Critical Care Bulletin: August 2026

 

Intracranial pressure physiology, monitoring and individualized management in the acute brain injured patient

Intensive Care Medicine: Published: 29 July 2026

Abstract

Acute brain injury (ABI), including traumatic brain injury, ischemic and hemorrhagic stroke, is associated with high morbidity and mortality, which is driven not only by the primary brain injury, but also by the development of secondary cerebral insults. Among these, raised intracranial pressure (ICP) plays a central pathophysiological role, acting both as a consequence and a driver of ongoing brain injury through mechanical deformation and cerebral ischemia. Although invasive intracranial pressure (ICP) monitoring has a longstanding and ongoing role in neurocritical care management, the interpretation and clinical use of ICP remain controversial. Traditional management strategies rely on fixed ICP thresholds (e.g., > 22 mmHg) to trigger a standardized stepwise escalation of therapy; however, growing clinical evidence indicates that tolerance to ICP elevation varies widely across patients, disease entities, and physiological contexts. This review summarizes the physiological determinants of ICP, including intracranial compliance, cerebrospinal fluid dynamics, cerebral blood volume, and systemic factors, and describes the mechanisms underlying intracranial hypertension. We discuss limitations of using fixed ICP thresholds and highlight emerging concepts, such as ICP burden, waveform morphology, cerebral autoregulation, and functional brain monitoring, as tools to individualize ICP interpretation. The role of invasive and noninvasive ICP monitoring (nICP) modalities is reviewed, emphasizing the complementary value of nICP in guiding decision-making when invasive monitoring is unavailable or contraindicated. Particular attention is given to the integration of ICP within multimodal neuromonitoring frameworks assessing cerebral perfusion, oxygenation, and metabolism. Finally, we explore future perspectives, including the potential of artificial intelligence–based approaches to analyse complex neuromonitoring data, predict secondary insults, and move toward actionable, patientspecific therapeutic strategies. Collectively, these advances support a shift from a uniform, threshold-driven approach toward individualized, physiology-informed management of intracranial hypertension.

 

STARDaki: a consensus-based STARD extension for standardized reporting of diagnostic accuracy in acute kidney injury

Intensive Care Medicine: Published: 28 July 2026

Introduction

Biomarkers have been identified to predict, diagnose and prognosticate acute kidney injury (AKI) but existing studies are heterogenous and contradictory.

Objective

To compare diagnostic performance of AKI biomarkers, evaluate the quality of AKI biomarker studies and to develop standards for reporting studies of diagnostic test accuracy (DTA) of AKI biomarkers.

Methods

A systematic literature review was conducted to identify studies focusing on the diagnostic performance of AKI biomarkers published before February 2025. Retrieved DTA studies were assessed for methodological quality and completeness using the QUADAS-2 and Standards for Reporting Diagnostic Accuracy (STARD) 2015 checklists. An international 17 member expert panel was convened to agree consensus standards for AKI biomarker studies (STARDaki) via a modified Delphi process.

Results

122 DTA studies for AKI biomarkers were identified, but 15 were insufficiently reported. Of the remaining 107 studies, only 19 reported on diagnosis of AKI within 48 h of sampling. Of these studies, only 16 were considered high-quality based on the QUADAS-2 criteria. The compliance level with the STARD checklist was too low to permit meta-analysis. The expert panel agreed criteria for patient selection, reference standards, and reporting of test–retest reliability to supplement the STARD guidance for AKI biomarker studies.

Conclusion

Most studies examining AKI biomarker performance fail to conform to the STARD standards for reporting, leading to poor diagnostic accuracy estimates and reduced clinical applicability and generalizability. An expert panel proposed STARDaki criteria to advance the development and clinical use of AKI biomarkers (www.stardaki.icu).

 

Prone positioning in ARDS

Intensive Care Medicine: Published: 20 July 2026

Abstract

Over the past five decades, prone positioning has evolved from single case reports to an evidence-based intervention. Initially used as a rescue therapy, it is now recognized as an integral component of lung-protective mechanical ventilation strategies, applied early in intubated patients with acute respiratory distress syndrome (ARDS) with a PaO₂/F_IO₂ ratio < 150 mmHg. The COVID-19 pandemic further expanded its use to non-intubated patients, the so-called awake prone position (APP), with promising results. APP requires confirmation in non-COVID patients and in a more routine ICU practice. Improved oxygenation is a consistent and well-recognized effect of prone positioning in both intubated and non-intubated patients with ARDS. Beyond its effects on gas exchange, prone positioning mitigates ventilator-induced lung injury by reducing lung stress and strain and may also confer favorable hemodynamic effects. This article reviews the physiologic rationale for prone positioning, evidence from randomized controlled trials, current guideline recommendations, practical aspects of implementation, and ongoing questions in both intubated and non-intubated patients.

 

Persistent tissue hypoperfusion improves risk stratification beyond vasopressor dose in refractory septic shock: a secondary analysis of the ANDROMEDA-SHOCK-2 trial

Intensive Care Medicine: Published: 15 July 2026

Purpose

A recent Delphi consensus highlighted elements for defining refractory septic shock. We assessed whether integrating persistent tissue hypoperfusion with vasopressor dose after protocolized resuscitation improves mortality risk stratification compared with vasopressor dose alone.

Methods

We performed an exploratory secondary analysis of the ANDROMEDA-SHOCK-2 trial. After 6 h of hemodynamic resuscitation, refractoriness was operationalized as a norepinephrine equivalent dose (NEE) > 0.5 µg/kg/min plus an abnormal capillary refill time (> 3 s) and non-decreasing lactate (two-hypoperfusion criteria). A complementary analysis included NEE > 0.5 µg/kg/min combined with either of the tissue perfusion criteria. The primary outcome was 28-day mortality.

Results

Among 1363 patients with complete data, 188 (13.8%) had NEE > 0.5 µg/kg/min at 6-h, with 47.9% mortality. Fifty-three patients (3.9%) were classified as refractory septic shock under the two-hypoperfusion criteria and 124 (9.1%) under the ≥ 1-hypoperfusion criterion. Mortality was 73.6% (39/53) among patients meeting two-hypoperfusion criteria, compared with 23.7% (310/1310) among those classified as non-refractory according to these criteria. (aHR, 4.68; 95% CI 3.31–6.64;p < 0.001). Under ≥ 1-hypoperfusion criterion, mortality was 55.0% (68/124), compared with 22.7% (281/1239) among those classified as non-refractory under this approach (aHR, 2.62; 95% CI 1.90–3.46;p < 0.001). Refractory patients under either approach required had fewer life-support free days. Compared with NEE > 0.5 µg/kg/min alone, the two-hypoperfusion construct yielded superior prognostic enrichment for 28-day mortality (LR + , 8.12; 95% CI 4.70–14.03 vs. 2.71; 95% CI 2.10–3.50;p < 0.001).

Conclusion

In early septic shock, combining persistent tissue hypoperfusion with vasopressor dose improves risk stratification beyond vasopressor dose alone and identifies a subgroup with markedly increased mortality. These hypothesis-generating findings require validation in future studies.

 

Key principles for rehabilitation of critically ill patients with obesity

Intensive Care Medicine: Published: 17 July 2026

Purpose

Patients with obesity who are admitted to an ICU bring specific challenges for rehabilitation during and after critical illness. This narrative review explores impact of differences in body compositions and pathophysiology on outcomes to summarise interprofessional, patient-centred rehabilitation strategies across the trajectory of recovery.

Methods

The interprofessional expert panel reviewed major trials and guidelines, integrating their clinical expertise with the current evidence.

Results

Three distinct phenotypes potentially influence outcomes for survivors. Whilst patients with preserved muscle mass may have a survival advantage, the phenotypes characterised by ectopic visceral fat or sarcopenia are frequently complicated by multimorbidity and polypharmacy, likely increasing the risk of adverse effects such as suboptimal sedation, prolonged ventilation and immobilisation, malnutrition, and impaired recovery. Targeted respiratory interventions, including secretion-clearance techniques and appropriate patient positioning to prevent atelectasis, reduce the work of breathing. Optimisation of communication and swallowing function is an essential component for facilitating safe oral intake and promoting active patient participation in rehabilitation. Concurrently, targeted nutrition strategies combined with early, targeted, progressive mobilisation might mitigate ICU acquired weakness and support functional recovery. The availability of appropriate weight‑based equipment is fundamental to ensuring safe mobilisation for both patients and healthcare professionals.

Conclusion

Interprofessional collaboration is central to optimising outcomes and should extend beyond the ICU to structured post-ICU follow-up to address persistent, worsening, or newly emerging health impairments. Early rehabilitation in critically ill patients with obesity should integrate physiological, logistical, and psychosocial considerations to support equitable and functional recovery.

 

 

 

Antiseizure medication dosing and monitoring in the intensive care unit: a practical narrative review

Intensive Care Medicine: Published: 15 July 2026

Abstract

Purpose

Antiseizure medications (ASMs) are commonly used in the intensive care unit (ICU) and often exhibit pharmacokinetics that differ substantially from those in healthy volunteers or in the outpatient setting. Organ dysfunction, polypharmacy, exogenous devices, and greater severity of illness all influence ASM pharmacokinetics, dosing decisions, and monitoring parameters. It is essential for critical care clinicians to familiarize themselves with the pharmacokinetics, dosing considerations, effects of exogenous devices, and therapeutic drug monitoring (TDM)—all covered in this narrative review—to incorporate in their approach to ASMs in the critical care setting.

Methods

We identified relevant literature from MEDLINE from inception to March 2026 related to ASMs in the ICU. Data on pharmacokinetics, dosing in the ICU, the effect of renal replacement therapy, extracorporeal membrane oxygenation (ECMO), and plasmapheresis (PLEX) on ASM exposure, and the role of TDM in the ICU were collected and summarized.

Results

Considerations for 15 ASMs (brivaracetam, cannabidiol, carbamazepine, cenobamate, clobazam, lacosamide, lamotrigine, levetiracetam, oxcarbazepine, perampanel, phenobarbital, phenytoin, topiramate, valproate, and zonisamide) were included in the review. Dosing considerations for TDM, including indications and target reference ranges, and specific settings such as organ dysfunction, illness severity, renal replacement therapy, ECMO, and PLEX are discussed.

Conclusion

The use of ASMs in the ICU require a distinct approach from outpatient settings. Severity of illness, organ dysfunction and replacement devices, and frequent drug–drug interactions warrant tailored agent selection, dosing, and monitoring.

 

 

 

High-flow nasal cannula oxygen during breaks from noninvasive ventilation after extubation: an observational study

Intensive Care Medicine: Published: 13 July 2026

Abstract

Purpose

Clinical practice guidelines recommend prophylactic noninvasive ventilation (NIV) after extubation in high-risk patients. The effects of high-flow nasal cannula (HFNC) oxygen during breaks from NIV after extubation have been poorly explored. Our objective was to assess whether HFNC rather than standard oxygen during breaks from NIV may prevent extubation failure.

Methods

Observational study based on two multicenter clinical trials including patients at high-risk of extubation failure (> 65 years or with underlying cardiac or respiratory disease). We included the 1077 patients who received prophylactic NIV after extubation, alternating with HFNC (NIV/HFNC) or standard oxygen (NIV/O₂). The primary outcome was the proportion of patients who failed extubation (reintubation or death within the seven days following extubation). We used G-computation to estimate the causal effect of HFNC on the risk of extubation failure, while accounting for confounding factors.

Results

After extubation, 655 patients (61%) received NIV/HFNC while 422 (39%) received NIV/O₂. The extubation failure rate at day 7 was significantly lower with NIV/HFNC than with NIV/O₂ (13.7% vs. 18.5%; difference, − 4.7% [95% CI, − 9.4% to – 0.3%]; p = 0.036). Using G-computation, NIV/HFNC was not more effective than NIV/O₂ in reducing the risk of extubation failure, with an estimated adjusted difference of − 3.9% [95% CI, − 8.7% to 0.9%]. Reintubation rates were significantly lower with NIV/HFNC than with NIV/O₂ at 48h, but did not significantly differ beyond 48h.

Conclusions

Although the adjusted analysis did not confirm the favorable unadjusted findings, HFNC during breaks from NIV might decrease the risk of extubation failure, and warrants future clinical trials.

 

60 years of ARDS and the evolution of extracorporeal lung support – from ECMO to ECCO2R

 

Intensive Care Medicine  Published: 07 July 2026

 

Abstract

Extracorporeal life support (ECLS), including venovenous extracorporeal membrane oxygenation (VV-ECMO) and extracorporeal carbon dioxide removal (ECCO₂R), is an established treatment for selected patients with acute respiratory distress syndrome (ARDS). In this review, on the 60th anniversary of ARDS, we review the evolution of ECLS as a support strategy in ARDS, the evidence surrounding its efficacy, factors associated with prognosis, management of patients on ECLS, associated complications, and long-term outcomes among survivors. We also highlight existing areas of uncertainty, and ongoing clinical research that will define the next decade and beyond of ECLS for ARDS.

 

 

Lung- and diaphragm-protective mechanical ventilation in acute respiratory distress syndrome

Intensive Care Medicine  Published: 07 July 2026

Abstract

Lung-protective ventilation is the current standard for mechanical ventilation of patients with acute respiratory distress syndrome (ARDS). Traditionally, this approach has focused on the controlled phase of mechanical ventilation, but emerging data suggest that how patients are managed during assisted ventilation may also impact clinical outcomes. Experimental and observational clinical data indicate that excessive respiratory effort may further damage already injured lungs and may also lead to diaphragm myotrauma. Conversely, insufficient effort and prolonged passive ventilation are associated with diaphragm atrophy and dysfunction. Recent non-invasive techniques to monitor respiratory drive and effort at the bedside have facilitated the development of a new strategy to protect both the lungs and the diaphragm. The lung- and diaphragm-protective (LDP) ventilation framework highlights the need to better integrate ventilation and sedation strategies to facilitate timely and safe spontaneous breathing. This new paradigm has driven the development of emerging supportive and therapeutic modalities, such as diaphragm neurostimulation and partial neuromuscular blockade. Clinical trials are needed to evaluate the impact of LDP strategies on patient-centered outcomes, using designs that account for the possibility of heterogeneity of treatment effect in the ARDS population. In this review, we summarize the physiological background for the LDP framework, as well as the current clinical evidence evaluating this strategy.

 

Prehospital airway and ventilatory management: a collaborative and narrative review

Intensive Care Medicine Published: 02 July 2026

Purpose

Prehospital airway and ventilatory management is a frequent, high-stakes and technically demanding component of emergency care. Environmental constraints, limited resources, and variable provider experience make it particularly challenging, and prehospital care systems differ substantially across countries, from paramedic-based to physician-led models, contributing to heterogeneity in clinical practices and patient outcomes. In this narrative review, we discuss evidence-based best practice, including indications, timing, physiological optimization, procedural conduct, and post-intubation management of prehospital tracheal intubation or non-invasive ventilation and high-flow nasal oxygen.

Methods

Tracheal intubation remains the definitive airway management strategy when performed for appropriate indications by adequately trained providers. Indications span major trauma, traumatic brain injury, out-of-hospital cardiac arrest, and comatose patients, though its role in comatose poisoned patients is increasingly questioned. Physiology optimization before intubation is a critical and frequently underappreciated determinant of outcome, encompassing preoxygenation with non-invasive positive pressure ventilation, bag-valve-mask ventilation between induction and laryngoscopy, and careful sedative selection to limit peri-intubation hemodynamic compromise.

Results

When intubation fails, a structured escalation strategy including videolaryngoscopy, supraglottic airway devices, and emergency front-of-neck access must be rehearsed and immediately available. In out-of-hospital cardiac arrest, supraglottic airways represent a valid primary alternative with equivalent neurological survival and faster placement. Non-invasive ventilation (primarily CPAP and BiPAP) has a well-established role in acute cardiogenic pulmonary edema and COPD exacerbations, reducing intubation rates and mortality. High-flow nasal oxygen is an emerging modality with strong in-hospital evidence, but prehospital data remain extremely limited and logistical constraints restrict its routine use. Non-invasive support must never delay intubation when clinical deterioration demands it.

Conclusion

Specific contexts require tailored adaptations: altitude physiology in helicopter transport, obesity-specific positioning, cervical spine precautions in neurological injury, comfort-focused strategies in palliative patients, and proactive stabilization before prolonged transport. Evidence gaps remain, particularly regarding prehospital high-flow nasal oxygen.

Critical Care Bulletin: May 2026

 

Effects of out-of-bed armchair positioning on oxygenation in spontaneously breathing ICU patients receiving respiratory support: a randomized controlled trial

Intensive Care Medicine: Published: 18 May 2026

Purpose

Comparing the effects of an out-of-bed armchair position versus an in-bed semi-recumbent position on oxygenation in spontaneously breathing intensive care unit (ICU) patients, receiving respiratory support is a common practice with limited supported evidence.

Methods

A single-center randomized controlled trial in spontaneously breathing adult ICU patients receiving invasive pressure support ventilation, high-flow nasal oxygen, or non-invasive ventilation. Patients were assigned to armchair or semi-recumbent in-bed positioning for 3 h. Arterial blood gasses were obtained immediately before and after positioning. PaO₂/FiO₂ (P/F) changes were analyzed with a linear mixed-effects model including group, time, and their interaction, adjusted for stratification variables.

Results

284 patients were randomized (146 and 138 in the armchair and bed groups, respectively). Baseline P/F ratios did not differ between groups. A significant interaction between group and time was observed (p = 0.002). In the armchair group, the P/F ratio increased by 13 mm Hg (95% CI 1–24), whereas it decreased by 13 mm Hg (95% CI − 25 to − 1) in the bed group. The post-positioning marginal mean P/F ratio was higher in the armchair group (241 mm Hg, 95% CI 214–268) than in the bed group (206 mm Hg, 95% CI 179–233; p = 0.004). No serious adverse events occurred. Minor adverse events were more frequent in the armchair group but had minimal impact on positioning duration.

Conclusion

In spontaneously breathing ICU patients receiving respiratory support, out-of-bed armchair positioning was associated with higher oxygenation after 3 h than remaining in a semi-recumbent position, with no serious adverse events observed.

 

 

The FICUS cluster randomized controlled trial of a family support intervention in adult intensive care units: mental health and family functioning outcomes

Intensive Care Medicine: Published 18 May 2026

Purpose

To examine the effect of a multicomponent, nurse-led, interprofessional family support intervention on family functioning and mental health in adult intensive care units (ICUs).

Methods

A cluster-randomized controlled trial in 16 Swiss ICUs compared an intervention—a family care pathway with specially trained ICU family nurses engaging and liaising with families, giving psychoeducational and relationship-focused care, and providing structured, interprofessional communication—to usual care. Family members of patients with an expected ICU stay of ≥ 48 h and a high risk of death, serious impairment, or prolonged mechanical ventilation participated. Outcomes included family functioning, resilience, life satisfaction, quality of life, distress, anxiety, depression, and posttraumatic stress, assessed at patient ICU admission, discharge, 3-, 6-, and 12 months post-ICU, and analyzed by linear mixed effects models.

Results

Almost half (43%) of the invited family members participated (885; May 2022 to January 2024). Follow-ups were completed on time by 736 (83.2%), 665 (75.1%), 643 (71.6%), and 593 (67.0%), respectively. Between 609 and 613 were included in the analysis. Family member characteristics were comparable at baseline, yet patient mechanical ventilation (60.3 vs. 49.5%) and ICU death (19.9 vs. 13.2%) were higher in the intervention than the control arm. There was no significant difference between the study arms for any of the outcomes. Type of relationship, prior ICU experience, and patient mechanical ventilation were associated with some of the outcomes. Mental health systematically improved post-ICU.

Conclusion

No evidence of a significant improvement in family functioning or mental health was found within the first year after ICU treatment. Due to limitations, the results of our study have to be interpreted cautiously and in a hypothesis-generating manner.

 

 

Reproducible clinical archetypes in acute respiratory failure: a multi-cohort trajectory analysis

Intensive Care Medicine: Published 17 May 2026

Purpose

Acute hypoxemic respiratory failure (AHRF) is common and biologically heterogeneous. Static phenotyping at a single time point does not capture illness evolution and risks stage-mixing; reproducible clinical course archetypes may address this. We aimed to identify, externally validate, and predict trajectory classes (TCs) of persistent AHRF.

Methods

We analyzed MIMIC-IV (derivation; n = 3938) and two external validation cohorts (UK/Netherlands; n = 6480) comprising adults with PaO₂/FiO₂ < 300 mmHg and PEEP ≥ 5 cmH₂O for ≥ 72 h. Daily mean PaO₂/FiO₂ to day 14 and time to ICU discharge/death were jointly modelled using a competing-risk latent class mixed model. Early TC prediction used a 12-variable XGBoost model. We explored prevalence of ARDS and hyperinflammatory subphenotypes between TCs.

Results

A four-class model provided optimal fit: (TC1) early recovery (0.3% 14-day mortality); (TC2) stable persistence (8% 14-day mortality); (TC3) biphasic improvement–deterioration (17% 14-day mortality); and (TC4) rapid decline (100% 14-day mortality). These archetypes generalized to external cohorts with high assignment certainty. TCs demonstrated distinct patterns in other clinical biomarker trajectories. TC4 was enriched for the hyperinflammatory subphenotype (41–53%), while TC2 was most common in patients with ARDS (50%). Early TC prediction models achieved mean AUCs ≥ 0.78 (0.70–0.86) by day 3 in external validation.

Conclusions

Four reproducible oxygenation archetypes capture the 14-day course of persistent respiratory failure. By providing early prognostic value distinct from static baseline severity, these trajectories have the potential to guide therapeutic strategies, reduce patient heterogeneity in trials, and direct biological phenotyping.

 

 

Airway management in critically ill patients with obesity

Intensive Care Medicine: Published: 13 May 2026

Abstract

Obesity is a global health challenge. An increasing number of patients with obesity are admitted to an intensive care unit. Airway management in these patients represents a unique challenge due to significant anatomical and physiological alterations. Increased adipose tissue in the face, cheeks, pharynx, hypopharynx, and neck narrows the upper airway, renders soft tissues more collapsible, and complicates airway management. In addition, the functional residual capacity is reduced, resulting in markedly shortened safe apnea time, contributing to severe hypoxemia during intubation. Non-invasive ventilation is effective in mitigating this risk and should be applied from pre-induction to laryngoscopy. Peri-intubation physiological optimization should include assessment of preload and cardiac contractility, with careful consideration of right ventricular strain. The transition from negative to positive intrathoracic pressure should be closely monitored, with cautious titration of positive end-expiratory pressure. Recognition of these anatomical and physiological challenges may prompt clinicians to consider awake intubation in selected patients. When rapid sequence induction is performed, both ketamine and etomidate are appropriate options; the choice between them should be guided by the clinical context, patient characteristics, local practice patterns and availability. Videolaryngoscopy increases the incidence of successful intubation on the first attempt and should be adopted routinely in the population with obesity. Several questions remain unanswered, including the safety and efficacy of pre-emptive vasopressor use to prevent post-intubation cardiovascular collapse and the optimal dosing of hypnotic agents to achieve ideal intubation conditions, while minimizing adverse events.

 

Standard of care for rehabilitation in critical illness

Intensive Care Medicine: Published: 30 April 2026

Background

Rehabilitation is recognised as a cornerstone of intensive care, essential for optimising functional recovery and reducing long-term disability. Contemporary ICU populations, characterised by advanced age, multimorbidity, and prolonged stays, are at heightened risk of muscle wasting, immobility, frailty, cognitive decline, and functional dependence. Mitigation of these sequelae requires careful interprofessional collaboration for person-centred rehabilitation across the care continuum.

Content

This review synthesises evidence from randomised controlled trials, meta-analyses, and clinical practice guidelines on rehabilitation during and after intensive care. Best practice within the ICU begins with early awakening and mobilisation with evidence demonstrating that physical rehabilitation is safe, with low adverse-event rates. Furthermore, multiprofessional strategies that span across ICU, ward, and community are required to address complex problems including physical, cognitive, and psychological sequelae of critical illness.

Future directions

Research priorities include detailed reporting of intervention dose (timing, intensity, duration) for both usual care and rehabilitation provided within clinical trials, and development of intervention implementation strategies that enhance uptake and fidelity in routine practice.

Conclusion

Rehabilitation is integral to contemporary ICU care, spanning the trajectory of recovery into the community. Within the ICU, it requires interprofessional, experienced healthcare personnel to assess clinical status for safe rehabilitation and to identify an individual’s anticipated recovery trajectory. Standardised intervention reporting and implementation-focussed research are essential to advance evidence and improve outcomes for critically ill patients.

 

 

 

Non-invasive intracranial pressure estimation in the intensive care unit: narrative review of methods and clinical applications

Intensive Care Medicine: Published: 27 April 2026

Abstract

Despite invasive methods are the gold standard for intracranial pressure (ICP) measurement, several non-invasive techniques (nICP) have been proposed as surrogate, although their use remains insufficiently recognized in clinical practice. These include transcranial Doppler blood flow velocity  assessment (arterial or venous), optic nerve sheath diameter (ONSD), automated pupillometry, measurement of skull expansion and compliance, brain imaging, double-depth ophthalmic artery blood flow velocity, and ultrasound time-of-flight. The main limitations of all indirect methods are calibration and zeroing, which constrain the absolute accuracy of non-invasive ICP monitoring. For transcranial Doppler-based methods, the 95% limits of agreement are approximately ± 7–15 mmHg, while for ONSD-based techniques they range from ± 7–10 mmHg. Improved predictive accuracy may be achieved by combining different modalities and applying advanced signal analysis techniques. Importantly, in patients with acute brain injury, nICP can complement invasive monitoring by guiding patient selection for urgent monitoring, facilitating brain assessment in moderate traumatic brain injury, and assisting management in patients with coagulopathy. In the general intensive care population, nICP may provide valuable information after cardiac arrest, liver failure, and sepsis. In the emergency department, early detection of intracranial hypertension helps prevent missing the “golden hour” of brain care. Finally, nICP is particularly relevant in low-resource settings, where intensive care facilities are limited.

 

Temperature control in acute brain injury

Intensive Care Medicine: Published 20 April 2026

Purpose

Temperature is a key determinant of cerebral vulnerability after acute brain injury and a physiological variable that can be continuously monitored and actively controlled in the intensive care unit. Its therapeutic role has evolved from hypothermia-centred strategies toward early recognition of fever and controlled normothermia. This review examines the physiological rationale, clinical evidence, and contemporary practice of temperature management in neurocritical care.

Methods

We synthesised evidence from major randomised trials, observational studies, and international consensus recommendations across traumatic brain injury, acute vascular brain injury, and post-cardiac arrest encephalopathy, together with current monitoring and implementation approaches.

Results

Fever is consistently associated with worse neurological outcomes. In traumatic brain injury, hypothermia reduces intracranial pressure but does not improve functional outcome when used prophylactically and is reserved for refractory intracranial hypertension. In acute vascular brain injury, neutral trials and feasibility constraints have shifted practice toward early detection and treatment of fever rather than hypothermia. In post-cardiac arrest care, contemporary guidelines recommend protocolised temperature control with selection and maintenance of a constant target between 32°C and 37.5°C and active prevention of fever, rather than mandatory hypothermia.

Conclusions

Temperature control is a fundamental component of care aimed at protecting the injured brain through continuous monitoring, early detection of fever, and prevention of temperature-related harm.

 

 

Low versus standard calorie and protein feeding and renal dysfunction in ventilated adults with shock: a NUTRIREA-3 post hoc analysis

Intensive Care Medicine: Published: 16 April 2026

Purpose

The optimal intake of artificial nutrition in critically ill patients remains unclear. While calorie and protein intakes affect glomerular function in patients with chronic kidney disease, their relation to renal function at the acute phase of intensive care is insufficiently documented. We aimed to study associations of a low-calorie and low-protein diet with renal outcomes in critically ill patients.

Methods

This post hoc analysis of the NUTRIREA-3 randomized-controlled trial included 3036 mechanically ventilated patients with shock. Calorie and protein intakes during the first 7 days were either low (6 kcal/kg and 0.2–0.4 g protein/kg/d) or standard (25 kcal/kg and 1.0–1.3 g protein/kg/d). The primary outcome was the incidence of acute kidney disease (AKD) during the ICU stay (up to ICU discharge or day 90 after inclusion, whichever occurred first).

Results

AKD during the ICU stay occurred in 669 (44.6%) low-group patients and 691 (46.1%) standard-group patients (hazard ratio, 0.97; 95% CI 0.88–1.07; P = 0.53). The highest urea level and the urea level at ICU discharge were significantly lower in the low group (P = 0.002). No differences were found for renal replacement therapy requirements or other renal outcomes. The results were similar in patients with early kidney dysfunction, severe organ failures, or end-stage chronic kidney disease.

Conclusion

In critically ill patients with shock, early low-calorie and low-protein nutrition for 7 days was not associated with worse renal outcomes or mortality compared to standard feeding, even in patients with preexisting renal dysfunction.

 

Implementation of a kidney protection strategy to prevent acute kidney injury after major surgery in high-risk patients identified by biomarkers: a systematic review and individual participant data meta-analysis of randomized controlled trials

Intensive Care Medicine: Published: 20 April 2026

Purpose

Acute kidney injury (AKI) is a common complication after major surgery and is associated with increased morbidity and mortality. Kidney protection strategies may help prevent moderate or severe AKI in high-risk patients. This study aims to assess the effect of the Kidney Disease: Improving Global Outcomes (KDIGO) kidney protection strategy for the prevention of AKI in patients after major surgery.

Methods

We conducted a systematic review and individual participant data (IPD) meta-analysis of randomized controlled trials (RCTs) comparing the kidney protection strategy recommended by international guidelines consisting of hemodynamic and fluid status optimization, avoidance of nephrotoxins or radiocontrast agents, regular monitoring of kidney function, and glycemic control to standard care in high-risk patients after major surgery with an enrichment strategy based on renal biomarkers. The primary outcome was moderate or severe AKI (KDIGO stage ≥ 2) within 72 h after surgery. MEDLINE via PubMed, Web of Science, and the Cochrane Central Register of Controlled Trials were searched from January 1, 2000, to September 1, 2025. References of eligible trials and related reviews were hand-searched. Two reviewers independently assessed trial quality using the Cochrane Risk of Bias tool version 2.0. Certainty of the evidence was assessed using GRADE. IPD were pooled. Odds ratios (ORs) and mean difference with 95% confidence intervals (CIs) were computed with one-stage IPD meta-analysis. Heterogeneity was assessed by I² and Cochran’s Q.

Results

We identified four RCTs, two single-center trials and two multinational-multicenter trials. We pooled IPD from all four trials. The final cohort included 1,851 participants with 921 participants in the intervention group and 930 participants in the control group. Moderate or severe AKI occurred significantly less frequently in the intervention group (162/918 participants (17.7%)) compared to the control group (252/929 participants (27.1%)) (OR 0.55, 95% CI 0.44–0.70; p < 0.0001). There was no evidence of heterogeneity across studies (p = 0.7309, I² = 0.0%, τ² = 0). Secondary endpoints varied across trials and did not demonstrate major differences between groups. When measured, the intervention tended to result in fewer persistent AKI events and larger decreases in renal tubular stress biomarkers.

Conclusion

The implementation of a kidney protection strategy reduces the rates of moderate or severe AKI in biomarker-enriched high-risk patients after major surgery compared to standard of care, while the incremental clinical value of biomarker-guided selection itself remains uncertain.

 

Critical Care Bulletin: January 2026

 

Spontaneous breathing trials as predictors of extubation outcomes in neurocritical care: insights from the ENIO study

Intensive Care Medicine | Published: 13 January 2026

 

 

Purpose

In critically ill patients, extubation readiness is typically assessed using a spontaneous breathing trial (SBT). Among patients with acute brain injury (ABI), the optimal SBT method remains uncertain.

Methods

We conducted a post-hoc analysis of the ENIO study (NCT03400904), including mechanically ventilated ABI patients with available SBT data, undergoing extubation attempt. SBTs were classified as T-piece, pressure support ventilation (PSV), or continuous positive airway pressure (CPAP). The primary outcome was extubation failure within 5 days. Associations between SBT modality and extubation failure were assessed using multivariable logistic regression and inverse probability of treatment weighting.

Results

Of 1,512 patients enrolled in ENIO, 839 met the inclusion criteria, of whom 270 (32.2%) were female and 396 (47.2%) had traumatic brain injury as the cause of admission. SBTs were performed with PSV in 430 (51.3%), T-piece in 329 (39.2%), and CPAP in 80 (9.5%). SBT median duration was 60 min in PSV and T-piece, while 120 min in CPAP. Extubation failure occurred in 177 (21.1%) cases. In multivariable analyses, there was no significant association between SBT modality or duration and extubation outcome. Results were similar in ABI subgroup analyses. After inverse probability weighting, vigorous cough remained the only significant predictor of extubation success.

Conclusions

In this large international ABI cohort, neither SBT mode nor duration was associated with extubation failure.

 

 

 

 

Severe community-acquired pneumonia: current concepts and controversies

Intensive Care Medicine | Published: 12 January 2026

Abstract

Community-acquired pneumonia, particularly in its severe forms (sCAP), remains a major public health problem due to its frequency, immediate and delayed complications, and the cost of treatment. Although rare, resistant pathogens could make it increasingly difficult to choose an empirical antibiotic treatment. Rapid molecular microbiological diagnostic techniques could help guide this choice, but their role needs to be better evaluated and their cost may be an obstacle to their widespread use. The duration of treatment tends to be decreasing, but could be guided by clinical progression and possibly biomarkers. As a disorder of dysregulated systemic inflammation, sCAP is potentially eligible for immunomodulatory treatment. Three recent high-powered randomized trials on corticosteroids have yielded conflicting results. There is a need to better define which patients are likely to benefit, perhaps those with a marked inflammatory syndrome, and in any case not those with influenza. Some macrolides also have a potential immunomodulatory effect. Other treatments are currently being investigated. Supportive care, particularly respiratory support, remains essential. It is not specific to sCAP and must be tailored to the severity of the patient's condition.

 

Temporary mechanical support in fulminant myocarditis: prognostic factors and clinical implications from the FULLMOON study

Intensive Care Medicine | Published: 12 January 2026

Background

Temporary mechanical circulatory support (t-MCS) is increasingly used in fulminant myocarditis (FM), yet long-term outcomes and risk factors remain poorly defined.

Methods

From the FULLMOON international cohort (419 adults with suspected FM across 36 centers in 15 countries), 295 patients treated with venoarterial extracorporeal membrane oxygenation (V-A ECMO) and/or Impella were analyzed. The primary endpoint was mortality at 1 year, heart transplantation (HTx), or left-ventricular assist device (LVAD). Multivariate Cox regression identified predictors of adverse outcomes. A propensity score-weighted analysis assessed outcomes based on timing of endomyocardial biopsy (EMB): early (≤ 2 days), delayed (> 2 days), or none.

Results

The median age was 39 years (IQR 28–60), and 55% were female. Myocarditis was confirmed in 204 (69%) of the patients via histology or cardiac MRI. Histological data were available for 151 (51%) of the cohort. One-year mortality was 36%, while 44% died or had an HTx or LVAD. Predictors of worse outcomes were giant cell myocarditis, older age, cardiac arrest at ECMO initiation, and delayed EMB. Delayed EMB was consistently associated with higher mortality, HTx, or LVAD compared to early (HR = 1.55; 95% CI 1.23–1.96; p < 0.01) or no EMB (HR = 1.59; 95% CI 1.26–2.01; p < 0.01). However, event-free survival did not differ significantly between early EMB and no EMB (HR = 1.03; 95% CI 0.80–1.32; p = 0.85).

Conclusions

Despite a relatively young cohort, FM requiring t-MCS is associated with a high 1-year mortality rate. Timely recognition and early referral to specialized ECMO centers before cardiac arrest are critical.

 

A consensus of international experts on definition, sampling, treatment, and prevention of peripheral extracorporeal membrane oxygenation cannula-site infection obtained by the Delphi method: the SAVECMO study

Intensive Care Medicine | Published: 08 January 2026

Background

Nosocomial infections are common in patients receiving extracorporeal membrane oxygenation (ECMO), with ECMO cannula-site infections (ECMO-CSI) being the most frequent infections directly related to the ECMO run. These infections can significantly impact patient outcomes. Currently, no adult guidelines exist for the prevention, diagnosis, and/or treatment of peripheral ECMO-CSI, resulting in heterogeneity in both clinical practice and research findings.

Methods

We conducted a Delphi study involving 39 international experts in ECMO management. The experts participated in four Delphi rounds to reach consensus on various aspects of ECMO-CSI complicating peripheral ECMO (central ECMO excluded), including definition, clinical suspicion, diagnostic methods, preventive measures, and treatment. Consensus was defined as ≥ 70% agreement among experts on each proposed item.

Results

The Delphi process established consensus on key aspects of ECMO-CSI. Experts agreed on clinical scenarios that warrant suspicion of ECMO-CSI, such as purulent discharge and local inflammatory signs. Standardized sampling techniques, including swabs and purulent drainage aspiration, were recommended, while others were rejected. Definitions were clarified, specifying that ECMO-CSI is defined by the isolation of a pathogen through local microbiological sampling and the presence of purulent discharge or local inflammatory signs. Among the preventive measures, the use of chlorhexidine-impregnated or semipermeable polyurethane dressings, unchanged for 7 days unless soiled or bleeding, was recommended, whereas systematic antibiotic prophylaxis, even for surgical ECMO, was not recommended.

Conclusion

This study presents an international expert consensus focusing on peripheral ECMO-CSI, providing a standardized framework to improve clinical management and facilitate future research. The consensus aims to enhance patient outcomes and support evidence-based guidelines in this complex field.

 

Cyclosporine versus placebo pretreatment of brain-dead donors and kidney graft function (Cis-A-Rein trial): a multicenter, double-blind, randomized, controlled trial

Intensive Care Medicine | Published: 08 January 2026

Purpose

Delayed graft function is the most frequent early complication of kidney transplantation. Pretreatment of kidney donors with cyclosporine has decreased delayed graft function in animal studies by reducing ischemia–reperfusion graft injuries. No randomized clinical trials have assessed the efficacy of cyclosporine pretreatment of brain-dead donors in reducing delayed graft function.

Methods

In this multicenter randomized, double-blind, and placebo-controlled trial, brain-dead donors were randomized (1:1) to receive either 2.5 mg/kg of cyclosporine or a glucose placebo infusion. The kidney transplant candidates were allocated through their donor assignment. The primary outcome was the occurrence of delayed graft function (DGF), defined as the need for at least one hemodialysis within the 7 days after kidney transplantation. Secondary outcomes included early graft function parameters within the 7 days post-transplantation, and 1-year graft and recipient survival.

Results

Between December 17, 2017 and March 3, 2023, 258 donors/331 recipients in the placebo group and 238 donors/312 recipients in the cyclosporine group were included in the modified intention-to-treat analysis. DGF occurred in 46 recipients (13.9%) in the placebo group and in 53 recipients (17.0%) in the cyclosporine group (unadjusted odd ratio = 1·27, 95% CI 0.83–1.95, P = 0.28). No significant between-group differences in the secondary outcomes (early graft function and 1-year graft and recipient survival) were observed.

Conclusion

In this double-blind, randomized controlled clinical trial, a pretreatment of brain-dead donors with a single low dose of cyclosporine did not significantly reduce the occurrence of DGF in kidney transplant recipients.

 

Family-administered delirium screening improves satisfaction among ICU caregivers: a prospective cohort study

Intensive Care Medicine | Published: 08 January 2026

Purpose

Family caregivers experience distress when their loved one is in the ICU, particularly in the setting of delirium. Limited English proficiency (LEP) may worsen this experience and contribute to long-term psychological burden. Yet, caregivers with LEP are rarely included in ICU research. Whether caregiver engagement using linguistically tailored delirium assessments improves satisfaction remains unknown.

Methods

We conducted a prospective cohort study in two academic ICUs evaluating delirium detection among English and Spanish-speaking ICU patients. Within this larger study, we performed a substudy of patient–caregiver dyads focused on caregiver satisfaction. Caregivers were assigned to: (1) FAM-CAM group, in which caregivers completed daily FAM-CAM delirium assessments, or (2) control group with no FAM-CAM exposure. All caregivers completed the Family Satisfaction in the ICU-24 (FS-ICU-24) after 3 days. Outcomes included overall satisfaction and subdomains of decision-making and care (0–100 scale). Independent t-tests compared satisfaction by language, FAM-CAM exposure, and patient delirium status.

Results

Among 120 dyads, 63 caregivers preferred English and 57 Spanish. English-speaking caregivers reported higher decision-making satisfaction than Spanish speakers (90.8 vs 85.6, p < 0.05). FAM-CAM exposure improved overall satisfaction across language groups (91.9 vs 84.4, p < 0.01). Patient delirium was linked to lower caregiver satisfaction, but FAM-CAM engagement mitigated this effect, with higher scores among exposed caregivers (90.9 vs 80.3, p < 0.05).

Conclusions

English-speaking caregivers reported higher satisfaction scores than Spanish-speaking caregivers. Engagement with FAM-CAM improved satisfaction across language groups, highlighting its potential to enhance caregiver engagement and promote equity in the ICU.

 

Challenges and strategies in the care of older adults across the continuum of intensive and post-intensive care medicine

Intensive Care Medicine | Published: 22 December 2025

Abstract

Older adults have composed more than half of ICU patient-days for the past 25 years, and these numbers are only expected to grow as the worldwide population of older adults doubles by 2050. For older adults, conditions such as frailty, disability in functional activities, and multimorbidity are more strongly associated with ICU and post-ICU outcomes than chronological age, and recent work shows that the prevalence of these conditions among older ICU patients is increasing over time. In response to this demographic shift, the science of aging-focused critical care has rapidly expanded over the past decade, and we now know more about how to care for older ICU patients than ever before. However, challenges in the care of older adults across the continuum of ICU and post-ICU care remain. In this narrative review, we discuss these challenges, propose strategies and future research to address them, and discuss best practices for the care of older ICU patients in the context of the state of the science.

 

The medical management of acute respiratory distress syndrome

Intensive Care Medicine | Published: 22 December 2025

Abstract

Despite advancements in bedside monitoring and paradigm shifts in standard ventilatory practice, mortality from acute respiratory distress syndrome (ARDS) remains high. The recent Global ARDS definition adopts a more pragmatic approach enabling earlier identification across a broader patient spectrum, independent of the interventions being administered. Meanwhile, our understanding of managing this heterogeneous syndrome has shifted towards defining precise subgroups with shared therapeutic targets. Physiological, biological, and radiological phenotypes may modify the response to interventions previously showing indeterminate benefit, making them potentially central to future personalised ARDS management. This narrative review summarises core evidence for the medical and ventilatory management of ARDS, explores emerging concepts, and offers clinicians a framework for current best practice and a roadmap for possible future directions.

 

Disorders of consciousness diagnosis, interventions, and prognostication for the intensivist: Report of the 2025 ISICEM roundtable

Intensive Care Medicine | Published: 15 December 2025

Abstract

Disorders of consciousness (DoC) represent a spectrum of clinical conditions, including coma, unresponsive wakefulness syndrome, and the minimally conscious state, which may result from structural and non-structural brain injuries due to trauma, stroke, anoxia, infections of the brain, and other causes. Clinical management of patients with DoC is especially challenging in the critical care environment, where the level of consciousness, a key factor in determining the trajectory of recovery, may be obscured by sedation, analgesia, and other confounders. The 2025 International Symposium on Intensive Care and Emergency Medicine hosted a Roundtable of 18 expert clinicians and researchers to synthesise and discuss the latest evidence on acute DoC epidemiology, diagnosis, treatment, and prognosis. Here, we summarise the output of the Roundtable in the format of a roadmap with six steps related to identifying patients with DoC, assessing for and treating confounders, establishing a diagnosis and prognosis, selecting interventions, and effectively communicating with family. This roadmap provides practical, evidence-informed guidance to help intensivists navigate diagnosis, treatment, and prognostication in patients with acute DoC. Advances in structural and functional neuroimaging, electrophysiology, and blood-based biomarkers offer promise for refined diagnostics and prognostication, though their clinical translation remains limited.