Brain Trauma Foundation Guidelines Research Articles

Clinical and Imaging Characteristics, Care Pathways, and Outcomes of Traumatic Epidural Hematomas: A Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury Study.

Guideline recommendations for surgical management of traumatic epidural hematomas (EDHs) do not directly address EDHs that co-occur with other intracranial hematomas; the relative rates of isolated vs nonisolated EDHs and guideline adherence are unknown. We describe characteristics of a contemporary cohort of patients with EDHs and identify factors influencing acute surgery. This research was conducted within the longitudinal, observational Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury cohort study which prospectively enrolled patients with traumatic brain injury from 65 hospitals in 18 European countries from 2014 to 2017. All patients with EDH on the first scan were included. We describe clinical, imaging, management, and outcome characteristics and assess associations between site and baseline characteristics and acute EDH surgery, using regression modeling. In 461 patients with EDH, median age was 41 years (IQR 24-56), 76% were male, and median EDH volume was 5 cm3 (IQR 2-20). Concomitant acute subdural hematomas (ASDHs) and/or intraparenchymal hemorrhages were present in 328/461 patients (71%). Acute surgery was performed in 99/461 patients (21%), including 70/86 with EDH volume ≥30 cm3 (81%). Larger EDH volumes (odds ratio [OR] 1.19 [95% CI 1.14-1.24] per cm3 below 30 cm3), smaller ASDH volumes (OR 0.93 [95% CI 0.88-0.97] per cm3), and midline shift (OR 6.63 [95% CI 1.99-22.15]) were associated with acute surgery; between-site variation was observed (median OR 2.08 [95% CI 1.01-3.48]). Six-month Glasgow Outcome Scale-Extended scores ≥5 occurred in 289/389 patients (74%); 41/389 (11%) died. Isolated EDHs are relatively infrequent, and two-thirds of patients harbor concomitant ASDHs and/or intraparenchymal hemorrhages. EDHs ≥30 cm3 are generally evacuated early, adhering to Brain Trauma Foundation guidelines. For heterogeneous intracranial pathology, surgical decision-making is related to clinical status and overall lesion burden. Further research should examine the optimal surgical management of EDH with concomitant lesions in traumatic brain injury, to inform updated guidelines.

Hyperventilation During Manual Ventilation Can Be Reduced Using a Novel Ventilator but Not With Education Interventions.

Traumatic brain injury (TBI) is the leading cause of combat casualties in modern war with an estimated 20% of casualties experiencing head injury. Since the release of the Brain Trauma Foundation's Guidelines for the Management of Severe Traumatic Brain Injury in 1995, recommendations for management of TBI have included the avoidance of routine hyperventilation. However, both published and anecdotal data suggest that many patients with TBI are inappropriately ventilated during transport, thereby increasing the risk of morbidity and mortality from secondary brain injury. Enlisted Air Force personnel with prior emergency medical technician training completing a 3-week trauma course were evaluated on their ability to provide manual ventilation. Participants provided manual ventilation using either an in-situ endotracheal tube (ETT) or standard face mask on a standardized simulated patient manikin with TBI on the first and last days of the course. Manual ventilation was provided via a standard manual ventilator and a novel manual ventilator designed to limit tidal volume (VT) and respiratory rate (RR). Participants were given didactic and hands-on training on the third day of the course. Half of the participants were given simulator feedback during the hands-on training. All students provided 2 minutes of manual ventilation with each respirator. Data were collected on the breath-to-breath RR, VT, and peak airway pressures generated by the participant for each trial and were averaged for each trial. A minute ventilation (MV) was then derived from the calculated RR and VT. One hundred fifty-six personnel in the trauma course were evaluated in this study. Significant differences were found in the participant's performance with manual ventilation with the novel compared to the traditional ventilator. Before training, MV with the novel ventilator was less than with the traditional ventilator by 2.1 ± 0.4 L/min (P = .0003) and 1.6 ± 0.5 L/min (P = .0489) via ETT and face mask, respectively. This effect persisted after training with a difference between the devices of 1.8 ± 0.4 L/min (P = .0069) via ETT. Both traditional education interventions (didactics with hands-on training) and simulator-based feedback did not make a significant difference in participant's performance in delivering MV. The use of a novel ventilator that limits RR and VT may be useful in preventing hyperventilation in TBI patients. Didactic education and simulator-based feedback training may not have significant impact on improving ventilation practices in prehospital providers.

Comparative Effectiveness of Intracranial Pressure Monitoring on 6-Month Outcomes of Critically Ill Patients With Traumatic Brain Injury

While the relationship between persistent elevations in intracranial pressure (ICP) and poorer outcomes is well established for patients with traumatic brain injury (TBI), there is no consensus on how ICP measurements should drive treatment choices, and the effectiveness of ICP monitoring remains unknown. To evaluate the effectiveness of ICP monitoring on short- and mid-term outcomes of patients with TBI. CREACTIVE was a prospective cohort study that started in March 2014 and lasted 5 years. More than 8000 patients with TBI were enrolled at 83 intensive care units (ICUs) from 7 countries who joined the CREACTIVE Consortium. Patients with TBI who met the Brain Trauma Foundation guidelines for ICP monitoring were selected for the current analyses, which were performed from January to November 2022. Patients who underwent ICP monitoring within 2 days of injury (exposure group) were propensity score-matched to patients who were not monitored or who underwent monitoring 2 days after the injury (control group). Functional disability at 6 months as indicated by Glasgow Outcome Scale-Extended (GOS-E) score. A total of 1448 patients from 43 ICUs in Italy and Hungary were eligible for analysis. Of the patients satisfying the ICP-monitoring guidelines, 503 (34.7%) underwent ICP monitoring (median [IQR] age: 45 years [29-61 years]; 392 males [77.9%], 111 females [22.1%]) and 945 were not monitored (median [IQR] age: 66 years [48-78 years]; 656 males [69.4%], 289 females [30.6%]). After matching to balance the variables, worse 6-month recovery was observed for monitored patients compared with nonmonitored patients (death/vegetative state: 39.2% vs 40.6%; severe disability: 33.2% vs 25.4%; moderate disability: 15.7% vs 14.9%; good recovery: 11.9% vs 19.1%, respectively; P = .005). Monitored patients received medical therapies significantly more frequently. In this cohort study, ICP monitoring was associated with poorer recovery and more frequent medical interventions with their relevant adverse effects. Optimizing the value of ICP monitoring for TBI requires further investigation on monitoring indications, clinical interventions, and management protocols.

Guidelines for Prehospital Management of Traumatic Brain Injury 3rd Edition: Executive Summary.

Prehospital care markedly influences outcome from traumatic brain injury, yet it remains highly variable. The Brain Trauma Foundation's guidelines informing prehospital care, first published in 2002, have sought to identify and disseminate best practices. Many of its recommendations relate to the management of airway, breathing and circulation, and infrastructure for this care. Compliance with the second edition of these guidelines has been associated with significantly improved survival. A working group developed evidence-based recommendations informing assessment, treatment, and transport decision-making relevant to the prehospital care of brain injured patients. A literature search spanning May 2005 to January 2022 supplemented data contained in the 2nd edition. Identified studies were assessed for quality and used to inform evidence-based recommendations. A total of 122 published articles formed the evidentiary base for this guideline update including 5 providing Class I evidence, 35 providing Class II evidence, and 98 providing Class III evidence for the various topics. Forty evidence-based recommendations were generated, 30 of which were strong and 10 of which were weak. In many cases, new evidence allowed guidelines from the 2nd edition to be strengthened. Development of guidelines on some new topics was possible including the prehospital administration of tranexamic acid. A management algorithm is also presented. These guidelines help to identify best practices for prehospital traumatic brain injury care, and they also identify gaps in knowledge which we hope will be addressed before the next edition.

Utility and Feasibility of Simulation-based Training in Teaching Concepts of Traumatic Brain Management to Neurology Trainees (P8-2.001)

<h3>Objective:</h3> To assess the feasibility and utility of simulation-based training in teaching concepts surrounding management of traumatic brain injury (TBI). <h3>Background:</h3> Neurology trainees respond to neurological emergencies but often do not have the opportunity to practice implementing their clinical knowledge and communication skills in managing such emergencies outside the clinical setting. <h3>Design/Methods:</h3> We developed a simulation-based training program for neurology residents to practice managing a patient presenting with acute TBI under the direct supervision of an expert in neurocritical care with opportunities for debriefing and feedback. The educational aims of the simulation were to familiarize learners with Brain Trauma Foundation guidelines on the management of TBI and to allow learners to practice closed loop communication in a multidisciplinary team. The simulation involved two learners, one confederate playing the role of emergency room nurse and ICU fellow, and a hired actor who played the role of the patient. Prior to the simulation, learners were given a 10-slide presentation to review relevant topics. A total of 40 minutes was allotted per session; 5 minutes to introduce the scenario, 20 minutes to complete the scenario, and 10 minutes for a debriefing. The effect of the simulation on learner aptitude in managing TBI was assessed via anonymous post-test. <h3>Results:</h3> A total of 8 learners participated in the simulation-based training. We were able to complete all simulation sessions in the allotted 40-minute time frame. On post-test reporting, 7/8 learners felt confident in managing TBI, 8/8 felt their confidence improved with the simulation, and 8/8 endorsed comfort in accessing resources regarding TBI guidelines. <h3>Conclusions:</h3> Teaching TBI management via simulation-based training is feasible and allows trainees to gain experience and comfort managing TBI. <b>Disclosure:</b> Dr. Franzova has nothing to disclose. Dr. Waldrop has nothing to disclose. Dr. Nwankwo has nothing to disclose. Dr. Ader has nothing to disclose. Dr. Bell has nothing to disclose. Dr. Velazquez has nothing to disclose. Dr. Agarwal has nothing to disclose. Dr. Roh has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Portola Pharmaceuticals. Dr. Park has received personal compensation in the range of $500-$4,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for Neurocritical Care. The institution of Dr. Park has received research support from National Institutes of Health. Sander Connolly has received intellectual property interests from a discovery or technology relating to health care. Dr. Claassen has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Marinus. Dr. Claassen has stock in iCE Neurosystems. The institution of Dr. Claassen has received research support from NINDS. The institution of Dr. Claassen has received research support from McDonnel Foundation. Dr. Claassen has received publishing royalties from a publication relating to health care. Dr. Claassen has received publishing royalties from a publication relating to health care. Dr. Amiel has nothing to disclose. Dr. Ghoshal has nothing to disclose.

Neurosurgical Outcomes in Severe Traumatic Brain Injuries Between Service Lines: Review of a Single Institution Database.

Severe traumatic injury (sTBI) continues to be a common source of morbidity and mortality. While there have been several advances in understanding the pathophysiology of this injury, the clinical outcome has remained grim. These trauma patients often require multidisciplinary care and are admitted to a surgical service line, depending on hospital policy. A retrospective chart review spanning 2019-2022 was completed using the electronic health record of the neurosurgery service. We identified 140 patients with a Glasgow Coma Scale (GCS) of eight or less, ages 18-99, who were admitted to a level-one trauma center in Southern California. Seventy patients were admitted under the neurosurgery service, while the other half were admitted to the surgical intensive care unit (SICU) service after initial assessment in the emergency department by both services to evaluate for multisystem injury. Between both groups, the injury severity scores that evaluated patients' overall injuries were not significantly different. The results demonstrate a significant difference in GCS change, modified Rankin Scale (mRS) change, and Glasgow Outcome Scale (GOS) change between the two groups. Furthermore, the mortality rate differed between neurosurgical care and other service care by 27% and 51%, respectively, despite similar Injury Severity Scores (ISS) (p=0.0026). Therefore, this data demonstrates that a well-trained neurosurgeon with critical care experience can safely manage a severe traumatic brain injury patient with an isolated head injury as a primary service while in the intensive care unit. Since injury severity scores did not differ between these two service lines, we further theorize that this is likely due to a deep understanding of the nuances of neurosurgical pathophysiology and Brain Trauma Foundation (BTF) guidelines.

Traumatic Brain Injury in Select Low- and Middle-Income Countries: A Narrative Review of the Literature.

Low- and middle-income countries (LMICs) experience the majority of traumatic brain injuries (TBIs), yet few studies have examined the epidemiology and management strategies of TBI in LMICs. The objective of this narrative review is to discuss the epidemiology of TBI within LMICs, describe the adherence to Brain Trauma Foundation (BTF) guidelines for the management of severe TBI in LMICs, and document TBI management strategies currently used in LMICs. Articles from January 1, 2009 to September 30, 2021 that included patients with TBI greater than 18 years of age in low-, low middle-, and high middle-income countries were queried in PubMed. Search results demonstrated that TBI in LMICs mostly impacts young males involved in road traffic accidents. Within LMICs there are a myriad of approaches to managing TBI with few randomized controlled trials performed within LMICs to evaluate those interventions. More studies are needed in LMICs to establish the effectiveness and appropriateness of BTF guidelines for managing TBI and to help identify methods for managing TBI that are appropriate in low-resource settings. The problem of limited pre- and post-hospital care is a bigger challenge that needs to be considered while addressing management of TBI in LMICs.

Tantangan dalam Menjaga Cerebral Perfusion Pressure (CPP) yang Aman pada Cedera Otak Traumatik

Cerebral perfusion pressure (CPP) is the net pressure gradient that drives oxygen delivery to cerebral tissue. It is the difference between the mean arterial pressure (MAP) and the intracranial pressure (ICP), CPP = MAP-CVP or CPP =MAP – ICP if ICP&gt;CVP. Cerebral perfusion pressure must be maintained within narrow limits because too litle pressure could cause brain tissue become ischemic, and too much could raise intracranial pressure. The normal range lies between 60 and 80 mmHg, but these values can shift to the left or right depending on individual patient physiology. As CPP is a calculated measure, MAP and ICP must be measured simultaneously, most commonly by invasive means. When brain injury occurs, cerebral capillaries can become “leaky” or more permeable to water. In addition, cerebral blood vessels may dilate in respons to brain tissue injury, hypoxemia, hypercarbia, acidosis, or hypotension. If blood pressure becomes elevated, the increased CPP can lead to increased cerebral blood flow. The recommended goal of CPP per the Brain Trauma Foundation (BTF) guideline is 50-70 mmHg. Targeting high CPP &gt;70 mmHg has not been shown to be beneficial in patient with traumatic brain injury and is associated with an increased risk of acute respiratory distress syndrome (ARDS).

Impact of continuous hypertonic (NaCl 20%) saline solution on renal outcomes after traumatic brain injury (TBI): a post hoc analysis of the COBI trial

BackgroundTo evaluate if the increase in chloride intake during a continuous infusion of 20% hypertonic saline solution (HSS) is associated with an increase in the incidence of acute kidney injury (AKI) compared to standard of care in traumatic brain injury patients.MethodsIn this post hoc analysis of the COBI trial, 370 patients admitted for a moderate-to-severe TBI in the 9 participating ICUs were enrolled. The intervention consisted in a continuous infusion of HSS to maintain a blood sodium level between 150 and 155 mmol/L for at least 48 h. Patients enrolled in the control arm were treated as recommended by the latest Brain Trauma foundation guidelines. The primary outcome of this study was the occurrence of AKI within 28 days after enrollment. AKI was defined by stages 2 or 3 according to KDIGO criteria.ResultsAfter exclusion of missing data, 322 patients were included in this post hoc analysis. The patients randomized in the intervention arm received a significantly higher amount of chloride during the first 4 days (intervention group: 97.3 ± 31.6 g vs. control group: 61.3 ± 38.1 g; p < 0.001) and had higher blood chloride levels at day 4 (117.9 ± 10.7 mmol/L vs. 111.6 ± 9 mmol/L, respectively, p < 0.001). The incidence of AKI was not statistically different between the intervention and the control group (24.5% vs. 28.9%, respectively; p = 0.45).ConclusionsDespite a significant increase in chloride intake, a continuous infusion of HSS was not associated with AKI in moderate-to-severe TBI patients. Our study does not confirm the potentially detrimental effect of chloride load on kidney function in ICU patients.Trial registration: The COBI trial was registered on clinicaltrial.gov (Trial registration number: NCT03143751, date of registration: 8 May 2017).

337 Comparison of Outcomes, Signs, and Symptoms of Traumatic Posterior Fossa Epidural Hematoma (PFEDH) Patients Who Managed Surgically Versus Conservatively: A Systematic Review and Meta-Analysis

Abstract Aim To compare patients with PFEDH who managed surgically versus conservatively in terms of signs and symptoms at admission and outcomes at follow-up. Method This systematic review was performed according to PRISMA guidelines on four databases: PubMed, Scopus, EBSCO, and Cochrane central up to December 20th, 2021. Result Eighteen observational studies including 713 patients were assessed quantitatively. The proportion of patients achieved a Glasgow Outcome Scale (GOS) score of 5 was higher in the conservative group (Odds Ratio [OR] = 3.588, p &amp;lt; 0.001) and odds of mortality were lower in the same group (OR = 0.210, P = 0.010). Surgical groups were more likely to have vomiting (OR = 3.316, P = 0.049), loss of consciousness (LOC) (OR = 4.584, P = 0.039), and bone fractures (cranial or facial) (OR = 3.223, P = 0.045), but less likely to have headache (OR = 0.342, P =0.032) at the admission time. There was higher proportion of males in the surgical group (proportion in surgical = 71%, p &amp;lt; 0.001 versus proportion in conservative = 54%, p &amp;lt; 0.001). Conclusion The initial presentation and overall outcomes of PFEDH patients who managed conservatively usually are better than those who managed surgically. This doesn't indicate that conservative management is used all time, as the treatment option should be in accordance with Brain Trauma Foundation's Guidelines in 2006, that surgical intervention is still the mainstay treatment and conservative management is used upon neurosurgeon's discretion depending on admission neurological status and other many criteria.

Intracranial Pressure Monitoring in Patients With Severe Traumatic Brain Injury: Extension of the Recommendations and the Effect on Outcome by Propensity Score Matching.

Intracranial pressure (ICP) monitoring is recommended for patients with traumatic brain injury (TBI) with a Glasgow Coma Scale (GCS) <9 on admission and revealing space-occupying lesions or swelling on computed tomography. However, previous studies that have evaluated its effect on outcome have shown conflicting results. To study the effect of ICP monitoring on outcome after adjustment of patient's characteristics imbalance and determine the potential benefit on patients with higher GCS that deteriorates early or in the absence of computed tomography results suggesting high ICP. We searched for adult patients with TBI admitted between 1996 and 2020 with a GCS <9 on admission or deterioration from higher scores within 24 hours after TBI. Patients were divided into groups if they fulfilled strict (Brain Trauma Foundation guidelines) or extended criteria (patients who worsened after admission or without space-occupying lesions) for ICP monitoring. Propensity score analyses based on nearest neighbor matching was performed. After matching, we analyzed data from 454 patients and 184 patients who fulfilled strict criteria or extended criteria for ICP monitoring, respectively. A decreased on in-hospital mortality was detected in monitored patients following strict and extended criteria . Those patients with a higher baseline risk of poor outcome showed higher odds of favorable outcome if they were monitored. ICP monitoring in patients with severe TBI within 24 hours after injury following strict and extended criteria was associated with a decreased in-hospital mortality. The identification of patients with a higher risk of an unfavorable outcome might be useful to better select cases that would benefit more from ICP monitoring.

Multicenter and prospective trial of anti-epileptics for early seizure prevention in mild traumatic brain injury with a positive computed tomography scan.

Background: Posttraumatic seizures (PTSs) are a major source of disability after traumatic brain injury (TBI). The Brain Trauma Foundation Guidelines recommend prophylactic anti-epileptics (AEDs) for early PTS in severe TBI, but high-quality evidence is lacking in mild TBI.Methods: To determine the benefit of administering prophylactic AEDs, we performed a prospective and multicenter study evaluating consecutive patients who presented to a Level 1 trauma center from January 2017 to December 2020. We included all patients with mild TBI defined as Glasgow Coma Scale (GCS) 13–15 and a positive head computed tomography (CT). Patients were excluded for previous seizure history, current AED use, or a neurosurgical procedure. Patients were given a prophylactic 7-day course of AEDs on a week-on versus week-off basis and followed with in-person clinic visits, in-hospital evaluation, or a validated phone questionnaire.Results: Four hundred and ninety patients were enrolled, 349 (71.2%) had follow-up, and 139 (39.8%) were given prophylactic AEDs. There was no difference between seizure rates for the prophylactic AED group (0.7%) and those without (2.9%; P = 0.25). Patients who had a PTS were on average older (81.4 years) than patients without a seizure (64.8 years; P = 0.02). Seizure rate increased linearly by age groups: <60 years old (0%); 60–70 years old (1.7%); 70–80 years old (2.3%); and >80 years old (4.6%).Conclusion: Prophylactic AEDs did not provide a benefit for PTS reduction in mild TBI patients with a positive CT head scan.

The Effect of Antiseizure Medication Administration on Mortality and Early Posttraumatic Seizures in Critically Ill Older Adults with Traumatic Brain Injury.

Traumatic brain injury (TBI) is a major cause of morbidity and mortality in the United States. Older adults represent an understudied and growing TBI population. Current Brain Trauma Foundation guidelines support prophylactic antiseizure medication (ASM) administration to reduce the risk of early posttraumatic seizures (within 7days of injury) in patients with severe TBI. Whether ASM decreases mortality or early seizure risk in this population remains unclear. This study addresses the knowledge gap regarding the impact of ASM administration on the risk of seizure or mortality after TBI in patients more than 65years of age. This retrospective cohort study used a publicly available data set from the Medical Information Mart for Intensive Care-III from the Massachusetts Institute of Technology. Our cohort included patients 65years or older with a primary exposure of early ASM administration with TBI resulting in an intensive care unit (ICU) admission in a level I trauma center from 2001 to 2012. A double-robust inverse propensity scale weighted model on the basis of proportional hazard and logistic regression models was created to assess the association between ASM administration and risk of death within 7days of admission to the ICU. Secondary outcomes included 30-day mortality and 1-year mortality, early posttraumatic seizures, ICU length of stay, and hospital length of stay. Of 1145 patients 65years or older with TBI admitted to an ICU, 783 (68.4%) received ASM within the first 24h. Patients meeting inclusion criteria were predominantly white (83.8%) and were male (52.3%), with a median (interquartile range) age of 81 (74-86) years. TBI severity, classified by Glasgow Coma Score, was predominantly mild (71.2%), followed by moderate (16.8%) and severe (11.3%). Patients who received ASM were less likely to have died at 7days (adjusted death hazard ratio [HR] = 0.48 [95% confidence interval {CI} 0.28-0.88], P = 0.005), at 30days (adjusted HR 0.67 [95% CI 0.45-0.99], P = 0.045), and at 1year (adjusted HR 0.72 [95% CI 0.54-0.97], P = 0.029). Groups were not different in regard to seizure (adjusted seizure odds ratio 1.18 [95% CI 0.61-2.26]) compared with those who did not receive ASM. Early ASM administration was associated with reduced mortality at 7days, 30days, and 1year but did not decrease the risk of early seizures among older adults who presented with TBI at an ICU. This benefit was observed in mild, moderate, and severe TBI assessed by Glasgow Coma Score on presentation among patients 65years old and older and suggests broader recommendations for the use of ASM in older adults who present with TBI of any severity at an ICU.

Treatment Trends and Inpatient Mortality in Isolated Severe Traumatic Brain Injury Using the National Trauma Data Bank

Severe traumatic brain injury (TBI) remains a leading cause of morbidity and mortality. Despite recommendations from the Brain Trauma Foundation, there is wide variability in treatment paradigms for severe TBI. We aimed to elucidate the variability of treatment, particularly neurosurgical procedures and how it affects mortality. Adult patients (<65 years old) with a severe isolated TBI who were treated at an American College of Surgeons level I trauma center were identified in the National Trauma Data Bank for the years 2007-2016. International Classification of Diseases, Ninth Revision procedure codes were used to identify primary treatment approaches: intracranial pressure (ICP) monitoring and cranial surgery (craniotomy/craniectomy). Among 25,327 patients with severe isolated TBI, 14.0% underwent ICP and 18.0% underwent cranial surgery. ICP monitoring reduced the odds of mortality (odds ratio 0.89, 95% confidence interval [0.81, 0.98]), but not the extent of cranial surgery (odds ratio 0.71, 95% confidence interval [0.65, 0.77]). Brain Trauma Foundation guidelines recommend placement of an ICP monitor for severe TBI; however, only 14% of patients with isolated, severe TBI underwent ICP monitoring in 2007-2016. ICP monitoring and cranial surgery decrease the odds of inpatient mortality in patients with severe TBI.

Decompressive Craniectomy Practice following Traumatic Brain Injury in Comparison with Randomized Trials: Harmonized, Multi-Center Cohort Studies in Europe, the United Kingdom, and Australia

High quality evidence shows decompressive craniectomy (DC) following traumatic brain injury (TBI) may improve survival but increase the number of severely disabled survivors. Contemporary international practice is unknown. We sought to describe international use of DC, and the alignment with evidence and clinical practice guidelines, by analyzing the harmonized Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) and Australia-Europe NeuroTrauma Effectiveness Research in Traumatic Brain Injury (OzENTER-TBI) core study datasets, which include patients admitted to intensive care units (ICUs) in Europe, the United Kingdom, and Australia between 2015 and 2017. Outcomes of interest were treatment with DC relative to clinical trial evidence and the Brain Trauma Foundation guidelines. Of 2336 people admitted to ICUs following TBI, DC was performed in 320 (13.7%): in 64/1422 (4.5%) patients with diffuse TBI and 195/640 (30.5%) patients with traumatic mass lesions. Secondary DC (for treatment of intracranial hypertension) was used infrequently in patients who met enrollment criteria of the two randomized clinical trials informing the guidelines-specifically, in 11/124 (8.9%) of those matching Decompressive Craniectomy in Diffuse Traumatic Brain Injury trial (DECRA) enrollment, and in 30/224 (13.4%) of those matching Randomised Evaluation of Surgery with Craniectomy for Uncontrollable Elevation of Intracranial Pressure (RESCUEicp). Of patients who underwent DC, 258/320 (80.6%) were ineligible for either trial: 149/320 (46.6%) underwent primary DC, 62/320 (19.4%) were outside the trials' age criteria, and 126/320 (39.4%) did not develop intracranial hypertension refractory to non-operative therapies prior to DC. Secondary DC was used infrequently in patients in whom it had been shown to increase survival with severe disability, indicating alignment between contemporaneous evidence and practice. However, most patients who underwent DC were ineligible for the key trials; whether they benefited from DC remains unknown.

Randomized Evaluation of Surgery in Elderly with Traumatic Acute SubDural Hematoma (RESET-ASDH trial): study protocol for a pragmatic randomized controlled trial with multicenter parallel group design

BackgroundThe rapidly increasing number of elderly (≥ 65 years old) with TBI is accompanied by substantial medical and economic consequences. An ASDH is the most common injury in elderly with TBI and the surgical versus conservative treatment of this patient group remains an important clinical dilemma. Current BTF guidelines are not based on high-quality evidence and compliance is low, allowing for large international treatment variation. The RESET-ASDH trial is an international multicenter RCT on the (cost-)effectiveness of early neurosurgical hematoma evacuation versus initial conservative treatment in elderly with a t-ASDHMethodsIn total, 300 patients will be recruited from 17 Belgian and Dutch trauma centers. Patients ≥ 65 years with at first presentation a GCS ≥ 9 and a t-ASDH > 10 mm or a t-ASDH < 10 mm and a midline shift > 5 mm, or a GCS < 9 with a traumatic ASDH < 10 mm and a midline shift < 5 mm without extracranial explanation for the comatose state, for whom clinical equipoise exists will be randomized to early surgical hematoma evacuation or initial conservative management with the possibility of delayed secondary surgery. When possible, patients or their legal representatives will be asked for consent before inclusion. When obtaining patient or proxy consent is impossible within the therapeutic time window, patients are enrolled using the deferred consent procedure. Medical-ethical approval was obtained in the Netherlands and Belgium. The choice of neurosurgical techniques will be left to the discretion of the neurosurgeon. Patients will be analyzed according to an intention-to-treat design. The primary endpoint will be functional outcome on the GOS-E after 1 year. Patient recruitment starts in 2022 with the exact timing depending on the current COVID-19 crisis and is expected to end in 2024.DiscussionThe study results will be implemented after publication and presented on international conferences. Depending on the trial results, the current Brain Trauma Foundation guidelines will either be substantiated by high-quality evidence or will have to be altered.Trial registrationNederlands Trial Register (NTR), Trial NL9012. ClinicalTrials.gov, Trial NCT04648436.

178 Multicenter Prospective Trial of Anti-Epileptics for Early Seizure Prevention in Mild Traumatic Brain Injury with a Positive CT Scan

INTRODUCTION: Post-traumatic seizures (PTS) are a major source of disability after traumatic brain injury (TBI). The Brain Trauma Foundation Guidelines recommend prophylactic anti-epileptics (AEDs) for early PTS in severe TBI, but high-quality evidence is lacking in mild or moderate TBI. METHODS: We performed a prospective, multicenter study evaluating consecutive patients who presented to a level 1 trauma center from January 2017 through December 2020. Patients were excluded for previous seizure history, current AED use, or a neurosurgical procedure. Patients were given a 7-day course of prophylactic AEDs on a week-by-week basis and followed with in-person clinic visits, in-hospital evaluation, or a validated phone questionnaire. RESULTS: 490 patients were enrolled, 349 (71.2%) had follow-up, and 139 (39.8%) were given prophylactic AEDs. There was no difference between seizure rates for the prophylactic AED group (0.7%) and those without (2.9%; p = 0.25). Patients who had a PTS were on average older (81.4 years) than patients without a seizure (64.8 years; p = 0.02). Seizure rate increased linearly by age groups: &lt;60 years-old (0%); 60-70 years-old (1.7%); 70-80 years-old (2.3%); and &gt;80 years-old (4.6%). CONCLUSION: Prophylactic AEDs did not provide a benefit for PTS reduction in mild TBI patients with a positive CT head scan. Future studies should be appropriately powered for the small effect size of AEDs in mild TBI and evaluate the effects between age and prophylactic AED use.

Evolution and Impact of the Brain Trauma Foundation Guidelines.

The Brain Trauma Foundation (BTF) Guidelines for the Management of Severe Head Injury were the first clinical practice guidelines published by any surgical specialty. These guidelines have earned a reputation for rigor and have been widely adopted around the world. Implementation of these guidelines has been associated with a 50% reduction in mortality and reduced costs of patient care. Over their 25-yr history the traumatic brain injury (TBI) guidelines have been expanded, refined, and made increasingly more rigorous in conjunction with new clinical evidence and evolving methodologic standards. Here, we discuss the history and accomplishments of BTF guidelines for TBI as well as their limitations. We also discuss planned changes to future TBI guidelines intended to increase their utility and positive impact in an evolving medical landscape. Perhaps the greatest limitation of TBI guidelines now is the lack of high-quality clinical research as well as novel diagnostics and treatments with which to generate substantially new recommendations.

Decompressive Craniectomy After Traumatic Brain Injury: Incorporating Patient Preferences into Decision-Making

Decompressive craniectomy (DC) is highly effective in relieving intracranial hypertension; however, patient selection, intracranial pressure threshold, timing, and long-term functional outcomes are all subject to controversy. Recently, recommendations were made to update the Brain Trauma Foundation guidelines in regards to the use of DC based on the DECRA (Decompressive Craniectomy in Patients with Severe Traumatic Brain Injury) and RESCUEicp (Trial of Decompressive Craniectomy for Traumatic Intracranial Hypertension) clinical trials. Neither the updated recommendations, nor the aforementioned trials, provide a method in incorporating individualized patient or surrogate decision-maker preferences into decision making. In this manuscript, we aimed to redress the gap of not incorporating patient preferences in such value-laden decision making as in the case of DC for refractory post-traumatic intracranial hypertension. We proposed a decision aid based on principles of Decision Theory, and specifically of Expected Utility Theory. We showed that 1) early secondary DC as studied in DECRA, and based on the 1-year outcome data, is associated with decreased expected utility for all possible preference rankings of outcomes; and 2) recommending a late secondary DC versus tier-3 medical therapy, as studied in RESCUEicp, should be informed by individualized patient preference rankings of outcomes as elicited via shared decision-making. The 1-year outcomes from DECRA and RESCUEicp have served as the basis for updated guidelines. However, unaided interpretation of trial data may not be adequate for individualized decision-making; we suggest that the latter can be significantly supported by decision aids such as the one described here and based on expected utility theory.

Factors associated with receipt of intracranial pressure monitoring in older adults with traumatic brain injury

BackgroundThe Brain Trauma Foundation (BTF) Guidelines for the Management of Severe Traumatic Brain Injury (TBI) include intracranial pressure monitoring (ICPM), yet very little is known about ICPM in older adults....