Sunday, May 19, 2019

Pediatric Critical Care Medicine

Antibiotic Prophylaxis for Open Chest Management After Pediatric Cardiac Surgery
Objectives: Although open chest management optimizes hemodynamics after cardiac surgery, it increases postoperative infections and leads to increased mortality. Despite the importance of antibiotic prophylaxis during open chest management, no specific recommendations exist. We aimed to compare the occurrence rates of bloodstream infection and surgical site infection between the different prophylactic antibiotic regimens for open chest management after pediatric cardiac surgery. Design: Retrospective, single-center, observational study. Setting: PICU at a tertiary children's hospital. Patients: Consecutive patients less than or equal to 18 years old with open chest management after cardiac surgery followed by delayed sternal closure, between January 2012 and June 2018. Interventions: None. Measurements and Main Results: We compared the composite occurrence rate of postoperative bloodstream infection and surgical site infection within 30 days after cardiac surgery between three prophylactic antibiotic regimens: 1) cefazolin, 2) cefazolin + vancomycin, and 3) vancomycin + meropenem. In 63 pediatric cardiac surgeries with open chest management, 17 bloodstream infections, and 12 surgical site infections were identified postoperatively. The composite occurrence rates of bloodstream infection and surgical site infection were 10 of 15 (67%), 10 of 19 (53%), and nine of 29 (31%) in the cefazolin, cefazolin + vancomycin, and vancomycin + meropenem regimens, respectively (p = 0.07). After adjusting for age, open chest management duration, extracorporeal membrane oxygenation use, and nasal methicillin-resistant Staphylococcus aureus colonization in multivariable analysis, there was no significant difference between the cefazolin and the cefazolin + vancomycin regimens (p = 0.19), while the vancomycin + meropenem regimen had a lower occurrence rate of bloodstream infection and surgical site infection than the cefazolin regimen (odds ratio, 0.0885; 95% CI, 0.0176–0.446; p = 0.003). Conclusions: In this study, a lower occurrence rate of postoperative bloodstream infection and surgical site infection was observed among patients with broad-spectrum antibiotic regimen after pediatric cardiac surgery with open chest management. Further studies, ideally randomized controlled studies investigating the efficacy of broad-spectrum antibiotics and their complications, are warranted before routine implementation of broad-spectrum prophylactic antibiotic regimen. The authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: hatachi@wch.opho.jp ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

Noninvasive Determination of Blood Pressure by Heart Sound Analysis Compared With Intra-Arterial Monitoring in Critically Ill Children—A Pilot Study of a Novel Approach
Objectives: To develop a novel device to predict systolic and diastolic blood pressure based on measured heart sound signals and evaluate its accuracy in comparison to intra-arterial blood pressure readings. Study Design: Prospective, observational pilot study. Setting: PICU. Patients: Critically ill children (0–18 yr) undergoing continuous blood pressure monitoring via radial artery intra-arterial catheters were enrolled in the study after informed consent. The study included medical, cardiac, and surgical PICU patients. Interventions: Along with intra-arterial blood pressure, patient's heart sounds were recorded simultaneously by a highly sensitive sensor taped to the chest. Additional hardware included a data acquisition unit and laptop computer. Subsequently, advanced signal processing technologies were used to minimize random interfering signals and extract and separate S1 and S2 signals. A computerized model was then developed using artificial neural network systems to estimate blood pressure from the extracted heart sound analysis. Measurements and Main Outcomes: We found a statistically significant correlation for systolic (r = 0.964; R2 = 0.928) and diastolic (r = 0.935; R2 = 0.868) blood pressure readings (n = 491) estimated by the novel heart-sound signal–based method and those recorded by intra-arterial catheters. The mean difference of the individually paired determinations of the blood pressure between the heart-sound–based method and intra-arterial catheters was 0.6 ± 7 mm Hg for systolic blood pressure and –0.06 ± 5 mm Hg for diastolic blood pressure, which was within the recommended range of 5 ± 8 mm Hg for any new blood pressure devices. Conclusions: Our findings provide proof of concept that the heart-sound signal-based method can provide accurate, noninvasive blood pressure monitoring. Drs. Kapur and Chen contributed equally to the article. This work was supported by the 21st Century Jobs Trust Fund received through the Michigan Strategic Fund from the State of Michigan and administered by the Michigan Economic Development Corporation (www.michiganbusiness.org). Dr. Kapur's institution received funding from Alexion; a nonprovisional patent (number PCT/US18/17178) titled, "Method and Apparatus for Determining Blood Pressure on Measured Heart Sounds," based on this research was submitted on 02/07/2018 (to Drs. Kapur, Chen, Xu, and Wu listed as co-inventors); and he disclosed off-label product use of the technology reported in the article, which is currently investigational and not approved by the U.S. Food and Drug Administration for any purposes. Drs. Kapur and Chen disclosed that this work was supported by the 21st Century Jobs Trust Fund received through the Michigan Strategic Fund from the State of Michigan and administered by the Michigan Economic Development Corporation. Dr. Xu disclosed work for hire. The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: gkapur@med.wayne.edu ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

Relationship Between Diaphragmatic Electrical Activity and Esophageal Pressure Monitoring in Children
Objectives: Mechanical ventilation is an essential life support technology, but it is associated with side effects in case of over or under-assistance. The monitoring of respiratory effort may facilitate titration of the support. The gold standard for respiratory effort measurement is based on esophageal pressure monitoring, a technology not commonly available at bedside. Diaphragmatic electrical activity can be routinely monitored in clinical practice and reflects the output of the respiratory centers. We hypothesized that diaphragmatic electrical activity changes accurately reflect changes in mechanical efforts. The objectives of this study were to characterize the relationship between diaphragmatic electrical activity and esophageal pressure. Design: Prospective crossover study. Setting: Esophageal pressure and diaphragmatic electrical activity were simultaneously recorded using a specific nasogastric tube in three conditions: in pressure support ventilation and in neurally adjusted ventilatory support in a random order, and then after extubation. Patients: Children in the weaning phase of mechanical ventilation. Interventions: The maximal swing in esophageal pressure and esophageal pressure-time product, maximum diaphragmatic electrical activity, and inspiratory diaphragmatic electrical activity integral were calculated from 100 consecutive breaths. Neuroventilatory efficiency was estimated using the ratio of tidal volume/maximum diaphragmatic electrical activity. Measurements and Main Results: Sixteen patients, with a median age of 4 months (interquartile range, 0.5–13 mo), and weight 5.8 kg (interquartile range, 4.1–8 kg) were included. A strong linear correlation between maximum diaphragmatic electrical activity and maximal swing in esophageal pressure (r2 > 0.95), and inspiratory diaphragmatic electrical activity integral and esophageal pressure-time product (r2 > 0.71) was observed in all ventilatory conditions. This correlation was not modified by the type of ventilatory support. Conclusions: On a short-term basis, diaphragmatic electrical activity changes are strongly correlated with esophageal pressure changes. In clinical practice, diaphragmatic electrical activity monitoring may help to inform on changes in respiratory efforts. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (http://journals.lww.com/pccmjournal). Dr. Baudin received funding from Maquet Critical Care (speaking fees and nonfinancial support). Dr. Beck received funding from Maquet Critical Care (she and her husband have made inventions related to neural control of mechanical ventilation that are patented. The patents are assigned to the academic institution[s] where inventions were made. The license for these patents belongs to Maquet Critical Care. Future commercial uses of this technology may provide financial benefit to them through royalties) and Neurovent Research Inc (NVR) (she and her husband own 50% of NVR, which is a research and development company that builds the equipment and catheters for research studies. NVR has a consulting agreement with Maquet Critical Care). Dr. Jouvet's institution received funding from Air Liquide Santé (grant and lecture), and he received salary and grant funding from the Ministry of Health of Quebec, Sainte Justine Hospital, and Public Research Agency of Quebec. Dr. Emeriaud's institution received funding from Fonds de Recherche du Québec—Santé and Maquet Critical Care (currently supporting a feasibility study in neonatal ventilation which Dr. Emeriaud is leading). The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: sandrine.essouri.hsj@ssss.gouv.qc.ca ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

International Study of the Epidemiology of Platelet Transfusions in Critically Ill Children With an Underlying Oncologic Diagnosis
Objectives: To describe the epidemiology of platelet transfusions in critically ill children with an underlying oncologic diagnosis and to examine effects of prophylactic versus therapeutic transfusions. Design: Subgroup analysis of a prospective, observational study. Setting: Eighty-two PICUs in 16 countries. Patients: All children (3 d to 16 yr old) who received a platelet transfusion during one of the six predefined screening weeks and had received chemotherapy in the previous 6 months or had undergone hematopoietic stem cell transplantation in the last year. Interventions: None. Measurements and Main Results: Of the 548 patients enrolled in the parent study, 237 (43%) had an underlying oncologic diagnosis. In this population, 71% (168/237) of transfusions were given prophylactically, and 59% (139/237) of transfusions were given at a total platelet count greater than 20 × 109/L, higher than the current recommendations. Those with an underlying oncologic diagnosis were significantly older, and received less support including less mechanical ventilation, fewer medications that affect platelet function, and less use of extracorporeal life support than those without an underlying oncologic diagnosis. In this subpopulation, there were no statistically significant differences in median (interquartile range) platelet transfusion thresholds when comparing bleeding or nonbleeding patients (50 × 109/L [10–50 × 109/L] and 30 × 109/L [10–50 × 109/L], respectively [p = 0.166]). The median (interquartile range) interval transfusion increment in children with an underlying oncologic diagnosis was 17 × 109/L (6–52 × 109/L). The presence of an underlying oncologic diagnosis was associated with a poor platelet increment response to platelet transfusion in this cohort (adjusted odds ratio, 0.46; 95% CI, 0.22–0.95; p = 0.035). Conclusions: Children with an underlying oncologic diagnosis receive nearly half of platelet transfusions prescribed by pediatric intensivists. Over half of these transfusions are prescribed at total platelet count greater than current recommendations. Studies must be done to clarify appropriate indications for platelet transfusions in this vulnerable population. The Point Prevalence Study of Platelet Transfusions in Critically Ill Children (P3T) Investigators are listed in the Acknowledgments. Dr. Cushing received funding from Cerus Corporation, Octapharma, and Instrumentation Laboratory. Dr. Steiner's institution received funding from the National Institutes of Health and Boeringer-Ingelheim, and she received funding from Cerus (travel for study design consultation regarding pathogen-inactivated red cells). The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: man9026@med.cornell.edu ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

Parent Medical Traumatic Stress and Associated Family Outcomes After Pediatric Critical Illness: A Systematic Review
Objectives: To critically review, analyze, and synthesize the literature on parent medical traumatic stress from a child's critical illness requiring PICU admission and its association with outcomes of parent mental and physical health, and family functioning. Data Sources: Systematic literature search of Pubmed, Embase, CINAHL, and PsychInfo. Study Selection: Two reviewers identified peer-reviewed published articles with the following criteria: 1) published between January 1, 1980, and August 1, 2018; 2) published in English; 3) study population of parents of children with a PICU admission; and 4) quantitative studies examining factors associated with outcomes of parent mental health, parent physical health, or family functioning. Data Extraction: Literature search yielded 2,476 articles, of which 23 studies met inclusion criteria. Study data extracted included study characteristics, descriptive statistics of parent outcomes after critical illness, and variables associated with parent and family outcomes. Data Synthesis: Studies examined numerous variables associated with parent and family outcomes and used multiple survey measures. These variables were categorized according to their phase in the Integrative Trajectory Model of Pediatric Medical Traumatic Stress, which included peri-trauma, acute medical care, and ongoing care or discharge from care. The majority of objective elements of a child's illness, such as severity of illness and length of hospitalization, did not have a clear relationship with parent and family outcomes. However, familial preexisting factors, a parent's subjective experience in the PICU, and family life stressors after discharge were often associated with parent and family outcomes. Conclusions: This systematic literature review suggests that parent and family outcomes after pediatric critical illness are impacted by familial preexisting factors, a parent's subjective experience in the PICU, and family life stressors after discharge. Developing parent interventions focused on modifying the parent's subjective experience in the PICU could be an effective approach to improve parent outcomes. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (http://journals.lww.com/pccmjournal). This work was supported by the Department of Pediatrics at Children's Hospital of Michigan and the Department of Pediatrics at the University of Michigan. The authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: lyagiela@dmc.org ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

Severe Sepsis in Pediatric Liver Transplant Patients: The Emergence of Multidrug-Resistant Organisms
Objectives: To describe characteristics of liver transplant patients with severe sepsis in the PICU. Design: Retrospective descriptive analysis. Setting: Tertiary children's hospital PICU. Patients: Liver transplant recipients admitted January 2010 to July 2016 for pediatric severe sepsis. Interventions: None. Measurements and Main Results: Between January 2010 and July 2016, 173 liver transplants were performed, and 36 of these patients (21%) were admitted with severe sepsis (54 episodes total). Median age at admission was 2 years (1–6.5 yr), 47.2% were male. Bacterial infections were the most common (77.8%), followed by culture negative (12.9%) and viral infections (7.4%). Fungal infections accounted for only 1.9%. Median time from transplant for viral and culture negative infections was 18 days (8.25–39.75 d) and 25 days (9–41 d), whereas 54.5 days (17–131.25 d) for bacterial infections. Bloodstream and intra-abdominal were the most common bacterial sites (45% and 22.5%, respectively). Multidrug-resistant organisms accounted for 47.6% of bacterial sepsis. Vancomycin-resistant Enterococcus and extended-spectrum beta-lactamase producers were the most frequently identified multidrug-resistant organisms. Patients with multidrug-resistant organism sepsis demonstrated higher admission Pediatric Logistic Organ Dysfunction scores (p = 0.043) and were noted to have an odds ratio of 3.8 and 3.6 for mechanical ventilation and multiple organ dysfunction syndrome, respectively (p = 0.047 and p = 0.044). Overall mortality was 5.5% (n = 2 patients), with both deaths occurring in multidrug-resistant organism episodes. Conclusions: We report that multidrug-resistant organisms are increasingly being identified as causative pathogens for sepsis in pediatric liver transplant recipients and are associated with significantly higher odds for mechanical ventilation and higher organ failure. The emergence of multidrug-resistant organism infections in pediatric liver transplant patients has implications for patient outcomes, antibiotic stewardship, and infection prevention strategies. Supported, in part, by grant from National Institutes of Health (NIH) T32-HD40686 (to Dr. Alcamo) and NIH R01-GM108618 (to Dr. Carcillo). Dr. Alcamo's institution received funding from National Institutes of Health (NIH) T32 HD040686. Drs. Alcamo, Carcillo, and Aneja received support for article research from the NIH. Dr. Carcillo's institution received funding from the NIH/National Institute of General Medical Sciences. Dr. Michaels' institution received funding from Pfizer (unrelated study grant), and she received funding as an American Society of Transplantation board member (travel and room for meetings, no honoraria) and from National Institute of Allergy and Infectious Diseases (honoraria and travel and room for Data and Safety Monitoring Board meetings). Dr. Aneja received royalties from UpToDate. The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: Alicia.Alcamo@chp.edu ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

State of the Unit: Physician Gender Diversity in Pediatric Critical Care Medicine Leadership
Gender disparities in leadership are receiving increased attention throughout medicine and medical subspecialties. Little is known about the disparities in Pediatric Critical Care Medicine. In this piece, we explore gender disparities in Pediatric Critical Care Medicine physician leadership. We examine physician leadership in the Accreditation Council for Graduate Medical Education fellowship programs, as well as a limited sample of major Pediatric Critical Care Medicine textbooks and societies. Overall, the gender composition of division directors is not significantly different from that of workforce composition, although regional differences exist. More women than men lead fellowship programs, at a higher ratio compared with workforce composition. However, greater gender disparities are present in editorial leadership in this limited analysis. We conclude by recommending potential paths forward for further study and intervention, such as tracking gender diversity and being cognizant of the unique challenges that women currently experience in professional advancement. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (http://journals.lww.com/pccmjournal). Dr. Riley receives support from the Institute for Healthcare Improvement to develop measurement framework and measures for the 100 Million Healthier Lives Initiative. Dr. Stalets received funding from Fisher & Paykel (hotel and flight accommodations to attend a conference). The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: Andrea.Maxwell@cchmc.org ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

Association of Organ Dysfunction Scores and Functional Outcomes Following Pediatric Critical Illness
Objectives: Short-term and long-term morbidity and mortality are common following pediatric critical illness. Severe organ dysfunction is associated with significant in-hospital mortality in critically ill children; however, the performance of pediatric organ dysfunction scores as predictors of functional outcomes after critical illness has not been previously assessed. Design: Secondary analysis of a prospective observational cohort. Setting: A multidisciplinary, tertiary, academic PICU. Patients: Patients less than or equal to 18 years old admitted between June 2012 and August 2012. Interventions: None. Measurements and Main Results: The maximum pediatric Sequential Organ Failure Assessment and Pediatric Logistic Organ Dysfunction-2 scores during admission were calculated. The Functional Status Scale score was obtained at baseline, 6 months and 3 years following discharge. New morbidity was defined as a change in Functional Status Scale greater than or equal to 3 points from baseline. The performance of organ dysfunction scores at discriminating new morbidity or mortality at 6 months and 3 years was measured using the area under the curve. Seventy-three patients met inclusion criteria. Fourteen percent had new morbidity or mortality at 6 months and 23% at 3 years. The performance of the maximum pediatric Sequential Organ Failure Assessment and Pediatric Logistic Organ Dysfunction-2 scores at discriminating new morbidity or mortality was excellent at 6 months (areas under the curves 0.9 and 0.88, respectively) and good at 3 years (0.82 and 0.79, respectively). Conclusions: Severity of organ dysfunction is associated with longitudinal change in functional status and short-term and long-term development of new morbidity and mortality. Maximum pediatric Sequential Organ Failure Assessment and Pediatric Logistic Organ Dysfunction-2 scores during critical illness have good to excellent performance at predicting new morbidity or mortality up to 3 years after critical illness. Use of these pediatric organ dysfunction scores may be helpful for prognostication of longitudinal functional outcomes in critically ill children. All authors conceptualized, designed, analyzed, drafted the article for important intellectual content, and collected the data. The authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: travis.matics@advocatehealth.com ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

The Inadequate Oxygen Delivery Index and Low Cardiac Output Syndrome Score As predictors of Adverse Events Associated With Low Cardiac Output Syndrome Early After Cardiac Bypass
Objectives: To evaluate the effectiveness of two scoring systems, the inadequate oxygen delivery index, a risk analytics algorithm (Etiometry, Boston, MA) and the Low Cardiac Output Syndrome Score, in predicting adverse events recognized as indicative of low cardiac output syndrome within 72 hours of surgery. Design: A retrospective observational pair-matched study. Setting: Tertiary pediatric cardiac ICU. Patients: Children undergoing cardiac bypass for congenital heart defects. Cases experienced an adverse event linked to low cardiac output syndrome in the 72 hours following surgery (extracorporeal membrane oxygenation, renal replacement therapy, cardiopulmonary resuscitation, and necrotizing enterocolitis) and were matched with a control patient on criteria of procedure, diagnosis, and age who experienced no such event. Interventions: None. Measurements and Main Results: Of a total 536 bypass operations in the study period, 38 patients experienced one of the defined events. Twenty-eight cases were included in the study after removing patients who suffered an event after 72 hours or who had insufficient data. Clinical and laboratory data were collected to derive scores for the first 12 hours after surgery. The inadequate oxygen delivery index was calculated by Etiometry using vital signs and laboratory data. A modified Low Cardiac Output Syndrome Score was calculated from clinical and therapeutic markers. The mean inadequate oxygen delivery and modified Low Cardiac Output Syndrome Score were compared within each matched pair using the Wilcoxon signed-rank test. Inadequate oxygen delivery correctly differentiated adverse events in 13 of 28 matched pairs, with no evidence of inadequate oxygen delivery being higher in cases (p = 0.71). Modified Low Cardiac Output Syndrome Score correctly differentiated adverse events in 23 of 28 matched pairs, with strong evidence of a raised score in low cardiac output syndrome cases (p < 0.01). Conclusions: Although inadequate oxygen delivery is an Food and Drug Administration approved indicator of risk for low mixed venous oxygen saturation, early postoperative average values were not linked with medium-term adverse events. The indicators included in the modified Low Cardiac Output Syndrome Score had a much stronger association with the specified adverse events. This work was undertaken at Great Ormond Street Hospital/UCL Institute of Child Health, which received a proportion of funding from the Department of Health's National Institute of Health Research Biomedical Research Centre's funding scheme. Drs. Ray and Peters' institutions received funding from Great Ormond Street Hospital Children's Charity (GOSHCC). Dr. Peters received funding from Faron pharmaceuticals (advisory board) and Therakind. Drs. Peters and Brown received support for article research from GOSHCC. Dr. Brown received other support from GOSHCC PICU infrastructure grant supporting Libby Rogers. The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: samiran.ray@gosh.nhs.uk ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

Decision-Making About Intracranial Pressure Monitor Placement in Children With Traumatic Brain Injury
Objectives: Little is known about how clinicians make the complex decision regarding whether to place an intracranial pressure monitor in children with traumatic brain injury. The objective of this study was to identify the decisional needs of multidisciplinary clinician stakeholders. Design: Semi-structured qualitative interviews with clinicians who regularly care for children with traumatic brain injury. Setting: One U.S. level I pediatric trauma center. Subjects: Twenty-eight clinicians including 17 ICU nurses, advanced practice providers, and physicians and 11 pediatric surgeons and neurosurgeons interviewed between August 2017 and February 2018. Interventions: None. Measurements and Main Results: Participants had a mean age of 43 years (range, 30–66 yr), mean experience of 10 years (range, 0–30 yr), were 46% female (13/28), and 96% white (27/28). A novel conceptual model emerged that related the difficulty of the decision about intracranial pressure monitor placement (y-axis) with the estimated outcome of the patient (x-axis). This model had a bimodal shape, with the most difficult decisions occurring for patients who 1) had a good opportunity for recovery but whose neurologic examination had not yet normalized or 2) had a low but uncertain likelihood of neurologically functional recovery. Emergent themes included gaps in medical knowledge and information available for decision-making, differences in perspective between clinical specialties, and ethical implications of decision-making about intracranial pressure monitoring. Experienced clinicians described less difficulty with decision-making overall. Conclusions: Children with severe traumatic brain injury near perceived transition points along a spectrum of potential for recovery present challenges for decision-making about intracranial pressure monitor placement. Clinician experience and specialty discipline further influence decision-making. These findings will contribute to the design of a multidisciplinary clinical decision support tool for intracranial pressure monitor placement in children with traumatic brain injury. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (http://journals.lww.com/pccmjournal). Dr. Bennett's institution also received funding from the National Institutes of Health (NIH) Eunice Kennedy Shriver National Institute of Child Health and Human Development and NIH/National Center for Advancing Translational Science. Drs. Bennett's and Rutebemberwa's institutions received funding from Mindsource Brain Injury Network of the Colorado Department of Human Services. Ms. Marsh's and Dr. Maertens's institutions received funding from the Colorado Department of Human Services. Dr. Hankinson's institution received funding from Colorado Traumatic Brain Injury Trust Fund. The remaining authors have disclosed that they do not have any potential conflicts of interest. For information regarding this article, E-mail: tell.bennett@ucdenver.edu ©2019The Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies

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