The impact of implementation of a nutrition support algorithm on nutrition care outcomes in an intensive care unit

[Evaluation of the role of an advanced practice dietitian in the intensive care unit]

BACKGROUND

In Swiss intensive care units (ICUs), nutritional management is hardly or not at all supported or supervised by dietitians. Nutritional management in the ICU is mainly performed by ICU nursing staff and intensive care specialists. In 2022, the role of an advanced practice dietitian (APD) was newly defined, created, and implemented in a Swiss ICU as part of a pilot project. In contrast to other countries, APDs are still scarce in Switzerland. Evaluation of the APD role is essential to further define the position and adapt it to needs. The aim of this survey was to evaluate the impact of the APD role 8 months after implementation.

MATERIALS AND METHODS

The survey was conducted via online survey in February and March 2023. A total of 34 members of the ICU team participated, including physicians (n = 11), nurses (n = 20), and speech therapists (n = 3). In addition to workload, years worked in the company, and shiftwork, questions were asked about the level of awareness of the new APD position, integration of the APD into the ICU team, and the impact of the APD on nutritional management and the situation of the participants, as well as regarding documentation and prescribing skills. A descriptive analysis of the data was carried out in Microsoft Excel (Microsoft Corporation, Redmond, WA, USA).

RESULTS AND CONCLUSION

The majority are aware of the APD and consider her as part of the ICU team. From the treatment team's point of view, the quality of the nutritional care provided as by the APD has improved and there is added value for patients and the ICU team. The delegated prescribing competence seems to improve nutritional management noticeably and is perceived as helpful and relieving by a majority. How the position will develop in terms of the competence profile remains to be seen.

Best evidence summary for prevention and management of enteral feeding intolerance in critically ill patients

AIM

To evaluate and summarize the evidence for prevention and management of enteral feeding intolerance in critically ill patients and provide reference for clinical practice.

DESIGN

This study was an evidence summary followed by the evidence summary reporting standard of Fudan University Center for Evidence-based Nursing.

METHODS

Current literatures were systematically searched for the best evidence for prevention and management of enteral feeding intolerance in critically ill patients. Literature types included clinical guidelines, best practice information sheets, expert consensuses, systematic reviews, evidence summaries and cohort studies.

DATA SOURCES

UpToDate, BMJ Best Practice, Joanna Briggs Institute, Guidelines International Network, National Institute for Health and Care Excellence, Registered Nurses Association of Ontario, Scottish Intercollegiate Guidelines Network, the Cochrane Library, Embase, PubMed, Sinomed, Web of Science, Yi Maitong Guidelines Network, DynaMed, MEDLINE, CNKI, WanFang database, Chinese Medical Journal Full-text Database, European Society for Clinical Nutrition and Metabolism website, the American Society for Parenteral and Enteral Nutrition website were searched from January 2012 to April 2023.

RESULTS

We finally identified 18 articles that had high-quality results. We summarized the 24 pieces of best evidence from these articles, covering five aspects: screening and assessment of the risk of enteral nutritional tolerance; formulation of enteral nutrition preparations; enteral nutritional feeding implementation; feeding intolerance symptom prevention and management; and multidisciplinary management. Of these pieces of evidence, 19 were 'strong' and 5 were 'weak', 7 pieces of evidence were recommended in level one and 4 pieces of evidence were recommended in level two.

CONCLUSION

The following 24 pieces of evidence for prevention and management of enteral feeding intolerance in critically ill patients were finally recommended. However, as these evidences came from different countries, relevant factors such as the clinical environment should be evaluated before application. Future studies should focus on more specific symptoms of feeding intolerance and more targeted prevention design applications.

IMPLICATIONS FOR THE PROFESSION AND PATIENT CARE

The clinical medical staffs are recommended to take evidence-based recommendations for the implementation of standardized enteral nutrition to improve patient outcomes and decrease gastrointestinal intolerance in critically ill patients.

IMPACT

The management of enteral nutrition feeding intolerance has always been a challenge and difficulty in critically ill patients. This study summarizes 24 pieces of the best evidence for prevention and management of enteral nutrition feeding intolerance in critically ill patients. Following and implementing these 24 pieces of evidence is beneficial to the prevention and management of feeding intolerance in clinical practice. The 24 pieces of evidence include five aspects, including screening and assessment of the risk of enteral nutritional tolerance, formulation of enteral nutrition preparations, enteral nutritional feeding implementation, feeding intolerance symptom prevention and management and multidisciplinary management. These five aspects constitute a good implementation process. Screening and assessment of enteral nutritional tolerance throughout intervention are important guarantees for developing a feasible nutrition program in critically ill patients. This study will be benefit to global medical workers in the nutritional management of critically ill patients.

REPORTING METHOD

This evidence summary followed the evidence summary reporting specifications of Fudan University Center for Evidence-based Nursing, which were based on the methodological process for the summary of the evidence produced by the Joanna Briggs Institute (JBI). The reporting specifications include problem establishment, literature retrieval, literature screening, literature evaluation, the summary and grading of evidence and the formation of practical suggestions. This study was based on the evidence summary reporting specifications of the Fudan University Center for the Evidence-based Nursing, the register name is 'Best evidence summary for prevention and management of enteral feeding intolerance in critically ill patients', the registration number is 'ES20231823'.

A new high protein-to-energy enteral formula with a whey protein hydrolysate to achieve protein targets in critically ill patients: a prospective observational tolerability study

OBJECTIVES

Current guidelines and expert recommendations stress the need to implement enteral feeds with a higher protein-to-energy ratio to meet protein requirements as recommended while avoiding gastrointestinal side effects and energy overfeeding in ICU patients.

MATERIALS AND METHODS

Prospective tolerability study in 18 critically ill patients with a high protein formula (high protein-to-energy (HP:E) formula = Fresubin® Intensive; HPG) compared to a contemporary matched conventional therapy group (CTG). The primary outcome was GI intolerance defined as ≥300 ml daily gastric residual volume (GRV), vomiting, or diarrhea on days 1 and 2. Secondary outcomes were the percentage of patients reaching their protein target on day 4 and overall protein intake.

RESULTS

Groups were comparable regarding demographic characteristics, disease severity, organ failures, mechanical ventilation, and NUTRIC score at baseline. Eighteen patients completed the 4-day feeding period. The number of events of GRV of ≥300 ml/day was equal in both groups (33.3%). The incidence of diarrhea and vomiting was low in the HPG (two patients concerned). EN did not need to be discontinued due to intolerance in any group. Seventy-two percent of patients reached protein targets ≥1.3 g/kgBW/d within 4 days after initiation of enteral feeding, which was superior to the CTG (33%). Post-hoc testing showed group differences of protein intake between HPG and CTG were significant at t = 72 h and t = 96 h. Energy targets were met in both groups.

CONCLUSION

The HP:E formula containing 33% whey protein hydrolysate is well tolerated in this tolerability study. Due to the HP:E ratio protein targets can be reached faster. Larger randomized trials are needed to confirm preliminary results.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT02678325. Registered 2 May 2016.

Evidence on nutritional therapy practice guidelines and implementation in adult critically ill patients: A systematic scoping review

BACKGROUND

The rapid increase in disease-related malnutrition makes it almost impossible for healthcare practitioners and policymakers to keep up with its negative consequences. Consequently, healthcare organisations and decision-makers have called for accelerated and double-duty actions to manage the double burden of malnutrition. Guidelines standardise nutritional practices, improve nutritional status and reduce hospitalisation duration and save costs.

OBJECTIVES

A systematic scoping review of the nutritional therapy practice guidelines and implementation in critically ill adults was undertaken to identify the breadth of literature on the topic, summarise findings and identify gaps.

METHODS

A comprehensive search strategy was designed and implemented to identify eligible studies from eight databases, websites of organisations, government departments and academic platforms. Reference lists of included studies were also searched for relevant studies. We assessed the quality of included studies, completed a descriptive numerical summary and analysed them.

RESULTS

In total, 1555 titles and 101 abstracts were screened, 65 underwent full text review and 19 were retained for data extraction. Studies scored average to high on quality assessment, and a summary of characteristics of included studies is presented. Nutritional therapy practice guidelines are considered a proactive strategy for enhanced, uniform and individualised nutritional practices and factors that influence implementation were identified.

CONCLUSIONS

A gap exists between research recommendations and actual practice despite the growing interest in implementation of nutritional therapy guidelines in critical care. There is a need for more research to evaluate the practicality of available guidelines.

Seven Deadly Sins of Nutrition Therapy in Critically Ill Patients

This article presents 7 nutrition steps that, if not followed by the clinical staff, may be metaphorically considered as "7 deadly sins" of nutrition therapy. In this review, we suggest approaches that must be avoided or accomplished to increase compliance with the "Ten Commandments" of good nutrition practice in the intensive care setting. Multiple aggressive and simultaneous sets of therapies are implemented in the intensive care setting, which include nutrition and metabolic support as important components in these therapies. "Sins" should be remembered as a mnemonic device for nutrition standard care in the intensive care unit; this incorporates nutrition adequacy and protocol adherence.

Increased Efficacy and Safety of Enteral Nutrition Support with a Protocol (ASNET) in Noncritical Patients: A Randomized Controlled Trial

BACKGROUND

Unintentional underfeeding is common in patients receiving enteral nutrition (EN), and is associated with increased risk of malnutrition complications. Protocols for EN in critically ill patients have been shown to enhance adequacy, resulting in better clinical outcomes; however, outside of intensive care unit (ICU) settings, the influence of a protocol for EN is unknown.

OBJECTIVE

To evaluate the efficacy and safety of implementing an EN protocol in a noncritical setting.

DESIGN

Randomized controlled clinical trial.

PARTICIPANTS AND SETTINGS

This trial was conducted from 2014 to 2016 in 90 adult hospitalized patients (non-ICU) receiving exclusively EN. Patients with carcinomatosis, ICU admission, or <72 hours of EN were excluded.

INTERVENTION

The intervention group received EN according to a protocol, whereas the control group was fed according to standard practice.

MAIN OUTCOME MEASURES

The proportion of patients receiving ≥80% of their caloric target at Day 4 after EN initiation.

STATISTICAL ANALYSES PERFORMED

Student t test or Wilcoxon rank-sum test were used for continuous variables and the difference between the groups in the time to receipt of the optimal amount of nutrition was analyzed using Kaplan-Meier curves.

RESULTS

Forty-five patients were randomized to each group. At Day 4 after EN initiation, 61% of patients in the intervention arm had achieved the primary end point compared with 23% in the control group (P=0.001). In malnourished patients, 63% achieved the primary end point in the intervention group compared with 16% in the control group (P=0.003). The cumulative deficit on Day 4 was lower in the intervention arm compared with the control arm: 2,507 kcal (interquartile range [IQR]=1,262 to 2,908 kcal) vs 3,844 kcal (IQR=2,620 to 4,808 kcal) (P<0.001) and 116 g (IQR=69 to 151 g) vs 191 g (IQR=147 to 244 g) protein (P<0.001), respectively. The rates of gastrointestinal complications were not significantly different between groups.

CONCLUSIONS

Implementation of an EN protocol outside the ICU significantly improved the delivery of calories and protein when compared with current standard practice without increasing gastrointestinal complications.

Effects on nutritional care practice after implementation of a flow chart-based nutrition support protocol in an intensive care unit

Background

Enteral nutrition (EN) is associated with improved outcome in critically ill patients and is more affordable. We compared nutritional care practice in our ICU before and after modification of our nutrition support protocol: Several comprehensive documents were substituted with one flow chart and early EN was encouraged.

Design

Retrospective observational study.

Methods

Nutritional data were collected from admission up to 7 days in 25 patients before and 25 patients after protocol modification.

Results

The percentage of patients receiving EN within 72 hr of admission increased from 64% before to 88% after protocol modification. Cumulative percentage energy from EN during ICU days 1–4 increased from 26–89% of total kcal. Overall amount of nutrition administered enterally increased, with a corresponding marked decline in use of parenteral nutrition. Pre‐modification, >80% of patients received >65% of their calculated nutrition requirements by ICU Day 4; post‐modification this goal was achieved by Day 7.

Implementation of Nutrition Support Guidelines May Affect Energy and Protein Intake in the Pediatric Intensive Care Unit

BACKGROUND

Critically ill children are at risk of developing malnutrition, and undernutrition is a risk factor for morbidity and mortality.

OBJECTIVE

The study evaluated changes in the energy and protein intake before and after implementation of nutrition support (NS) guidelines for a pediatric critical care unit (PICU).

DESIGN

This retrospective study documented energy and protein intake for the first 8 days of PICU stay. Basal metabolic rate and protein needs were estimated by Schofield and American Society for Parenteral and Enteral Nutrition Guidelines, respectively.

PARTICIPANTS/SETTING

Three hundred thirty-five children from August to December 2012 (pre-implementation) and 185 from October to December 2013 (post-implementation).

INTERVENTION

Implementation of NS Guidelines.

MAIN OUTCOME MEASURES

Changes in actual energy and protein intake in the post- compared with the pre-Implementation period.

STATISTICAL ANALYSIS PERFORMED

Unpaired t tests, Pearson's χ(2) (unadjusted analysis) were used. Logistic regressions were used to estimate odds ratios and 95% confidence intervals for protein and energy intake, adjusted for age, sex, and Pediatric Risk of Mortality score.

RESULTS

After the implementation of guidelines, significant improvements were seen during days 5 through 8 in energy intake among children 2 years of age and older, and in protein intake in both age groups (P<0.05). For the 8-day period, statistically or clinically significant improvements occurred in the cumulative protein deficit/kg/day, as follows: younger than 2-year-olds, -1.5±0.7 g/kg/day vs -1.3±0.8 g/kg/day, P=0.02; 2-year-olds or older, -1.0±0.6 g/kg/day vs -0.7±0.8 g/kg/day, P=0.01; and for the energy deficit/kg/d in 2-year-olds and older, -17.2±13.6 kcal/kg/day vs -13.3±18.1 kcal/kg/day, unpaired t test, P=0.07, in the pre- vs post-implementation period, respectively.

CONCLUSIONS

The implementation of NS guidelines was associated with improvements in total energy in 2-year-olds and older and protein in younger than 2 and 2 years and older children by days 5 through 8, and protein deficits were significantly lower in the post- vs the pre-implementation period. The implementation of NS guidelines may have had a positive effect on improving NS in critically ill children.

Effects of implementation of a computerized nutritional protocol in mechanically ventilated critically ill patients: A single-centre before and after study

INTRODUCTION

Optimal nutrition, defined as adequate intake of energy, macronutrients -especially proteins- and micronutrients impacts on outcome of patients admitted to the Intensive Care Unit (ICU). However, both nutrition below and over target have been associated with increased morbidity and mortality. Computerized nutrition protocols may help to improve nutrition adequacy. In July 2014 a computerized nutritional protocol was implemented in our ICU. We designed a study to address the effects of this protocol implementation on energy and protein adequacy and outcome.

METHODS

A retrospective pre-post analysis of nutrition adequacy in adult mechanically ventilated critically ill patients before and after the implementation of an electronic nutritional protocol to initiate feeding and with hourly feedback. Primary outcome was adequacy of total caloric intake from day 2-7, secondary outcomes were adequacy of protein intake, clinical outcome results (length of ICU and hospital stay, ICU and hospital mortality, duration of tube feeding, duration of mechanical ventilation, number of patients with parenteral nutrition), and glucose and electrolyte abnormalities.

RESULTS

In total 146 patients were included (73 patients before and 73 patients after implementation). Before implementation we encountered more patients who were fed above target (actual caloric intake >110% of target) than after implementation (during day 2-7: 12% vs. 3%, P = 0.029) without significant reduction of protein intake (daily means during day 2-7: 1.18 g/kg vs. 1.08 g/kg, P = 0.09). Only on day 6, significantly more patients were fed on target after implementation (80-110%; 47% vs. 67%, P = 0.028). No differences in numbers of patients who were fed below target (<80%) were found. Numbers of patients with hypokalaemia after implementation (59% vs. 38%, P = 0.013) were lower. The incidence of electrolyte abnormalities (hypernatraemia, hyponatraemia and hypokalaemia) was lower after implementation, however hypomagnesaemia incidence increased. No statistical significant differences in clinical outcome were observed.

CONCLUSIONS

The implementation of an electronic nutritional protocol to initiate feeding with hourly feedback in our ICU reduced the rate of mechanically ventilated patients fed above target without reducing protein intake or increasing the rates of feeding below target, while reducing the incidence of electrolyte abnormalities. No statistical significant differences in other clinical outcomes were observed.

Enteral nutrition in the prevention and treatment of pressure ulcers in adult critical care patients

Prevention and healing of pressure ulcers in critically ill patients can be especially challenging because of the patients' burden of illness and degree of physiological compromise. Providing adequate nutrition may help halt the development or worsening of pressure ulcers. Optimization of nutrition can be considered an essential ingredient in prevention and healing of pressure ulcers. Understanding malnutrition in critical care patients, the effect of nutrition on wound healing, and the application of evidence-based nutritional guidelines are important aspects for patients at high risk for pressure ulcers. Appropriate screenings for nutritional status and risk for pressure ulcers, early collaboration with a registered dietician, and administration of appropriate feeding formulations and micronutrient and macronutrient supplementation to promote wound healing are practical solutions to improve the nutritional status of critical care patients. Use of nutritional management and enteral feeding protocols may provide vital elements to augment nutrition and ultimately result in improved clinical outcomes.

Enhanced Protein-Energy Provision via the Enteral Route in Critically Ill Patients (PEP uP Protocol): A Review of Evidence

Nutrition support is an integral part of care among critically ill patients. However, critically ill patients are commonly underfed, leading to consequences such as increased length of hospital and intensive care unit stay, time on mechanical ventilation, infectious complications, and mortality. Nevertheless, the prevalence of underfeeding has not resolved since the first description of this problem more than 15 years ago. This may be due to the traditional conservative feeding approaches. A novel feeding protocol (the Enhanced Protein-Energy Provision via the Enteral Route Feeding Protocol in Critically Ill Patients [PEP uP] protocol) was proposed and proven to improve feeding adequacy significantly. However, some of the components in the protocol are controversial and subject to debate. This article is a review of the supporting evidences and some of the controversy associated with each component of the PEP uP protocol.

Malnutrition in the ICU patient population

Malnutrition has been identified as a cause for disease as well as a condition resulting from inflammation associated with acute or chronic disease. Malnutrition is common in acute-care settings, occurring in 30% to 50% of hospitalized patients. Inflammation has been associated with malnutrition and malnutrition has been associated with compromised immune status, infection, and increased intensive care unit (ICU) and hospital length of stay. The ICU nurse is in the best position to advocate for appropriate nutritional therapies and facilitate the safe delivery of nutrition.

Early enteral nutrition within 24 hours or between 24 and 72 hours for acute pancreatitis: evidence based on 12 RCTs

BACKGROUND

Although (EEN) is a relatively safer route by which to feed patients with severe acute pancreatitis (SAP) or predicted SAP (pSAP) compared to total parental nutrition (TPN), the appropriate starting time for EEN administration after admission is still controversial. This study pooled all relevant studies to assess the complications associated with EEN by stratifying relevant RCTs into subgroups according to the starting time (<24 h or between 24 and 72 h after admission).

MATERIAL/METHODS

Relevant studies were searched for among 5 databases. The association between intervention and complications, including pancreatic infection, mortality, hyperglycemia, organ failure, and catheter-related septic complications, were assessed by using pooled risk ratio (RR) and the corresponding 95% confidential interval (CI).

RESULTS

Twelve RCTs were identified through our literature search. Pooled analysis showed that EEN, but not TPN or delayed enteral nutrition (DEN), is associated with reduced risk of pancreatic infection, mortality, organ failure, hyperglycemia, and catheter-related septic complications. EEN within 24 h of admission presented significantly better outcome in morality than EEN between 24 and 72 h. However, no significant heterogeneity was observed in the risk of pancreatic infection, organ failure, hyperglycemia, and catheter-related septic complications between the 2 subgroups.

CONCLUSIONS

If the patients are reasonably expected to have high compliance to EN therapy, it could be considered as early as possible.

Use of a nutrition support protocol to increase enteral nutrition delivery in critically ill patients

BACKGROUND

Early enteral nutrition is recommended for patients in intensive care units, but nutrition provision is often hindered by a variety of unit-specific problems.

OBJECTIVES

To evaluate the impact of a nutrition support protocol on nutrition prescription and delivery in the intensive care unit.

METHODS

Nutrition-related data from 73 patients receiving mechanical ventilation who were treated in an adult medical intensive care unit before introduction of an enteral nutrition support protocol were retrospectively compared with data for 87 patients admitted after implementation of the protocol.

RESULTS

After implementation of the protocol, enteral nutrition was started significantly earlier (P = .007) and enteral feeding goals were reached significantly faster (6 vs 10 days, P < .001) than before. Prescription of enteral nutrition on the first day of invasive mechanical ventilation increased from 38% before to 54% after (P = .03) implementation of the protocol. Prescribed and delivered nutrition doses on the first 2 days of mechanical ventilation also increased significantly (P < .001) after the protocol was implemented. Nasojejunal feeding tubes were used in 52% of patients before and 56% of patients after protocol implementation P = .63). Jejunal tubes were placed earlier after the protocol was implemented than before (median 5 vs 6.5 days), and when a jejunal tube was in place, feeding goals were reached faster (median 2 vs 3 days, P = .002).

CONCLUSION

Implementing an enteral nutrition support protocol shortened the time to reach feeding goals. Jejunal feeding tubes were necessary in more than half of the patients, and with a jejunal feeding tube in place, feeding goals were reached rapidly.

Position paper: timely interventions in severe acute pancreatitis are crucial for survival

Severe acute pancreatitis has high mortality, but multiple and timely interventions can improve survival. Early in the course of the disease aggressive fluid resuscitation is needed for the prevention and treatment of shock. In conjunction with leaking capillaries this results in increased tissue edema, which may lead to intra-abdominal hypertension and abdominal compartment syndrome. Invasive hemodynamic monitoring is essential for optimizing fluid therapy while monitoring of intra-abdominal pressure is necessary for identification patients at risk of developing abdominal compartment syndrome. Abdominal compartment syndrome develops usually within the first days after hospitalization. Conservative treatment modalities are useful in prevention but also in the treatment of abdominal compartment syndrome. If conservative management fails surgical decompression of abdomen may be needed. Multiple organ dysfunction syndrome and increased intra-abdominal pressure predispose patients with severe pancreatitis to secondary infections. Extrapancreatic infections predominate during the first week of the disease, whereas infection of pancreatic necrosis usually develops later. Early enteral nutrition reduces the risk of infections whereas advantage of prophylactic antibiotics is lacking evidence. Surgery for infected pancreatic necrosis is associated with high mortality when performed within the first two weeks of the disease. Therefore surgery should be postponed as late as possible, preferably later than four weeks after disease onset.