results suggested a nonsignificant trend toward increased mortality in the short term but a significantly increased mortality in the medium term. The supervision/management of the refeeding process by a nutrition specialist might be a key factor for the limitation of this mortality excess.

Parenteral Provision of Micronutrients to Adult Patients: An Expert Consensus Paper

BACKGROUND

Micronutrients, an umbrella term used to collectively describe vitamins and trace elements, are essential components of nutrition. Those requiring alternative forms of nutrition support are dependent on the prescribed nutrition regimen for their micronutrient provision. The purpose of this paper is to assist clinicians to bridge the gap between the available guidelines' recommendations and their practical application in the provision of micronutrients via the parenteral route to adult patients.

METHODS

Based on the available evidenced-based literature and existing guidelines, a panel of multidisciplinary healthcare professionals with significant experience in the provision of parenteral nutrition (PN) and intravenous micronutrients developed this international consensus paper.

RESULTS

The paper addresses 14 clinically relevant questions regarding the importance and use of micronutrients in various clinical conditions. Practical orientation on how micronutrients should be prescribed, administered, and monitored is provided.

CONCLUSION

Micronutrients are a critical component to nutrition provision and PN provided without them pose a considerable risk to nutrition status. Obstacles to their daily provision-including voluntary omission, partial provision, and supply issues-must be overcome to allow safe and responsible nutrition practice.

Nutrition Support Teams: A Systematic Review

BACKGROUND

The concept of a nutrition support team (NST) was first introduced at the end of the 20th century in the US and Europe. Expected benefits include reduced (inappropriate) prescription of (par)enteral nutrition; however, to the authors' knowledge, no recent review has assessed the effectiveness of NSTs. Therefore, this systematic review evaluated the effectiveness of NSTs with respect to the prevalence of adult patients receiving (par)enteral nutrition.

METHODS

Five literature databases were searched and completed by citing searches. Studies on NSTs that were published between 2000 and 2018 in Western countries, applied a comparative design, and contained at least outcome data on the prevalence of (par)enteral nutrition were included. Analyses were mainly descriptive because of high heterogeneity that prevented meta-analyses.

RESULTS

The 27 included studies mainly originated from the UK and US. Only 1 of the included studies was a randomized trial; the other studies had a pre-post design (n = 17) or compared groups in a nonrandomized way. All but 2 studies were performed in acute care hospitals, and 5 studies focused only on intensive care patients. There was conflicting evidence of whether NSTs lead to reduction or increase in patients starting parenteral nutrition (PN); however, weak evidence suggested that NSTs might lead to an increase in the ratio of enteral nutrition to PN use and might decrease inappropriate PN use.

CONCLUSION

Although almost all studies concluded in favor of NSTs, the evidence base is weak and insufficient because of a lack of well-designed studies and successful outcomes.

Efficacy and Efficiency of Nutritional Support Teams

Malnutrition is frequent in patients during a hospital admission and may further worsen during the hospital stay without appropriate nutritional support. Malnutrition causes greater complication rates, morbidity, and mortality rates, which increases the length of hospital stay and prolongs rehabilitation. Early recognition of individual nutritional risk and timely initiation of a tailored nutritional therapy are crucial. Recent evidence from large-scale trials suggests that efficient nutritional management not only improves the nutritional status, but also prevents negative clinical outcomes and increases patients’ quality of life. Multifaceted clinical knowledge is required to ensure optimal nutritional support, according to a patient’s individual situation and to avoid potential complications. Furthermore, clear definition of responsibilities and structuring of patient, and work processes are indispensable. Interdisciplinary and multiprofessional nutritional support teams have been built up to ensure and improve the quality and safety of nutritional treatments. These teams continuously check and optimize the quality of procedures in the core areas of nutritional management by implementing nutritional screening processes using a validated tool, nutritional status assessment, an adequate nutritional care plan development, prompt and targeted nutritional treatment delivery, and provision of accurate monitoring to oversee all aspects of care, from catering to artificial nutrition. The foundation of any nutritional care plan is the identification of patients at risk. The aim of this narrative review is to provide an overview about composition, tasks, and challenges of nutritional support teams, and to discuss the current evidence regarding their efficiency and efficacy in terms of clinical outcome and cost effectiveness.

Influence of Dietitians in Preventing Parenteral Nutrition Prescription Errors in Children

BACKGROUND

The purpose of this study is to determine whether direct involvement by dietitians in parenteral nutrition (PN) ordering resulted in a reduction in PN prescriptions errors.

METHODS

A prospective audit of PN prescriptions was undertaken at a pediatric hospital over 50 weeks. Prescriptions for PN that had dietitian involvement (dietitian group) were compared with prescriptions in which dietitians were not directly involved (nondietitian group). The number of total prescriptions, the number of prescriptions with errors, and the types of errors from both groups were recorded. Errors were classified into "dietitian-preventable errors" and "nondietitian-preventable errors." Comparisons were made between prescriptions with and without errors, between dietitian-preventable and nondietitian-preventable errors, and between the dietitian and nondietitian groups per error type.

RESULTS

The total number of PN prescriptions was 725 (from 45 patients) and 471 (from 66 patients) for the dietitian and nondietitian groups, respectively. The nondietitian group was more likely than the dietitian group to prescribe PN incorrectly-18.0% (85 of 471) vs 12.4% (90 of 725; P = .007)-with the nondietitian group having 1.5-times more PN prescriptions with errors (risk ratio = 1.5, 95% CI: 1.1-1.9). The total number of prescription errors was 126 and 146 for the dietitian and nondietitian groups, respectively. The dietitian group was less likely than the nondietitian group to be associated with dietitian-preventable errors: 65.9% (83 of 126) vs 87.0% (127 of 146; risk ratio = 1.3, 95% CI: 1.1-1.5; P < .0001).

CONCLUSION

Dietitian input into prescription of PN reduced the number of prescriptions with errors.

The successful accomplishment of nutritional and clinical outcomes via the implementation of a multidisciplinary nutrition support team in the neonatal intensive care unit

Background

Nutritional support is critical for preterm infants in the neonatal intensive care unit (NICU). A multidisciplinary nutritional support team (NST) that focuses on providing optimal and individualized nutrition care could be helpful. We conducted a thorough evaluation of clinical and nutritional outcomes in a tertiary NICU following the implementation of an NST.

Methods

This study used a retrospective approach with historical comparisons. Preterm neonates < 30 weeks gestational age or weighing < 1250 g were enrolled. Clinical and nutritional outcomes were compared before and after the establishment of the NST. Medical records were reviewed, and clinical and nutritional outcomes were compared between the two groups.

Results

In total, 107 patients from the pre-NST period and 122 patients from the post-NST period were included. The cumulative energy delivery during the first week of life improved during the post-NST period (350.17 vs. 408.62 kcal/kg, p < 0.001). The cumulative protein and lipid deliveries also significantly increased. The time required to reach full enteric feedings decreased during the post-NST period (6.4 ± 5.8 vs. 4.7 ± 5.1 days, p = 0.016). Changes of Z-score in weight from admission to discharge exhibited more favorable results in the post-NST period (−1.13 ± 0.99 vs.−0.91 ± 0.74, p = 0.055), and the length of ICU stay significantly decreased in the post-NST period (81.7 ± 36.6 vs. 72.2 ± 32.9 days, p = 0.040).

Conclusions

NST intervention in the NICU resulted in significant improvements in the provision of nutrition to preterm infants in the first week of life. There were also favorable clinical outcomes, such as increased weight gain and reduced length of ICU stay. Evaluable data remain sparse in the NICU setting with premature neonatal populations; therefore, the successful outcomes identified in this study may provide support for NST practices.

Electronic supplementary material

The online version of this article (doi:10.1186/s12887-016-0648-0) contains supplementary material, which is available to authorized users.

Nutritional support in adults with chyle leaks

We provide a practical approach to the complex management problem of chyle leaks that occur after surgical procedures or trauma, or when they occur spontaneously in association with malignancies. The volume of chyle loss causes significant problems due to loss of fluid, electrolytes, proteins, and lymphocytes, causing deleterious effects on wound healing and immunity. Enteral feeding is not always possible as long chain fatty acids are absorbed through the intestinal lacteals, the original source of chyle. Regular diets increase the leak and delay healing. Nutritional support involves coordinated care between healthcare providers to provide a combination of various modalities, including nil by mouth, parenteral nutrition, enteral feeding with formula modifications, and oral diet.

Addition of lipids to parenteral nutrition does not cause fungal infections

Parenteral nutrition (PN) that includes lipid emulsion is considered to increase both bacterial and fungal central venous catheter-related bloodstream infections. This concept is based on several erroneous metrics: Reports in age-old literature at a time when preparing PN admixtures lacked stringent quality control, when its infusion, the techniques of insertion, maintenance of vascular access devices, and delivery systems were not well identified or enforced. Additionally, concepts of glucohomeostasis were different and higher glucose levels were accepted. We provide updated information with supporting literature to show that associating PN with lipids with an increase in bloodstream infections is not justified.

Limited long-term survival after in-hospital intestinal failure requiring total parenteral nutrition

BACKGROUND

Total parenteral nutrition (TPN) is an invasive and advanced rescue feeding technique that has acceptable short-term survival although at costs of substantial risks. Survival after the clinical use of TPN >6 mo is unknown.

OBJECTIVE

We determined long-term survival after clinical TPN use in a consecutive cohort who were attending an academic hospital.

DESIGN

The study included a prospective cohort with a retrospective analysis of all 537 consecutive episodes of TPN in 437 patients between January 2010 and April 2012. Follow-up was until October 2013 with a total follow-up of 608 patient-years. Survival was analyzed by using Kaplan-Meier and Cox regression.

RESULTS

Survival was 58% in 437 patients with a first-time use of TPN at an average of 1.5 y after the initiation of TPN. The mortality rate was 30 deaths/100 patient-years. Older age, admission at an intensive care unit or a nonsurgical department, lower body mass index, and an underlying malignancy were positively associated with mortality.

CONCLUSION

TPN use, if correctly indicated, is a clinical sign of intestinal failure and a surrogate marker for markedly increased risk of mortality even >1.5 y after TPN use. This trial was registered at clinicaltrials.gov as NCT02189993 with protocol identification name TPN-01.

Quality and safety impact on the provision of parenteral nutrition through introduction of a nutrition support team

BACKGROUND/OBJECTIVES

Parenteral nutrition (PN) should be provided to the malnourished patient if enteral feeding is insufficient or unsafe. A nutrition support team (NST) may improve PN services. We compared the use and complications of hospital PN before and after the implementation of an NST.

SUBJECTS/METHODS

All inpatients referred for PN outside of the intensive care unit and the intestinal failure unit were prospectively included from 2009 to 2012. The NST was introduced in 2010. Quality improvement methodology was applied.

RESULTS

In 2009, a mean of 16 (limits of normal variation 4-28) patients were referred for PN each month. After introduction of the NST, this rose to 26 (10-42) referrals per month. The percentage of referrals where PN was not initiated increased from 5.3% in 2009 to 10.1% in 2012 (P=0.03). This increase was restricted to teams that infrequently referred for PN, and enteral nutrition could replace PN in 31 of 51 patients (61%) as compared with 8 of 32 (25%) patients referred from teams that frequently referred for PN (P=0.001). The frequency of PN started owing to an insufficient oral or enteral intake decreased from 11% to 3% (P=0.01). The catheter-related bloodstream infection rate dropped from 6.7 to 0.7 episodes per 1000 catheter days (P<0.001).

CONCLUSIONS

Introduction of an NST increased both the total PN use and the percentage of referrals where enteral nutrition could replace PN. Medical specialty influenced the referral pattern and the likelihood that a referral resulted in PN being initiated. Safety of PN catheters improved significantly following NST introduction.

Nutritional and metabolic abnormalities and nutrition support therapy in patients with liver failure

Nutritional and metabolic damage is an important manifestation of severe liver disease and is significantly associated with prognosis. In this paper, we review nutritional and metabolic abnormalities and nutritional support therapy in patients with liver failure by summarizing the indicators for evaluating the nutritional and metabolic status and the features of nutrients and energy metabolism. We point out that resting energy expenditure can be measured using CCM-D nutrition metabolism test system in liver failure patients. Energy supply is primarily contributed by fat oxidation in patients with chronic liver failure, and their respiratory quotient is significantly lower than the predicted values. In addition, we discuss nutritional support intervention methods and intake for different stages of liver failure. Our aim is to raise the awareness of clinicians for malnutrition in patients with liver failure to formulate individualized nutrition support therapy.

Update on micronutrients in bariatric surgery

PURPOSE OF REVIEW

Obesity is a growing worldwide epidemic. Obese patients are often deficient in micronutrients despite macronutrient excess. Bariatric surgery is an increasingly utilized modality in the treatment of obesity and obesity-related conditions. Bariatric surgery itself may cause or exacerbate micronutrient deficiencies with serious sequelae. This review will focus on perioperative strategies to detect, prevent and treat micronutrient deficiencies in patients undergoing bariatric surgery, and will highlight practical and clinical aspects of these nutritional problems.

RECENT FINDINGS

Micronutrient deficiency is common in obese patients undergoing bariatric surgery both preoperatively and postoperatively. Bariatric procedures with a malabsorptive component are more likely to result in postoperative micronutrient deficiency. A system-based approach will facilitate clinical suspicion of specific or combined micronutrient deficiencies, leading to appropriate laboratory tests for confirmation. Supplementation by the oral route is always tried first, reserving parenteral administration for specific situations.

SUMMARY

Clinicians should be aware that micronutrient deficiencies are common in obese patients who may have macronutrient excess. Micronutrient deficiency may exist preoperatively or be caused by bariatric procedures themselves. A systematic and team-based approach will decrease morbidity associated with delays in diagnosis and treatment.