Enteral nutrition interruptions in critically ill patients: A prospective study on reasons, frequency and duration of interruptions of nutritional support during ICU stay

Early Feeding in Critical Care - Where Are We Now?

The aim to avoid underfeeding has resulted in relative overfeeding of patients in the early phase of critical illness, worsening instead of improving outcomes. Negative randomised controlled trials have triggered mechanistic studies to investigate possible mechanisms explaining harm, allowing more scientific interpretation of many unexpected results during the last decades. Whereas individualized evidence-based approach to nutrition is still only rarely available, discussing and understanding of pathophysiological mechanisms should assist in decision-making in clinical practice. Further exploration of mechanisms of harm and benefit, as well as development of new technologies are needed to better plan future nutrition studies.

Causes and impacts of interrupted enteral nutrition in critically ill patients: A secondary analysis of a cluster-randomized controlled trial

BACKGROUND

Malnutrition due to interruption of enteral nutrition remains a prevalent issue in the intensive care unit (ICU).

AIM

This study aimed to determine the frequency and causes of enteral nutrition interruption (ENI)and its impact on implementing enteral nutrition.

STUDY DESIGN

This is a secondary analysis of a multicentre, cluster-randomized controlled trial (N = 2772). This secondary analysis included patients in the ICU for at least 72 h and receiving total enteral nutrition. The causes of ENI were defined as (1) feeding intolerance, (2) diagnostic and therapeutic procedures and (3) others. Multiple linear regression analyses investigated the association between ENI and nutrition intake.

RESULTS

A total of 1331 patients were included for analysis. Approximately 18.63% of the patients experienced at least one episode of ENI. The main cause of ENI was diagnostic and therapeutic procedures. Energy intake was 17.54 ± 6.85 versus 16.64 ± 7.06 (p = .065) among patients with and without ENI, and the protein intake was 0.69 ± 0.27 versus 0.64 ± 0.27 (p = .016). Multiple linear regression analysis revealed that ENI was significantly associated with diminishing energy and protein intake (B = -1.012, 95% CI -1.857 to -0.167, p = .019; B = -0.050, 95% CI -0.083 to -0.017, p = .003, respectively).

CONCLUSIONS

Based on this multicentre study about ENI, the incidence of interruptions in enteral nutrition was 18.6%, with diagnostic and therapeutic procedures being the leading causes. The occurrence of interruptions in the delivery of enteral nutrition leads to a reduction in the nutritional intake of critically ill patients.

RELEVANCE TO CLINICAL PRACTICE

Critical care nurses should establish comprehensive nutrition support protocols and strengthen the training of department nurses, equipping them with the skills to effectively prevent and manage ENI. This is essential for actively achieving feeding goals and improving the outcomes of ICU patients.

Early Adequate Nutrition in ICU Is Associated with Survival Gain : Retrospective Cohort Study in Patient with Traumatic Brain Injury

OBJECTIVE

Patients with traumatic brain injury (TBI) commonly exhibit a poor mental health status and can easily develop aspiration pneumonia. Thus, early proper nutrition through oral or tube feeding is difficult to achieve, leading to malnutrition. However, evidence regarding early nutritional support in the intensive care unit (ICU) is lacking. We aimed to assess the effect of early nutrition in patients with TBI admitted to the ICU.

METHODS

Data of adult patients with TBI admitted to the trauma ICU of a regional trauma center in Korea between 2022 and 2023 were retrospectively analyzed. Those with ICU stay <7 days, younger than 18 years, and with underlying diseases that could alter baseline metabolism, were excluded. Nutritional support on day 4 of ICU admission was measured. The patients were classified into mortality and survival groups, and risk factors for mortality were evaluated. Subgroup analyses were performed based on TBI severity.

RESULTS

Overall, 864 patients were diagnosed with acute TBI, of whom 227 were included in this study. The mortality rate in the study population was 15% (n=34). Those in the survival group were younger, had longer hospital stays, had a higher initial Glasglow coma scale (GCS) score, and had a higher intake of calorie supplements than those in the mortality group. In a subgroup analysis of patients with non-severe TBI (GCS >8), total calorie intake (751.4 vs. 434.2 kcal, p=0.029), total protein intake (37.5 vs. 22.1 g, p=0.045), and ratio of supplied to target calories (0.49 vs. 0.30, p=0.047) were higher in the survival group than in the mortality group. Logistic regression analysis revealed that calorie intake (B=-0.002, p=0.040) and initial hemoglobin level (B=-0.394, p=0.005) were risk factors for mortality in patients with non-severe TBI.

CONCLUSION

More calories were supplied to the survival group than the mortality group among patients with TBI. Additionally, logistic regression analysis showed that increased calorie supply was associated with reduced mortality in patients with non-severe TBI. The mortality group had low protein intake; however, this did not emerge as a risk factor for mortality. Early sufficient nutritional support improves the prognosis of patients with TBI.

Cognitive influencing factors of ICU nurses on enteral nutrition interruption: a mixed methods study

BACKGROUND

The incidence of clinically avoidable enteral nutrition interruptions is high. ICU nurses, as the implementers and monitors of enteral nutrition, have a close relationship between their cognitive level of enteral nutrition interruption and the incidence of enteral nutrition interruption. The level of ICU nurses' cognition of enteral nutrition interruption and the key factors influencing the level of ICU nurses' cognition of enteral nutrition interruption are not known.

OBJECTIVES

This study aims to explore the cognitive level of ICU nurses on enteral nutrition interruption and delve into the key factors that affect their cognitive level from the perspective of management.

DESIGN

A sequential explanatory mixed methods research design was used.

METHODS

With the convenience sampling method, an online survey questionnaire was distributed to ICU nurses in Chongqing, and 336 valid questionnaires were collected. After the survey, ICU managers were invited to participate in qualitative interviews, in which 10 participants from five hospitals completed face-to-face individual semi-structured interviews and were analyzed with thematic analysis.

RESULTS

The survey found that ICU nurses had a good level of cognition towards enteral nutrition interruption but poor knowledge about the definition, causes, and consequences of enteral nutrition interruption, as well as negative attitudes toward active learning, assessment, and communication. And the longer work time in the ICU, joining the nutrition team, receiving systematic training, and acquiring relevant knowledge from academic journals more frequently were favorable to improving ICU nurses' knowledge level of enteral nutrition interruption. Personal interviews further identified the key factors affecting their cognitive level, including (1) lack of knowledge, (2) lack of proactive thinking, (3) lack of enteral nutrition management programs, and (4) lack of quality management tools for enteral nutrition interruption.

CONCLUSION

Although ICU nurses demonstrate a relatively high level of cognition, there is still room for improvement. ICU administrators must take specific measures to improve the knowledge of ICU nurses, especially in non-tertiary hospitals, in order to prevent nurse-induced enteral nutrition interruption in all ICUs and improve medical quality.

TRIAL REGISTRATION

Not applicable.

Understanding nursing perspective towards barriers to the optimal delivery of enteral nutrition in intensive care settings

BACKGROUND

The management process of Enteral Nutrition (EN) typically involves the interaction between a team of health care practitioners. Nurses being the closest to the patients, have crucial responsibilities and play a major role in feeding delivery along with other medical treatments. This study was conducted to investigate the perception of the nurses working in adult and paediatric intensive care Units (ICUs) regarding the EN barriers and identify the factors that influenced their perception.

METHODS

The data in this cross-sectional study was collected via online survey between 15 October 2021 and January 2022. All nurses working in adult or paediatric ICUs across Saudi Arabia were eligible to participate. The tool used for the data collection was adapted from Cahill et al. (2016) and then reviewed and modified by the researchers. The survey collected information about the demographics of the nurses, and it included 24 potential EN barriers where the participants were asked to rate their importance on a scale from 1 to 5. Descriptive statistics were performed to describe the variables, univariant analysis were performed to compare the perceptions of the nurses regarding the EN barriers based on their characteristics followed by stepwise linear regression analysis.

RESULTS

A total of 136 nurses working in adult and paediatric ICUs were included in this study. The results showed that the most important barriers as perceived by the nurses was "Frequent displacement of feeding tube, requiring reinsertion" [3.29 ± 1.28], "Delays in initiating motility agents in patients not tolerating enteral nutrition" [3.27 ± 1.24] and "Enteral formula not available on the unit". [3.27 ± 1.24]. Our results showed that the responses of the participants statistically varied based on their work settings, gender, region, and educational level for some items in the survey (P-value ≤ 0.05). In the regression analysis, gender was the only variable statistically influenced the total Likert rating scores of the participants (r = -0.213, p-value = 0.013).

CONCLUSION

This study identified several barriers that exist in the nursing practice of EN in critical care settings. There are distinct differences in the perception of the nurses to these barriers based on their characteristics. Understanding such differences is important for implementing future strategies for units that needed the most help in prioritizing EN delivery.

Factors Associated with Interruptions of Enteral Nutrition and the Impact on Macro- and Micronutrient Deficits in ICU Patients

BACKGROUND AND AIM

Feeding interruptions in critical care patients are often unjustified. We aimed to determine the causes, duration, and frequency of enteral nutrition interruptions (ENIs) and to assess macronutrients and antioxidant deficits according to European Society of Parenteral Enteral Nutrition (ESPEN) guidelines.

METHODS

We prospectively enrolled Intensive Care Unit (ICU) patients admitted for more than 48 h with an inability to orally eat from April to December 2019. The type of enteral nutrition, the number of calories administered, the time of feeding initiation, the reasons for delaying feeding, and the causes for ENI were recorded.

RESULTS

81 patients were enrolled, with a median duration of ENIs of 5.2 (3.4-7.4) hours/day. Gastric residual volume (GRV) monitoring-a highly controversial practice-was the most common cause of ENI (median duration 3 (2.3-3) hours/day). The mean energy intake was 1037 ± 281 kcal/day, while 60.5% of patients covered less than 65% of the total energy needs (1751 ± 295 kcal/day, according to mean Body Mass Index (BMI)). The median daily protein intake did not exceed 0.43 ± 0.3 gr/kg/day of the actual body weight (BW), whereas ESPEN recommends 1.3 gr/kg/day for adjusted BW (p < 0.001). The average administration of micronutrients and antioxidants (arginine, selenium, zinc, vitamins) was significantly less than the dietary reference intake (p < 0.01).

CONCLUSION

ENIs lead to substantial caloric, protein, and antioxidant deficits.