The Richmond Agitation-Sedation Scale: validity and reliability in adult intensive care unit patients

Propofol-alone sedative efficacy in observational biliopancreatic endoscopic ultrasound

Objectives

Appropriate sedative and analgesic selection is essential to reduce patient discomfort and body movement to safely conduct endoscopic ultrasonography (EUS). However, few cases have examined sedation with propofol in EUS, and few studies the need for combined analgesia. In this study, we retrospectively evaluated the usefulness and safety of propofol without analgesics for sedation in biliopancreatic observational EUS.

Methods

This single-center retrospective study included 516 observational biliopancreatic EUS procedures using propofol alone performed between April 2021 and March 2023. The primary and secondary endpoints were the observational biliopancreatic EUS results obtained with propofol alone and adverse event occurrence, respectively.

Results

The median examination time and total propofol dose were 22 (range: 10-67) min and 186.5 (range: 50-501) mg, respectively. The median starting Richmond Agitation-Sedation Scale and Visual Analog Scale scores were -5 (range: -5-1) and 0 (range: 0-10), respectively. The median recovery time was 22 (range: 5-80) min. Adverse events occurred in 60 (11.6%) patients. Trainee-performed examination (odds ratio [OR] 3.52, 95% confidence interval [CI]: 1.63-7.60, p = 0.0014) and examination length (>22 min; OR 1.67, 95% CI: 0.95-2.92, p = 0.07) were risk factors for adverse events.High body mass index (OR 1.87, 95% CI: 1.10-3.16, p = 0.02) and extended examination time (OR 4.23, 95% CI: 2.08-8. 57, p < 0.001) were risk factors for delayed recovery.

Conclusions

During observational biliopancreatic EUS, propofol is useful as a single sedative and offers high patient satisfaction and relative safety.

Being a patient in the intensive care unit: a narrative approach to understanding patients' experiences of being awake and on mechanical ventilation

PURPOSE

Intensive care patients often struggle to communicate due to the technical equipment used for mechanical ventilation and their critical illness. The aim of the study was to achieve a deeper understanding of how mechanically ventilated intensive care patients construct meaning in the unpredictable trajectory of critical illness.

METHODS

The study was a part of a larger study in which ten patients were video recorded while being in the intensive care. Five patients engaged in interviews about their experiences from the intensive care stay after being discharged and were offered the possibility to see themselves in the video recordings. A narrative, thematic analysis was applied to categorize the patients' experiences from the intensive care.

RESULTS

A pattern of shared experiences among intensive care patients were identified. Three main themes capture the patient's experiences: 1) perceiving the intensive care stay as a life-changing turning point, 2) being dependent on and cared for by others, and 3) living with negative and positive ICU experiences.

CONCLUSION

The patients' narratives revealed how being critically ill affected them, and how they understood their experiences in relation to themselves and their surroundings. The results can be used to pose important questions about our current clinical practice.

DELirium treatment with Transcranial Electrical Stimulation (DELTES): study protocol for a multicentre, randomised, double-blind, sham-controlled trial

INTRODUCTION

Delirium, a clinical manifestation of acute encephalopathy, is associated with extended hospitalisation, long-term cognitive dysfunction, increased mortality and high healthcare costs. Despite intensive research, there is still no targeted treatment. Delirium is characterised by electroencephalography (EEG) slowing, increased relative delta power and decreased functional connectivity. Recent studies suggest that transcranial alternating current stimulation (tACS) can entrain EEG activity, strengthen connectivity and improve cognitive functioning. Hence, tACS offers a potential treatment for augmenting EEG activity and reducing the duration of delirium. This study aims to evaluate the feasibility and assess the efficacy of tACS in reducing relative delta power.

METHODS AND ANALYSIS

A randomised, double-blind, sham-controlled trial will be conducted across three medical centres in the Netherlands. The study comprises two phases: a pilot phase (n=30) and a main study phase (n=129). Participants are patients aged 50 years and older who are diagnosed with delirium using the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision criteria (DSM-5-TR), that persists despite treatment of underlying causes. During the pilot phase, participants will be randomised (1:1) to receive either standardised (10 Hz) tACS or sham tACS. In the main study phase, participants will be randomised to standardised tACS, sham tACS or personalised tACS, in which tACS settings are tailored to the participant. All participants will undergo daily 30 min of (sham) stimulation for up to 14 days or until delirium resolution or hospital discharge. Sixty-four-channel resting-state EEG will be recorded pre- and post the first tACS session, and following the final tACS session. Daily delirium assessments will be acquired using the Intensive Care Delirium Screening Checklist and Delirium Observation Screening Scale. The pilot phase will assess the percentage of completed tACS sessions and increased care requirements post-tACS. The primary outcome variable is change in relative delta EEG power. Secondary outcomes include (1) delirium duration and severity, (2) quantitative EEG measurements, (3) length of hospital stay, (4) cognitive functioning at 3 months post-tACS and (5) tACS treatment burden. Study recruitment started in April 2024 and is ongoing.

ETHICS AND DISSEMINATION

The study has been approved by the Medical Ethics Committee of the Utrecht University Medical Center and the Institutional Review Boards of all participating centres. Trial results will be disseminated via peer-reviewed publications and conference presentations.

TRIAL REGISTRATION NUMBER

NCT06285721.

The impact of delirium on clinical and functional outcomes in hospitalized patients with acute coronary syndrome

BACKGROUND

Delirium, which is prevalent in critical care settings, remains underexplored in acute coronary syndrome (ACS) patients in the cardiac intensive care unit (CICU).

AIM

To investigate the prevalence and clinical significance of delirium in patients with ACS admitted to the CICU.

STUDY DESIGN

A prospective study (n = 106, mean age 74.2 ± 5.7 years) assessed delirium using the confusion assessment method-intensive care unit (CAM-ICU) tool in 21.7% of ACS patients during their CICU stay. Baseline characteristics, geriatric conditions and clinical procedures were compared between delirious and nondelirious patients. The outcomes included in-hospital mortality, 30-day and 6-month mortality, acute adverse events and length of CICU stay and hospital stay (LOS).

RESULTS

Delirious patients who were older and had a higher incidence of coronary artery disease underwent more complex procedures (e.g., pacemaker placement). Multivariate analysis identified central venous catheter insertion, urinary catheterization and benzodiazepine use as independent predictors of delirium. Delirium was correlated with prolonged LOS (p < .001) and increased in-hospital, 30-day and 6-month mortality (p < .001).

CONCLUSIONS

Delirium in ACS patients in the CICU extends hospitalization and increases in-hospital, 30-day and 6-month mortality. Early recognition and targeted interventions are crucial for mitigating adverse outcomes in this high-risk population.

RELEVANCE TO CLINICAL PRACTICE

This study highlights the critical impact of delirium on outcomes in hospitalized patients with ACS in the CICU. Delirium, often overlooked in ACS management, significantly extends hospitalization and increases mortality rates. Nurses and physicians must be vigilant in identifying delirium early, particularly in older ACS patients or those with comorbidities. Recognizing independent predictors such as catheterization and benzodiazepine use allows for targeted interventions to reduce delirium incidence. Integrating routine delirium assessments and preventive strategies into ACS management protocols can improve outcomes, optimize resource utilization and enhance overall patient care in the CICU setting.

Low-dose clonidine infusion to improve sleep in postoperative patients in the high-dependency unit. A randomised placebo-controlled single-centre trial

PURPOSE

Dexmedetomidine increases sleep and reduces delirium in postoperative patients, but it is expensive and requires a monitored environment. Clonidine, another α 2-agonist, is cheaper and is used safely for other purposes in wards. We assessed whether clonidine would improve sleep in postoperative high-dependency unit (HDU) patients.

METHODS

The Clonidine at Low dosage postoperatively to Nocturnally Enhance Sleep (CLONES) study was a double-blind, placebo-controlled, parallel-group pilot effectiveness randomised trial involving adult elective surgery HDU patients in a single academic hospital. Patients received clonidine 0.3 μg/kg/h or saline placebo on the night of surgery. The primary outcome was total sleep time measured using a consumer actigraphy/photoplethysmography device.

RESULTS

Of the 83 randomised patients, three had no data available, leaving 80 (39 clonidine, 41 placebo) in the intention-to-treat analysis, modified for missing data. Median patient ages of the groups were similar (61 and 59 years), as were other baseline characteristics. Clonidine patients had a mean of 100.8 (95% confidence interval [CI] 38.2-163.4) minutes (p = 0.002) longer total sleep time (mean 497.2 vs. 396.4 min) and reported better sleep overall. Delirium was only observed in one patient prior to study drug infusion, and none at the end of the study. Safety outcomes were not different. Four clonidine patients had their medication ceased due to bradycardia and hypotension that required no additional treatment.

CONCLUSION

Among postoperative elective surgical patients admitted to HDU, low-dose non-titrated clonidine, compared to placebo, was associated with longer and subjectively better-quality sleep.

Effect of esketamine on haemodynamic fluctuations in patients undergoing hysteroscopic surgery: A prospective, double-blind randomized clinical trial

AIMS

We explored whether esketamine anesthesia during hysteroscopic surgery can reduce intraoperative hemodynamic fluctuations and improve patient benefit.

METHODS

A total of 170 patients undergoing hysteroscopic surgery were enrolled, and 151 patients were finally included in the analysis, among which 19 used vasoactive drugs during surgery. Patients were randomly assigned to either the esketamine anesthesia group (E group) or the sufentanil anesthesia group (S group). The primary outcomes were blood pressure and heart rate during the surgery. Secondary outcomes included resistance to laryngeal mask insertion, demand for propofol and remifentanil, nausea and vomiting, Richmond Agitation and Sedation Scale (RASS), dizziness and pain intensity after resuscitation, vasoactive medication treatment, hospitalization time and expenses.

RESULTS

E group had a more stable heart rate, systolic blood pressure, diastolic blood pressure and mean blood pressure than the S group (p < 0.001). Patients in E group had a higher demand for propofol (p < 0.001) but better RASS scores (p < 0.001) after resuscitation. The incidence of intraoperative vasoactive medication use was higher in the S group (18.4% vs. 6.7%, p = 0.029). There were no statistically significant differences in terms of resistance to laryngeal mask insertion, remifentanil demand, time required for resuscitation, postoperative pain, dizziness, nausea or vomiting.

CONCLUSIONS

Compared with sufentanil, esketamine-induced anesthesia during hysteroscopic surgery can reduce intraoperative hemodynamic fluctuations and the incidence of intraoperative vasoactive medication. Although esketamine-induced anesthesia may increase the demand for propofol during surgery, it does not affect the anesthesia recovery time and the quality of patient recovery is better.

Feasibility and safety of interactive virtual reality upper limb rehabilitation in patients with prolonged critical illness

OBJECTIVES

This study investigated the feasibility and safety of interactive virtual reality rehabilitation (VRR) for patients with a critical illness and a long stay in the intensive care unit (ICU), as a motivational tool for rehabilitation.

DESIGN

Single-centre, non-randomised proof-of-concept clinical trial.

PARTICIPANTS

Adult, calm, and alert critically ill patients with a prolonged stay (≥8 days) in the ICU.

METHODS

Patients received interactive VRR therapy for upper limb rehabilitation with a VR-app designed specifically for use in bedridden patients in the supine position. Feasibility was assessed by time registrations, questionnaires for patients and physiotherapists, as well as recording of all perceived barriers. Safety was assessed by recording (changes in) vital clinical parameters, as well as minor and major adverse events.

RESULTS

Twenty patients participated in 79 VRR sessions. Median durations of different session components were 2 minutes (interquartile range [IQR] = 2min, 3min) for set-up and explanation to the patient, 10 minutes (IQR = 10min, 15min) for training time, and 2 minutes (IQR = 2min, 2min) for ending the session and cleaning. The median fun score given by the patients after each session was 9 (IQR = 8, 10) out of 10. Physiotherapists reported no barriers other than a few time-consuming technical problems. Reported problems by patients were all minor and mostly technical. No major and no minor adverse events occurred.

CONCLUSIONS

Interactive upper limb VRR is a feasible, safe, and appreciated tool to use in rehabilitation of critically ill patients during their prolonged ICU stay. Subsequent future studies should focus on the effects of VRR on neuromuscular and cognitive function and the socioeconomic impact of exergaming for rehabilitation purposes of ICU patients.

Serum Levels of Bupivacaine After Bilateral Ultrasound-Guided Deep Parasternal Intercostal Plane Block in Cardiac Surgery with Median Sternotomy

OBJECTIVE

To evaluate systemic levels of bupivacaine after bilateral ultrasound-guided deep parasternal intercostal plan (PIP) block in cardiac surgical patients undergoing median sternotomy.

DESIGN

Prospective, observational study SETTING: Single institution; academic university hospital PARTICIPANTS: Twenty-eight adult patients undergoing cardiac surgery with median sternotomy received a PIP block with 2.5 mg/kg bupivacaine with or without dexamethasone and dexmedetomidine.

MEASUREMENTS

Arterial blood samples were analyzed for total serum bupivacaine concentration at 5, 15, 30, 45, 60, 90, 120, and 150 minutes after placement of PIP. Local anesthetic volume, local anesthetic adjuncts, time to extubation, postoperative pain scores, and opioid consumption were recorded.

MAIN RESULTS

The mean peak bupivacaine concentration was 0.60 ± 0.62 µg/mL, and the mean time to maximum concentration (Tmax) was 16.92 ± 12.97 minutes. Two patients (7.1%) had a concentration >2.0 µg/mL within 15 minutes of block placement. The mean Tmax of bupivacaine was significantly greater in patients who did not receive additives compared to those patients who did (22.86 ± 14.77 minutes v 10.0 ± 5.22 minutes; p = .004). The times to extubation and postoperative pain were not improved with additives.

CONCLUSIONS

Bilateral PIP placed at the end of cardiac surgery resulted in low systemic bupivacaine levels. The inclusion of additives shortened Tmax without improving outcome.

Serum Albumin Level at Intensive Care Unit Admission and Delirium Duration and Severity in Critically Ill Adults

BACKGROUND

Hypoalbuminemia has been associated with an increased risk of in-hospital delirium. However, the relationship between serum albumin levels and the duration and severity of delirium is not well defined.

OBJECTIVE

To investigate the relationship between albumin levels and delirium duration and severity.

METHODS

Study data were from a randomized controlled trial involving adult intensive care unit patients (≥ 18 years old) admitted to 3 academic hospitals from 2009 to 2015 who had positive delirium screening results on the Confusion Assessment Method for the Intensive Care Unit-7. Delirium severity was defined by mean Confusion Assessment Method for the Intensive Care Unit-7 scores by day 8. Delirum duration was defined by the number of delirium-free and coma-free days by day 8. Serum albumin levels within 72 hours of intensive care unit admission were collected from electronic medical records.

RESULTS

The study included 237 patients (mean age, 60.3 years; female sex, 52.7%; receiving mechanical ventilation, 59.5%; acute respiratory failure or sepsis, 57.8%). Serum albumin levels were categorized as 3 g/dL or greater (n = 13), 2.5 to 2.99 g/dL (n = 142), and less than 2.5 g/dL (n = 82). After adjustment for demographic and clinical characteristics, no significant associations between albumin levels and delirium duration or severity were found. However, patients with normal albumin levels (≥3 g/dL) had shorter stays than did patients with hypoalbuminemia.

CONCLUSION

In patients with delirium, higher albumin levels were associated with shorter hospital stays but not with delirium duration or severity.

INhaled Sedation versus Propofol in REspiratory failure in the Intensive Care Unit (INSPiRE-ICU1): protocol for a randomised, controlled trial

INTRODUCTION

Sedation in mechanically ventilated adults in the intensive care unit (ICU) is commonly achieved with intravenous infusions of propofol, dexmedetomidine or benzodiazepines. Significant limitations associated with each can impact their usage. Inhaled isoflurane has potential benefit for ICU sedation due to its safety record, sedation profile, lack of metabolism and accumulation, and fast wake-up time. Administration in the ICU has historically been restricted by the lack of a safe and effective delivery system for the ICU. The Sedaconda Anaesthetic Conserving Device-S (Sedaconda ACD-S) has enabled the delivery of inhaled volatile anaesthetics for sedation with standard ICU ventilators, but it has not yet been rigorously evaluated in the USA. We aim to evaluate the efficacy and safety of inhaled isoflurane delivered via the Sedaconda ACD-S compared with intravenous propofol for sedation of mechanically ventilated ICU adults in USA hospitals.

METHODS AND ANALYSIS

INhaled Sedation versus Propofol in REspiratory failure in the ICU (INSPiRE-ICU1) is a phase 3, multicentre, randomised, controlled, open-label, assessor-blinded trial that aims to enrol 235 critically ill adults in 14 hospitals across the USA. Eligible patients are randomised in a 1.5:1 ratio for a treatment duration of up to 48 (±6) hours or extubation, whichever occurs first, with primary follow-up period of 30 days and additional follow-up to 6 months. Primary outcome is percentage of time at target sedation range. Key secondary outcomes include use of opioids during treatment, spontaneous breathing efforts during treatment, wake-up time at end of treatment and cognitive recovery after treatment.

ETHICS AND DISSEMINATION

Trial protocol has been approved by US Food and Drug Administration (FDA) and central (Advarra SSU00208265) or local institutional review boards ((IRB), Cleveland Clinic IRB FWA 00005367, Tufts HS IRB 20221969, Houston Methodist IRB PRO00035247, Mayo Clinic IRB Mod22-001084-08, University of Chicago IRB21-1917-AM011 and Intermountain IRB 033175). Results will be presented at scientific conferences, submitted for publication, and provided to the FDA.

TRIAL REGISTRATION NUMBER

NCT05312385.

Dexmedetomidine decreases cerebral hyperperfusion incidence following carotid stenting: A double-blind, randomized controlled trial

BACKGROUND

Cerebral hyperperfusion syndrome (CHS) is a severe complication after carotid artery stenting (CAS). Dexmedetomidine (Dex) is an α2 adrenoceptor agonist with sedative, analgesic, and neuroprotective properties. This randomized, double-blind, placebo-controlled trial (ChiCTR1900024416) aims to investigate whether prophylactic low-dose Dex decreases CH-induced brain injury following CAS.

METHODS

After obtaining written informed consent, patients aged 18-80 who underwent CAS were enrolled between July 2019 and October 2022. Patients were randomly assigned to receive either intravenous Dex (0.1 μg/kg/h, until post-operative day 3) (n = 80) or placebo (normal saline) (n = 80). The primary endpoint was the incidence of CH and CHS assessed up to the third post-operative day. The secondary endpoints included National Institute of Health Stroke Scale (NIHSS) and Modified Rankin Scale (mRS) scores within 30 days of operation, extubation time, discharge from the hospital within 7 days post-operation, length of hospital stay post-operation, and all-cause 30-day mortality. Blood samples were collected before and after surgery for lipidomics, brain-derived neurotrophic factor (BDNF), and neurofilament light chain (Nfl) measurements. Acceptability, safety, and efficacy were evaluated by Cox model and logistic model.

FINDINGS

CH occurred in 30 (37.5%) of 80 patients who received a placebo compared to 9 (11.2%) of 80 patients given Dex (prevalence: odds ratio [OR]: 0.21, 95% confidence interval [CI]: 0.088-0.467; p < 0.001; incidence: hazard ratio [HR]: 0.27, 95% CI: 0.14-0.50; p < 0.001). CHS was significantly higher in the placebo group (13.75%) than in the Dex group (2.5%) (prevalence: [OR]: 0.161, 95% CI: 0.024-0.626; p = 0.020; incidence: [HR]: 0.17, 95% CI: 0.06-0.52; p = 0.009). Dex significantly upregulated BDNF, decreased Nfl, and uniquely increased lysophosphatidylethanolamine.

CONCLUSIONS

A low prophylactic dose of Dex significantly reduced the incidence of CH and CHS up to 72 h after CAS.

FUNDING

This work was funded by National Natural Science Foundation of China (no. 82271288) and the Henan Provincial Science and Technology Research Project (nos. 242300421192 and JQRC2023004).

Impact of emergence delirium on long-term survival in older patients after major noncardiac surgery: A longitudinal prospective observational study

STUDY OBJECTIVE

To test the hypothesis that emergence delirium might be associated with worse long-term survival.

DESIGN

A longitudinal prospective observational study.

SETTING

A tertiary hospital in Beijing, China.

PATIENTS

A total of 942 patients aged 65-90 years who were admitted to post-anesthesia care unit (PACU) after major noncardiac surgery under general anesthesia.

EXPOSURES

Emergence delirium was assessed with the Confusion Assessment Method for the Intensive Care Unit during PACU stay.

MEASUREMENTS

Patients were followed up once a year for at least 3 years. Our primary endpoint was overall survival. Secondary endpoints included recurrence-free and event-free survivals. Associations between emergence delirium and long-term survivals were analyzed with the Cox proportional hazard models.

MAIN RESULTS

Among enrolled patients, 915 completed perioperative assessments; 906 completed long-term follow-up (mean age 72 years; 60 % [545/906] male; 73 % [660/906] cancer surgery). At the end of follow-up (median 43 months), there were 69 deaths in 331 patients (21 %) with emergence delirium versus 114 deaths in 575 patients (20 %) without: unadjusted hazard ratio 1.10 (95 % CI: 0.81 to 1.48); P = 0.547; adjusted hazard ratio 0.96 (95 % CI: 0.70 to 1.32); P = 0.797. Recurrence-free survival was 73/331 (22 %) in patients with emergence delirium versus 121/575 (21 %) without: unadjusted hazard ratio 1.08 (95 % CI: 0.81 to 1.45); P = 0.598; adjusted hazard ratio 0.94 (95 % CI: 0.69 to 1.28); P = 0.695. Event-free survival was 159/331 (48 %) in patients with emergence delirium versus 268/575 (47 %) without: unadjusted hazard ratio 1.06 (95 % CI: 0.87 to 1.29); P = 0.563; adjusted hazard ratio 0.98 (95 % CI: 0.80 to 1.21); P = 0.875.

CONCLUSIONS

We did not find significant association between emergence delirium and worse long-term survival in older patients after general anesthesia and major surgery mainly for cancer. The effects of emergence delirium on long-term outcomes deserve further investigation.

CLINICAL TRIAL REGISTRATIONS

www.chictr.org.cn; ChiCTR-OOC-17012734.

The Role of Propofol in Alcohol Withdrawal Syndrome: A Systematic Review

The objective of this review was to evaluate the efficacy and safety of propofol in the treatment of critically ill patients diagnosed with alcohol withdrawal syndrome (AWS). A review was conducted in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) criteria, and Embase, MEDLINE (PubMed), Cochrane CENTRAL, and Web of Science were queried for results through June 2024. Studies providing efficacy or safety data associated with propofol with a reported diagnosis of AWS in critically ill patients were included. Studies evaluating pediatric patients, those without quantitative and qualitative outcome data, and those not readily translatable to English were excluded. Five retrospective cohort analyses of 218 patients were included in this systematic review. Patients were found to have both significant and non-significant increases in time to resolution of AWS symptoms when treated with propofol versus the AWS standard of care. Adjunct treatment with propofol was generally associated with reductions in total benzodiazepine use and increases in both ICU length of stay and duration of mechanical ventilation. The results of this systematic review provide the evidence necessary to support the use of propofol as an efficacious and safe medication in the management of severe and refractory AWS. Further investigation is required to determine optimal dosing strategies and durations of therapy. The results of this systematic review demonstrate the clinical utility of propofol as part of the management strategy for severe and refractory AWS.

Pharmacological and non-pharmacological interventions in patients undergoing nasal surgeries for prevention of emergence agitation: a systematic review and network meta-analysis

BACKGROUND

Emergence agitation is a common complication after nasal surgeries, marked by increased agitation and a heightened risk of injuries. Factors like urinary catheter, endotracheal tube, postoperative pain, and younger age contribute to its occurrence. Due to the variety of preventive approaches reported in the literature, a network meta-analysis is essential.

METHODS

This systematic review employs a network meta-analysis design, following Cochrane Handbook and PRISMA-NMA criteria. Inclusion criteria involve randomized controlled studies on pharmacological and non-pharmacological interventions for preventing emergence agitation in nasal surgeries. Electronic searches, including PubMed, Scopus, Embase, Cochrane Library, and Web of Science, without language or date restrictions, were conducted. Two independent reviewers selected studies, and data extraction was performed using standardized tables. Bayesian NMA, MetaInsight web app, and Cochrane Foundation Risk of Bias Assessment Tool were applied for data analysis and bias assessment.

RESULTS

After a rigorous selection process, 17 Randomized Controlled Trials (RCTs) encompassing 2,122 patients and 14 interventions were included. The best ranked treatments identified were intraoperative dexmedetomidine (1 μg.kg-1 for 10 minutes as a bolus, followed by 0.4 μg.kg-1.h-1), bilateral nasociliary and maxillary nerve block, ketamine (0.5 mg.kg-1 administered 20 minutes before the end of surgery), nasal compression for 40 minutes before anesthesia induction, and suction above the cuff of the endotracheal tube.

CONCLUSIONS

Both pharmacological and non-pharmacological interventions emerged as effective strategies in mitigating emergence agitation after nasal surgeries, offering clinicians valuable options for improving postoperative outcomes in this patient population.

Impact of Intraoperative Blood Transfusion on Cerebral Injury in Pediatric Patients Undergoing Congenital Septal Heart Defect Surgery

Background: The components of donor blood themselves have the potential to initiate a systemic inflammatory response and exacerbate neuroinflammation, resulting in subsequent cerebral injury. The aim of this study was to establish the role of transfusion in the development of cerebral injury during the correction of congenital heart defects in children. Material and Methods: A total of 78 patients aged from 1 to 78 months, with body weights ranging from 3.3 to 21.5 kg, were investigated. Biomarkers of cerebral injury and systemic inflammatory response were studied at three time points. First: prior to the surgical intervention. Second: after the completion of cardiopulmonary bypass. Third: 16 h after the conclusion of the surgery. Results: The strongest correlation was found for S-100-β protein with the volume of transfusion at the second (Rho = 0.48, p = 0.00065) and third time points (Rho = 0.36, p = 0.01330). Neuron-specific enolase demonstrated a similar trend: Rho = 0.41 and p = 0.00421 after the completion of cardiopulmonary bypass. Conclusions: The use of red blood cell suspension and its dosage per kilogram of body weight correlated with the biomarkers of cerebral injury and systemic inflammatory response with moderate to significant strength.

Association between delta anion gap/delta bicarbonate and outcome of surgical patients admitted to intensive care unit

BACKGROUND

Patients undergoing high-risk surgeries with acid-based disorders are associated with poor outcomes. The screening of mixed acid-based metabolic disorders by calculating delta anion gap (AG)/delta bicarbonate (Bic) has a clinically relevant role in patients with high AG metabolic acidosis (MA), however its utility in individuals facing high-risk surgical procedures remains unclear.

OBJECTIVE

Characterize metabolic acidosis using delta-AG/delta-Bic and its associations in patients undergoing high-risk surgeries with possible outcome-related complications.

DESIGN

Prospective observational multicentric study.

SETTING

Three tertiary hospitals in Brazil.

PATIENTS

Patients undergoing high-risk surgeries, aged 18 years or older, requiring postoperative critical care.

MAIN OUTCOME MEASURES

Patients undergoing high-risk surgeries monitored during the postoperative phase across three distinct intensive care units (ICUs), with assessment encompassing laboratory analyses upon admission and 24 h thereafter. Patients with MA and with elevated AG within 24 h were separated into 3 subgroups: [G1 - delta-AG/delta-Bic < 1.0] MA associated with hyperchloremia; [G2 - delta-AG/delta-Bic between 1.0 and 1.6] MA and no mixed disorders; and [G3 - delta-AG/delta-Bic > 1.6] MA associated with alkalosis. Primary endpoint was 30-day mortality. The secondary endpoints were cardiovascular, respiratory, renal, neurological, coagulation and infective complications.

RESULTS

From the 621 surgical patients admitted to ICU, 421 (51.7%) had any type of acidosis. After 24 h, 140 patients remained with MA with elevated AG (G1: 101, G2: 18, and G3: 21). When compared to patients from subgroups 1 and 3, the subgroup with no mixed disorders 2 showed higher 30-day mortality (adjusted HR = 3.72; 95% CI 1.11-12.89, p = 0.001), cardiovascular complications (p = 0.001), ICU mortality (p = 0.03) and sum of all complications during the ICU period (p = 0.021).

CONCLUSION

In the postoperative time, patients with metabolic acidosis and no mixed disorders present higher ICU-Mortality and higher cardiovascular postoperative complications when compared with patients with combined hyperchloremia or alkalosis. Delta-AG/delta-Bic can be a useful tool to evaluate major clinical outcomes in this population.

Utilization of NIRS Monitor to Compare the Regional Cerebral Oxygen Saturation Between Dexmedetomidine and Propofol Sedation in Mechanically Ventilated Critically ill Patients with Sepsis- A Prospective Randomized Control Trial

AIM & BACKGROUND

Delirium frequently occurs in the acute phase of sepsis and is associated with increased ICU and hospital length of stay, duration of mechanical ventilation, and higher mortality rates. We utilized the Near-Infrared Spectroscopy monitor to measure and compare the regional cerebral oxygen saturation in mechanically ventilated patients of sepsis receiving either dexmedetomidine or propofol sedation and assessed the association between delirium and regional cerebral oxygen saturation.

METHODS

A single center prospective randomized control trial conducted over a period of two years, 54 patients were included, equally divided between propofol and dexmedetomidine groups. Patients received a blinded study drug, propofol (10 mg/mL) or dexmedetomidine (5 mcg/mL) via infusion pump according to randomization. Infusion rates were adjusted every 10 min based on weight-based titration tables, aiming for target sedation (RASS -2 to 0). Management components included pain monitoring using the CPOT score and delirium assessment using CAM-ICU score.

RESULTS

Dexmedetomidine group showed higher mean regional cerebral oxygen saturation as compared to propofol group (P = .036). No significant differences were found in mechanical ventilation or ICU stay durations, delirium-free days, or sedation cessation reasons. Delirium occurred in 36 patients, with lower mean regional cerebral oxygen saturation as compared to non-delirious patients.

CONCLUSION

The dexmedetomidine group had higher regional cerebral oxygen saturation compared to the propofol group. Delirious patients showed lower cerebral oxygen saturation than non-delirious patients, suggesting a link between sedation type, cerebral oxygenation, and delirium.CTRI registration: REF/2021/11/048655 N.

Evaluation of Dexmedetomidine Withdrawal and Management After Prolonged Infusion

PURPOSE

Dexmedetomidine is often used for longer than its labeled indication of 24 hours, raising concerns for potential withdrawal. Data are limited regarding this syndrome in adult patients. This study aimed to further characterize dexmedetomidine withdrawal in critically ill adult patients after prolonged use.

METHODS

This was an institutional review board-approved, single-center, retrospective chart review conducted at a tertiary academic medical center. Adult intensive care unit (ICU) patients on dexmedetomidine for ≥72 hours in 2019 were screened for inclusion. Exclusion criteria were interruption of dexmedetomidine for >6 hours, indications for dexmedetomidine other than sedation, or patients with neurological or burn injury. The major end point was the incidence of dexmedetomidine withdrawal, defined as meeting ≥2 of the following criteria within 24 hours of discontinuation: newly positive Confusion Assessment Method for ICU, Richmond Agitation Sedation Scale score of ≥+2, hypertension, and tachycardia. Minor end points were incidence of individual withdrawal signs as previously described, additional sedatives or antipsychotics required, dose and duration of dexmedetomidine infusion, length of ventilation, ICU and hospital length of stay, and new onset of the following: fever, vomiting, loose stools/diarrhea, diaphoresis, or seizure.

FINDINGS

Of the 152 patients included, dexmedetomidine withdrawal occurred in 54 patients (35.5%). Rebound hypertension was the most common withdrawal sign (47 patients [87.0%]). In the withdrawal group, significantly more patients required additional β-blockers (29 [53.7%] vs 10 [10.2%]; P < 0.01), were reinitiated on dexmedetomidine (16 [29.6%] vs 10 [10.2%]; P < 0.01), and required a start or increased dose of clonidine (6 [11.1%] vs 3 [3.1%]; P = 0.04). There was no significant difference in the cumulative dose or duration of dexmedetomidine between the groups. Length of ventilation was longer in the withdrawal group (171 hours [83.7-280.8 hours] vs 159 hours [149.0-335.7 hours]; P < 0.01), but there was no difference in ICU or hospital length of stay.

IMPLICATIONS

Prolonged use of dexmedetomidine was associated with withdrawal syndrome in 35.5% of patients in our study. Larger trials are needed to confirm the risk factors for dexmedetomidine withdrawal and identify measures to prevent withdrawal.

Heterogeneous impact of Sighs on mortality in patients with acute hypoxemic respiratory failure: insights from the PROTECTION study

BACKGROUND

Sigh breaths may impact outcomes in acute hypoxemic respiratory failure (AHRF) during assisted mechanical ventilation. We investigated whether sigh breaths may impact mortality in predefined subgroups of patients enrolled in the PROTECTION multicenter clinical trial according to: 1.the physiological response in oxygenation to Sigh (responders versus non-responders) and 2.the set levels of positive end-expiratory pressure (PEEP) (High vs. Low-PEEP). If mortality differed between Sigh and No Sigh, we explored physiological daily differences at 7-days.

RESULTS

Patients were randomized to pressure support ventilation (PSV) with Sigh (Sigh group) versus PSV with no sigh (No Sigh group). (1) Sighs were not associated with differences in 28-day mortality in responders to baseline sigh-test. Contrarily-in non-responders-56 patients were randomized to Sigh (55%) and 28-day mortality was lower with sighs (17%vs.36%, log-rank p = 0.031). (2) In patients with PEEP > 8cmH2O no difference in mortality was observed with sighs. With Low-PEEP, 54 patients were randomized to Sigh (48%). Mortality at 28-day was reduced in patients randomised to sighs (13%vs.31%, log-rank p = 0.021). These findings were robust to multivariable adjustments. Tidal volume, respiratory rate and ventilatory ratio decreased with Sigh as compared with No Sigh at 7-days. Ventilatory ratio was associated with mortality and successful extubation in both non-responders and Low-PEEP.

CONCLUSIONS

Addition of Sigh to PSV could reduce mortality in AHRF non-responder to Sigh and exposed to Low-PEEP. Results in non-responders were not expected. Findings in the low PEEP group may indicate that insufficient PEEP was used or that Low PEEP may be used with Sigh. Sigh may reduce mortality by decreasing physiologic dead space and ventilation intensity and/or optimizing ventilation/perfusion mismatch.

CLINICAL TRIAL REGISTRATION

ClinicalTrials.gov; Identifier: NCT03201263.

Mobility Loss in Hospitalized Adults Predicts Poor Clinical Outcomes

BACKGROUND

The Johns Hopkins Activity and Mobility Program is a systematic approach to measure and improve patient mobility.

PURPOSE

The purpose of this study was to evaluate the relationship between mobility loss and quality outcomes.

METHODS

A retrospective cohort study design was used. Patients were categorized into 3 groups (gain, loss, no change in mobility) using the Johns Hopkins Highest Level of Mobility (JH-HLM) scores. The association between mobility loss and falls risk, in-hospital mortality, delirium, discharge to a facility, length of stay, and 30 day readmissions were assessed.

RESULTS

Those who lost mobility were more at risk of being a high fall risk, in-hospital mortality, delirium, discharging to a facility, and had 48% longer lengths of stay. There was no association between mobility loss and 30-day readmissions.

CONCLUSIONS

Loss of mobility assessed using JH-HLM scores is associated with worse patient outcomes.

Intraoperative hypotension is associated with decreased long-term survival in older patients after major noncardiac surgery: Secondary analysis of three randomized trials

STUDY OBJECTIVE

To assess the association of intraoperative hypotension with long-term survivals in older patients after major noncardiac surgery mainly for cancer.

DESIGN

A secondary analysis of databases from three randomized trials with long-term follow-up.

SETTING

The underlying trials were conducted in 17 tertiary hospitals in China.

PATIENTS

Patients aged 60 to 90 years who underwent major noncardiac thoracic or abdominal surgeries (≥ 2 h) in a single center were included in this analysis.

EXPOSURES

Restricted cubic spline models were employed to determine the lowest mean arterial pressure (MAP) threshold that was potentially harmful for long-term survivals. Patients were arbitrarily divided into three groups according to the cumulative duration or area under the MAP threshold. The association between intraoperative hypotension exposure and long-term survivals were analyzed with the Cox proportional hazard regression models.

MEASUREMENTS

Our primary endpoint was overall survival. Secondary endpoints included recurrence-free and event-free survivals.

MAIN RESULTS

A total of 2664 patients (mean age 69.0 years, 34.9% female sex, 92.5% cancer surgery) were included in the final analysis. MAP < 60 mmHg was adopted as the threshold of intraoperative hypotension. Patients were divided into three groups according to duration under MAP < 60 mmHg (<1 min, 1-10 min, and > 10 min) or area under MAP <60 mmHg (< 1 mmHg⋅min, 1-30 mmHg⋅min, and > 30 mmHg⋅min). After adjusting confounders, duration under MAP < 60 mmHg for > 10 min was associated with a shortened overall survival when compared with the < 1 min patients (adjusted hazard ratio [HR] 1.31, 95% confidence interval [CI] 1.09 to 1.57, P = 0.004); area under MAP < 60 mmHg for > 30 mmHg⋅min was associated with a shortened overall survival when compared with the < 1 mmHg⋅min patients (adjusted HR 1.40, 95% CI 1.16 to 1.68, P < 0.001). Similar associations exist between duration under MAP < 60 mmHg for > 10 min or area under MAP < 60 mmHg for > 30 mmHg⋅min and recurrence-free or event-free survivals.

CONCLUSIONS

In older patients who underwent major noncardiac surgery mainly for cancer, intraoperative hypotension was associated with worse overall, recurrence-free, and event-free survivals.

Prospective Observational Study of Volatile Sedation with Sevoflurane After Aneurysmal Subarachnoid Hemorrhage Using the Sedaconda Anesthetic Conserving Device

BACKGROUND

Volatile sedation is still used with caution in patients with acute brain injury because of safety concerns. We analyzed the effects of sevoflurane sedation on systemic and cerebral parameters measured by multimodal neuromonitoring in patients after aneurysmal subarachnoid hemorrhage (aSAH) with normal baseline intracranial pressure (ICP).

METHODS

In this prospective observational study, we analyzed a 12-h period before and after the switch from intravenous to volatile sedation with sevoflurane using the Sedaconda Anesthetic Conserving Device with a target Richmond Agitation Sedation Scale score of - 5 to - 4. ICP, cerebral perfusion pressure (CPP), brain tissue oxygenation (PBrO2), metabolic values of cerebral microdialysis, systemic cardiopulmonary parameters, and the administered drugs before and after the sedation switch were analyzed.

RESULTS

We included 19 patients with a median age of 61 years (range 46-78 years), 74% of whom presented with World Federation of Neurosurgical Societies grade 4 or 5 aSAH. We observed no significant changes in the mean ICP (9.3 ± 4.2 vs. 9.7 ± 4.2 mm Hg), PBrO2 (31.0 ± 13.2 vs. 32.2 ± 12.4 mm Hg), cerebral lactate (5.0 ± 2.2 vs. 5.0 ± 1.9 mmol/L), pyruvate (136.6 ± 55.9 vs. 134.1 ± 53.6 µmol/L), and lactate/pyruvate ratio (37.4 ± 8.7 vs. 39.8 ± 9.2) after the sedation switch to sevoflurane. We found a significant decrease in mean arterial pressure (MAP) (88.6 ± 7.6 vs. 86.3 ± 5.8 mm Hg) and CPP (78.8 ± 8.5 vs. 76.6 ± 6.6 mm Hg) after the initiation of sevoflurane, but the decrease was still within the physiological range requiring no additional hemodynamic support.

CONCLUSIONS

Sevoflurane appears to be a feasible alternative to intravenous sedation in patients with aSAH without intracranial hypertension, as our study did not show negative effects on ICP, cerebral oxygenation, or brain metabolism. Nevertheless, the risk of a decrease of MAP leading to a consecutive CPP decrease should be considered.

Randomized feasibility trial for evaluating the impact of primary nursing on delirium duration during intensive care unit stay

OBJECTIVE

We tested the feasibility of a randomized controlled trial for comparing primary nursing with standard care.

RESEARCH METHODOLOGY

Elective cardiac surgical patients were eligible for inclusion. Patients with an intensive care unit stay of ≥ 3 days were followed up until intensive care unit discharge. Recruitment period was one year.

SETTING

Two intensive care units at a university hospital specialized in cardiovascular and diabetic diseases.

MAIN OUTCOME MEASURES

Primary outcomes were recruitment and delivery rate. Primary clinical outcome was duration of delirium, as assessed by the Confusion Assessment Method for Intensive Care Units. Secondary outcomes included the incidence of delirium, anxiety (10-point Numeric Rating Scale), and the satisfaction of patient relatives (validated questionnaire).

RESULTS

Of 369 patients screened, 269 could be allocated to primary nursing (n = 134) or standard care (n = 135), of whom 46 patients and 48 patients, respectively, underwent an intensive care unit stay ≥ 3 days. Thus, recruitment and delivery rates were 73 and 26 %, respectively. During primary nursing and standard care, 18 and 24 patients developed a delirium, with a median duration of 32 (IQR: 14-96) and 24 (IQR: 8-44) hours (P = 0.10). The risk difference of delirium for primary nursing versus standard care was 11 % and the relative risk was 0.65 (95 % CI: 0.28-1.46; P = 0.29). The extent of anxiety was similar between groups (P = 0.13). Satisfaction could be assessed in 73.5 % of relatives, without substantial differences between groups.

CONCLUSION

Data demonstrate that a trial for comparing primary nursing with standard care is generally feasible. However, the incidence of delirium may be a better primary outcome parameter than delirium duration, both in terms of long-term patient outcome and robustness of data quality.

IMPLICATIONS FOR CLINICAL PRACTICE

A randomized clinical trial regarding nursing organization during intensive care unit stay requires detailed planning of patient recruitment, data evaluation, and power calculation.

Delirium detection in the emergency department: A diagnostic accuracy meta-analysis of history, physical examination, laboratory tests, and screening instruments

INTRODUCTION

Geriatric emergency department (ED) guidelines emphasize timely identification of delirium. This article updates previous diagnostic accuracy systematic reviews of history, physical examination, laboratory testing, and ED screening instruments for the diagnosis of delirium as well as test-treatment thresholds for ED delirium screening.

METHODS

We conducted a systematic review to quantify the diagnostic accuracy of approaches to identify delirium. Studies were included if they described adults aged 60 or older evaluated in the ED setting with an index test for delirium compared with an acceptable criterion standard for delirium. Data were extracted and studies were reviewed for risk of bias. When appropriate, we conducted a meta-analysis and estimated delirium screening thresholds.

RESULTS

Full-text review was performed on 55 studies and 27 were included in the current analysis. No studies were identified exploring the accuracy of findings on history or laboratory analysis. While two studies reported clinicians accurately rule in delirium, clinician gestalt is inadequate to rule out delirium. We report meta-analysis on three studies that quantified the accuracy of the 4 A's Test (4AT) to rule in (pooled positive likelihood ratio [LR+] 7.5, 95% confidence interval [CI] 2.7-20.7) and rule out (pooled negative likelihood ratio [LR-] 0.18, 95% CI 0.09-0.34) delirium. We also conducted meta-analysis of two studies that quantified the accuracy of the Abbreviated Mental Test-4 (AMT-4) and found that the pooled LR+ (4.3, 95% CI 2.4-7.8) was lower than that observed for the 4AT, but the pooled LR- (0.22, 95% CI 0.05-1) was similar. Based on one study the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) is the superior instrument to rule in delirium. The calculated test threshold is 2% and the treatment threshold is 11%.

CONCLUSIONS

The quantitative accuracy of history and physical examination to identify ED delirium is virtually unexplored. The 4AT has the largest quantity of ED-based research. Other screening instruments may more accurately rule in or rule out delirium. If the goal is to rule in delirium then the CAM-ICU or brief CAM or modified CAM for the ED are superior instruments, although the accuracy of these screening tools are based on single-center studies. To rule out delirium, the Delirium Triage Screen is superior based on one single-center study.

A prospective longitudinal cohort study of the association between nurses' subjective and objective workload

Critical care nurses have high workloads due to the severity of the disease and the complexity of the treatment and care. Understanding the factors that influence subjective workload as well as the association between subjective and objective workload could lead to new insights to reduce critical care nurses' workload. (1) To describe critical care nurses' subjective and objective workload per shift in a university-affiliated interdisciplinary adult intensive care unit in Switzerland and (2) to explore the association between objective and subjective workload. The study used a prospective longitudinal cohort design. Critical care nurses completed the adapted Questionnaire on the Experience and Evaluation of Work 2.0 (QEEW2.0) to assess the subjective workload after every shift for four weeks (0 = never loaded, 100 = always loaded). The objective workload was assessed with the Therapeutic Intervention Scoring System-28 (TISS-28), Nine Equivalents of Nursing Manpower Use Score (NEMS), Swiss Society for Intensive Care Medicine (SGI)-patients' categories and Patient-to-Nurse Ratio (PNR). Data was analysed using multilevel mixed models. The workload of 60 critical care nurses with a total of 765 shifts were analysed. The critical care nurses experienced a subjective high mental load (66 ± 26), moderate pace and amount of work (30 ± 25) and physical load (33 ± 25), and low emotional-moral load (26 ± 22). The one-time baseline subjective workload values were higher than the day-to-day values. The mean objective shift load using the TISS-28 was 43 ± 16 points, the NEMS 36 ± 14 points, the SGI-category 1.1 ± 0.5 nurses needed per patient and the PNR 1.2 ± 0.4. We found positive associations between day-to-day objective variables with subjective pace and amount of work, with physical and mental load but not with emotional-moral load and performance. Measured objective workload is associated with only certain subjective workload domains. To promote and retain critical care nurses in the profession, nursing management should give a high priority to understanding subjective workload and strategies for reducing it.

Critically ill patients' experiences of discomfort and comfort in the intensive care unit: A qualitative descriptive study

BACKGROUND

The physiological state of critically ill patients is severely impaired by illness or trauma and is uncomfortable. Such experiences cause long-term anxiety and post-traumatic stress disorder.

OBJECTIVE

This study aimed to understand discomfort and comfort based on the experiences of critically ill adult patients in the intensive care unit and to explore ways to improve their comfort.

METHODS

This qualitative descriptive study was conducted with 15 critically ill patients (age range: 46-81 years; six females) in the intensive care unit using semistructured interviews and participant observation. The data collected were analysed using Braun and Clarke's thematic analysis. Data were collected from the intensive care unit and general ward of a university hospital in Japan.

FINDINGS

Six themes related to discomfort and comfort were identified. The three themes related to discomfort were "overlapping uncertainties", "being unable to control physical discomfort", and "having to endure psychologically and situationally". The three themes related to comfort were "feeling connected brings calm", "routine care relieves pain and thirst", and "ease when one can decide for oneself". Participants' discomfort involved physical and psychological factors and was related to treatments, procedures, care, and the environment. Moreover, more than half of the patients endured unmet needs. Comfort was brought about by providing routine care for physical discomforts that critically ill patients often experience, feeling alive and connected to others and encouraging independence.

CONCLUSION

Recognising the potential for physical and psychological discomfort, as well as communication and other difficulties, in critically ill patients is crucial. Patients may also experience discomfort when healthcare providers take the lead, which underscores the importance of involving patients in their care. By showing respect for patients' intentions and involving them in decision-making, healthcare providers can improve patient comfort and promote a more collaborative approach to care.

Impact of new lighting technology versus traditional fluorescent bulbs on sedation and delirium in the ICU

BACKGROUND

Critically ill patients frequently encounter disruptions in their circadian rhythms in the intensive care unit (ICU) environment. New lighting systems have been developed to enhance daytime light levels and to promote circadian alignment.

OBJECTIVES

To investigate the impact of implementing an innovative lighting technology that mimics natural light and reproduce the colour of the sky.

DESIGN

Prospective, observational, non-randomized comparative trial. ICU patients were exposed to either a cutting-edge lighting system based on new technology (intervention group) or a conventional lighting system using fluorescent bulbs (control group).

SETTING

An Italian intensive care unit with ten beds and five windowless rooms, thereby denying access to natural light. Three rooms had new lighting technology.

MAIN OUTCOME MEASURES

The two groups were compared to assess the prevalence or absence of delirium and the need for sedatives during ICU stay. The secondary aim was to assess the presence of anxiety, depression, and post-traumatic stress disorder in patients at 3, 6, and 12 months after ICU discharge.

RESULTS

86 patients were included: 52 (60 %) in the intervention group and 34 (40 %) in the control group. Seventy-nine patients (82 %) were alive at ICU discharge. Fourteen patients (16 %) developed delirium (intervention group: n = 8 [15 %] vs. control group: n = 6 [18 %] in the control group, (P=0.781). The use of sedative drugs and neuromuscular blocking agents was similar in both the groups. No differences in the incidence of anxiety, depression, or post-traumatic stress disorders were observed among patients who underwent follow-up visits.

CONCLUSIONS

Compared to traditional fluorescent tube lighting, the innovative lighting system did not provide any significant benefit in reducing the frequency of delirium or the necessity for sedative medications.

IMPLICATIONS FOR CLINICAL PRACTICE

A single intervention, the use of lights that mimic sunny light and the sky, did not result in a statistically significant reduction in the incidence of delirium. Delirium has a multifactorial aetiology, necessitating interventions that are multifaceted and address different domains.

Effects of dexmedetomidine versus propofol on outcomes in critically ill patients with different sedation depths: a propensity score-weighted cohort study

OBJECTIVE

We explored the effects of dexmedetomidine (DEX) versus propofol on outcomes in critically ill patients and to assess whether these effects are dissimilar under different sedation depths.

METHODS

A stabilized inverse probability of treatment weighting cohort study was conducted using data from the Medical Information Mart for Intensive Care IV database from 2008 to 2019. Adult intensive care unit (ICU) patients who were administered DEX or propofol as the primary sedative were identified. Various statistical methods were used to evaluate the effects of DEX versus propofol on outcomes.

RESULTS

Data on 107 and 2318 patients in DEX and propofol groups, respectively, were analyzed. Compared to the propofol group, the DEX group exhibited longer ventilator-free days on day 28 and a shorter ICU stay. Conversely, it showed null associations of DEX with the risk of 90-day ICU mortality, the odds of persistent organ dysfunction on day 14 and acute kidney injury, and the duration of vasopressor-free days on day 28. Subgroup analyses revealed that DEX positively impacted persistent organ dysfunction on day 14, ventilator-free days on day 28, and ICU stay in the subgroup with a Richmond Agitation Sedation Scale (RASS) score of ≥-2. However, DEX negatively impacted 90-day ICU mortality, persistent organ dysfunction on day 14, and ventilator-free days on day 28 in the subgroup with a RASS score of <-2.

CONCLUSION

Our results indicated that, compared with propofol, DEX had beneficial and adverse impacts on certain ICU outcomes in critically ill patients, and these impacts appeared to depend on sedation depths.

Improving Pain Management in the Intensive Care Unit by Assessment

PURPOSE

Patients in the intensive care unit suffer from pain caused by life-threatening illness or injury but also treatments such as surgery and nursing procedures such as venipuncture. Unconsciousness following head trauma or sedation stage complicates self-report, and both under- and over-management of pain can occur. Inadequate assessment and treatment might follow from unsuitable pain assessment practices. The aim of this study was to evaluate the effect of the implementation of a pain assessment tool on nurses` documentation of pain and the administration of analgesia and sedation.

DESIGN

Quantitative pre-post design.

METHODS

The study was conducted at one intensive care unit at a university hospital and involved 60 patient records and 30 pre-implementations and 30 post-implementations of the Critical-Care Pain Observation Tool (CPOT).

RESULTS

After implementation, a 38% adherence rate was found. The frequency of nurses' pain evaluations increased significantly from 1.3 to 2.3 per nursing shift. The implementation of CPOT also improved how often nurses identified pain by use of facial expressions, muscle tension, and cooperation with the mechanical ventilator, whereas focus on vital signs dropped (p = .014). A larger proportion of patients (17%) received paracetamol after the CPOT implementation compared with before (8%). Findings were statistically significant at p < .01.

CONCLUSIONS

Implementation of CPOT increased the frequency of pain evaluations, and the observable patient behavior was more often interpreted as pain-related. Nurses' adherence rate to sustained patient behavior focus being modest highlights the essential need for ongoing improvements in practice. Implementation of a new tool must be followed by non-pharmacological and pharmacological pain management steps.

CLINICAL IMPLICATIONS

Implementing the CPOT as a pain assessment tool has the potential to enhance assessment practices. However, it is important to note that simply increasing assessment frequency does not guarantee nursing interventions to alleviate pain. This indicates the need for additional steps to be taken in order for nurses to complete the pain assessment cycle and effectively address interventions and reassessments.

The Development a Pediatric Catatonia Clinical Roadmap for Clinical Care at Vanderbilt University Medical Center

INTRODUCTION

Pediatric catatonia is associated with a high degree of morbidity and mortality in children. However, pediatric catatonia is highly responsive to treatment if rapidly identified and appropriate interventions are administered. To our knowledge, there are no current publications which propose a systematic approach for the management of pediatric catatonia. The aim of our report was to create multidisciplinary clinical care roadmap for catatonia in the inpatient pediatric setting within Vanderbilt University Medical Center (VUMC).

METHODS

At VUMC, we formed a team of pediatric providers from child and adolescent psychiatry, rheumatology, neurology, pediatric hospital medicine, and pediatric psychology. Our team met on a regular basis over the course of 2022 - 2024 to review the current literature on pediatric catatonia and develop a consensus for clinical assessment and management.

RESULTS

We determined consensus recommendations from our VUMC multidisciplinary team for the following domains of pediatric catatonia inpatient clinical care: initial assessment of pediatric catatonia in the inpatient pediatric settings, medical and psychiatric work up for pediatric catatonia, the lorazepam challenge in pediatric populations, behavioral and environmental considerations, and the use of electroconvulsive therapy and alternative psychopharmacologic interventions in pediatric catatonia.

CONCLUSIONS

Pediatric catatonia is a condition associated with a high degree of morbidity and mortality but is responsive to treatment if diagnosed and treated early. The inpatient pediatric medical setting provides a unique opportunity for identification and treatment. Our clinical care roadmap provides tools for inpatient clinicians at VUMC to identify pediatric catatonia and initiate an evidence-based approach to medical workup, management, and clinical care. This approach has the potential to significantly improve longitudinal outcomes and quality of life improvements for children at VUMC with catatonia and their families.

Mechanical ventilation settings during weaning from venovenous extracorporeal membrane oxygenation

BACKGROUND

The optimal timing of weaning from venovenous extracorporeal membrane oxygenation (VV ECMO) and its modalities have been rarely studied.

METHODS

Retrospective, multicenter cohort study over 7 years in two tertiary ICUs, high-volume ECMO centers in France and Italy. Patients with ARDS on ECMO and successfully weaned from VV ECMO were classified based on their mechanical ventilation modality during the sweep gas-off trial (SGOT) with either controlled mechanical ventilation or spontaneous breathing (i.e. pressure support ventilation). The primary endpoint was the time to successful weaning from mechanical ventilation within 90 days post-ECMO weaning.

RESULTS

292 adult patients with severe ARDS were weaned from controlled ventilation, and 101 were on spontaneous breathing during SGOT. The 90-day probability of successful weaning from mechanical ventilation was not significantly different between the two groups (sHR [95% CI], 1.23 [0.84-1.82]). ECMO-related complications were not statistically different between patients receiving these two mechanical ventilation strategies. After adjusting for covariates, older age, higher pre-ECMO sequential organ failure assessment score, pneumothorax, ventilator-associated pneumonia, and renal replacement therapy, but not mechanical ventilation modalities during SGOT, were independently associated with a lower probability of successful weaning from mechanical ventilation after ECMO weaning.

CONCLUSIONS

Time to successful weaning from mechanical ventilation within 90 days post-ECMO was not associated with the mechanical ventilation strategy used during SGOT. Further research is needed to assess the optimal ventilation strategy during weaning off VV ECMO and its impact on short- and long-term outcomes.

Induction to Methadone 80 mg in the First Week of Treatment of Patients Who Use Fentanyl: A Case Series From an Outpatient Opioid Treatment Program

OBJECTIVES

Current guidelines for methadone titration may unnecessarily delay reaching effective doses for patients using fentanyl, resulting in an increased risk of ongoing fentanyl use, dissatisfaction with treatment, and early dropout. Development and evaluation of rapid methadone induction protocols may improve treatment for patients using fentanyl.

METHODS

Retrospective chart review was conducted for patients admitted in 2022 to a single licensed opioid treatment program (OTP) where a rapid induction protocol provides methadone 40 mg on day 1, 60 mg on day 2, and 80 mg on day 3 to patients using fentanyl <65 years old without significant medical comorbidities. The primary feasibility outcome was completion of the protocol, defined by receipt of methadone dose 80 mg or more on treatment day 7. The primary safety outcomes were oversedation, nonfatal overdose, and death. A secondary outcome was retention in treatment at 30 days.

RESULTS

Rapid induction was ordered for 93 patients and completed by 65 (70%). Average dose on day 7 for patients who completed was 89 mg (SD 9.5 mg) versus 49 mg (SD 14.0 mg) for those who did not. No episodes of oversedation, nonfatal overdose, or death were observed. At 30 days, 85% of the patients who had the rapid protocol ordered (79/93) were retained, with 88% (57/65) who completed the protocol retained versus 79% (22/28) who did not complete (OR 1.9, 95% CI 0.6-6.2).

CONCLUSIONS

Rapid induction to methadone 80 mg by day 7 was feasible for outpatients using fentanyl in this study at a single OTP. No significant safety events were identified.

Rehabilitation and Physiotherapy Action Strategy for an Acute Case of Lateral Medullary Syndrome: A Case Report

Lateral medullary syndrome (LMS) may result from a failure in either the vertebral artery or the posterior inferior cerebellar artery. Stroke is the most common cause of LMS. To achieve bronchial hygiene and improve the patient's condition, chest physiotherapy was initiated due to his confined condition during the acute stage. As a result, a four-week physiotherapy program was established and administered twice daily to the patient, with noticeable results. A physical examination revealed that the patient exhibited tachycardia, dyspnea, intracranial nerve palsies on the left side, thermoanesthesia on the right, horizontal nystagmus, and ptosis and miosis in the left eye associated with Horner syndrome. After receiving appropriate conservative care, the patient was discharged from the hospital with the fewest possible disabilities.

Measuring pain or discomfort during routine nursing care in lightly sedated mechanically ventilated intensive care patients: A prospective preliminary cohort study

BACKGROUND

Pain is routinely measured on mechanically ventilated ICU patients. However, the tools used are not designed to discriminate between pain and non-pain discomfort, a distinction with therapeutic implications.

OBJECTIVES

To evaluate whether clinical measurement tools can discern both pain and non-pain discomfort.

METHODS

A prospective observational cohort study was conducted in a General ICU at a tertiary Medical Center in Israel. The Behavior Pain Scale (BPS) and Visual Analog Scale (VAS) of Discomfort were simultaneously assessed by a researcher and bedside nurse on thirteen lightly sedated patients during 71 routine nursing interventions in lightly sedated, mechanically ventilated, adult patients. Patients were asked whether they were in pain due to these interventions.

RESULTS

Statistically significant increases from baseline during interventions were observed [median change: 1.00 (-1-5), 1.5(-4-8.5), p < 0.001] as measured by BPS and VAS Discomfort Scale, respectively. BPS scores ranged between 4 and 6 when the majority (53 %) of the patients replied that they had no pain but were interpreted by the clinicians as discomfort. Endotracheal suctioning caused the greatest increase in BPS and VAS, with no statistically significant differences in BPS and VAS Discomfort Scale scores whether patients reported or did not report pain. A BPS>6 had a higher sensitivity and specificity to reported pain (accuracy of 76 %) compared to a BPS of 4-6.

CONCLUSIONS

Standard assessments are sensitive to pain caused by routine nursing care interventions. However, this study presents evidence that among lightly sedated ICU patients, moderate BPS scores could also measure non-pain discomfort. ICU nurses should be aware that signs of unpleasantness measured by a pain scale could reflect non-pain discomfort.

The effect of magnesium sulfate on emergence agitation in surgical adult patients undergoing general anesthesia: A systematic review and meta-analysis of randomized controlled trials

STUDY OBJECTIVE

Investigating the effect of magnesium sulfate (MS) on emergence agitation (EA) in adult surgical patients following general anesthesia (GA).

DESIGN

Systematic literature review and meta-analysis (PROSPERO number: CRD42023461988).

SETTING

Review of published literature.

PATIENTS

Adults undergoing GA.

INTERVENTIONS

Intravenous administration of MS.

MEASUREMENTS

We searched PubMed/MEDLINE, EMBASE, the Cochrane Library, Scopus, and Web of Science for publications until September 14, 2023. The primary outcome was the incidence of EA, while the secondary outcomes included the impact of MS on postoperative agitation score (PAS), emergence variables and adverse events. Relative risk (RR) with 95% confidence interval (CI) measured dichotomous outcome, while standardized mean difference (SMD) or mean difference (MD) with 95% CI measured continuous outcomes.

MAIN RESULTS

Meta-analysis of five randomized controlled trials (RCTs) indicated that MS was associated with a lower incidence of EA at various time points (0 min: RR = 0.62, 95% CI [0.41, 0.95]; p = 0.183, I2 = 43.6%; 5 min: RR = 0.29, 95% CI [0.16, 0.52]; p = 0.211, I2 = 36%; 10 min: RR = 0.14, 95% CI [0.06, 0.32]; p = 0.449, I2 = 0%; 15 min: RR = 0.11, 95% CI [0.02, 0.55]; p = 0.265, I2 = 19.5%; 30 min: RR = 0.05, 95% CI [0.00, 0.91]; the postoperative period: RR = 0.21, 95% CI [0.09, 0.49]; p = 0.724, I2 = 0%;). Additionally, MS was associated with a reduced PAS at various time points except for 0 min. However, no significant differences were observed in extubation time, the length of stay in the post-anesthesia care unit, postoperative nausea and vomiting or total complications.

CONCLUSIONS

Limited available evidence suggests that MS was associated with a lower incidence of EA. Nevertheless, further high-quality studies are warranted to strengthen and validate the effect of MS in preventing EA in adult surgical patients.

Physical restraint and associated agitation

BACKGROUND

Physical restraint of patients in intensive care units (ICUs) has an estimated prevalence of 50%. Many medical centres do not have specific protocols for physical restraint, and the decision of whether to physically restrain a patient is up to the nursing staff. Disadvantages of physical restraint include injuries, exacerbation of agitation and an increased risk of developing post-traumatic stress disorder (PTSD).

AIM

To report prevalence and outcomes in terms of morbidity and mortality of physical restraint in general ICU patients in an 800-bed secondary medical centre.

STUDY DESIGN

This retrospective study included 647 patients admitted to a general ICU in an 800-bed secondary medical centre in Kfar Saba, Israel, between January and December 2020. Data included demographics, medical history, length of stay, need for mechanical ventilation, number of ventilation days, 28-day mortality, reason for admission, agitation rate assessed by Richmond Agitation and Sedation Scale (RASS) score, need for physical restraint and need for anti-psychotics.

RESULTS

Among the patients, 40% (256 of 647) required physical restraint. Older adult patients had a greater likelihood of being physically restrained along with those admitted because of sepsis or acute respiratory failure. Among the study sample, 11% (71 of 647) required anti-psychotics. Patients who were restrained had longer duration of ventilation (5.9 ± 8.2 vs. 0.36 ± 1.4 days; p < .001) and higher 28-day mortality (0.26 ± 0.45 vs. 0.07 ± 0.25, Z = 6.86, p < .001). There was no difference in medical history, except for chronic drug abuse, which was more frequent in the restraint group (18 [6.9%] vs. 11 [2.8%], respectively; p = .019), as well as the use of anti-psychotic medications (24 [9.3%] vs. 19 [4.8%], respectively; p = .034) and anti-depressants (55 [21.2%] vs. 59 [14.8%], respectively; p = .042). The restraint group had higher disease severity scores, as reflected in requirements for vasopressor support (174 [67.2%] vs. 69 [17.3%], respectively; p < .001) and need for dialysis (39 [15.1%] vs. 19 [4.8%], respectively; p < .001); higher frequency of in-hospital anti-psychotic treatment (60 [23.2%] vs. 11 [2.8%], respectively; p < .001); a greater tendency for agitation events and more severe agitation scores (episodes of RASS above zero [1.7 ± 4.0 vs. 0.04 ± 0.27, respectively; p < .001] and maximum RASS score [0.19 ± 1.6 vs. 0.01 ± 0.54, respectively; p < .001]). Overall, advanced age, number of ventilation days and need for dialysis were associated with increased 28-day mortality. In the restraint group, advanced age, chronic use of diuretics and the use of dialysis during ICU admission were associated with increased mortality risk.

CONCLUSIONS

Restrained patients tended to have higher morbidity and mortality during ICU and hospital stays, as well as a greater tendency for agitation events and more severe agitation scores, with an increased need for in-hospital anti-psychotic treatment. These findings regarding patient characteristics might be used to formulate treatment plans to reduce the rate of physical restraint in the ICU.

RELEVANCE TO CLINICAL PRACTICE

Because restrained ICU patients tend to have higher morbidity and mortality, treatment plans should be formulated to reduce the rate of physical restraint in the ICU.

CLINICAL TRIAL REGISTRATION

NCT04771793.

Prevalence and risk factors of the use of physical restraint and impact of a decision support tool: A before-and-after study

BACKGROUND

Physical restraint is frequently used in intensive care units to prevent patients' life-threatening removal of indwelling devices. In France, their use is poorly studied. Therefore, to evaluate the need for physical restraint, we have designed and implemented a decision support tool.

AIMS

Besides describing the prevalence of physical restraint use, this study aimed to assess whether the implementation of a nursing decision support tool had an impact on restraint use and to identify the factors associated with this use.

STUDY DESIGN

A large observational, multicentre study with a repeated one-day point prevalence design was conducted. All adult patients hospitalized in intensive care units were eligible for this study. Two study periods were planned: before (control period) and after (intervention period) the deployment of the decision support tool and staff training. A multilevel model was performed to consider the centre effect.

RESULTS

During the control period, 786 patients were included, and 510 were in the intervention period. The prevalence of physical restraint was 28% (95% CI: 25.1%-31.4%) and 25% (95% CI: 21.5%-29.1%) respectively (χ2 = 1.35; p = .24). Restraint was applied by the nurse and/or nurse assistant in 96% of cases in both periods, mainly to wrists (89% vs. 83%, p = .14). The patient-to-nurse ratio was significantly lower in the intervention period (1:3.0 ± 1 vs. 1:2.7 ± 0.7, p < .001). In multivariable analysis, mechanical ventilation was associated with physical restraint (aOR [95% CI] = 6.0 [3.5-10.2]).

CONCLUSION

The prevalence of physical restraint use in France was lower than expected. In our study, the decision support tool did not substantially impact physical restraint use. Hence, the decision support tool would deserve to be assessed in a randomized controlled trial.

RELEVANCE TO CLINICAL PRACTICE

The decision to physically restrain a patient could be protocolised and managed by critical care nurses. A regular evaluation of the level of sedation could allow the most deeply sedated patients to be exempted from physical restraint.

Associations Between Oversedation and Agitation in Postanesthesia Recovery Room and Subsequent Severe Behavioral Emergencies

OBJECTIVES

Hospital-based behavioral emergency response teams (BERT) respond to acute behavioral disturbances among hospitalized patients. We aimed to examine associations between altered mental status in postanesthesia care unit (PACU) and behavioral disturbances on surgical wards requiring BERT activation.

METHODS

Electronic medical records of patients who underwent general anesthesia and were admitted to the PACU between May 2018-December 2020 were reviewed for episodes of BERT activations on surgical wards. Characteristics of BERT patients were compared with the rest of surgical population during the same period to examine risk factors for BERT.

RESULTS

Of 56,275 adult surgical patients, 133 patients had 178 BERT activations (incidence 2.4, 95% confidence interval [CI] 2.0-2.8 per 1000 admissions), with 21 being for physical assault. The risk for BERT activation was increased with each decade over age of 50 as well as younger age (30 versus 50 y), male sex (odds ratio [OR] = 2.48, 95% CI 1.69, 3.62), longer procedures (OR = 1.08 per 30 minutes, 95% CI 1.05, 1.11), and alterations in mental status in PACU, with both moderate/deep sedation (OR = 1.63, 95% CI 1.04, 2.57) and agitation/combative state (OR = 8.47, 95% CI 5.13, 14.01), P < 0.001 for all comparisons.

CONCLUSIONS

Early postoperative agitation and oversedation are associated with BERT activation on surgical wards. Altered mental status in PACU should be conveyed to accepting hospital units so healthcare staff can be vigilant for the potential development of behavioral disturbances.

Volatile Sedation in Neurointensive Care Patients After Aneurysmal Subarachnoid Hemorrhage: Effects on Delayed Cerebral Ischemia, Cerebral Vasospasm, and Functional Outcome

BACKGROUND

Volatile anesthetics have shown neuroprotective effects in preclinical studies, but clinical data on their use after aneurysmal subarachnoid hemorrhage (aSAH) are limited. This study aimed to analyze whether the use of volatile anesthetics for neurocritical care sedation affects the incidence of delayed cerebral ischemia (DCI), cerebral vasospasm (CVS), DCI-related infarction, or functional outcome.

METHODS

Data were retrospectively collected for ventilated aSAH patients (2016-2022), who received sedation for at least 180 hours. For comparative analysis, patients were assigned to a control and a study group according to the sedation used (intravenous vs. volatile sedation). Logistic regression analysis was performed to identify independent predictors of DCI, CVS, DCI-related infarction, and functional outcome.

RESULTS

Ninety-nine patients with a median age of 58 years (interquartile range: 52-65 years) were included. Forty-seven patients (47%) received intravenous sedation, while 52 patients (53%) received (additional) volatile sedation with isoflurane (n = 30, 58%) or sevoflurane (n = 22, 42%) for a median duration of 169 hours (range: 5-298 hours). There were no significant differences between the 2 groups regarding the occurrence of DCI, angiographic CVS, DCI-related infarction, or functional outcome. In a multivariable logistic regression analysis, the use of volatile anesthetics had no impact on the incidence of DCI-related infarction or the patients' functional outcome.

CONCLUSIONS

Volatile sedation in aSAH patients is not associated with the incidence of DCI, CVS, DCI-related infarction, or functional outcome. Although we could not demonstrate neuroprotective effects of volatile anesthetics, our results suggest that volatile sedation after aSAH has no negative effect on the patient's outcome.

Prognostic Factors and Incidence for Postictal Agitation After Electroconvulsive Therapy: A Systematic Review and Meta-analysis

ABSTRACT

Postictal agitation (PIA) is an adverse effect of electroconvulsive therapy (ECT) and is known to predict other side effects of ECT, but inconsistencies in the literature remain regarding PIA prognostic factors and incidence. Therefore, a systematic review and meta-analysis were conducted (1) to identify prognostic factors for PIA following ECT and (2) to elucidate the diverse incidences of PIA following ECT based on demographic and clinical characteristics. Specifically, electronic databases were searched for retrospective observational studies and randomized controlled trials (RCTs) that objectively reported PIA incidence. Additional inclusion criteria encompassed studies involving patients 18 years or older and allowed for the extraction of PIA prognostic factors. This resulted in the inclusion of 21 articles with 66,047 patients in total. A total of 35 prognostic factors were identified for PIA after ECT, consisting of 8 anesthesia-related, 19 patient-related, and 8 ECT-related prognostic factors. A meta-analysis was conducted for 7 prognostic factors. None of the prognostic factors demonstrated a significant effect on reducing or increasing PIA incidence. Mean PIA was 13.9% (18.0% adjusted) at the patient level and 12.4% (16.5% adjusted) at the session level. Overall risk of bias was generally moderate to low, except in the outcome measurement domain, where 43% of the studies had a high risk of bias. Although none of the prognostic factors in meta-analysis were significant, several other prognostic factors consistently indicated increased or decreased risk, providing direction for future research. A scarcity of (high-quality) data emphasizes the need for additional research on this topic to be conducted.

Dexmedetomidine administration is associated with improved outcomes in critically ill patients with acute myocardial infarction partly through its anti-inflammatory activity

Background

Dexmedetomidine (DEX) is a commonly used sedative in the intensive care unit and has demonstrated cardioprotective properties against ischemia-reperfusion injury in preclinical studies. However, the protective effects of early treatment of DEX in patients with acute myocardial infarction (AMI) and its underlying mechanism are still not fully understood. This study aims to investigate the association between early DEX treatment and in-hospital mortality in patients with AMI, and to explore the potential mediating role of white blood cell (WBC) reduction in this relationship.

Methods

A retrospective cohort analysis was conducted using the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. Patients with AMI were divided into the DEX and non-DEX group, based on whether they received DEX treatment in the early stage of hospitalization. The primary outcome measured was in-hospital mortality. The study evaluated the association between DEX use and in-hospital mortality using the Kaplan-Meier (KM) method and Cox proportional hazards model. Additionally, 1:1 propensity score matching (PSM) was conducted to validate the results. Furthermore, causal mediation analysis (CMA) was utilized to explore potential causal pathways mediated by WBC reduction between early DEX use and the primary outcome.

Results

This study analyzed data from 2,781 patients, with 355 in the DEX group and 2,426 in the non-DEX group. KM survival analysis revealed a significantly lower in-hospital mortality rate in the DEX group compared to the non-DEX group. After adjusting for multiple confounding factors, the Cox regression model demonstrated a significant positive impact of DEX on the risk of in-hospital mortality in patients with AMI, with hazard ratios (HR) of 0.50 (95% confidence interval (CI): 0.35-0.71, p < 0.0001). PSM analysis confirmed these results, showing HR of 0.49 (95% CI: 0.31-0.77, p = 0.0022). Additionally, CMA indicated that 13.7% (95% CI: 1.8%-46.9%, p = 0.022) of the beneficial effect of DEX on reducing in-hospital mortality in patients with AMI was mediated by the reduction in WBC.

Conclusion

The treatment of DEX was associated with a lower risk of in-hospital mortality in patients with AMI, potentially due to its anti-inflammatory properties.

Electroencephalography as a tool for assessing delirium in hospitalized patients: A single-center tertiary hospital experience

Background

Delirium is a prevalent yet underdiagnosed disorder characterized by acute cognitive impairment. Various screening tools are available, including the Confusion Assessment Method (CAM) and 4 A's test (4AT). However, the results of these assessments may vary among raters. Therefore, we investigated the objective use of electroencephalography (EEG) in delirium and its clinical associations and predictive value.

Method

This cross-sectional observational study was conducted at Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan, Malaysia, from April 2021 to April 2023. This study included patients aged ≥18 years with a preliminary diagnosis of delirium. Demographic and clinical data were collected along with EEG recordings evaluated by certified neurologists to classify abnormalities and compare the associated factors between patients with delirium with or without EEG abnormalities.

Results

One hundred and twenty patients were recruited, with 80.0% displaying EEG abnormalities, mostly generalized slowing (moderate to severe) and primarily generalized slowing (mild to severe), and were characterized by theta activity. Age was significantly associated with EEG abnormalities, with patients aged 75 and older demonstrating the highest incidence (88.2%). The CAM scores were strongly correlated with EEG abnormalities (r = 0.639, P < 0.001) and was a predictor of EEG abnormalities (P < 0.012), indicating that EEG can complement clinical assessments for delirium. The Richmond Agitation and Sedation Scale (RASS) scores (r = -0.452, P < 0.001) and Barthel index (BI) (r = -0.582, P < 0.001) were negatively correlated with EEG abnormalities. Additionally, a longer hospitalization duration was associated with EEG abnormalities (r = 0.250, P = 0.006) and emerged as a predictor of such changes (P = 0.030).

Conclusion

EEG abnormalities are prevalent in patients with delirium, particularly in elderly patients. CAM scores and the duration of hospitalization are valuable predictors of EEG abnormalities. EEG can be an objective tool for enhancing delirium diagnosis and prognosis, thereby facilitating timely interventions.

Augmentative and Alternative Communication Interventions in Critical and Acute Care With Mechanically Ventilated and Tracheostomy Patients: A Scoping Review

PURPOSE

Communication with nonspeaking patients is a critical challenge of person-centered care. This scoping review aimed to map the literature on augmentative and alternative communication (AAC) interventions for nonspeaking mechanically ventilated and tracheostomy patients in critical and acute care settings.

METHOD

Electronic database, ancestry, and forward citation searches were conducted using eligibility criteria established a priori. Data were extracted, synthesized, and summarized according to scoping review methodology. Studies were categorized by type of intervention and summarized in terms of purpose, participants, design, quality appraisal (including validity and reliability of selected efficacy measures), and efficacy.

RESULTS

Small-to-large treatment effect sizes indicated demonstrable impact on patient health and communication efficacy with high-tech and no-tech visual interface-based interventions and systematic nurse training interventions. Treatment effects primarily pertained to dependent variables of patient anxiety, communication satisfaction, comfort, symptom self-reporting, and nursing practice changes.

CONCLUSIONS

There is a paucity of high-quality AAC intervention research for mechanically ventilated and tracheostomy patients in critical and acute care settings. Emergent evidence suggests that select visual interface and nurse training interventions can impact efficacy of patient-provider communication and patients' overall health.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.26506102.

The Chinese Mandarin COMHON Index and Braden Scale to assess pressure injury risk in intensive care: An inter-rater reliability and convergent validity study

BACKGROUND

The COMHON Index is an intensive-care-specific pressure injury risk assessment tool, which has demonstrated promising psychometric properties. It has been translated into Chinese Mandarin but requires inter-rater reliability testing and comparison to the standard care instrument (Braden Scale) before clinical use.

OBJECTIVES

This study aimed to test and compare the inter-rater reliability and convergent validity of the Chinese Mandarin versions of the COMHON Index and Braden Scale.

METHODS

The study was conducted in a Chinese comprehensive intensive care unit. Based on a sample size calculation, five registered nurse raters with at least 6-months experience independently conducted risk assessments for 20 adult patients using both the COMHON Index and Braden Scale. Intraclass correlations (ICC) for inter-rater reliability, standard errors of measurement (SEM), and minimally detectable change (MDC) were calculated. Convergent validity was assessed using Pearson Product Moment Correlation for sum scores and Spearman's rho for subscales.

RESULTS

Inter-rater reliability of COMHON Index and Braden Scale sum scores was very high (ICC [1,1] = 0.973; [95% confidence interval 0.949-0.988]; SEM 0.54; MDC 1.50) and high (ICC [1,1] = 0.891; [95% confidence interval 0.793-0.951]; SEM 0.93; MDC 2.57), respectively. All COMHON-Index subscales demonstrated ICC values >0.6, whereas two Braden Scale subscales (Mobility, Activity) were below this threshold. Instrument sum scores were strongly correlated (Pearson's r = -0.76 [r2 = 0.58]; p < 0.001), as were three subscale item pairs (mobility rs= -0.56 [r2 = 0.32]; nutrition rs= -0.63 [r2 = 0.39]; level of consciousness/sensory perception rs= -0.67 [r2 = 0.45] p < 0.001).

CONCLUSION

Both the COMHON Index and Braden Scale demonstrated high levels of inter-rater reliability and measured similar constructs. However, the COMHON Index demonstrated superior inter-rater reliability and the results suggest that it better detects changes in patient condition and subsequently pressure injury risk. Further testing is recommended.

Delirium: Where Are We Now?

Delirium has long been recognized within the adult intensive care world, but it is only within the past decade that its presence and prevalence in the context of pediatric intensive care has been studied. There is now a greater understanding of risk factors for delirium, a better selection of methods to recognize it, and treatment specifically directed to pediatric patients. An understanding of delirium is also relevant to pediatricians practicing outside of the intensive care unit, as delirium can present in other care environments, where it remains under-recognized. The purpose of this article is to review pediatric delirium by discussing its pathophysiology, the tools available to screen patients, and current prevention and management approaches. [Pediatr Ann. 2024;53(8):e288-e292.].

Comparison of inpatient and outpatient palliative sedation practice - A prospective observational study

INTRODUCTION

Palliative sedation (PS) is an intrusive measure to relieve patients at the end of their life from otherwise untreatable symptoms. Intensive discussion of the advantages and limitations of palliative care with the patients and their relatives should precede the initiation of PS since PS is terminated by the patient's death in most cases. Drugs for PS are usually administered intravenously. Midazolam is widely used, either alone or in combination with other substances. PS can be conducted in both inpatient and outpatient settings; however, a quality analysis comparing both modalities was missing so far.

PATIENTS AND METHODS

This prospective observational study collected data from patients undergoing PS inpatient at the palliative care unit (PCU, n = 26) or outpatient at a hospice (n = 2) or at home (specialized outpatient palliative care [SAPV], n = 31) between July 2017 and June 2018. Demographical data, indications for PS, and drug protocols were analyzed. The depth of sedation according to the Richmond Agitation Sedation Scale (RASS) and the degree of satisfaction of staff members and patient's relatives were included as parameters for quality assessment.

RESULTS

Patients undergoing PS at the PCU were slightly younger compared to outpatients (hospice and SAPV combined). Most patients suffered from malignant diseases, and midazolam was the backbone of sedation for inpatients and outpatients. The median depth of sedation was between +1 and -3 according to the RASS with a trend to deeper sedation prior to death. The median degree of satisfaction was "good," scored by staff members and by patient's relatives. Significant differences between inpatients and outpatients were not seen in protocols, depth of sedation, and degree of satisfaction.

CONCLUSION

The data support the thesis that PS is possible for inpatients and outpatients with comparable results. For choosing the best place for PS, other aspects such as patient's and relative's wishes, stress, and medical reasons should be considered.

Effects of intraoperative low-dose esketamine on postoperative pain after vestibular schwannoma resection: A prospective randomized, double-blind, placebo-controlled study

AIMS

Esketamine may reduce acute postoperative pain in several settings. However, the effects of low-dose esketamine on postoperative pain after vestibular schwannoma (VS) resection with propofol/remifentanil total intravenous anaesthesia (TIVA) are unclear. The aim of this study is to observe the effects of intraoperative low-dose esketamine on postoperative pain after vestibular schwannoma resection.

METHODS

This single-centre, randomized, placebo-controlled, double-blind trial included 90 adults undergoing VS resection via the retrosigmoid approach with TIVA. The patients were randomly allocated to two groups: esketamine or control (n = 45 in each group). Patients received low-dose esketamine (0.2 mg/kg) or a similar volume of normal saline after dural closure. The primary outcome was the pain score during movement (gentle head movement) at 24 h postoperatively. Secondary outcomes included recovery time, bispectral index (BIS) values and haemodynamic profiles during the first 30 min after esketamine administration, and adverse effects.

RESULTS

Low-dose esketamine did not reduce pain scores at rest (P > .05) or with movement (P > .05) within the first 24 h after surgery. Esketamine moderately increased BIS values for at least 30 min after administration (P < .0001) but did not affect heart rate (P = .992) or mean arterial blood pressure (P = .994). Esketamine prolonged extubation time (P = .042, 95% confidence interval: 0.08 to 4.42) and decreased the effect-site concentration of remifentanil at extubation (P = .001, 95% confidence interval: -0.53 to -0.15) but did not affect the time to resumption of spatial orientation. Postoperative nausea and vomiting rates did not differ between groups, and no hallucinations or excessive sedation was observed.

CONCLUSION

Intraoperative low-dose esketamine did not significantly reduce acute pain after VS resection with propofol/remifentanil TIVA. However, BIS values increased for at least 30 min after esketamine administration.

Why fexofenadine is considered as a truly non-sedating antihistamine with no brain penetration: a systematic review

OBJECTIVE

Fexofenadine is a second-generation inverse agonist of H1-receptor of histamine which is highly selective with proven efficacy in relieving symptoms associated with allergic conditions. It has an additional benefit of not penetrating the blood-brain barrier and therefore do not induce sedation and not impair the cognitive function/psychomotor performance. This review aimed at providing evidence based on available controlled studies to reinforce the non-sedative property of fexofenadine for treating patients with allergic rhinitis and urticaria.

METHODS

We performed an electronic literature search using keywords such as fexofenadine, drowsiness, somnolence, sedation, fatigue, cognitive, impairment, psychomotor, driving performances, sleep, rapid eye movement, alertness, clinical study, in vitro study, in vivo study, and pharmacodynamics in the Embase search engine. The review included randomized controlled trials, review articles, systematic reviews, and meta-analyses, together with post-marketing analysis conducted in healthy subjects and patients with allergy and were focused on comparing the antihistaminic potential or safety of fexofenadine with other antihistamines or placebo.

RESULTS

Positron emission tomography (PET) and proportional impairment ratio (PIR) data along with other objective tests from various studies confirmed the non-sedative property of fexofenadine. Results of brain H1-receptor occupancy (H1RO) obtained from PET showed no H1RO by fexofenadine, the receptor which is known to cause sedation of H1 antihistamines. Most studies calculating PIR value as 0 showed fexofenadine to be a non-impairing oral antihistamine regardless of dose. Clinical trials in adults and children showed fexofenadine to be well tolerated without sedative effect or impairment of cognitive/psychomotor function even at higher than recommended doses.

CONCLUSION

Published literature based on various parameters and clinical trials conducted for evaluating the effect of fexofenadine on sedation and central nervous system shows fexofenadine is both clinically effective and non-sedating.

Pragmatic approach to mobilizing individuals with critical illness due to COVID-19: clinical perspective

PURPOSE

To provide pragmatic guidance for acute rehabilitation management and implementation of early mobility for individuals with critical illness due to COVID-19.

METHODS

Clinical perspective developed through reflective clinical practice and narrative review of best available evidence.

RESULTS

Current clinical practice guidelines do not provide guidance for implementation of early mobility interventions for individuals with critical illness due to COVID-19 who require enhanced ventilatory support or support of inhaled pulmonary artery vasodilators. Many individuals who may benefit from implementation of early mobility interventions are excluded by strict interpretation of current guidelines.

CONCLUSIONS

Risk vs benefit of implementing early mobility interventions in individuals with critical illness due to COVID-19 can be mitigated through coordinated efforts of interdisciplinary teams to promote shared decision-making through therapeutic alliances with patients and their families. Clinicians must clearly define the goals of care, understand the limitations of monitoring equipment in the intensive care unit, prepare to titrate levels of oxygen based on an individual's physiologic response to mobility interventions, and help individuals maintain external goal-directed focus of attention to optimize outcomes of early mobility interventions.