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Older individuals are at an increased risk of delayed recovery following a traumatic injury. Measurement of muscularity and frailty at hospital admission may aid with prognostication and risk stratification.

The impact of obesity on long-term survival after intensive care unit (ICU) admission with severe coronavirus disease 2019 (COVID-19) is unclear. We aimed to quantify the impact of obesity on time to death up to two years in patients admitted to Australian and New Zealand ICUs.

Background/Objectives: Traditional indirect calorimetry is unable to capture complete gas exchange in patients receiving venoarterial extracorporeal membrane oxygenation (VA ECMO). We aimed to determine the feasibility of using a modified indirect calorimetry protocol in patients receiving VA ECMO, report measured energy expenditure (EE) and compare EE to control critically ill patients. Subjects/Methods: Mechanically ventilated adult patients receiving VA ECMO were included. EE was measured within 72 h of VA ECMO commencement (timepoint one [T1]) and on approximately day seven of Intensive Care Unit (ICU) admission (timepoint two [T2]). Traditional indirect calorimetry via the ventilator was combined with calculations of oxygen consumption and carbon dioxide production derived from pre- and post-ECMO membrane blood gas analyses. Completion of ≥60% EE measurements was deemed feasible. Measured EE was compared between T1 and T2 and to control patients not receiving VA ECMO. Data is presented as n(%) and median[interquartile range (IQR)]. Results: Twenty-one patients were recruited; 16(76%) male, aged 55[42–64] years. The protocol was feasible to complete at T1 (14(67%)) but not at T2 (7(33%)) due to predominantly ECMO decannulation, extubation or death. EE was 1454[1213–1860] at T1 and 1657[1570–2074] kcal/d at T2 (P= 0.043). In patients receiving VA ECMO versus controls, EE was 1577[1434–1801] versus 2092[1609–2272] kcal/d, respectively (P= 0.056). Conclusion: Modified indirect calorimetry is feasible early in admission to ICU but is not possible in all patients receiving VA ECMO, especially later in admission. EE increases during the first week of ICU admission but may be lower than EE in control critically ill patients.

Based on the early international COVID-19 experience, it was anticipated that intensive care services and workforces in Australia would be placed under similar pressure. While surge capacity of medical and nursing workforces was estimated, little was known about baseline allied health staffing, making it difficult to estimate surge capacity and coordinate planning.

Meeting the nutritional requirements of critically ill infants and young children with breastmilk or formula alone is often challenging due to disease-related increased requirements and fluid restriction. ‘Feed modification’ is a nutrition therapy strategy to increase energy and protein density, and includes fortification of expressed breast milk, preparation of standard powdered formula at an increased concentration and utilisation of concentrated ready-to-feed liquid formulas. However, despite anecdotal evidence suggesting frequent and varied use internationally, the evidence for feed modification is unclear and has not been reviewed systematically. This article describes the methods for a scoping review to collate the key definitions, concepts, methods and evidence for use of modified feeds for increased energy and protein density as nutrition therapy in critically ill children.

The primary objective was to compare the intake of important micronutrients provided from enteral nutrition to critically ill patients with the Australia and New Zealand recommended dietary intakes. A secondary objective was to compare the upper levels of intake and investigate prespecified subgroups.

Critical illness leads to significant metabolic alterations that should be considered when providing nutritional support. Findings from key randomized controlled trials (RCTs) indicate that underfeeding (<70% of energy expenditure [EE]) during the acute phase of critical illness (first 7 days of intensive care unit [ICU] admission) may not be harmful and could instead promote autophagy and prevent overfeeding in light of endogenous energy production. However, the optimal energy target during this period is unclear and full starvation is unlikely to be beneficial. There are limited data regarding the effects of prolonged underfeeding on clinical outcomes in critically ill patients, but recent studies show that oral food intake is suboptimal both in the ICU and following discharge to the acute care setting. It is hypothesized that provision of full nutrition (70–100% of EE) may be important in the recovery phase of critical illness (>7 days of ICU admission) for promoting recovery and rehabilitation; however, studies on nutritional intervention delivered from ICU admission through hospital discharge are needed. The aim of this review is to provide a narrative synthesis of the existing literature on metabolic alterations experienced during critical illness and the impact of underfeeding on clinical outcomes in the critically ill adult patient.

Pandemics and the large-scale outbreak of infectious disease can significantly impact morbidity and mortality worldwide. The impact on intensive care resources can be significant and often require modification of service delivery, a key element which includes rapid expansion of the critical care workforce. Pandemics are also unpredictable, which necessitates rapid decision-making and action which, in the lack of experience and guidance, may be extremely challenging. Recognising the potential strain on intensive care units (ICUs), particularly on staffing, a working group was formed for the purpose of developing recommendations to support decision-making during rapid service expansion.

Guideline recommendations for nutrition therapy in critically ill obese adults are inconsistent. This study aimed to describe how dietitians working in an intensive care unit (ICU) in Australia and New Zealand (ANZ) approach managing the nutritional needs of an obese, critically ill adult.

Coronavirus disease 2019 (COVID-19) results from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The clinical features and subsequent medical treatment, combined with the impact of a global pandemic, require specific nutritional therapy in hospitalised adults. This document aims to provide Australian and New Zealand clinicians with guidance on managing critically and acutely unwell adult patients hospitalised with COVID-19. These recommendations were developed using expert consensus, incorporating the documented clinical signs and metabolic processes associated with COVID-19, the literature from other respiratory illnesses, in particular acute respiratory distress syndrome, and published guidelines for medical management of COVID-19 and general nutrition and intensive care. Patients hospitalised with COVID-19 are likely to have preexisting comorbidities, and the ensuing inflammatory response may result in increased metabolic demands, protein catabolism, and poor glycaemic control. Common medical interventions, including deep sedation, early mechanical ventilation, fluid restriction, and management in the prone position, may exacerbate gastrointestinal dysfunction and affect nutritional intake. Nutrition care should be tailored to pandemic capacity, with early gastric feeding commenced using an algorithm to provide nutrition for the first 5–7 days in lower-nutritional-risk patients and individualised care for high-nutritional-risk patients where capacity allows. Indirect calorimetry should be avoided owing to potential aerosole exposure and therefore infection risk to healthcare providers. Use of a volume-controlled, higher-protein enteral formula and gastric residual volume monitoring should be initiated. Careful monitoring, particularly after intensive care unit stay, is required to ensure appropriate nutrition delivery to prevent muscle deconditioning and aid recovery. The infectious nature of SARS-CoV-2 and the expected high volume of patient admissions will require contingency planning to optimise staffing resources including upskilling, ensure adequate nutrition supplies, facilitate remote consultations, and optimise food service management. These guidelines provide recommendations on how to manage the aforementioned aspects when providing nutrition support to patients during the SARS-CoV-2 pandemic.

Critically ill patients with a traumatic brain injury (TBI) may require prolonged intensive care unit (ICU) admission and hence receive greater exposure to hospital enteral nutrition. It is unknown if augmented energy delivery with enteral nutrition during ICU admission impacts quality of life in survivors or gastrointestinal tolerance during nutrition delivery in ICU.

Adverse changes in muscle health (size and quality) are common in patients receiving extracorporeal membrane oxygenation (ECMO). Nutrition delivery may attenuate such changes, yet the relationship with muscle health remains poorly understood. This study explored the association between energy and protein delivery and changes in muscle health measured using ultrasound from baseline to day 10 and 20 in patients receiving ECMO.

Use of high-flow nasal cannula (HFNC) and non-invasive ventilation (NIV) in the Intensive Care Unit (ICU) is increasing, yet reporting of nutrition intake, muscle thickness or recovery outcomes in this population is limited.

Significant investment in planning and training has occurred across the Australian healthcare sector in response to the COVID-19 pandemic, with a primary focus on the medical and nursing workforce. We provide a short summary of a recently published article titled “Surge capacity of Australian intensive care units associated with COVID-19 admissions” in the Medical Journal of Australiaand, importantly, highlight a knowledge gap regarding critical care specialised allied health professional (AHP) workforce planning in Australia. The unique skill set provided by critical care specialised AHPs contributes to patient recovery long after the patient leaves the intensive care unit, with management targeted at reducing disability and improving function, activities of daily living, and quality of life. Allied health workforce planning and preparation during COVID-19 must be considered when planning comprehensive and evidence-based patient care. The work by Litton et al. has highlighted the significant lack of available data in relation to staffing of critical care specialised AHPs in Australia, and this needs to be urgently addressed.

Noninvasive ventilation (NIV) is frequently used in the intensive care unit (ICU), yet there is a paucity of evidence to guide nutrition management during this therapy. Understanding clinicians' views on nutrition practices during NIV will inform research to address this knowledge gap.

The COVID-19 pandemic highlighted major challenges with usual nutrition care processes, leading to reports of malnutrition and nutrition-related issues in these patients.

Recommendations to facilitate evidence-based nutrition provision for critically ill children exist and indicate the importance of nutrition in this population. Despite these recommendations, it is currently unknown how well Australian and New Zealand (ANZ) paediatric intensive care units (PICUs) are equipped to provide nutrition care.

It is unknown whether increasing dietary protein to 1.2–2.0 g/kg/day as recommended in international guidelines compared to current practice improves outcomes in intensive care unit (ICU) patients. The TARGET Protein trial will evaluate this.

Data on nutrition delivery over the whole hospital admission in critically ill patients with COVID-19 are scarce, particularly in the Australian setting.

There is limited understanding of fasting practices and reported safety concerns for airway procedures in critically ill adults.

Objectives:To describe current nutrition delivery practices and to identify barriers to nutrition in patients receiving venovenous or venoarterial extracorporeal membrane oxygenation (ECMO) in multiple centres in Australia and New Zealand.

Background:Enteral nutrition (EN) is widely accepted as the preferred method for providing nutrition therapy to critically ill patients. However, optimal energy goals and the best way to achieve those goals are ill defined.

Background: Patients receiving extracorporeal membrane oxygenation (ECMO) are some of the most critically ill in the intensive care unit. In such patients, malnutrition is associated with increased morbidity and mortality.

Economic evaluations of intensive care unit (ICU) interventions have specific considerations, including how to cost ICU stays and accurately measure quality of life in survivors. The aim of this article was to develop best practice recommendations for economic evaluations alongside future ICU randomised controlled trials (RCTs).