Abstract 4: The Effect of Prehospital Hypoxia and Hypotension on Outcome in Major Traumatic Brain Injury: A Deadly Combination

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Daniel W Spaite ◽  
Uwe Stolz ◽  
Bentley J Bobrow ◽  
Vatsal Chikani ◽  
Duane Sherrill ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Trauma Center ◽  
Treatment Guidelines ◽  
Controlled Study ◽  
Negative Effect ◽  
Severe Tbi ◽  
The Impact ◽  
The Relationship

BACKGROUND: Hypoxia (HOx) or hypotension (HT) occurring during the EMS management of major traumatic brain injury-TBI reduces survival. However, little is known about the impact of both HOx and HT, occurring together, on outcome. Only a handful of reports have studied the combination of prehospital HOx/HT in TBI and the largest of these only had 14 cases with both. Objectives: To evaluate the associations between mortality and prehospital HOx and HT, both separately and in combination. METHODS: All moderate/severe TBI cases (CDC Barell Matrix Type-1) in the Excellence in Prehospital Injury Care (EPIC) TBI Study (a statewide, before/after controlled study of the impact of implementing the EMS TBI Treatment Guidelines-NIH/NINDS: 1R01NS071049) from 1/1/08-6/30/12 were evaluated [exclusions: age<10; death before ED arrival; EMS O2 saturation-“sat”<11%; EMS SBP less than 40 or greater than 200; missing sat (5.4% of cases) or SBP (3.1% of cases)]. The relationship between mortality and HOx (sat <90) and/or HT (SBP<90) was assessed with crude and adjusted odds ratios (cOR, aOR) using multivariable logistic regression, controlling for important confounders (see Figure) and accounting for clustering by Trauma Center. RESULTS: 9194 cases were included [Median age: 46 (IQR: 26-65); Male: 68.1%]. 8109 (88.2%) had no HOx/HT, 535 (5.8%) had HOx only, 419 (4.6%) had HT only, and 131 (1.4%) had both HOx/HT. The Figure shows the cORs and aORs for death. CONCLUSION: In this large analysis of major TBI, prehospital HOx and HT were associated with significantly increased mortality. However, the combination of HT and HOx together had a profoundly-negative effect on survival even after controlling for significant confounders. In fact, the aOR for death in patients with both HOx/HT was more than 3 times greater than for those with HOx or HT alone. Since the TBI Guidelines emphasize the prevention and treatment of HOx and HT, their implementation has the potential to significantly impact outcome.

Early Prognostication after Traumatic Brain Injury: Specific Validation of the IMPACT Prognostic Calculator in a Level 1 Trauma Center

2019 ◽  
Vol 80 (06) ◽  
pp. 423-429
Author(s):  
Anna Jung ◽  
Felix Arlt ◽  
Maciej Rosolowski ◽  
Jürgen Meixensberger
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Trauma Center ◽  
Roc Analysis ◽  
Time Frame ◽  
Extended Model ◽  
Severe Tbi ◽  
Level 1 ◽  
The Impact ◽  
Level 1 Trauma Center

AbstractThe present study evaluated the usefulness of the IMPACT prognostic calculator (IPC) for patients receiving acute neurointensive care at a level 1 trauma center in Germany. A total of 139 patients with traumatic brain injury (TBI) were assessed. One day after trauma, the extended model of the IPC was found to provide the most valid prediction of 6-month mortality/unfavorable outcome. Different time frames within the first day could be determined by analyzing mild, moderate, and severe TBI cohorts. The CORE + CT model at time frame Z2 (<6 h from the point of first documentation) for mild TBI exhibited the highest values in the receiver operating characteristic (ROC) analysis (area under the curve [AUC], 0.9; sensitivity, 1; specificity, 0.7). For patients with moderate head injury at time frame Z2/3 (<6–12 h from point of first documentation), the extended model fit best. For patients with severe TBI, the extended model at time frame Z6 (48–72 h from point of first documentation) best predicted 6-month mortality and unfavorable outcome (ROC analysis: AUC, 0.542/0.445; sensitivity, 0.167/0.364; specificity, 0.575/0.444). Center-specific validation demonstrated the validity of the IPC in the early phase after TBI. These findings support the usefulness of the IPC for predicting the prognosis of patients with TBI. However, further prospective validation using a larger TBI cohort is needed.

scholarly journals Introduction of severe traumatic brain injury care protocol is associated with reduction in mortality for pediatric patients: a case study of Children’s Healthcare of Atlanta’s neurotrauma program

2018 ◽  
Vol 22 (2) ◽  
pp. 165-172 ◽  
Author(s):  
Andrew Reisner ◽  
Joshua J. Chern ◽  
Karen Walson ◽  
Natalie Tillman ◽  
Toni Petrillo-Albarano ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Treatment Guidelines ◽  
Guideline Implementation ◽  
Treatment Protocol ◽  
Hospital Length ◽  
Hospital Length Of Stay ◽  
Care Protocol ◽  
Severe Tbi ◽  
The Impact

OBJECTIVEEvidence shows mixed efficacy of applying guidelines for the treatment of traumatic brain injury (TBI) in children. A multidisciplinary team at a children’s health system standardized intensive care unit–based TBI care using guidelines and best practices. The authors sought to investigate the impact of guideline implementation on outcomes.METHODSA multidisciplinary group developed a TBI care protocol based on published TBI treatment guidelines and consensus, which was implemented in March 2011. The authors retrospectively compared preimplementation outcomes (May 2009 to March 2011) and postimplementation outcomes (April 2011 to March 2014) among patients < 18 years of age admitted with severe TBI (Glasgow Coma Scale score ≤ 8) and potential survivability who underwent intracranial pressure (ICP) monitoring. Measures included mortality, hospital length of stay (LOS), ventilator LOS, critical ICP elevation time (percentage or total time that ICP was > 40 mm Hg), and survivor functionality at discharge (measured by the WeeFIM score). Data were analyzed using Student t-tests.RESULTSA total of 71 and 121 patients were included pre- and postimplementation, respectively. Mortality (32% vs 19%; p < 0.001) and length of critical ICP elevation (> 20 mm Hg; 26.3% vs 15%; p = 0.001) decreased after protocol implementation. WeeFIM discharge scores were not statistically different (57.6 vs 58.9; p = 0.9). Hospital LOS (median 19.6 days; p = 0.68) and ventilator LOS (median 10 days; p = 0.24) were unchanged.CONCLUSIONSA multidisciplinary effort to develop, disseminate, and implement an evidence-based TBI treatment protocol at a children’s hospital was associated with improved outcomes, including survival and reduced time of ICP elevation. This type of ICP-based protocol can serve as a guide for other institutions looking to reduce practice disparity in the treatment of severe TBI.

Abstract 230: Differential Effects of Prehospital Hypotension and Injury Severity in Isolated vs. Multisystem Major Traumatic Brain Injury

Circulation ◽  
2018 ◽  
Vol 138 (Suppl_2) ◽  
Author(s):  
Daniel W Spaite ◽  
Chengcheng Hu ◽  
Bentley J Bobrow ◽  
Bruce J Barnhart ◽  
Vatsal Chikani ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Injury Severity ◽  
Treatment Effectiveness ◽  
Guideline Implementation ◽  
Body Region ◽  
Head Region ◽  
Differential Effects ◽  
Severe Tbi

Background: In hospital-based studies, hypotension (HT, SBP <90) is more likely to occur in multisystem traumatic brain injury (MTBI) than isolated (ITBI). However, there are few EMS studies on this issue. Hypothesis: Prehospital HT is associated with differential effects in MTBI and ITBI and these effects are influenced by the severity of primary brain injury. Methods: Inclusion: TBI cases in the EPIC Study (NIH 1R01NS071049) before TBI guideline implementation (1/07-3/14). ITBI: Major TBI cases (CDC Barell Matrix Type 1) that had no injury with ICD9-based Regional Severity Score [RSS (AIS equivalent)] ≥3 in any other body region. MTBI: Type 1 TBI plus at least one non-head region injury with RSS ≥3. Results: Included were 13,435 cases [Excl: age <10 (5.9%), missing data (6.2%)]. 10,374 (77.2%) were ITBI, 3061 (22.8%) MTBI. Mortality: ITBI: 7.7% (797/10,374), MTBI: 19.2% (587/3061, p<0.0001). Prehospital HT occurred 3.5 times more often in MTBI (14.8%, 453/3061 vs 4.2%, 437/10,374; p<0.0001). Among HT cases, 40.8% (185/453) with MTBI died vs 30.9% with ITBI (135/437; p<0.0001). In the hypotensive moderate/severe TBI cohort (RSS-Head 3/4), MTBI mortality was 2.4 times higher (17.2%, 40/232) than ITBI (7.1%, 17/240, p = 0.001). However, in the hypotensive very/extremely severe TBI group (RSS-Head 5/6), mortality was almost identical in MTBI (73.4%, 141/192) and ITBI (72.1%, 116/161, p = 0.864). Conclusion: Among major TBI patients with prehospital HT, those with MTBI were much more likely to die than those with ITBI. However, this association varied dramatically with TBI severity. In mod/severe TBI cases with HT, MTBI mortality was 2.4 times higher than in ITBI. In contrast, in very/extremely severe TBI with HT, there was no identifiable mortality difference. Thus, in cases with substantial potential to survive the primary brain injury (mod/severe), outcome is markedly worse in patients with multisystem injuries. However, in very/extremely severe TBI, non-head region injuries have no apparent association with mortality. This may be because the TBI is the primary factor leading to death in these cases. The main EPIC study is evaluating whether this severity-based difference in “effect” has implications for TBI guideline treatment effectiveness.

Correlating the Blood Alcohol Concentration with Outcome after Traumatic Brain Injury: Too Much Is Not a Bad Thing

2011 ◽  
Vol 77 (10) ◽  
pp. 1416-1419 ◽  
Author(s):  
Cherisse Berry ◽  
Eric J. Ley ◽  
Daniel R. Margulies ◽  
James Mirocha ◽  
Marko Bukur ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Los Angeles ◽  
Linear Trend ◽  
Blood Alcohol Concentration ◽  
Alcohol Concentration ◽  
Multivariable Logistic Regression Analysis ◽  
Blood Alcohol ◽  
Severe Tbi ◽  
The Relationship

Although recent evidence suggests a beneficial effect of alcohol for patients with traumatic brain injury (TBI), the level of alcohol that confers the protective effect is unknown. Our objective was to investigate the relationship between admission blood alcohol concentration (BAC) and outcomes in patients with isolated moderate to severe TBI. From 2005 to 2009, the Los Angeles County Trauma Database was queried for all patients ≥14 years of age with isolated moderate to severe TBI and admission serum alcohol levels. Patients were then stratified into four levels based on admission BAC: None (0 mg/dL), low (0-100 mg/dL), moderate (100-230 mg/dL), and high (≥230 mg/dL). Demographics, patient characteristics, and outcomes were compared across levels. In evaluating 3794 patients, the mortality rate decreased with increasing BAC levels (linear trend P < 0.0001). In determining the relationship between BAC and mortality, multivariable logistic regression analysis demonstrated a high BAC level was significantly protective (adjusted odds ratio 0.55; 95% confidence interval: 0.38-0.8; P = 0.002). In the largest study to date, a high (≥230 mg/dL) admission BAC was independently associated with improved survival in patients with isolated moderate to severe TBI. Additional research is warranted to investigate the potential therapeutic implications.

Behavioural Profiles and Injury Severity Following Childhood Traumatic Brain Injury

2007 ◽  
Vol 8 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Suzanne L. Barker-Collo
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Hospital Stay ◽  
Child Behavior Checklist ◽  
Injury Severity ◽  
Attention Problems ◽  
Normal Limits ◽  
Orthopaedic Injury ◽  
Severe Tbi ◽  
The Impact

AbstractTraumatic brain injury (TBI) is a leading cause of death and morbidity in children and can result in cognitive, behavioural, social and emotional difficulties that may impact quality of life. This study examined the impact of mild, moderate, and severe childhood TBI, when compared to severe orthopaedic injury, on behaviour as measured by the Child Behavior Checklist (CBCL) in a sample of 74 children with TBI and 13 with orthopaedic injury aged 4 to 13 years at the time of injury. Correlational analyses revealed that within the TBI sample increased anxiety/depression and somatisation were related to increased age at the time of injury and shorter inpatient hospital stay. Increased age was also related to increased parental reports of attention problems; while increased hospital stay was related to increased withdrawal and thought problems. Symptomatology was within normal limits for all groups, approaching the borderline clinical range in the moderate TBI group for somatic symptoms and in the severe TBI group for thought and attention problems. Those with severe TBI had more thought and attention problems, and to a lesser extent social problems, than those with mild or moderate TBI; while those with moderate TBI had the highest levels of somatic and anxious–depressed symptoms. The only scale where performance seemed to increase in relation to injury severity was the attention problems scale. It is suggested that the findings for those with moderate TBI reflect increased awareness of one's own vulnerability/mortality, with the implication that issues such as grief, loss, and mortality may need to be addressed therapeutically.

scholarly journals Early rehabilitation intervention is associated with significant positive functional outcomes in traumatic brain injury: a retrospective analysis

2021 ◽  
Author(s):  
Siddharth Rai ◽  
Mallikarjun Gunjiganvi ◽  
Awale Rupali Bhalachandra ◽  
Harleen Uppal
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Functional Outcome ◽  
Retrospective Analysis ◽  
Trauma Center ◽  
Public Health Problem ◽  
Early Rehabilitation ◽  
Functional Improvement ◽  
Ethic Committee Approval ◽  
The Impact

Background: Traumatic brain injury (TBI) is a global public health problem affecting adversely health care system. While acute trauma care has been documented to improve outcomes, the impact of early rehabilitation on outcome is not well documented especially in the developing world like ours. Predicting functional outcome from admission variables helps in intervention development, and appropriate fund allocation for TBI treatment. Therefore, we accepted a challenge to do a retrospective study on TBI patients admitted in our newly established and resource limited trauma center. The aim of the study was to assess the effect of early rehabilitation on TBI patients on functional improvement and to prognosticate the improvement from early admission variables.Methods: Study was conducted at Apex Trauma Center, SGPGIMS, Lucknow analysis of prospectively maintained data. Retrospective analysis of records of patients, admitted within 48 hrs of moderate to severe injury, was done after Institute Ethic Committee approval. Statistical analysis used was regression analysis and multivariate analysis was done between possible risk factors and FIM gain.Results: There was significant FIM score improvement from admission to discharge (p<0.001). Factors associated with a higher FIM gain were admission FIM motor and cognitive scores, GCS score on admission and length of hospital stay.Conclusions: Our study strongly suggests that a dedicated rehabilitation programme, designed according to the functional needs of TBI patient, helps in improved functional outcome and recovery.

scholarly journals 5 Years Mortality of Severe Traumatic Brain Injury during the Establishment of Closed System Neurocritical Care Unit in a Resource Constrained Developing Country

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
SYED SHAHZAD HUSSAIN ◽  
USMAN AHAMD KAMBOH ◽  
ASIF RAZA ◽  
HUSNAIN RAZA ◽  
RABIA RAZZAQ ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Severe Traumatic Brain Injury ◽  
Closed System ◽  
Neurocritical Care ◽  
Patient Centered ◽  
Severe Tbi ◽  
A Prospective Study ◽  
Age Range ◽  
The Impact

Background & Objectives: Severe traumatic brain injury is one of the leading causes of mortality and morbidity.Efficient management of severe traumatic brain injury demands a specialty driven focused intensive care. We developed our model of closed ICU driven by Neurosurgical Neurointensivist and the corollary to thiscommitment is a TBI patient centered Neurocritical care with the capacity and capability to deal with most of the neurological illnesses.Materials & Methods: A prospective study was conducted to find out the impact of the establishment of closed system of neurocritical care on 5 year mortality of severe TBI. Total 1288 patients met the inclusion criteria, which were enrolled. Tabulation was done for gender, age range, Glasgow outcome scale and mortality.Results: It was observed that mortality reduced from 47% to 35% over a span of five years. The most common age range was 30-40 years, which is the most productive group of any population. Bed sore incidence is always on rise in any ICU. After the implementation of SOPs based management and increase in nursing staff theincidence of bedsore also showed a detrimental pattern from 35 % to 19%.Conclusion: Neurocritical care unit is proven to be an integral part of any neurosurgical unit and this closed system of NCC unit provide best SOP based care with significant reduction in mortality of patients with STBI.

scholarly journals Predicting outcome in patients with moderate to severe traumatic brain injury using electroencephalography

Critical Care ◽  
2019 ◽  
Vol 23 (1) ◽  
Author(s):  
Marjolein E. Haveman ◽  
Michel J. A. M. Van Putten ◽  
Harold W. Hom ◽  
Carin J. Eertman-Meyer ◽  
Albertus Beishuizen ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Random Forest ◽  
Outcome Prediction ◽  
Training Set ◽  
Arterial Blood ◽  
Continuous Eeg ◽  
Severe Tbi ◽  
Validation Set ◽  
The Impact

Abstract Background Better outcome prediction could assist in reliable quantification and classification of traumatic brain injury (TBI) severity to support clinical decision-making. We developed a multifactorial model combining quantitative electroencephalography (qEEG) measurements and clinically relevant parameters as proof of concept for outcome prediction of patients with moderate to severe TBI. Methods Continuous EEG measurements were performed during the first 7 days of ICU admission. Patient outcome at 12 months was dichotomized based on the Extended Glasgow Outcome Score (GOSE) as poor (GOSE 1–2) or good (GOSE 3–8). Twenty-three qEEG features were extracted. Prediction models were created using a Random Forest classifier based on qEEG features, age, and mean arterial blood pressure (MAP) at 24, 48, 72, and 96 h after TBI and combinations of two time intervals. After optimization of the models, we added parameters from the International Mission for Prognosis And Clinical Trial Design (IMPACT) predictor, existing of clinical, CT, and laboratory parameters at admission. Furthermore, we compared our best models to the online IMPACT predictor. Results Fifty-seven patients with moderate to severe TBI were included and divided into a training set (n = 38) and a validation set (n = 19). Our best model included eight qEEG parameters and MAP at 72 and 96 h after TBI, age, and nine other IMPACT parameters. This model had high predictive ability for poor outcome on both the training set using leave-one-out (area under the receiver operating characteristic curve (AUC) = 0.94, specificity 100%, sensitivity 75%) and validation set (AUC = 0.81, specificity 75%, sensitivity 100%). The IMPACT predictor independently predicted both groups with an AUC of 0.74 (specificity 81%, sensitivity 65%) and 0.84 (sensitivity 88%, specificity 73%), respectively. Conclusions Our study shows the potential of multifactorial Random Forest models using qEEG parameters to predict outcome in patients with moderate to severe TBI.

How We Die: The Impact of Nonneurologic Organ Dysfunction after Severe Traumatic Brain Injury

2008 ◽  
Vol 74 (9) ◽  
pp. 866-872 ◽  
Author(s):  
Clinton D. Kemp ◽  
J. Chad Johnson ◽  
William P. Riordan ◽  
Bryan A. Cotton
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Organ Dysfunction ◽  
Severe Traumatic Brain Injury ◽  
Contributing Factors ◽  
Injury Score ◽  
Respiratory Dysfunction ◽  
Severe Tbi ◽  
The Impact ◽  
Abbreviated Injury Score

Although nonneurologic organ dysfunction (NNOD) has been shown to significantly affect mortality in subarachnoid hemorrhage, the contribution of NNOD to mortality after severe traumatic brain injury (TBI) has yet to be defined. We hypothesized that NNOD has a significant impact on mortality after severe TBI. The trauma registry was queried for all patients admitted between January 2004 and December 2004 who died during their initial hospitalization after severe TBI (head Abbreviated Injury Score 3 or greater). Cause of death and contributing factors to mortality were determined by an attending trauma surgeon from the medical record. The data were analyzed using both Fisher's exact and Wilcoxon rank sum. One hundred thirty-five patients met inclusion criteria. Sixty-seven per cent were males, 83 per cent were white, and the mean age was 38.5 years. Mean length of stay was 2.9 days. Fifty-four patients (40%) had isolated TBI (chest Abbreviated Injury Score = 0, abdominal Abbreviated Injury Score = 0). Of the 81 deaths attributed to a single cause, 48 (60%) patients died from nonsurvivable TBI or brain death, whereas 33 (40%) died of a nonneurologic cause. Cardiovascular and respiratory dysfunction (excluding pneumonia) contributed to mortality in 51.1 per cent and 34.1 per cent of patients, respectively. NNOD contributes to approximately two-thirds of all deaths after severe TBI. These complications occur early and are seen even among those with isolated head injuries. These findings demonstrate the impact of the extracranial manifestations of severe TBI on overall mortality and highlight potential areas for future intervention and research.

scholarly journals Age-related carbon dioxide reactivity in children after moderate and severe traumatic brain injury

2016 ◽  
Vol 18 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Tensing Maa ◽  
Keith Owen Yeates ◽  
Melissa Moore-Clingenpeel ◽  
Nicole F. O'Brien
Keyword(s):  
Carbon Dioxide ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Minute Ventilation ◽  
Age Groups ◽  
Age Related ◽  
Negative Effect ◽  
Severe Tbi ◽  
Carbon Dioxide Reactivity ◽  
Artery Flow

OBJECTIVE The objective of this study is to assess carbon dioxide reactivity (CO2R) in children following traumatic brain injury (TBI). METHODS This prospective observational study enrolled children younger than 18 years old following moderate and severe TBI. Thirty-eight mechanically ventilated children had daily CO2R testing performed by measuring changes in their bilateral middle cerebral artery flow velocities using transcranial Doppler ultrasonography (TCD) after a transient increase in minute ventilation. The cohort was divided into 3 age groups: younger than 2 years (n = 12); 2 to 5 years old (n = 9); and older than 5 years (n = 17). RESULTS Children younger than 2 years old had a lower mean CO2R over time. The 2–5-year-old age group had higher mean CO2R than younger patients (p = 0.01), and the highest CO2R values compared with either of the other age groups (vs > 5 years old, p = 0.046; vs < 2 years old, p = 0.002). Having a lower minimum CO2R had a statistically significant negative effect on outcome at discharge (p = 0.0413). Impaired CO2R beyond Postinjury Day 4 trended toward having an effect on outcome at discharge (p = 0.0855). CONCLUSIONS Abnormal CO2R is prevalent in children following TBI, and the degree of impairment varies by age. No clinical or laboratory parameters were identified as risk factors for impaired CO2R. Lower minimum CO2R values are associated with worse outcome at discharge.

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