Outcomes In Intensive Care Unit Patients Research Articles

Effects of fentanyl administration in mechanically ventilated patients in the intensive care unit: a systematic review and meta-analysis

BackgroundFentanyl is selected to manage pain in critical care patients on mechanical ventilation in the intensive care unit (ICU). However, the usefulness of fentanyl compared with other opioids is unknown. This study examined the evidence for using fentanyl to improve the clinical outcomes of ICU patients, using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system.MethodsWe searched the MEDLINE, Cochrane Central Register of Controlled Trials, and Igaku Chuo Zasshi databases in June 2021. Two independent assessors reviewed studies to identify randomized, controlled trials (RCTs) that compared the intravenous administration of fentanyl and other opioids in mechanically ventilated patients in the ICU. The study quality was assessed using the GRADE system and Cochrane methodology. The primary outcome was mortality. The secondary outcomes were the duration of mechanical ventilation, duration of the ICU stay, incidence of severe adverse events, and incidence of delirium. We integrated outcome data using a random-effects model and showed absolute values and certainty of evidence in the GRADE evidence profile.ResultsSeven RCTs met the study inclusion criteria with 534 patients (251 were treated with fentanyl and 283 with other opioids, including 242 with remifentanil and 41 with morphine). Among 191 participants from 2 RCTs, fentanyl was not associated with mortality (risk ratio [RR], 0.79; 95% confidence interval [CI], 0.24 to 2.60; low-quality evidence). Regarding the secondary outcomes, fentanyl did not shorten the duration of mechanical ventilation (mean difference, 0.49 h; 95% CI, − 0.90 to 1.88; moderate-quality evidence) or the duration of the ICU stay (mean difference, 7.04 h; 95% CI, − 3.27 to 17.35; moderate-quality evidence) compared with other opioids. Fentanyl did not increase the incidence of severe adverse events (RR, 0.98; 95% CI, 0.50 to 1.90; low-quality evidence) or delirium (RR, 1.27; 95% CI, 0.79 to 2.04; low-quality evidence).ConclusionsAlthough fentanyl is a frequently administered opioid in the ICU, patients’ outcomes are not different between fentanyl use and use of other opioids. However, the GRADE evaluation provides little certainty to support the results of this systematic review. Therefore, further large RCTs are required to confirm our conclusions.Trial registrationPROSPERO, CRD42019130648 (https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=130648).

DEVELOPMENT AND VALIDATION OF A CLINICAL DECISION-SUPPORT TOOL FOR PREDICTION OF WEANING OUTCOME ON ADMISSION TO THE ICU

DEVELOPMENT AND VALIDATION OF A CLINICAL DECISION-SUPPORT TOOL FOR PREDICTION OF WEANING OUTCOME ON ADMISSION TO THE ICU

Anticoagulation Prescribing Patterns in Intensive Care Unit Patients Admitted with Prehospital Direct Oral Anticoagulant Therapy: A Single Academic Center Experience.

To describe the current prescribing practices of direct oral anticoagulants (DOACs) in intensive care unit (ICU) patients and the associated clinical outcomes, including the incidence of major bleeding episodes and the need for intervention (endoscopic, surgical, or interventional radiology guided). Observational, retrospective chart review. Single large academic center study. Participants included patients with critical illness who were admitted to the intensive care units (ICU) at Mayo Clinic from January 1st, 2012, until May 4th, 2018. Adult ICU patients with a DOAC (apixaban, rivaroxaban, dabigatran, or edoxaban) listed as one of the active medications at the time of hospital admission were included. 37 249 patients in medical and surgical intensive care units were screened for the study period. After excluding patients who did not qualify, 558 unique encounters were included. The median age was 69 (IQR 59-78) years; most patients were male, white Caucasians, and had a median SOFA score of 4. After excluding the patients who had major bleeding episodes in the first 24 hours, 188 (39%) were continued on the same DOAC therapy, 204 (42%) were discontinued without transitioning to another agent, and 95 (20%) were transitioned to another agent. Finally, 410 (84%) were dismissed on DOAC therapy at the end of hospitalization. The difference in the continuation rate of the same DOAC agent beyond 24 hours, discontinuation without transition to an alternate agent, or discontinuation of DOAC with a transition to an alternate anticoagulation agent was not statistically significant (P = .60). A total of 52 major bleeding events were identified. Gastrointestinal bleeding was the most common bleeding complication [n (%): 34 (65)], followed by intra-abdominal and peri-procedural bleeding [7 (13.5) and 7 (13.5)]. Thirty-three (65%) patients had a major bleeding complication requiring intervention. Our single-center retrospective study describes the current prescribing practices and preliminary outcomes in ICU patients with prehospital use of DOACs. Up to 20% of the patients were transitioned to a different agent within 24 hours of ICU admission, whereas a significant proportion of patients (42%) had anticoagulation discontinued altogether. Most patients who suffered a major bleeding episode required either endoscopic or surgical intervention to control bleeding.

Caring for COVID-19 patients through a pandemic in the intensive care setting: A narrative review.

Since the declaration of the novel SARS‐CoV‐2 virus pandemic, health systems/ health‐care‐workers globally have been overwhelmed by a vast number of COVID‐19 related hospitalizations and intensive care unit (ICU) admissions. During the early stages of the pandemic, the lack of formalized evidence‐based guidelines in all aspects of patient management was a significant challenge. Coupled with a lack of effective pharmacotherapies resulted in unsatisfactory outcomes in ICU patients. The anticipated increment in ICU surge capacity was staggering, with almost every ICU worldwide being advised to increase their capacity to allow adequate care provision in response to multiple waves of the pandemic. This increase in surge capacity required advanced planning and reassessments at every stage, taking advantage of experienced gained in combination with emerging evidence. In University Hospital Southampton General Intensive Care Unit (GICU), despite the initial lack of national and international guidance, we enhanced our ICU capacity and developed local guidance on all aspects of care to address the rapid demand from the increasing COVID‐19 admissions. The main element of this success was a multidisciplinary team approach intertwined with equipment and infrastructural reorganization. This narrative review provides an insight into the approach adopted by our center to manage patients with COVID‐19 critical illness, exploring the initial planning process, including contingency preparations to accommodate (360% capacity increment) and adaptation of our management pathways as more evidence emerged throughout the pandemic to provide the most appropriate levels of care to our patients. We hope our experience will benefit other intensive care units worldwide.This article is categorized under:Infectious Diseases > Genetics/Genomics/Epigenetics

Glasgow coma scale score and albumin level are associated with patient survival after emergent colonoscopy in the intensive care unit

AbstractDue to poor patient condition and the high risk associated with the procedure, colonoscopy is rarely performed in the intensive care unit (ICU). It is indicated for ICU patients with suspected ischemic colitis, decompression of colonic distension, or lower gastrointestinal hemorrhage. ICU patients usually have more co‐morbidities and higher mortality rates than other inpatient patients. Data in the literature regarding the outcomes of ICU patients after colonoscopy are limited. The aim of this study was to identify factors that are predictive of outcomes following colonoscopy in ICU patients. We retrospectively analyzed the medical records and imaging findings of patients who underwent colonoscopy in an ICU setting between January 2018 and June 2020. A total of 79 patients were identified and enrolled for analysis. The median age of the patients was 78 years. The colonoscopy findings included angiodysplasia (n = 3, 3.8%), colitis (n = 17, 21.5%), colonic ulcer (n = 2, 2.5%), diverticulosis (n = 3, 3.8%), hemorrhoid (n = 10, 12.7%), rectal ulcer (n = 16, 20.3%), tumor (n = 10, 12.7%), volvulus (n = 1, 1.3%), bleeding of unknown origin (n = 4, 5.1%), and no diagnosis (n = 13, 16.5%). A total of 46 patients (58%) survived to discharge. Patients who survived had statistically significantly higher Glasgow coma scale (GCS) scores (P = .009) and albumin levels (P = .002) than patients who did not survive. Patient survival is associated with GCS score and albumin level, but not with colonoscopy findings.

A retrospective cohort study of short-stay admissions to the medical intensive care unit: Defining patient characteristics and critical care resource utilization.

Little is known about the mortality and utilization outcomes of short-stay intensive care unit (ICU) patients who require <24 h of critical care. We aimed to define characteristics and outcomes of short-stay ICU patients whose need for ICU level-of-care is ≤24 h compared to nonshort-stay patients. Single-center retrospective cohort study of patients admitted to the medical ICU at an academic tertiary care center in 2019. Fisher's exact test or Chi-square for descriptive categorical variables, t-test for continuous variables, and Mann-Whitney two-sample test for length of stay (LOS) outcomes. Of 819 patients, 206 (25.2%) were short-stay compared to 613 (74.8%) nonshort-stay. The severity of illness as measured by the Mortality Probability Model-III was significantly lower among short-stay compared to nonshort-stay patients (P = 0.0001). Most short-stay patients were admitted for hemodynamic monitoring not requiring vasoactive medications (77, 37.4%). Thirty-six (17.5%) of the short-stay cohort met Society of Critical Care Medicine's guidelines for ICU admission. Nonfull-ICU LOS, or time spent waiting for transfer out to a non-ICU bed, was similar between the two groups. Hospital mortality was lower among short-stay patients compared to nonshort-stay patients (P = 0.01). Despite their lower illness severity and fewer ICU-level care needs, short-stay patients spend an equally substantial amount of time occupying an ICU bed while waiting for a floor bed as nonshort-stay patients. Further investigation into the factors influencing ICU triage of these subacute patients and contributors to system inefficiencies prohibiting their timely transfer may improve ICU resource allocation, hospital throughput, and patient outcomes.

Cell-Free DNA as Biomarker for Sepsis by Integration of Microbial and Host Information.

Cell-free DNA (cfDNA) is emerging as a biomarker for sepsis. Previous studies have been focused mainly on identifying blood infections or simply quantifying cfDNA. We propose that by characterizing multifaceted unexplored components, cfDNA could be more informative for assessing this complex syndrome. We explored multiple aspects of cfDNA in septic and nonseptic intensive care unit (ICU) patients by metagenomic sequencing, with longitudinal measurement and integrative assessment of plasma cfDNA quantity, human cfDNA fragmentation patterns, infecting pathogens, and overall microbial composition. Septic patients had significantly increased cfDNA quantity and altered human cfDNA fragmentation pattern. Moreover, human cfDNA fragments appeared to comprise information about cellular oxidative stress and could indicate disease severity. Metagenomic sequencing was more sensitive than blood culture in detecting bacterial infections and allowed for simultaneous detection of viral pathogens. We found differences in microbial composition between septic and nonseptic patients and between survivors and nonsurvivors by 28-day mortality, both on the first day of ICU admission and across the study period. By integrating all the information into a machine learning model, we achieved improved performance in identifying sepsis and prediction of clinical outcome for ICU patients with areas under the curve of 0.992 (95% CI 0.969-1.000) and 0.802 (95% CI 0.605-0.999), respectively. We were able to diagnose sepsis and predict mortality as soon as the first day of ICU admission by integrating multifaceted cfDNA information obtained in a single metagenomic assay; this approach could provide important advantages for clinical management and for improving outcomes in ICU patients.

Associations Between Family Member Involvement and Outcomes of Patients Admitted to the Intensive Care Unit: Retrospective Cohort Study

BackgroundLittle is known about family member involvement, by relationship status, for patients treated in the intensive care unit (ICU).ObjectiveUsing documentation of family interactions in clinical notes, we examined associations between child and spousal involvement and ICU patient outcomes, including goals of care conversations (GOCCs), limitations in life-sustaining therapy (LLST), and 3-month mortality.MethodsUsing a retrospective cohort design, the study included a total of 858 adult patients treated between 2008 and 2012 in the medical ICU at a tertiary care center in northeastern United States. Clinical notes generated within the first 48 hours of admission to the ICU were used with standard machine learning methods to predict patient outcomes. We used natural language processing methods to identify family-related documentation and abstracted sociodemographic and clinical characteristics of the patients from the medical record.ResultsMost of the 858 patients were White (n=650, 75.8%); 437 (50.9%) were male, 479 (55.8%) were married, and the median age was 68.4 (IQR 56.5-79.4) years. Most patients had documented GOCC (n=651, 75.9%). In adjusted regression analyses, child involvement (odds ratio [OR] 0.81; 95% CI 0.49-1.34; P=.41) and child plus spouse involvement (OR 1.28; 95% CI 0.8-2.03; P=.3) were not associated with GOCCs compared to spouse involvement. Child involvement was not associated with LLST when compared to spouse involvement (OR 1.49; 95% CI 0.89-2.52; P=.13). However, child plus spouse involvement was associated with LLST (OR 1.6; 95% CI 1.02-2.52; P=.04). Compared to spouse involvement, there were no significant differences in the 3-month mortality by family member type, including child plus spouse involvement (OR 1.38; 95% CI 0.91-2.09; P=.13) and child involvement (OR 1.47; 95% CI 0.9-2.41; P=.12).ConclusionsOur findings demonstrate that statistical models derived from text analysis in the first 48 hours of ICU admission can predict patient outcomes. Early child plus spouse involvement was associated with LLST, suggesting that decisions about LLST were more likely to occur when the child and spouse were both involved compared to the involvement of only the spouse. More research is needed to further understand the involvement of different family members in ICU care and its association with patient outcomes.

Impact of indirect bilirubin and uric acid on outcomes of sepsis-associated acute kidney injury (sAKI).

Acute kidney injury (AKI) is one of the most frequent pathophysiologic disorders encountered in hospitalized patients, with sepsis frequently implicated in pathogenesis. Reactive oxygen species (ROS) seem to have a significant contribution to sepsis-induced AKI. Proposed mechanisms include induction of cell membrane lipid peroxidation, protein denaturing, and direct DNA damage, all of which have deleterious effect. These changes constitute oxidative injury to the kidneys. To evaluate the antioxidant actions of indirect bilirubin and uric acid on outcomes of sepsis-associated AKI. Ninety-eight patients admitted to the intensive care unit (ICU), at a large tertiary center, with sepsis and AKI were evaluated for serum levels of uric acid, bilirubin (primarily indirect), and procalcitonin. The primary endpoints studied were the need for hemodialysis and death. Thirty-two (33%) patients developed AKI requiring hemodialysis (HD). These patients had higher SOFA scores (p < 0.001) and lower levels of indirect bilirubin (p < 0.001) compared to those not requiring HD. There was no statistically significant difference in serum uric acid levels. Logistic regression analysis identified creatinine level, total and indirect bilirubin levels, and leukocyte count as significant predictors of patient death. Higher leukocyte counts and creatinine levels were independently associated with poor outcomes in ICU patients with sepsis. Additionally, lower indirect bilirubin levels were also noted to be associated with similar outcomes. The latter provides insights into oxidative stress as a major player in the pathogenesis of sepsis-induced AKI, with a potential protective role of indirect bilirubin.

Cytomegalovirus blood reactivation in COVID-19 critically ill patients: risk factors and impact on mortality.

PurposeCytomegalovirus (CMV) reactivation in immunocompetent critically ill patients is common and relates to a worsening outcome. In this large observational study, we evaluated the incidence and the risk factors associated with CMV reactivation and its effects on mortality in a large cohort of patients affected by coronavirus disease 2019 (COVID-19) admitted to the intensive care unit (ICU).MethodsConsecutive patients with confirmed SARS-CoV-2 infection and acute respiratory distress syndrome admitted to three ICUs from February 2020 to July 2021 were included. The patients were screened at ICU admission and once or twice per week for quantitative CMV-DNAemia in the blood. The risk factors associated with CMV blood reactivation and its association with mortality were estimated by adjusted Cox proportional hazards regression models.ResultsCMV blood reactivation was observed in 88 patients (20.4%) of the 431 patients studied. Simplified Acute Physiology Score (SAPS) II score (HR 1031, 95% CI 1010–1053, p = 0.006), platelet count (HR 0.0996, 95% CI 0.993–0.999, p = 0.004), invasive mechanical ventilation (HR 2611, 95% CI 1223–5571, p = 0.013) and secondary bacterial infection (HR 5041; 95% CI 2852–8911, p < 0.0001) during ICU stay were related to CMV reactivation. Hospital mortality was higher in patients with (67.0%) than in patients without (24.5%) CMV reactivation but the adjusted analysis did not confirm this association (HR 1141, 95% CI 0.757–1721, p = 0.528).ConclusionThe severity of illness and the occurrence of secondary bacterial infections were associated with an increased risk of CMV blood reactivation, which, however, does not seem to influence the outcome of COVID-19 ICU patients independently.Supplementary InformationThe online version contains supplementary material available at 10.1007/s00134-022-06716-y.

Impact of prolonged requirement for insulin on 90-day mortality in critically ill patients without previous diabetic treatments: a post hoc analysis of the CONTROLING randomized control trial

BackgroundStress hyperglycemia can persist during an intensive care unit (ICU) stay and result in prolonged requirement for insulin (PRI). The impact of PRI on ICU patient outcomes is not known. We evaluated the relationship between PRI and Day 90 mortality in ICU patients without previous diabetic treatments.MethodsThis is a post hoc analysis of the CONTROLING trial, involving 12 French ICUs. Patients in the personalized glucose control arm with an ICU length of stay ≥ 5 days and who had never previously received diabetic treatments (oral drugs or insulin) were included. Personalized blood glucose targets were estimated on their preadmission usual glycemia as estimated by their glycated A1c hemoglobin (HbA1C). PRI was defined by insulin requirement. The relationship between PRI on Day 5 and 90-day mortality was assessed by Cox survival models with inverse probability of treatment weighting (IPTW). Glycemic control was defined as at least one blood glucose value below the blood glucose target value on Day 5.ResultsA total of 476 patients were included, of whom 62.4% were male, with a median age of 66 (54–76) years. Median values for SAPS II and HbA1C were 50 (37.5–64) and 5.7 (5.4–6.1)%, respectively. PRI was observed in 364/476 (72.5%) patients on Day 5. 90-day mortality was 23.1% in the whole cohort, 25.3% in the PRI group and 16.1% in the non-PRI group (p < 0.01). IPTW analysis showed that PRI on Day 5 was not associated with Day 90 mortality (IPTWHR = 1.22; CI 95% 0.84–1.75; p = 0.29), whereas PRI without glycemic control was associated with an increased risk of death at Day 90 (IPTWHR = 3.34; CI 95% 1.26–8.83; p < 0.01).ConclusionIn ICU patients without previous diabetic treatments, only PRI without glycemic control on Day 5 was associated with an increased risk of death. Additional studies are required to determine the factors contributing to these results.

Implementation of a Nurse-Driven Spontaneous Awakening Trial Protocol in a Cardiac Intensive Care Unit.

In patients receiving mechanical ventilation, spontaneous awakening trials reduce morbidity and mortality when paired with spontaneous breathing trials. However, spontaneous awakening trials are not performed every day they are indicated and little is known about spontaneous awakening trial protocol use in cardiac intensive care units. Spontaneous awakening trial completion rate at the study institution was low and no trial protocol was regularly used. A preintervention-postintervention retrospective cohort study was performed in adult patients with at least 24 hours of invasive mechanical ventilation in Michigan Medicine's cardiac intensive care unit. Patients with SARS-CoV-2 infection were excluded. Data included demographics, sedation, mechanical ventilation duration, and in-hospital mortality. A nurse-driven spontaneous awakening trial protocol modified for the cardiac intensive care unit was implemented in October 2020. Compared with the preintervention cohort (n = 29, May through July 2020), the postintervention cohort (n = 27, October 2020 through February 2021) had a higher ratio of number of trials performed to number of days eligible for trial (0.91 vs 0.52; P < .01). Median continuous sedative infusion duration was shorter after intervention (2.3 vs 3.6 days; P = .02). Median mechanical ventilation duration (3.8 vs 4.7 days; P = .18) and mortality (41% vs 41%; P = .95) were similar between groups. Spontaneous awakening trial protocol implementation led to a higher trial completion rate and a shorter duration of continuous sedative infusion. Larger studies are needed to assess the impact of protocolized spontaneous awakening trials on cardiac intensive care unit patient outcomes.

Clinical characteristics, outcome and prognostic factors in critically ill patients with lupus nephritis.

To describe the clinical characteristics and outcome of patients with lupus nephritis (LN) in intensive care unit (ICU), identify prognostic factors and construct a predictive model of in-ICU survival. A total of 505 ICU admissions of lupus patients were screened and LN patients confirmed by renal biopsy were enrolled. Clinical characteristics and outcome of patients in ICU were collected. A logistic regression analysis was performed to identify independent prognostic factors and a nomogram was plotted to construct a predictive model. A total of 70 patients with LN were enrolled. The median age of the patients was 28.5 years, and the median course of LN was two months. Renal pathology classes indicated that 38 patients were class IV, 11 were class IV+V, and 10 were class III. The most common primary cause of ICU admission was infection in 40 patients, followed by LN in 11 patients. Forty-one patients died in ICU. The multivariate analyses revealed that lactic acid (OR 1.682 [2.130-17.944], p=0.001), gamma-glutamyl transpeptidase (OR 1.057 [1.009-1.107], p=0.020), APACHE II (OR 3.852 [1.176-12.618], p=0.026), vasopressor (OR 10.571 [1.615-69.199], p=0.014) and platelet count (OR 0.967 [0.941-0.993], p=0.013) were independently associated with ICU survival of critical LN patients. A predictive model was constructed and validated. This study is the first to elucidate the features and identify prognostic factors in critically ill patients with LN. These findings could help clinicians to early identify high-risk patients of mortality, which consequently may reduce the mortality of critically ill patients with LN.

Long-stay medical-surgical intensive care unit patients in South Africa: Quality of life and mortality 1 year after discharge

Background. Although mortality is the primary measure of critical care outcome, the health-related quality of life (HRQOL) of survivors is often diminished. There is a paucity of South African research on HRQOL in intensive care unit (ICU) survivors. Objectives. To evaluate the 1-year post-discharge data of long-stay ICU patients, a group known to consume 20 - 40% of ICU resources. Methods. A 1-year prospective observational study was conducted in a multidisciplinary medical-surgical ICU. Adult patients who were mechanically ventilated beyond 6 days were included. Clinical and mortality data were collected. Pre-admission and 6- and 12-month HRQOL were measured with the Short Form-36 questionnaire. Physical and mental component summary scores (PCS and MCS) were calculated. Associations between 12-month mortality and poor HRQOL scores were determined. Results. Of 119 patients enrolled, 40.3% had sustained trauma, 19.3% were post-surgical and 40.3% had medical conditions; 29.2% were HIV-positive (HIV status was known for 74.8% of the cohort). The hospital and 12-month mortality rates were 42.9% and 57.4% (n=66/115), respectively. Age, longer ICU stay, higher disease severity scores and vasopressor use were associated with 12-month mortality. The survivors’ median PCS and MCS at 6 and 12 months were significantly lower compared with pre-admission scores (both p&lt;0.001). At 12 months, 53.1% of survivors demonstrated a poor PCS and 42.9% a poor MCS. Associations with poor 12-month PCS included longer ICU stay, male gender and trauma, while trauma and sepsis were associated with a poor 12-month MCS. Among the 19 trauma survivors, 78.9% had a poor MCS and/or PCS. Of previously employed patients, 54.8% were unemployed at 12 months. Conclusions. Patients ventilated beyond 6 days in a multidisciplinary ICU had a high mortality. Poor HRQOL at 12 months post discharge was frequently observed among survivors. Trauma was associated with poor 12-month outcomes. These findings highlight the need to further explore the outcomes of long-stay ICU patients in Africa.

Interleukin 6 and Its Correlation with COVID-19 in Terms of Outcomes in an Intensive Care Unit of a Rural Hospital:A Cross-sectional Study.

BackgroundInterleukin 6 (IL-6) encoded by the gene coded as IL 6 acts as a proinflammatory cytokine as well as an anti-inflammatory myokine. It is postulated that IL 6 is associated directly with the severity of coronavirus disease-2019 (COVID-19). Another domain that is thought to predict the severity of COVID-19 is the neutrophil:lymphocyte (N:L) ratio; a higher N:L ratio is postulated to be related to more severe outcomes. Thus, the present study was aimed to establish a correlation of COVID-19 with IL-6 in terms of clinical outcomes. We had also tried to find the relationship between IL-6 and N:L ratio and high-resolution computed tomography (HRCT) score.MethodsWe have conducted a cross-sectional study of 200 patients who were admitted to the intensive care unit (ICU) with reverse transcriptase-polymerase chain reaction (RT-PCR) positive for COVID-19 from January to May 2021. Serum IL-6, N:L ratio, and HRCT chest were conducted on admission.ResultOut of 200 patients who were admitted to the ICU with COVID-19, while the IL-6 was higher in patients with increased N:L ratio and HRCT score, the association of IL-6 with clinical outcomes in terms of discharged and expired was found to be statistically not significant.ConclusionSerum IL-6 was found not to be a potent marker for clinical outcomes in ICU patients in terms of death vs survived. However, the IL-6 levels on admission can be correlated with the computed tomography (CT) severity scores as well as N:L ratio of patients admitted to an ICU.How to cite this articleTalwar D, Kumar S, Acharya S, Raisinghani N, Madaan S, Hulkoti V, et al. Interleukin 6 and Its Correlation with COVID-19 in Terms of Outcomes in an Intensive Care Unit of a Rural Hospital: A Cross-sectional Study. Indian J Crit Care Med 2022;26(1):39–42.

Assessment of the Clinical Profiles of the Obstetric Patients Admitted to ICU in a Tertiary Care Hospital, Madhya Pradesh, India: A Longitudinal Study

Introduction: Management of critically ill obstetric population admitted to Intensive Care Unit (ICU) remains a significant hurdle in developing countries. Aim: To examine demographic characteristics, diagnoses, clinical outcomes, and performance of modified Sequential Organ Failure Assessment (SOFA) score between survivors and non survivors in all obstetric admissions to the ICU. Materials and Methods: This was a longitudinal study conducted in a 12-bedded obstetric ICU at 850 bedded Netaji Subhash Chandra Bose Medical College, Madhya Pradesh, India from March 2016 to August 2017. Clinical profile and outcomes of ICU patients were analysed for total 367 obstetric ICU admission. To determine mortality outcomes of the study population, a modified SOFA score was used to take into account physiological changes in pregnancy. All statistical analyses were performed using Statistical Package for Social Sciences (SPSS) version 15.0 (Inc., Chicago, Illinois, USA). Receiver Operating Characteristics (ROC) curve analyses of SOFA score as a predictor of mortality, and optimum cutoff point value was determined. Results: The mean age of the study population was 24.7±4.0 years. Eclampsia (35.7%) and preeclampsia (13.62%) were the leading indications of admission. The survival of patients was associated significantly with low SOFA scores with mean SOFA score of 6.48±2.804 among survivors and 10.42±3.579 among non survivors (p-value=0.001). Conclusion: Eclampsia and preeclampsia were the leading cause of ICU admission, that can be preventable. Higher SOFA score was related to higher mortality in the obstetric patients requiring ICU.

Plasma NfL trajectory during ICU‐treatment of COVID‐19 patients: A prospective cohort study

BackgroundCOVID‐19 is a respiratory disease where neurological sequelae are frequently reported. Neurofilament light (NfL) in plasma is a validated biomarker for neuronal damage. We assessed the trajectory of NfL levels in intensive care unit (ICU) patients diagnosed with COVID‐19, and studied its relationship to clinical outcomes and markers of hypothesized pathophysiological mechanisms.MethodAs part of the Art‐Deco study and Amsterdam UMC COVID‐biobank, longitudinal samples and clinical data were collected weekly from a cohort of 31 prospectively admitted ICU patients with a minimum of 7 days of ventilation. The mean±sd age was 63±11 years. Admission duration ranged from 14‐35 days and 156 samples were collected. We evaluated the NfL trajectory over time, and whether this trajectory differed by 90‐day mortality outcome. Due to the non‐linear trajectory of NfL, we applied linear mixed models including cubic splines for the time variable. Secondly, we tested whether baseline or peak NfL levels predicted mortality (n=7/31), delirium incidence after detubation (n=18/22), and duration of delirium (6±6 days). Third, we assessed if disease severity (day 7 Sequential Organ Failure Assessment [SOFA] score) and baseline hypoxemia (pAO2 before intubation), inflammation (IL1‐b, IL‐6, IL‐8, TNF‐α), and coagulopathy (d‐dimer, presence of pulmonary embolism) were predictive of the NfL trajectory. For the latter models, we included an interaction term for the pathophysiological markers in the linear mixed models. All models were adjusted for age.ResultNfL increased during ICU admission (p<001), and persisted longer in the non‐survivors (p<0.05;Figure 1). Baseline or maximum NfL was not predictive of mortality or delirium incidence. However, maximum NfL correlated to the duration of delirium (r=0.5;p=0.02). From the pathophysiological markers, SOFA scores (p<0.05) and baseline TNF‐α (p<0.05) were related to a stronger increase of NfL over time.ConclusionNfL levels increased over time and plateaued after 2‐3 weeks in most COVID‐19 patients at the ICU. Peak levels of NfL were predictive of delirium persistence. Repeated NfL levels may provide a future method for monitoring neurological outcomes in sedated ICU patients. Disease severity and specific inflammatory components appear important predictors of the NfL trajectory reflecting axonal damage in severe COVID‐19 patients.

Influence of Dexmedetomidine on Diaphragm Function and Postoperative Outcomes in ICU Patients with Mechanical Ventilation.

Objective To probe into the influence of dexmedetomidine (DEX) on diaphragm function and postoperative outcomes of mechanically ventilated patients in the intensive care unit (ICU). Methods 84 patients with mechanical ventilation (MV) in the ICU of our hospital were selected as the research participants, including 38 patients in the control group (CG) sedated with midazolam (MZ) and 46 patients in the research group (RG) with DEX sedation. Ramsay sedation score, visual analogue scale (VAS), and restlessness score (RS) were used to evaluate their state before sedation (T0), as well as 2 h (T1), 6 h (T2), and 24 h (T3) after sedation, and the alterations of mean arterial pressure (MAP) and heart rate (HR) were recorded. Serum cortisol (Cor), adrenocorticotropic hormone (ACTH), superoxide dismutase (SOD), malondialdehyde (MDA), interleukin- (IL-) 1β, IL-6, and tumor necrosis factor-α (TNF-α) were measured before and 24 h after sedation. The end-inspiratory diaphragm thickness (DTei) and end-expiratory diaphragm thickness (DTee) were measured within 2 h after the initiation of MV and 5 min after the spontaneous breathing test (SBT), and the diaphragm thickening fraction (DTF) was calculated. Finally, the ventilator weaning, MV time, and the incidence of adverse reactions (ADs) of the two groups were counted. Results T0 and T3 witnessed no distinct difference in Ramsay, VAS, and RS scores between the two arms (P > 0.05), but at T1 and T2, RG had better sedation state and lower VAS and RS scores than CG (P < 0.05), with more stable vital signs (P < 0.05). After sedation, the contents of oxidative stress and inflammatory factors in RG were lower, while DTee, DTei, and DTF were higher, versus CG (P < 0.05). Moreover, RG presented higher success rate of first ventilator weaning, less MV time, and lower incidence of ADs than CG (P < 0.05). Conclusions DEX is effective in mechanically ventilated patients in the ICU, which can protect patients against diaphragm function damage, improve the success rate of ventilator weaning, and benefit the postoperative outcome, with excellent and rapid sedation effect and less stress damage to patients.

A descriptive study of the surge response and outcomes of ICU patients with COVID-19 during first wave in Nordic countries.

BackgroundWe sought to provide a description of surge response strategies and characteristics, clinical management and outcomes of patients with severe COVID‐19 in the intensive care unit (ICU) during the first wave of the pandemic in Denmark, Finland, Iceland, Norway and Sweden.MethodsRepresentatives from the national ICU registries for each of the five countries provided clinical data and a description of the strategies to allocate ICU resources and increase the ICU capacity during the pandemic. All adult patients admitted to the ICU for COVID‐19 disease during the first wave of COVID‐19 were included. The clinical characteristics, ICU management and outcomes of individual countries were described with descriptive statistics.ResultsMost countries more than doubled their ICU capacity during the pandemic. For patients positive for SARS‐CoV‐2, the ratio of requiring ICU admission for COVID‐19 varied substantially (1.6%–6.7%). Apart from age (proportion of patients aged 65 years or over between 29% and 62%), baseline characteristics, chronic comorbidity burden and acute presentations of COVID‐19 disease were similar among the five countries. While utilization of invasive mechanical ventilation was high (59%–85%) in all countries, the proportion of patients receiving renal replacement therapy (7%–26%) and various experimental therapies for COVID‐19 disease varied substantially (e.g. use of hydroxychloroquine 0%–85%). Crude ICU mortality ranged from 11% to 33%.ConclusionThere was substantial variability in the critical care response in Nordic ICUs to the first wave of COVID‐19 pandemic, including usage of experimental medications. While ICU mortality was low in all countries, the observed variability warrants further attention.

Barotrauma, invasive ventilation, and timing of tocilizumab as predictors of mortality along with inflammatory markers and comorbidities in critically ill COVID-19 patients: A retrospective study.

Barotrauma, invasive ventilation, and timing of tocilizumab as predictors of mortality along with inflammatory markers and comorbidities in critically ill COVID-19 patients: A retrospective study.