A review of feeding intolerance in critically ill children

© 2018, The Author(s). Ensuring optimal nutrition is vital in critically ill children and enteral feeding is the main route of delivery in intensive care. Feeding intolerance is the most commonly cited reason amongst pediatric intensive care unit healthcare professionals for stopping or withholding enteral nutrition, yet the definition for this remains inconsistent, nebulous, and entirely arbitrary. Not only does this pose problems clinically, but research in this field frequently uses feeding intolerance as an endpoint and the heterogeneity in this definition makes the comparison of studies difficult and meta-analysis impossible. We reviewed the use of, and definitions of, the term feed intolerance in pediatric intensive care research papers in the last 20years. Gastric residual volume remains the most common factor used to define feed intolerance, despite the lack of evidence for this. Healthcare professionals would benefit from further education to improve their awareness of the limitations of the markers to define feeding intolerance, and the international PICU community needs to agree a consistent definition of this phenomenon to improve consistency in both practice and research. Conclusion: This paper will provide a narrative review of the definitions of, evidence for, and markers of feeding intolerance in critically ill children.What is Known?:• Feeding intolerance is a commonly cited reason amongst pediatric intensive care unit healthcare professionals for stopping or withholding enteral nutrition.• There is no agreed definition for feeding intolerance in critically ill children.What is New?:• This paper provides an up to date review of the definitions of, evidence for, and markers of feeding intolerance in critically ill children.• Despite no evidence, gastric residual volume continues to drive clinical bedside decisions about enteral feeding and feeding tolerance

Near-infrared spectroscopy after high-risk congenital heart surgery in the paediatric intensive care unit

Objective: To establish whether the use of near-infrared spectroscopy is potentially beneficial in high-risk cardiac infants in United Kingdom paediatric intensive care units. Design: A prospective observational pilot study. Setting: An intensive care unit in North West England. Patients: A total of 10 infants after congenital heart surgery, five with biventricular repairs and five with single-ventricle physiology undergoing palliation. Interventions: Cerebral and somatic near-infrared spectroscopy monitoring for 24 hours post-operatively in the intensive care unit. Measurement and main results: Overall, there was no strong correlation between cerebral near-infrared spectroscopy and mixed venous oxygen saturation (r=0.48). At individual time points, the correlation was only strong (r=0.74) 1 hour after admission. The correlation was stronger for the biventricular patients (r=0.68) than single-ventricle infants (r=0.31). A strong inverse correlation was demonstrated between cerebral near-infrared spectroscopy and serum lactate at 3 of the 5 post-operative time points (1, 4, and 12 hours: r=-0.76, -0.72, and -0.69). The correlation was stronger when the cerebral near-infrared spectroscopy was 60%, which was r=-0.50. No correlations could be demonstrated between (average) somatic near-infrared spectroscopy and serum lactate (r=-0.13, n=110) or mixed venous oxygen saturation and serum lactate. There was one infant who suffered a cardiopulmonary arrest, and the cerebral near-infrared spectroscopy showed a consistent 43 minute decline before the event. Conclusions: We found that cerebral near-infrared spectroscopy is potentially beneficial as a non-invasive, continuously displayed value and is feasible to use on cost-constrained (National Health Service) cardiac intensive care units in children following heart surgery

A survey examining the use of mechanical insufflation-exsufflation on adult intensive care units across the UK

Introduction: Despite potential benefits, it is not known how widely physiotherapists use mechanical insufflation-exsufflation devices on UK adult intensive care units. This survey aimed to describe mechanical insufflation-exsufflation use in UK adult intensive care units. Methods: Cross-sectional electronic survey of physiotherapists working in a permanent post on adult intensive care units. Results: One hundred and sixty-six complete surveys were available for analysis, reflecting a diverse geographical spread. Nearly all (98%; 163/166) clinicians had access to mechanical insufflation-exsufflation. The estimated frequency of use varied, with the majority reporting weekly or monthly use (52/163, 32%; 50/163, 31%, respectively). Nearly all clinicians (99%) used mechanical insufflation-exsufflation with extubated patients. In contrast, around half of respondents (86/163, 53%) used mechanical insufflation-exsufflation with intubated patients, with a range of perceived barriers reported. Conclusions: Mechanical insufflation-exsufflation devices are widely available on UK adult intensive care units, with use more common in extubated patients. Barriers to mechanical insufflation-exsufflation use in the intubated population warrant further investigatio

A national survey of sedation practice and clinicians’ attitudes regarding sedation-related research in the UK paediatric intensive care units

Aims: Research involving analgo-sedation is a priority for parents and professionals in paediatric intensive care, and current guidelines are based on low-quality evidence. Future research will require an understanding of current practice and research priorities of healthcare professionals. This survey aimed to identify perceived barriers to research, describe the current UK analgo-sedation practice and assess outcome priorities for future research. Methods: A 26-question web-based survey was emailed to all Paediatric Critical Care Society members (n=1000) in April/May 2021. Responses were analysed either by ‘unit’ or at the individual respondent level. Questions related to four patient categories: ‘infant (< 3 months of age) ‘paediatric’ > 3 months of age, ‘cardiac’ and ‘non-cardiac’. Results: Two hundred sixteen healthcare professionals responded and responses were available from 100% of the UK paediatric intensive care units (n=29) for all questions. Most units (96%, 28/29) routinely use scoring systems for sedation adequacy but few routinely screen for delirium (24%, 7/29). The most highly prioritised outcome measure was the duration of mechanical ventilation. Respondents were most likely to agree to randomise paediatric general intensive care patients to trials comparing two different alpha agonists and least likely to randomise neonatal cardiac patients to trials comparing benzodiazepines with alpha agonists. The most common perceived barrier to research was unit familiarity with a particular regimen, followed by the perception that parents would not provide consent. Conclusions: This study provides a snapshot of the UK analgo-sedation practice and highlights the importance of public involvement in planning future trials, as well as consultation work across the spectrum of stakeholder clinicians to maximise the acceptability of study design

What impact did a Paediatric Early Warning system have on emergency admissions to the paediatric intensive care unit? An observational cohort study

Summary The ideology underpinning Paediatric Early Warning systems (PEWs) is that earlier recognition of deteriorating in-patients would improve clinical outcomes. Objective To explore how the introduction of PEWs at a tertiary children's hospital affects emergency admissions to the Paediatric Intensive Care Unit (PICU) and the impact on service delivery. To compare ‘in-house’ emergency admissions to PICU with ‘external’ admissions transferred from District General Hospitals (without PEWs). Method A before-and-after observational study August 2005–July 2006 (pre), August 2006–July 2007 (post) implementation of PEWs at the tertiary children's hospital. Results The median Paediatric Index of Mortality (PIM2) reduced; 0.44 vs 0.60 (p < 0.001). Fewer admissions required invasive ventilation 62.7% vs 75.2% (p = 0.015) for a shorter median duration; four to two days. The median length of PICU stay reduced; five to three days (p = 0.002). There was a non-significant reduction in mortality (p = 0.47). There was no comparable improvement in outcome seen in external emergency admissions to PICU. A 39% reduction in emergency admission total beds days reduced cancellation of major elective surgical cases and refusal of external PICU referrals. Conclusions Following introduction of PEWs at a tertiary children's hospital PIM2 was reduced, patients required less PICU interventions and had a shorter length of stay. PICU service delivery improved

Is paediatric endotracheal suctioning by nurses’ evidence based? An International Survey

Background: Endotracheal suction (ETS) is essential in intubated patients to prevent tube occlusion and is one of the most common nursing interventions performed in intensive care.Aim: To explore how paediatric endotracheal suctioning (ETS) practices reflect Evidence-based Practice (EBP) recommendations in Paediatric intensive care units (PICU) worldwide.Study design and methods: A cross-sectional electronic survey linked to a real patient suction episode. Nurses completed the survey following a recent ETS episode. EBP was defined based on four of the American Association for Respiratory Care (AARC) best evidence recommendations: pre-oxygenation before suction, use of a suction catheter no more than half the diameter of the tracheal tube, shallow depth of suction and the continuous suction applied upon withdrawal of the catheter. Participants included PICU nurses who performed ETS in children (0-17 years) excluding preterm neonates.Results: Four hundred and forty-six complete surveys were received from 20 countries. Most nurses (80%, 367/446) reported that their unit had local guidelines for ETS. The most common reason for suctioning (44%) was audible/visible secretions. Over half of ETS episodes (57%) used closed suction. When exploring the individual components of suction, 63% (282/446) of nurses pre-oxygenated their patient prior to suction, 71% (319/446) suctioned no further than 0.5cm past end of the endotracheal tube, 59% (261/446) used a catheter no more than half the diameter of the endotracheal tube and 78% (348/446) used continuous negative pressure. 24% of nurses gave patients an additional bolus of sedative, analgesic and/or muscle-relaxant medication prior to suction; this decision was not related to the child’s history of instability with suction, as there was no significant difference in those who reported patients had a history of being unstable with suction (p=0.80). 26% (117/446) of nurses complied with all four EBP components in the reported suctioning episode.Conclusions: Considerable variation in paediatric endotracheal suctioning practices exists internationally. While most nurses applied single components of evidence-based recommendations during ETT suctioning, just a quarter applied all four elements. Relevance for clinical practice: Nurses’ need to consider and strive to apply EBP principles to common nursing interventions such as ETS

Newly qualified Saudi nurses' ability to recognise the deteriorating child in hospital

Background: It is recognized that nurses' failure to recognize and respond promptly to deterioration in children's physiological status can result in increased morbidity and mortality. Aim: The aim of this study was to explore the ability of Saudi-educated, newly qualified nurses, working in paediatric wards, to recognize children's deterioration.Methods: A pilot study was carried out to assess nurses' responses to three clinical vignettes (deteriorating child, improving child and ambiguous scenarios). The nurses' ability to make a correct identification was captured using a 'Think Aloud' approach and quantified using a visual analogue scale. Results: Twenty-seven nurses in two geographical regions in Saudi Arabia participated. Only half the nurses (51·8%) correctly identified the deteriorating child vignette. Of those who could not, 37% were unsure and 11% responded incorrectly. No nurses correctly identified all three vignettes, and four nurses (15%) responded incorrectly to all vignettes. Conclusions: The recognition of the deteriorating child is complex, and even in non-stressful simulated scenarios using vignettes, many newly qualified nurses working with children failed to recognize clear signs of deterioration. A focused (culturally specific) educational intervention is being developed to target this, taking into account Saudi nurses' perceived education and training needs. Relevance to clinical practice: Newly qualified nurses working in paediatric wards frequently find it difficult to identify the deteriorating child