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Tulchinsky I, Buckley R, Meek R, Lim JJY. Potentially avoidable emergency department transfers from residential aged care facilities for possible post-fall intracranial injury. Emerg Med Australas 2023; 35:41-47. [PMID: 35879249 PMCID: PMC10087771 DOI: 10.1111/1742-6723.14051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/27/2022] [Accepted: 07/03/2022] [Indexed: 01/19/2023]
Abstract
OBJECTIVES To determine the percentage of potentially preventable residential aged care facility (RACF) to ED transfers for potential intracranial injury post-fall. To describe rates of CT brain (CTB) performance, intracranial trauma-related findings, neurosurgical intervention, and patient outcome. METHODS Patient lists were obtained from the hospital electronic medical record, screened for eligibility and data abstracted. Potentially preventable was defined as: (1) RACF return from ED within 24 h, regardless of CTB performance or finding; (2) ED management could reasonably have been provided at the RACF. Comparisons between those with CTB performed or not, including external signs of craniofacial trauma, anticoagulant medication use, baseline cognitive impairment and presence of an advanced care directive (ACD) were made. RESULTS Of 784 patients, 415 (53%) were classified as potentially avoidable. Of these, 314 (76%) had a CTB. Of all 784 patients, 538 (69%) had a CTB performed. CTB was more likely with presence of external signs of craniofacial trauma (26% [95% CI 23-30] vs 20% [95% CI 15-25], P < 0.001) and anticoagulant use (59% [95% CI 55-63] vs 42% [95% CI 37-49], P < 0.001) but not for presence of cognitive impairment or ACD. From the 538 CTBs, 31 (6%) patients had acute intracranial trauma-related findings with all having conservative management. None of the 11 (1%) deaths were in the potentially preventable subgroup. CONCLUSION Just over half of the RACF to ED transfers were classified as 'potentially avoidable'.
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Affiliation(s)
- Igor Tulchinsky
- Department of Emergency Medicine, Monash Health, Melbourne, Victoria, Australia
| | - Richard Buckley
- Department of Emergency Medicine, Monash Health, Melbourne, Victoria, Australia
| | - Robert Meek
- Department of Emergency Medicine, Monash Health, Melbourne, Victoria, Australia.,School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia
| | - Joel Jun Yi Lim
- School of Clinical Sciences at Monash Health, Monash University, Melbourne, Victoria, Australia
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Coffeng SM, Foks KA, van den Brand CL, Jellema K, Dippel DWJ, Jacobs B, van der Naalt J. Evaluation of Clinical Characteristics and CT Decision Rules in Elderly Patients with Minor Head Injury: A Prospective Multicenter Cohort Study. J Clin Med 2023; 12:jcm12030982. [PMID: 36769631 PMCID: PMC9917997 DOI: 10.3390/jcm12030982] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/10/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
Age is variably described as a minor or major risk factor for traumatic intracranial lesions after head injury. However, at present, no specific CT decision rule is available for elderly patients with minor head injury (MHI). The aims of this prospective multicenter cohort study were to assess the performance of existing CT decision rules for elderly MHI patients and to compare the clinical and CT characteristics of elderly patients with the younger MHI population. Thirty-day mortality between two age groups (cutoff ≥ 60 years), along with clinical and CT characteristics, was evaluated with four CT decision rules: the National Institute for Health and Care Excellence (NICE) guideline, the Canadian CT Head Rule (CCHR), the New Orleans Criteria (NOC), and the CT Head Injury Patients (CHIP) rule. Of the 5517 MHI patients included, 2310 were aged ≥ 60 years. Elderly patients experienced loss of consciousness (17% vs. 32%) and posttraumatic amnesia (23% vs. 31%) less often, but intracranial lesions (13% vs. 10%), neurological deterioration (1.8% vs. 0.2%), and 30-day mortality (2.0% vs. 0.1%) were more frequent than in younger patients (all p < 0.001). Elderly patients with age as their only risk factor showed intracranial lesions in 5% (NOC and CHIP) to 8% (CCHR and NICE) of cases. The sensitivity of decision rules in the elderly patients was 60% (CCHR) to 97% (NOC) when age was excluded as a risk factor. Current risk factors considered when evaluating elderly patients show lower sensitivity to identify intracranial abnormalities, despite more frequent intracranial lesions. Until age-specific CT decision rules are developed, it is advisable to scan every elderly patient with an MHI.
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Affiliation(s)
- Sophie M. Coffeng
- Department of Emergency Medicine, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
- Correspondence:
| | - Kelly A. Foks
- Department of Neurology, Erasmus MC University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Crispijn L. van den Brand
- Department of Emergency Medicine, Erasmus MC University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Korné Jellema
- Department of Neurology, Haaglanden Medical Center, 2512 VA The Hague, The Netherlands
| | - Diederik W. J. Dippel
- Department of Neurology, Erasmus MC University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands
| | - Bram Jacobs
- Department of Neurology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Joukje van der Naalt
- Department of Neurology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
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53
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H Hopman J, A L Santing J, A Foks K, J Verheul R, M van der Linden C, L van den Brand C, Jellema K. Biomarker S100B in plasma a screening tool for mild traumatic brain injury in an emergency department. Brain Inj 2023; 37:47-53. [PMID: 36397287 DOI: 10.1080/02699052.2022.2145360] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION A computerized tomography (CT) scan is an effective test for detecting traumatic intracranial findings after mild traumatic brain injury (mTBI). However, a head CT is costly, and can only be performed in a hospital. OBJECTIVE To determine if the addition of plasma S100B to clinical guidelines could lead to a more selective scanning strategy without compromising safety. METHODS We conducted a single center prospective cohort study at the emergency department. Patients (≥16 years) who received head CT and had a blood draw were included. The primary outcome was the accuracy of plasma S100B to predict the presence of any traumatic intracranial lesion on head CT. RESULTS We included 495 patients, out of the 74 patients who had traumatic intracranial lesions, 5 patients had a plasma S100B level below the cutoff value of 0.105 ug/L. For the detection of traumatic intracranial injury, S100B had a sensitivity of 0.932 , a specificity of 0.157, a negative predictive value of 0.930, and a positive predictive value of 0.163. CONCLUSIONS Among patients undergoing guideline-based CT scan for mTBI, the use of S100B, would results in a further decrease (14.8%) of CT scans but at a cost of missed injury, without clinical consequence, on CT.
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Affiliation(s)
- Joëlla H Hopman
- Department of Emergency Medicine, Haaglanden Medical Center, The Hague, The Netherlands
| | | | - Kelly A Foks
- Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Rolf J Verheul
- Department of Clinical Chemistry and Laboratory Medicine, Haaglanden Medical Center, The Hague
| | | | | | - Korné Jellema
- Department of Neurology, Haaglanden Medical Center, The Hague, The Netherlands
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54
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Turcato G, Zaboli A, Bonora A, Ricci G, Zannoni M, Maccagnani A, Zorzi E, Pfeifer N, Brigo F. Analysis of Clinical and Laboratory Risk Factors of Post-Traumatic Intracranial Hemorrhage in Patients on Direct Oral Anticoagulants with Mild Traumatic Brain Injury: An Observational Multicenter Cohort. J Emerg Med 2023; 64:1-13. [PMID: 36658008 DOI: 10.1016/j.jemermed.2022.09.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/25/2022] [Accepted: 09/04/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND Assessing the risk of intracranial hemorrhage (ICH) in patients with a mild traumatic brain injury (MTBI) who are taking direct oral anticoagulants (DOACs) is challenging. Currently, extensive use of computed tomography (CT) is routine in the emergency department (ED). OBJECTIVE This study aims to investigate whether the clinical and laboratory characteristics presented at the ED evaluation can also estimate the risk of post-traumatic ICH in DOAC-treated patients with MTBI. METHODS A retrospective observational study was conducted in three EDs in Italy from January 1, 2016 to March 15, 2020. All patients treated with DOACs who were evaluated for an MTBI in the ED were enrolled. The primary outcome of the study was the presence of post-traumatic ICH in the head CT performed in the ED. RESULTS Of 930 patients on DOACs with MTBI who were enrolled, 6.8% (63 of 930) had a post-traumatic ICH and 1.5% (14 of 930) were treated with surgery or died as a result of the ICH. None of the laboratory factors were associated with an increased risk of ICH. On multivariate analysis, previous neurosurgical intervention, major trauma dynamic, post-traumatic loss of consciousness, post-traumatic amnesia, Glasgow Coma Scale score of 14, and evidence of trauma above the clavicles were associated with a higher risk of post-traumatic ICH. The net clinical benefit provided by risk factor assessment appears superior to the strategy of performing CT on all DOAC-treated patients. CONCLUSIONS Assessment of the clinical characteristics presented at ED admission can help identify DOAC-treated patients with MTBI who are at risk of ICH.
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Affiliation(s)
- Gianni Turcato
- Emergency Department, Hospital of Merano (SABES-ASDAA), Merano, Italy
| | - Arian Zaboli
- Emergency Department, Hospital of Merano (SABES-ASDAA), Merano, Italy
| | - Antonio Bonora
- Department of Emergency Medicine, Policlinico Univeristario di Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Giorgio Ricci
- Department of Emergency Medicine, Hospital Civile Maggiore, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Massimo Zannoni
- Department of Emergency Medicine, Hospital Civile Maggiore, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Antonio Maccagnani
- Department of Emergency Medicine, Policlinico Univeristario di Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Elisabetta Zorzi
- Department of Cardiology and Intensive Care Cardiology, Girolamo Fracastoro Hospital of San Bonifacio, Azienda Ospedaliera Scaligera, San Bonifacio, Verona, Italy
| | - Norbert Pfeifer
- Emergency Department, Hospital of Merano (SABES-ASDAA), Merano, Italy
| | - Francesco Brigo
- Department of Neurology, Hospital of Merano (SABES-ASDAA), Merano, Italy
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55
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Isokuortti H, Iverson GL, Posti JP, Berghem K, Kotilainen AK, Luoto TM. Risk for intracranial hemorrhage in individuals after mild traumatic brain injury who are taking serotonergic antidepressants. Front Neurol 2022; 13:952188. [PMID: 36570453 PMCID: PMC9768034 DOI: 10.3389/fneur.2022.952188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
Background Serotonergic antidepressants may predispose to bleeding, but little is known of the risk for traumatic intracranial bleeding. Methods This was a prospective case-control study of 218 patients with mild traumatic brain injuries (TBI) who were treated at a Finnish tertiary trauma hospital. Injury-related information and clinical findings were prospectively collected in the emergency department. Detailed pre-injury health history was collected from electronic medical records. Information on the use of serotonergic antidepressants was attained from the Finnish national prescription registry. All head CT scans were reviewed by a neuroradiologist based on the Common Data Elements. Cases were patients with traumatic intracranial hemorrhage on head CT. Controls were patients from the same cohort, but without traumatic intracranial lesions on CT. The proportion with traumatic intracranial bleeding for patients on serotonergic antidepressant medication was compared to the proportion for patients not on serotonergic medication. Results The study cohort consisted of 24 cases with traumatic intracranial bleeding and 194 injured controls. The median age of the sample was 70 years (interquartile range = 50-83). One fifth (21.6%) of all the patients were taking a serotonergic antidepressant. Of the patients on an antidepressant, 10.6% (5/47) had an acute hemorrhagic lesion compared to 11.1% (19/171) of those who were not on an antidepressant (p = 0.927). In the regression analysis, traumatic intracranial hemorrhage was not associated with antidepressant use. Conclusion Serotonergic antidepressant use was not associated with an increased risk of traumatic intracranial hemorrhage after a mild TBI. The patients in this relatively small cohort were mostly middle-aged and older adults. These factors limit the generalizability of the results in younger patients with mild TBI.
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Affiliation(s)
- Harri Isokuortti
- Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland,*Correspondence: Harri Isokuortti
| | - Grant L. Iverson
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, United States,Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and the Schoen Adams Research Institute at Spaulding Rehabilitation, Charlestown, MA, United States
| | - Jussi P. Posti
- Neurocenter, Department of Neurosurgery, and Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Ksenia Berghem
- Medical Imaging Centre, Department of Radiology, Tampere University Hospital, Tampere, Finland
| | - Anna-Kerttu Kotilainen
- Department of Surgery, Tampere University Hospital and Tampere University, Tampere, Finland
| | - Teemu M. Luoto
- Department of Neurosurgery, Tampere University Hospital and Tampere University, Tampere, Finland
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56
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Gardner RC, Puccio AM, Korley FK, Wang KKW, Diaz-Arrastia R, Okonkwo DO, Puffer RC, Yuh EL, Yue JK, Sun X, Taylor SR, Mukherjee P, Jain S, Manley GT, Ferguson AR, Gaudette E, Shankar GC, Keene D, Madden C, Martin A, McCrea M, Merchant R, Mukherjee P, Ngwenya LB, Robertson C, Temkin N, Vassar M, Yue JK, Zafonte R. Effects of age and time since injury on traumatic brain injury blood biomarkers: a TRACK-TBI study. Brain Commun 2022; 5:fcac316. [PMID: 36642999 PMCID: PMC9832515 DOI: 10.1093/braincomms/fcac316] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/07/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022] Open
Abstract
Older adults have the highest incidence of traumatic brain injury globally. Accurate blood-based biomarkers are needed to assist with diagnosis of patients across the spectrum of age and time post-injury. Several reports have suggested lower accuracy for blood-based biomarkers in older adults, and there is a paucity of data beyond day-1 post-injury. Our aims were to investigate age-related differences in diagnostic accuracy and 2-week evolution of four leading candidate blood-based traumatic brain injury biomarkers-plasma glial fibrillary acidic protein, ubiquitin carboxy-terminal hydrolase L1, S100 calcium binding protein B and neuron-specific enolase-among participants in the 18-site prospective cohort study Transforming Research And Clinical Knowledge in Traumatic Brain Injury. Day-1 biomarker data were available for 2602 participants including 2151 patients with traumatic brain injury, 242 orthopedic trauma controls and 209 healthy controls. Participants were stratified into 3 age categories (young: 17-39 years, middle-aged: 40-64 years, older: 65-90 years). We investigated age-stratified biomarker levels and biomarker discriminative abilities across three diagnostic groups: head CT-positive/negative; traumatic brain injury/orthopedic controls; and traumatic brain injury/healthy controls. The difference in day-1 glial fibrillary acidic protein, ubiquitin carboxy-terminal hydrolase L1 and neuron-specific enolase levels across most diagnostic groups was significantly smaller for older versus younger adults, resulting in a narrower range within which a traumatic brain injury diagnosis may be discriminated in older adults. Despite this, day-1 glial fibrillary acidic protein had good to excellent performance across all age-categories for discriminating all three diagnostic groups (area under the curve 0.84-0.96; lower limit of 95% confidence intervals all >0.78). Day-1 S100 calcium-binding protein B and ubiquitin carboxy-terminal hydrolase L1 showed good discrimination of CT-positive versus negative only among adults under age 40 years within 6 hours of injury. Longitudinal blood-based biomarker data were available for 522 hospitalized patients with traumatic brain injury and 24 hospitalized orthopaedic controls. Glial fibrillary acidic protein levels maintained good to excellent discrimination across diagnostic groups until day 3 post-injury irrespective of age, until day 5 post-injury among middle-aged or younger patients and until week 2 post-injury among young patients only. In conclusion, the blood-based glial fibrillary acidic protein assay tested here has good to excellent performance across all age-categories for discriminating key traumatic brain injury diagnostic groups to at least 3 days post-injury in this trauma centre cohort. The addition of a blood-based diagnostic to the evaluation of traumatic brain injury, including geriatric traumatic brain injury, has potential to streamline diagnosis.
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Affiliation(s)
- Raquel C Gardner
- Correspondence to: Raquel C. Gardner, MD Sheba Medical Center, Derech Sheba 2 Ramat Gan, Israel 52621 E-mail:
| | - Ava M Puccio
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Frederick K Korley
- Department of Emergency Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kevin K W Wang
- Departments of Emergency Medicine, Psychiatry, and Neuroscience, McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA,Brain Rehabilitation Research Center (BRRC), Malcom Randall VA Medical Center, North Florida/South Georgia Veterans Health System, 1601 SW Archer Rd., 32608, USA
| | - Ramon Diaz-Arrastia
- Department of Neurology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - David O Okonkwo
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Ross C Puffer
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA,Department of Neurological Surgery, Mayo Clinic, Rochester, MN 55901, USA
| | - Esther L Yuh
- Department of Radiology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - John K Yue
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Xiaoying Sun
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, San Diego, CA 92161, USA
| | - Sabrina R Taylor
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Pratik Mukherjee
- Department of Radiology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Sonia Jain
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California San Diego, San Diego, CA 92161, USA
| | - Geoffrey T Manley
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
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Vestlund S, Tryggmo S, Vedin T, Larsson PA, Edelhamre M. Comparison of the predictive value of two international guidelines for safe discharge of patients with mild traumatic brain injuries and associated intracranial pathology. Eur J Trauma Emerg Surg 2022; 48:4489-4497. [PMID: 34859266 PMCID: PMC9712145 DOI: 10.1007/s00068-021-01842-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/14/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE To determine and compare the sensitivity, specificity, and proportion of patients eligible for discharge by the Brain Injury Guidelines and the Mild TBI Risk Score in patients with mild traumatic brain injury and concomitant intracranial injury. METHODS Retrospective review of the medical records of adult patients with traumatic intracranial injuries and an initial Glasgow Coma Scale score of 14-15, who sought care at Helsingborg Hospital between 2014/01/01 and 2019/12/31. Both guidelines were theoretically applied. The sensitivity, specificity, and percentage of the cohort that theoretically could have been discharged by either guideline were calculated. The outcome was defined as death, in-hospital intervention, admission to the intensive care unit, requiring emergency intubation due to intracranial injury, decreased consciousness, or seizure within 30 days of presentation. RESULTS Of the 538 patients included, 8 (1.5%) and 10 (1.9%) were eligible for discharge according to the Brain Injury Guidelines and the Mild TBI Risk Score, respectively. Both guidelines had a sensitivity of 100%. The Brain Injury Guidelines had a specificity of 2.3% and the Mild TBI Risk Score had a specificity of 2.9%. CONCLUSION There was no difference between the two guidelines in sensitivity, specificity, or proportion of the cohort eligible for discharge. Specificity and proportion of cohort eligible for discharge were lower than each guideline's original study. At present, neither guideline can be recommended for implementation in the current or similar settings.
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Affiliation(s)
- Sebastian Vestlund
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden.
| | - Sebastian Tryggmo
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Tomas Vedin
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | | | - Marcus Edelhamre
- Department of Clinical Sciences, Faculty of Medicine, Lund University, Lund, Sweden
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58
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Iverson GL, Minkkinen M, Karr JE, Berghem K, Zetterberg H, Blennow K, Posti JP, Luoto TM. Examining four blood biomarkers for the detection of acute intracranial abnormalities following mild traumatic brain injury in older adults. Front Neurol 2022; 13:960741. [PMID: 36484020 PMCID: PMC9723459 DOI: 10.3389/fneur.2022.960741] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/20/2022] [Indexed: 01/25/2023] Open
Abstract
Blood-based biomarkers have been increasingly studied for diagnostic and prognostic purposes in patients with mild traumatic brain injury (MTBI). Biomarker levels in blood have been shown to vary throughout age groups. Our aim was to study four blood biomarkers, glial fibrillary acidic protein (GFAP), ubiquitin C-terminal hydrolase-L1 (UCH-L1), neurofilament light (NF-L), and total tau (t-tau), in older adult patients with MTBI. The study sample was collected in the emergency department in Tampere University Hospital, Finland, between November 2015 and November 2016. All consecutive adult patients with head injury were eligible for inclusion. Serum samples were collected from the enrolled patients, which were frozen and later sent for biomarker analyses. Patients aged 60 years or older with MTBI, head computed tomography (CT) imaging, and available biomarker levels were eligible for this study. A total of 83 patients (mean age = 79.0, SD = 9.58, range = 60-100; 41.0% men) were included in the analysis. GFAP was the only biomarker to show statistically significant differentiation between patients with and without acute head CT abnormalities [U(83) = 280, p < 0.001, r = 0.44; area under the curve (AUC) = 0.79, 95% CI = 0.67-0.91]. The median UCH-L1 values were modestly greater in the abnormal head CT group vs. normal head CT group [U (83) = 492, p = 0.065, r = 0.20; AUC = 0.63, 95% CI = 0.49-0.77]. Older age was associated with biomarker levels in the normal head CT group, with the most prominent age associations being with NF-L (r = 0.56) and GFAP (r = 0.54). The results support the use of GFAP in detecting abnormal head CT findings in older adults with MTBIs. However, small sample sizes run the risk for producing non-replicable findings that may not generalize to the population and do not translate well to clinical use. Further studies should consider the potential effect of age on biomarker levels when establishing clinical cut-off values for detecting head CT abnormalities.
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Affiliation(s)
- Grant L. Iverson
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, United States,Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and the Schoen Adams Research Institute at Spaulding Rehabilitation, Charlestown, MA, United States,Home Base, A Red Sox Foundation and Massachusetts General Hospital Program, Boston, MA, United States
| | - Mira Minkkinen
- Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Justin E. Karr
- Department of Psychology, University of Kentucky, Lexington, KY, United States
| | - Ksenia Berghem
- Medical Imaging Centre, Department of Radiology, Tampere University Hospital, Tampere, Finland
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden,UK Dementia Research Institute at University College London, London, United Kingdom,Department of Neurodegenerative Disease, University College London Queen Square Institute of Neurology, London, United Kingdom,Hong Kong Center for Neurodegenerative Diseases, Hong Kong, Hong Kong SAR, China
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Jussi P. Posti
- Neurocenter, Department of Neurosurgery, Turku University Hospital and University of Turku, Turku, Finland,Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Teemu M. Luoto
- Department of Neurosurgery, Tampere University Hospital and Tampere University, Tampere, Finland,*Correspondence: Teemu M. Luoto
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59
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van den Brand CL, Foks KA, Lingsma HF, van der Naalt J, Jacobs B, de Jong E, den Boogert HF, Sir Ö, Patka P, Polinder S, Gaakeer MI, Schutte CE, Jie KE, Visee HF, Hunink MG, Reijners E, Braaksma M, Schoonman GG, Steyerberg EW, Dippel DW, Jellema K. Update of the CHIP (CT in Head Injury Patients) decision rule for patients with minor head injury based on a multicenter consecutive case series. Injury 2022; 53:2979-2987. [PMID: 35831208 DOI: 10.1016/j.injury.2022.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To update the existing CHIP (CT in Head Injury Patients) decision rule for detection of (intra)cranial findings in adult patients following minor head injury (MHI). METHODS The study is a prospective multicenter cohort study in the Netherlands. Consecutive MHI patients of 16 years and older were included. Primary outcome was any (intra)cranial traumatic finding on computed tomography (CT). Secondary outcomes were any potential neurosurgical lesion and neurosurgical intervention. The CHIP model was validated and subsequently updated and revised. Diagnostic performance was assessed by calculating the c-statistic. RESULTS Among 4557 included patients 3742 received a CT (82%). In 383 patients (8.4%) a traumatic finding was present on CT. A potential neurosurgical lesion was found in 73 patients (1.6%) with 26 (0.6%) patients that actually had neurosurgery or died as a result of traumatic brain injury. The original CHIP underestimated the risk of traumatic (intra)cranial findings in low-predicted-risk groups, while in high-predicted-risk groups the risk was overestimated. The c-statistic of the original CHIP model was 0.72 (95% CI 0.69-0.74) and it would have missed two potential neurosurgical lesions and one patient that underwent neurosurgery. The updated model performed similar to the original model regarding traumatic (intra)cranial findings (c-statistic 0.77 95% CI 0.74-0.79, after crossvalidation c-statistic 0.73). The updated CHIP had the same CT rate as the original CHIP (75%) and a similar sensitivity (92 versus 93%) and specificity (both 27%) for any traumatic (intra)cranial finding. However, the updated CHIP would not have missed any (potential) neurosurgical lesions and had a higher sensitivity for (potential) neurosurgical lesions or death as a result of traumatic brain injury (100% versus 96%). CONCLUSIONS Use of the updated CHIP decision rule is a good alternative to current decision rules for patients with MHI. In contrast to the original CHIP the update identified all patients with (potential) neurosurgical lesions without increasing CT rate.
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Affiliation(s)
- Crispijn L van den Brand
- Department of Emergency Medicine, Haaglanden Medical Centre, PO Box 432, 2501 CK The Hague, the Netherlands; Department of Emergency Medicine, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands.
| | - Kelly A Foks
- Department of Public Health, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands; Department of Neurology, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Hester F Lingsma
- Department of Public Health, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Joukje van der Naalt
- Department of Neurology, University of Groningen, University Medical Centre Groningen, PO Box 30001, 9700 RB Groningen, the Netherlands
| | - Bram Jacobs
- Department of Neurology, University of Groningen, University Medical Centre Groningen, PO Box 30001, 9700 RB Groningen, the Netherlands
| | - Eline de Jong
- Department of Emergency Medicine, Haaglanden Medical Centre, PO Box 432, 2501 CK The Hague, the Netherlands
| | - Hugo F den Boogert
- Department of Neurosurgery, Radboud University Medical Centre, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Özcan Sir
- Department of Emergency Medicine, Radboud University Medical Centre, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Peter Patka
- Department of Emergency Medicine, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Suzanne Polinder
- Department of Public Health, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Menno I Gaakeer
- Department of Emergency Medicine, ADRZ, PO Box 15, 4460 AA Goes, the Netherlands
| | - Charlotte E Schutte
- Department of Emergency Medicine, ADRZ, PO Box 15, 4460 AA Goes, the Netherlands
| | - Kim E Jie
- Department of Emergency Medicine, Jeroen Bosch Hospital, PO 90153, 5200 ME 's-Hertogenbosch, the Netherlands
| | - Huib F Visee
- Department of Neurology, Jeroen Bosch Hospital, PO 90153, 5200 ME 's-Hertogenbosch, the Netherlands
| | - Myriam Gm Hunink
- Department of Radiology, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands; Department of Epidemiology, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands; Centre for Health Decision Sciences, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Eef Reijners
- formerly Department of Emergency Medicine, Elisabeth-Tweesteden Hospital, PO Box 90151, 5000 LC Tilburg, the Netherlands
| | - Meriam Braaksma
- Department of Neurology, Bravis Hospital, PO Box 999, 4624 VT Bergen op Zoom, the Netherlands
| | - Guus G Schoonman
- Department of Neurology, Elisabeth-Tweesteden Hospital, PO Box 90151, 5000 LC Tilburg, the Netherlands
| | - Ewout W Steyerberg
- Department of Public Health, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands; Department of Biomedical Data Sciences, Leiden University Medical Centre, PO Box 9600, 2300 RC Leiden, the Netherlands
| | - Diederik Wj Dippel
- Department of Neurology, Erasmus MC University Medical Centre Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Korné Jellema
- Department of Neurology, Haaglanden Medical Centre, PO Box 432, 2501 CK The Hague, the Netherlands
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Fletcher-Sandersjöö A, Tatter C, Yang L, Pontén E, Boman M, Lassarén P, Forsberg S, Grönlund I, Tidehag V, Rubenson-Wahlin R, Strömmer L, Westberg K, Ängeby K, Djärv T, Lundblad O, Bartek J, Thelin EP. Stockholm score of lesion detection on computed tomography following mild traumatic brain injury (SELECT-TBI): study protocol for a multicentre, retrospective, observational cohort study. BMJ Open 2022; 12:e060679. [PMID: 36581962 PMCID: PMC9438191 DOI: 10.1136/bmjopen-2021-060679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Mild traumatic brain injury (mTBI) is one of the most common reasons for emergency department (ED) visits. A portion of patients with mTBI will develop an intracranial lesion that might require medical or surgical intervention. In these patients, swift diagnosis and management is paramount. Several guidelines have been developed to help direct patients with mTBI for head CT scanning, but they lack specificity, do not consider the interactions between risk factors and do not provide an individualised estimate of intracranial lesion risk. The aim of this study is to create a model that estimates individualised intracranial lesion risks in patients with mTBI who present to the ED. METHODS AND ANALYSIS This will be a retrospective cohort study conducted at ED hospitals in Stockholm, Sweden. Eligible patients are adults (≥15 years) with mTBI who presented to the ED within 24 hours of injury and performed a CT scan. The primary outcome will be a traumatic lesion on head CT. The secondary outcomes will be any clinically significant lesion, defined as an intracranial finding that led to neurosurgical intervention, hospital admission ≥48 hours due to TBI or death due to TBI. Machine-learning models will be applied to create scores predicting the primary and secondary outcomes. An estimated 20 000 patients will be included. ETHICS AND DISSEMINATION The study has been approved by the Swedish Ethical Review Authority (Dnr: 2020-05728). The research findings will be disseminated through peer-reviewed scientific publications and presentations at international conferences. TRIAL REGISTRATION NUMBER NCT04995068.
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Affiliation(s)
- Alexander Fletcher-Sandersjöö
- Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Charles Tatter
- Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Li Yang
- Department of Emergency Medicine, Södersjukhuset, Stockholm, Sweden
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
| | - Emeli Pontén
- Department of Emergency Medicine, Capio S:t Görans Hospital, Stockholm, Sweden
| | - Magnus Boman
- Department of Software and Computer Systems, KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Learning and Informatics, Karolinska Institutet, Stockholm, Sweden
| | - Philipp Lassarén
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Sune Forsberg
- Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ingrid Grönlund
- Department of Emergency Medicine, Danderyds Hospital, Stockholm, Sweden
| | - Viktor Tidehag
- Department of Emergency Medicine, Danderyds Hospital, Stockholm, Sweden
| | - Rebecka Rubenson-Wahlin
- Department of Emergency Medicine, Södersjukhuset, Stockholm, Sweden
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
| | - Lovisa Strömmer
- Department of Surgery, Capio S:t Görans Hospital, Stockholm, Sweden
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
| | - Karin Westberg
- Department of Emergency Medicine, Danderyds Hospital, Stockholm, Sweden
| | - Kristian Ängeby
- Department of Emergency Medicine, Södersjukhuset, Stockholm, Sweden
- Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden
| | - Therese Djärv
- Department of Emergency Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Olof Lundblad
- Department of Emergency Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Jiri Bartek
- Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
| | - Eric Peter Thelin
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Below C, Brianti IC, Parreira JG, Lucarelli-Antunes PDES, Saade N, Golin M, Pivetta LGA, Veiga JCE, Assef JC. Clinical assessment of head injuries in motorcyclists involved in traffic accidents: A prospective, observational study. Rev Col Bras Cir 2022; 49:e20223340. [PMID: 35894390 PMCID: PMC10578845 DOI: 10.1590/0100-6991e-20223340-en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/09/2022] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE to review the clinical assessment of head injuries in motorcyclists involved in traffic accidents. METHOD prospective observational study, including adult motorcyclists involved in traffic accidents in a period of 12 months. Patients sustaining signs of intoxication were excluded. A modification of the Canadian Head CT Rules was used to indicate computed tomography (CT). Patients not undergoing CT were followed by phone calls for three months. Collected variables were compared between the group sustaining head injuries and the others. We used chi-square, Fisher, and Student's t for statistical analysis, considering p<0.05 as significant. RESULTS we included 208 patients, 99.0% were wearing helmets. Seventeen sustained signs of intoxication and were excluded. Ninety (47.1%) underwent CT and 12 (6.3%) sustained head injuries. Head injuries were significantly associated with Glasgow Coma Scale<15 (52.3% vs. 2.8% - p<0,001) and a positive physical exam (17.1% vs. zero - p<0,05). Four (2.1%) patients with intracranial mass lesions needed surgical interventions. None helmet-wearing patients admitted with GCS=15 and normal physical examination sustained head injuries. CONCLUSION Head CT is not necessary for helmet-wearing motorcyclists admitted with GCS=15 and normal physical examination.
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Affiliation(s)
- Cristiano Below
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | - Isabela Campos Brianti
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | - José Gustavo Parreira
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | - Pedro DE Souza Lucarelli-Antunes
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | - Nelson Saade
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | - Murilo Golin
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | | | - José Carlos Esteves Veiga
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
| | - Jose Cesar Assef
- - Irmandade da Santa Casa de Misericórdia de São Paulo, Cirurgia - São Paulo - SP - Brasil
- - Faculdade de Ciências Médicas da Santa Casa de São Paulo, Cirurgia - São Paulo - SP - Brasil
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Raja AS, Rodriguez RM, Gupta M, Isaacs ED, Kornblith LZ, Prabhakar A, Saillant N, Schmit PJ, Wei SH, Mower WR. Developing a decision instrument to guide abdominal-pelvic imaging of blunt trauma patients: Methodology and protocol of the NEXUS abdominal-pelvic imaging study. PLoS One 2022; 17:e0271070. [PMID: 35877687 PMCID: PMC9312398 DOI: 10.1371/journal.pone.0271070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/22/2022] [Indexed: 11/19/2022] Open
Abstract
Although computed tomography (CT) of the abdomen and pelvis (A/P) can provide crucial information for managing blunt trauma patients, liberal and indiscriminant imaging is expensive, can delay critical interventions, and unnecessarily exposes patients to ionizing radiation. Currently no definitive recommendations exist detailing which adult blunt trauma patients should receive A/P CT imaging and which patients may safely forego CT. Considerable benefit could be realized by identifying clinical criteria that reliably classify the risk of abdominal and pelvic injuries in blunt trauma patients. Patients identified as “very low risk” by such criteria would be free of significant injury, receive no benefit from imaging and therefore could be safely spared the expense and radiation exposure associated with A/P CT. The goal of this two-phase nationwide multicenter observational study is to derive and validate the use of clinical criteria to stratify the risk of injuries to the abdomen and pelvis among adult blunt trauma patients. We estimate that nation-wide implementation of a rigorously developed decision instrument could safely reduce CT imaging of adult blunt trauma patients by more than 20%, and reduce annual radiographic charges by $180 million, while simultaneously expediting trauma care and decreasing radiation exposure with its attendant risk of radiation-induced malignancy. Prior to enrollment we convened an expert panel of trauma surgeons, radiologists and emergency medicine physicians to develop a consensus definition for clinically significant abdominal and pelvic injury. In the first derivation phase of the study, we will document the presence or absence of preselected candidate criteria, as well as the presence or absence of significant abdominal or pelvic injuries in a cohort of blunt trauma victims. Using recursive partitioning, we will examine combinations of these criteria to identify an optimal “very low risk” subset that identifies injuries with a sensitivity exceeding 98%, excludes injury with a negative predictive value (NPV) greater than 98%, and retains the highest possible specificity and potential to decrease imaging. In Phase 2 of the study we will validate the performance of a decision rule based on these criteria among a new cohort of patients to ensure that the criteria retain high sensitivity, NPV and optimal specificity. Validating the sensitivity of the decision instrument with high statistical precision requires evaluations on 317 blunt trauma patients who have significant abdominal-pelvic injuries, which will in turn require evaluations on approximately 6,340 blunt trauma patients. We will estimate potential reductions in CT imaging by counting the number of abdominal-pelvic CT scans performed on “very low risk” patients. Reductions in charges and radiation exposure will be determined by respectively summing radiographic charges and lifetime decreases in radiation morbidity and mortality for all “very low risk” cases.
Trial registration: Clinicaltrials.gov trial registration number: NCT04937868.
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Affiliation(s)
- Ali S. Raja
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Robert M. Rodriguez
- Department of Emergency Medicine, San Francisco General Hospital, UCSF School of Medicine, San Francisco, California, United States of America
| | - Malkeet Gupta
- Department of Emergency Medicine, Ronald Reagan UCLA Medical Center, UCLA Geffen School of Medicine, Los Angeles, California, United States of America
- Antelope Valley Hospital Emergency Department, Lancaster, California, United States of America
| | - Eric D. Isaacs
- Department of Emergency Medicine, San Francisco General Hospital, UCSF School of Medicine, San Francisco, California, United States of America
| | - Lucy Z. Kornblith
- Department of Surgery, San Francisco General Hospital, UCSF School of Medicine, San Francisco, California, United States of America
| | - Anand Prabhakar
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Noelle Saillant
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Paul J. Schmit
- UCLA Department of Surgery, Ronald Reagan UCLA Medical Center, UCLA Geffen School of Medicine, Los Angeles, California, United States of America
| | - Sindy H. Wei
- UCLA Department of Radiological Sciences, Ronald Reagan UCLA Medical Center, Los Angeles, California, United States of America
| | - William R. Mower
- UCLA Department of Emergency Medicine, Ronald Reagan UCLA Medical Center, Los Angeles, California, United States of America
- * E-mail:
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Heo S, Ha J, Jung W, Yoo S, Song Y, Kim T, Cha WC. Decision effect of a deep-learning model to assist a head computed tomography order for pediatric traumatic brain injury. Sci Rep 2022; 12:12454. [PMID: 35864281 PMCID: PMC9304372 DOI: 10.1038/s41598-022-16313-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/07/2022] [Indexed: 11/09/2022] Open
Abstract
The study aims to measure the effectiveness of an AI-based traumatic intracranial hemorrhage prediction model in the decisions of emergency physicians regarding ordering head computed tomography (CT) scans. We developed a deep-learning model for predicting traumatic intracranial hemorrhages (DEEPTICH) using a national trauma registry with 1.8 million cases. For simulation, 24 cases were selected from previous emergency department cases. For each case, physicians made decisions on ordering a head CT twice: initially without the DEEPTICH assistance, and subsequently with the DEEPTICH assistance. Of the 528 responses from 22 participants, 201 initial decisions were different from the DEEPTICH recommendations. Of these 201 initial decisions, 94 were changed after DEEPTICH assistance (46.8%). For the cases in which CT was initially not ordered, 71.4% of the decisions were changed (p < 0.001), and for the cases in which CT was initially ordered, 37.2% (p < 0.001) of the decisions were changed after DEEPTICH assistance. When using DEEPTICH, 46 (11.6%) unnecessary CTs were avoided (p < 0.001) and 10 (11.4%) traumatic intracranial hemorrhages (ICHs) that would have been otherwise missed were found (p = 0.039). We found that emergency physicians were likely to accept AI based on how they perceived its safety.
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Affiliation(s)
- Sejin Heo
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.,Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Juhyung Ha
- Department of Computer Science, Indiana University Bloomington, Bloomington, IN, USA
| | - Weon Jung
- Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Suyoung Yoo
- Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Yeejun Song
- Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Taerim Kim
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.,Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea
| | - Won Chul Cha
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea. .,Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Seoul, Republic of Korea.
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Sabouri M, Vahidian M, Sourani A, Mahdavi SB, Tehrani DS, Shafiei E. Efficacy and safety of fibrinogen administration in acute post-traumatic hypofibrinogenemia in isolated severe traumatic brain injury: A randomized clinical trial. J Clin Neurosci 2022; 101:204-211. [DOI: 10.1016/j.jocn.2022.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/07/2022] [Accepted: 05/15/2022] [Indexed: 10/18/2022]
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Din M, Gurbuz S, Akbal E, Dogan S, Durak M, Yildirim I, Tuncer T. Exemplar deep and hand-modeled features based automated and accurate cerebral hemorrhage classification method. Med Eng Phys 2022; 105:103819. [DOI: 10.1016/j.medengphy.2022.103819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 11/17/2022]
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Barrett JW, Williams J, Griggs J, Skene S, Lyon R. What are the demographic and clinical differences between those older adults with traumatic brain injury who receive a neurosurgical intervention to those that do not? A systematic literature review with narrative synthesis. Brain Inj 2022; 36:841-849. [PMID: 35767716 DOI: 10.1080/02699052.2022.2093398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
OBJECTIVES This review aimed to identify the demographic and clinical differences between those older adults admitted directly under neurosurgical care and those that were not, and whether EMS clinicians could use these differences to improve patient triage. METHODS The authors searched for papers that included older adults who had suffered a TBI and were either admitted directly under neurosurgical care or were not. Titles and abstracts were screened, shortlisting potentially eligible papers before performing a full-text review. The Newcastle-Ottawa Scale was used to assess the risk of bias. RESULTS A total of nine studies were eligible for inclusion. A high abbreviated injury score head, Marshall score or subdural hematoma greater than 10 mm were associated with neurosurgical care. There were few differences between those patients who did and did not receive neurosurgical intervention. CONCLUSIONS Absence of guidelines and clinician bias means that differences between those treated aggressively and conservatively observed in the literature are fraught with bias. Further work is required to understand which patients would benefit from an escalation of care and whether EMS can identify these patients so they are transported directly to a hospital with the appropriate services on-site.
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Affiliation(s)
- Jack W Barrett
- Department of Research and Development, South East Coast Ambulance Service NHS Foundation Trust, Nexus House, Crawley, UK.,Faculty of Health and Medical Sciences, University of Surrey, Surrey, UK
| | - Julia Williams
- Department of Research and Development, South East Coast Ambulance Service NHS Foundation Trust, Nexus House, Crawley, UK.,School of Health and Social Work, University of Hertfordshire, Hatfield, Hertfordshire, UK
| | - Joanna Griggs
- Faculty of Health and Medical Sciences, University of Surrey, Surrey, UK.,Department of Research and Innovation, Air Ambulance Kent, Surrey, Sussex, Surrey, UK
| | - Simon Skene
- Faculty of Health and Medical Sciences, University of Surrey, Surrey, UK
| | - Richard Lyon
- Faculty of Health and Medical Sciences, University of Surrey, Surrey, UK.,Department of Research and Innovation, Air Ambulance Kent, Surrey, Sussex, Surrey, UK
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Antiplatelet therapy contributes to a higher risk of traumatic intracranial hemorrhage compared to anticoagulation therapy in ground-level falls: a single-center retrospective study. Eur J Trauma Emerg Surg 2022; 48:4909-4917. [PMID: 35732809 DOI: 10.1007/s00068-022-02016-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/23/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) is a common injury and constitutes up to 3% of emergency department (ED) visits. Current studies show that TBI is most commonly inflicted in older patients after ground-level falls. These patients often take medications affecting coagulation such as anticoagulants or antiplatelet drugs. Guidelines for ED TBI-management assume that anticoagulation therapy (ACT) confers a higher risk of traumatic intracranial hemorrhage (TICH) than antiplatelet therapy (APT). However, recent studies have challenged this. This study aimed to evaluate if oral anticoagulation and platelet inhibitors affected rate of TICH in head-trauma patients with ground-level falls. METHODS This was a retrospective review of medical records during January 1, 2017 to December 31, 2017 and January 1 2020 to December 31, 2020 of all patients seeking ED care because of head-trauma. Patients ≥ 18 years with ground-level falls were included. RESULTS The study included 1938 head-trauma patients with ground-level falls. Median age of patients with TICH was 81 years. The RR for TICH in APT-patients compared to patients without medication affecting coagulation was 1.72 (p = 0.01) (95% Confidence Interval (CI) 1.13-2.60) and 1.08 (p = 0.73), (95% CI 0.70-1.67) in ACT-patients. APT was independently associated with TICH in regression analysis (OR 1.59 (95% CI 1.02-2.49), p = 0.041). CONCLUSION This study adds to the growing evidence that APT-patients with ground-level falls might have as high or higher risk of TICH than ACT-patients. This is not addressed in the current guidelines which may need to be updated. We therefore recommend broad prospective studies.
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Hattingh HL, Michaleff ZA, Fawzy P, Du L, Willcocks K, Tan KM, Keijzers G. Ordering of computed tomography scans for head and cervical spine: a qualitative study exploring influences on doctors' decision-making. BMC Health Serv Res 2022; 22:790. [PMID: 35717206 PMCID: PMC9206095 DOI: 10.1186/s12913-022-08156-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 06/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ordering of computed tomography (CT) scans needs to consideration of diagnostic utility as well as resource utilisation and radiation exposure. Several factors influence ordering decisions, including evidence-based clinical decision support tools to rule out serious disease. The aim of this qualitative study was to explore factors influencing Emergency Department (ED) doctors' decisions to order CT of the head or cervical spine. METHODS In-depth semi-structured interviews were conducted with purposively selected ED doctors from two affiliated public hospitals. An interview tool with 10 questions, including three hypothetical scenarios, was developed and validated to guide discussions. Interviews were audio recorded, transcribed verbatim, and compared with field notes. Transcribed data were imported into NVivo Release 1.3 to facilitate coding and thematic analysis. RESULTS In total 21 doctors participated in semi-structured interviews between February and December 2020; mean interview duration was 35 min. Data saturation was reached. Participants ranged from first-year interns to experienced consultants. Five overarching emerging themes were: 1) health system and local context, 2) work structure and support, 3) professional practices and responsibility, 4) reliable patient information, and 5) holistic patient-centred care. Mapping of themes and sub-themes against a behaviour change model provided a basis for future interventions. CONCLUSIONS CT ordering is complex and multifaceted. Multiple factors are considered by ED doctors during decisions to order CT scans for head or c-spine injuries. Increased education on the use of clinical decision support tools and an overall strategy to improve awareness of low-value care is needed. Strategies to reduce low-yield CT ordering will need to be sustainable, sophisticated and supportive to achieve lasting change.
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Affiliation(s)
- H Laetitia Hattingh
- Diagnostic and Sub-Specialty Services, Gold Coast Health, Southport, Gold Coast, QLD, 4215, Australia. .,School of Pharmacy and Medical Sciences, Griffith University, Southport, Gold Coast, QLD, 4222, Australia.
| | | | - Peter Fawzy
- Neurosurgery Department, Gold Coast Health, Southport, Gold Coast, QLD, 4215, Australia.,School of Medicine and Health Sciences, Bond University, Gold Coast, QLD, 4226, Australia
| | - Leanne Du
- Medical Imaging, Gold Coast Health, Southport, Gold Coast, QLD, 4215, Australia
| | - Karlene Willcocks
- Diagnostic and Sub-Specialty Services, Gold Coast Health, Southport, Gold Coast, QLD, 4215, Australia
| | - K Meng Tan
- Diagnostic and Sub-Specialty Services, Gold Coast Health, Southport, Gold Coast, QLD, 4215, Australia
| | - Gerben Keijzers
- Department of Emergency Medicine, Gold Coast Health, Southport, Gold Coast, QLD, 4215, Australia.,Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, 4226, Australia.,School of Medicine, Griffith University, Southport, Gold Coast, QLD, 4222, Australia
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Abe D, Inaji M, Hase T, Takahashi S, Sakai R, Ayabe F, Tanaka Y, Otomo Y, Maehara T. A Prehospital Triage System to Detect Traumatic Intracranial Hemorrhage Using Machine Learning Algorithms. JAMA Netw Open 2022; 5:e2216393. [PMID: 35687335 PMCID: PMC9187955 DOI: 10.1001/jamanetworkopen.2022.16393] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
IMPORTANCE An adequate system for triaging patients with head trauma in prehospital settings and choosing optimal medical institutions is essential for improving the prognosis of these patients. To our knowledge, there has been no established way to stratify these patients based on their head trauma severity that can be used by ambulance crews at an injury site. OBJECTIVES To develop a prehospital triage system to stratify patients with head trauma according to trauma severity by using several machine learning techniques and to evaluate the predictive accuracy of these techniques. DESIGN, SETTING, AND PARTICIPANTS This single-center retrospective cohort study was conducted by reviewing the electronic medical records of consecutive patients who were transported to Tokyo Medical and Dental University Hospital in Japan from April 1, 2018, to March 31, 2021. Patients younger than 16 years with cardiopulmonary arrest on arrival or with a significant amount of missing data were excluded. MAIN OUTCOMES AND MEASURES Machine learning-based prediction models to detect the presence of traumatic intracranial hemorrhage were constructed. The predictive accuracy of the models was evaluated with the area under the receiver operating curve (ROC-AUC), area under the precision recall curve (PR-AUC), sensitivity, specificity, and other representative statistics. RESULTS A total of 2123 patients (1527 male patients [71.9%]; mean [SD] age, 57.6 [19.8] years) with head trauma were enrolled in this study. Traumatic intracranial hemorrhage was detected in 258 patients (12.2%). Among several machine learning algorithms, extreme gradient boosting (XGBoost) achieved the mean (SD) highest ROC-AUC (0.78 [0.02]) and PR-AUC (0.46 [0.01]) in cross-validation studies. In the testing set, the ROC-AUC was 0.80, the sensitivity was 74.0% (95% CI, 59.7%-85.4%), and the specificity was 74.9% (95% CI, 70.2%-79.3%). The prediction model using the National Institute for Health and Care Excellence (NICE) guidelines, which was calculated after consultation with physicians, had a sensitivity of 72.0% (95% CI, 57.5%-83.8%) and a specificity of 73.3% (95% CI, 68.7%-77.7%). The McNemar test revealed no statistically significant differences between the XGBoost algorithm and the NICE guidelines for sensitivity or specificity (P = .80 and P = .55, respectively). CONCLUSIONS AND RELEVANCE In this cohort study, the prediction model achieved a comparatively accurate performance in detecting traumatic intracranial hemorrhage using only the simple pretransportation information from the patient. Further validation with a prospective multicenter data set is needed.
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Affiliation(s)
- Daisu Abe
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Motoki Inaji
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takeshi Hase
- Institute of Education, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shota Takahashi
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ryosuke Sakai
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Fuga Ayabe
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoji Tanaka
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yasuhiro Otomo
- Department of Acute Critical Care and Disaster Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Taketoshi Maehara
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
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Novoa Ferro M, Santos Armentia E, Silva Priegue N, Jurado Basildo C, Sepúlveda Villegas C, Del Campo Estepar S. Brain CT requests from emergency department: Reality. RADIOLOGIA 2022; 64:422-432. [DOI: 10.1016/j.rxeng.2020.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/24/2020] [Indexed: 11/25/2022]
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71
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Shah A, Oliva C, Barnes R, Presley B. Identification of intracranial hemorrhage progression by transcranial point-of-care ultrasound in a patient with prior hemicraniectomy: a case report. J Ultrasound 2022; 25:399-402. [PMID: 33913120 PMCID: PMC9148341 DOI: 10.1007/s40477-021-00588-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/16/2021] [Indexed: 10/21/2022] Open
Abstract
Transcranial ultrasound has been described as a tool to identify intracranial pathology, however, it is seldom used in the adult patient population due to poor imaging windows and rapid availability of more advanced imaging such as CT and MRI. We report a unique population in which transcranial ultrasound may be beneficial: those with a history of hemicraniectomy. We present a case of a 65-year-old male with a history of hemicraniectomy who suffered head trauma after a fall from his wheelchair. An initial non-contrast head CT scan identified an intracranial hemorrhage. Point-of-care bedside transcranial ultrasound was able to identify the progression of intracranial hemorrhage, which was confirmed by interval head CT. This prompted repeat CT imaging followed by neurosurgical intervention with the placement of an external ventricular drain in the right lateral ventricle. While ultrasound is unlikely to replace the need for more advanced imaging in these patients, point-of-care transcranial ultrasound may be a useful tool that can be employed rapidly at the bedside for interval screening in patients with hemicraniectomy and concern for new or worsening intracranial hemorrhage.
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Affiliation(s)
- Aalap Shah
- Department of Emergency Medicine, Medical University of South Carolina, 169 Ashley Avenue, MSC 300, Charleston, SC, 29425, USA.
| | - Cynthia Oliva
- Department of Emergency Medicine, Medical University of South Carolina, 169 Ashley Avenue, MSC 300, Charleston, SC, 29425, USA
| | - Ryan Barnes
- Department of Emergency Medicine, Medical University of South Carolina, 169 Ashley Avenue, MSC 300, Charleston, SC, 29425, USA
| | - Bradley Presley
- Department of Emergency Medicine, Medical University of South Carolina, 169 Ashley Avenue, MSC 300, Charleston, SC, 29425, USA
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Eser P, Corabay S, Ozmarasali AI, Ocakoglu G, Taskapilioglu MO. The association between hematologic parameters and intracranial injuries in pediatric patients with traumatic brain injury. Brain Inj 2022; 36:740-749. [PMID: 35608540 DOI: 10.1080/02699052.2022.2077442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
OBJECTIVE Analyzing the association between hematologic parameters and abnormal cranial computerized tomography (CT) findings after head trauma. MATERIAL AND METHODS A total of 287 children with isolated traumatic brain injury (TBI) were divided into the 'normal' (NG), 'linear fracture' (LFG) and 'intraparenchymal injury' groups (IPG) based on head CT findings. Demographical/clinical data and laboratory results were obtained from medical records. RESULTS The neutrophil-lymphocyte ratio was markedly higher in the LFG (p = 0.010 and p = 0.016, respectively) and IPG (p = 0.004 and p < 0.001, respectively) compared with NG. Lower lymphocyte-monocyte ratio (p = 0.044) and higher red cell distribution width-platelet ratio (RPR) (p = 0.030) were associated with intraparenchymal injuries. Patients requiring neurosurgical intervention had higher neutrophil-lymphocyte ratio (p = 0.026) and RPR values (p = 0.031) and lower platelet counts (p = 0.035). Lower levels of erythrocytes (p = 0.005), hemoglobin (p = 0.003) and hematocrit (p = 0.002) were associated with severe TBI and unfavorable outcome (p = 0.012, p = 0.004 and p = 0.006, respectively). CONCLUSIONS Hematologic parameters are useful in predicting the presence of abnormal cranial CT findings in children with TBI in association with injury severity; surgery need and clinical outcome.
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Affiliation(s)
- Pinar Eser
- Department of Neurosurgery, Bursa Uludag University Faculty of Medicine, Turkey, Bursa
| | - Seniha Corabay
- Department of Biostatistics, Bursa Uludag University Faculty of Medicine, Turkey, Bursa
| | - Ali Imran Ozmarasali
- Department of Neurosurgery, Bursa Uludag University Faculty of Medicine, Turkey, Bursa
| | - Gokhan Ocakoglu
- Department of Biostatistics, Bursa Uludag University Faculty of Medicine, Turkey, Bursa
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Williams J, Ker K, Roberts I, Shakur-Still H, Miners A. A cost-effectiveness and value of information analysis to inform future research of tranexamic acid for older adults experiencing mild traumatic brain injury. Trials 2022; 23:370. [PMID: 35505387 PMCID: PMC9066715 DOI: 10.1186/s13063-022-06244-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/28/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tranexamic acid reduces head injury deaths in patients with CT scan evidence of intracranial bleeding after mild traumatic brain injury (TBI). However, the cost-effectiveness of tranexamic acid for people with mild TBI in the pre-hospital setting, prior to CT scanning, is uncertain. A large randomised controlled trial (CRASH-4) is planned to address this issue, but the economic justification for it has not been established. The aim of the analysis was to estimate the likelihood of tranexamic acid being cost-effective given current evidence, the treatment effects required for cost-effectiveness, and the expected value of performing further research. METHODS An early economic decision model compared usual care for mild TBI with and without tranexamic acid, for adults aged 70 and above. The evaluation was performed from a UK healthcare perspective over a lifetime time horizon, with costs reported in 2020 pounds (GBP) and outcomes reported as quality-adjusted life years (QALYs). All analyses used a £20,000 per QALY cost-effectiveness threshold. RESULTS In the base case analysis, tranexamic acid was associated with an incremental cost-effectiveness ratio of £4885 per QALY gained, but the likelihood of it being cost-effective was highly dependent on the all-cause mortality treatment effect. The value of perfect information was £22.4 million, and the value of perfect information for parameters that could be collected in a trial was £21.9 million. The all-cause mortality risk ratio for tranexamic acid and the functional outcomes following TBI had the most impact on cost-effectiveness. CONCLUSIONS There is a high degree of uncertainty in the cost-effectiveness of tranexamic acid for older adults experiencing mild TBI, meaning there is a high value of performing future research in the UK. The value in a global context is likely to be far higher.
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Affiliation(s)
- Jack Williams
- Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK.
| | - Katharine Ker
- Clinical Trials Unit, London School of Hygiene & Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Ian Roberts
- Clinical Trials Unit, London School of Hygiene & Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Haleema Shakur-Still
- Clinical Trials Unit, London School of Hygiene & Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Alec Miners
- Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, 15-17 Tavistock Place, London, WC1H 9SH, UK
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Laic RAG, Vander Sloten J, Depreitere B. Traumatic brain injury in the elderly population: a 20-year experience in a tertiary neurosurgery center in Belgium. Acta Neurochir (Wien) 2022; 164:1407-1419. [PMID: 35267099 DOI: 10.1007/s00701-022-05159-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/16/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Traumatic brain injury (TBI) rates in the elderly population are rapidly increasing worldwide. However, there are no clinical guidelines for the treatment of elderly TBI to date. This study aims at describing injury patterns and severity, clinical management, and outcomes in elderly TBI patients, which may contribute to specific prognostic tools and clinical guidelines in the future. METHODS Clinical records of 2999 TBI patients ≥ 65 years old admitted in the University Hospital Leuven (Belgium) between 1999 and 2019 were manually screened and 1480 cases could be included. Records were scrutinized for relevant clinical data. RESULTS The median age in the cohort was 78.0 years (IQR = 12). Falls represented the main accident mechanism (79.7%). The median Glasgow Coma Score on admission was 15 (range 3-15). Subdural hematomas were the most common lesion (28.4%). 90.1% of all patients were hospitalized and 27.0% were admitted to intensive care. 16.4% underwent a neurosurgical intervention. 11.0% of all patients died within 30 days post-TBI. Among the 521 patients with mild TBI, 28.6% were admitted to ICU and 13.1% had a neurosurgical intervention and 30-day mortality was 6.9%. CONCLUSION Over the 20-year study period, an increase of age and comorbidities and a reduction in neurosurgical interventions and ICU admissions were observed, along with a trend to less severe injuries but a higher proportion of treatment withdrawals, while at the same time mortality rates decreased. TBI is a life-changing event, leading to severe consequences in the elderly population, especially at higher ages. Even mild TBI is associated with substantial rates of hospitalization, surgery, and mortality in elderly. The characteristics of the elderly population with TBI are subject to changes over time.
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Nishimura K, Cordeiro JG, Ahmed AI, Yokobori S, Gajavelli S. Advances in Traumatic Brain Injury Biomarkers. Cureus 2022; 14:e23804. [PMID: 35392277 PMCID: PMC8978594 DOI: 10.7759/cureus.23804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2022] [Indexed: 11/05/2022] Open
Abstract
Traumatic brain injury (TBI) is increasingly a major cause of disability across the globe. The current methods of diagnosis are inadequate at classifying patients and prognosis. TBI is a diagnostic and therapeutic challenge. There is no Food and Drug Administration (FDA)-approved treatment for TBI yet. It took about 16 years of preclinical research to develop accurate and objective diagnostic measures for TBI. Two brain-specific protein biomarkers, namely, ubiquitin C-terminal hydrolase-L1 and glial fibrillary acidic protein, have been extensively characterized. Recently, the two biomarkers were approved by the FDA as the first blood-based biomarker, Brain Trauma Indicator™ (BTI™), via the Breakthrough Devices Program. This scoping review presents (i) TBI diagnosis challenges, (ii) the process behind the FDA approval of biomarkers, and (iii) known unknowns in TBI biomarker biology. The current lag in TBI incidence and hospitalization can be reduced if digital biomarkers such as hard fall detection are standardized and used as a mechanism to alert paramedics to an unresponsive trauma patient.
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Cruz Navarro J, Ponce Mejia LL, Robertson C. A Precision Medicine Agenda in Traumatic Brain Injury. Front Pharmacol 2022; 13:713100. [PMID: 35370671 PMCID: PMC8966615 DOI: 10.3389/fphar.2022.713100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
Traumatic brain injury remains a leading cause of death and disability across the globe. Substantial uncertainty in outcome prediction continues to be the rule notwithstanding the existing prediction models. Additionally, despite very promising preclinical data, randomized clinical trials (RCTs) of neuroprotective strategies in moderate and severe TBI have failed to demonstrate significant treatment effects. Better predictive models are needed, as the existing validated ones are more useful in prognosticating poor outcome and do not include biomarkers, genomics, proteonomics, metabolomics, etc. Invasive neuromonitoring long believed to be a "game changer" in the care of TBI patients have shown mixed results, and the level of evidence to support its widespread use remains insufficient. This is due in part to the extremely heterogenous nature of the disease regarding its etiology, pathology and severity. Currently, the diagnosis of traumatic brain injury (TBI) in the acute setting is centered on neurological examination and neuroimaging tools such as CT scanning and MRI, and its treatment has been largely confronted using a "one-size-fits-all" approach, that has left us with many unanswered questions. Precision medicine is an innovative approach for TBI treatment that considers individual variability in genes, environment, and lifestyle and has expanded across the medical fields. In this article, we briefly explore the field of precision medicine in TBI including biomarkers for therapeutic decision-making, multimodal neuromonitoring, and genomics.
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Affiliation(s)
- Jovany Cruz Navarro
- Departments of Anesthesiology and Neurosurgery, Baylor College of Medicine, Houston, TX, United States
| | - Lucido L. Ponce Mejia
- Departments of Neurosurgery and Neurology, LSU Health Science Center, New Orleans, LA, United States
| | - Claudia Robertson
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, United States
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Papa L, Ladde JG, O’Brien JF, Thundiyil JG, Tesar J, Leech S, Cassidy DD, Roa J, Hunter C, Miller S, Baker S, Parrish GA, Davison J, Van Dillen C, Ralls GA, Briscoe J, Falk JL, Weber K, Giordano PA. Evaluation of Glial and Neuronal Blood Biomarkers Compared With Clinical Decision Rules in Assessing the Need for Computed Tomography in Patients With Mild Traumatic Brain Injury. JAMA Netw Open 2022; 5:e221302. [PMID: 35285924 PMCID: PMC9907341 DOI: 10.1001/jamanetworkopen.2022.1302] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
IMPORTANCE In 2018, the combination of glial fibrillary acidic protein (GFAP) and ubiquitin C-terminal hydrolase (UCH-L1) levels became the first US Food and Drug Administration-approved blood test to detect intracranial lesions after mild to moderate traumatic brain injury (MTBI). How this blood test compares with validated clinical decision rules remains unknown. OBJECTIVES To compare the performance of GFAP and UCH-L1 levels vs 3 validated clinical decision rules for detecting traumatic intracranial lesions on computed tomography (CT) in patients with MTBI and to evaluate combining biomarkers with clinical decision rules. DESIGN, SETTING, AND PARTICIPANTS This prospective cohort study from a level I trauma center enrolled adults with suspected MTBI presenting within 4 hours of injury. The clinical decision rules included the Canadian CT Head Rule (CCHR), New Orleans Criteria (NOC), and National Emergency X-Radiography Utilization Study II (NEXUS II) criteria. Emergency physicians prospectively completed data forms for each clinical decision rule before the patients' CT scans. Blood samples for measuring GFAP and UCH-L1 levels were drawn, but laboratory personnel were blinded to clinical results. Of 2274 potential patients screened, 697 met eligibility criteria, 320 declined to participate, and 377 were enrolled. Data were collected from March 16, 2010, to March 5, 2014, and analyzed on August 11, 2021. MAIN OUTCOMES AND MEASURES The presence of acute traumatic intracranial lesions on head CT scan (positive CT finding). RESULTS Among enrolled patients, 349 (93%) had a CT scan performed and were included in the analysis. The mean (SD) age was 40 (16) years; 230 patients (66%) were men, 314 (90%) had a Glasgow Coma Scale score of 15, and 23 (7%) had positive CT findings. For the CCHR, sensitivity was 100% (95% CI, 82%-100%), specificity was 33% (95% CI, 28%-39%), and negative predictive value (NPV) was 100% (95% CI, 96%-100%). For the NOC, sensitivity was 100% (95% CI, 82%-100%), specificity was 16% (95% CI, 12%-20%), and NPV was 100% (95% CI, 91%-100%). For NEXUS II, sensitivity was 83% (95% CI, 60%-94%), specificity was 52% (95% CI, 47%-58%), and NPV was 98% (95% CI, 94%-99%). For GFAP and UCH-L1 levels combined with cutoffs at 67 and 189 pg/mL, respectively, sensitivity was 100% (95% CI, 82%-100%), specificity was 25% (95% CI, 20%-30%), and NPV was 100%; with cutoffs at 30 and 327 pg/mL, respectively, sensitivity was 91% (95% CI, 70%-98%), specificity was 20% (95% CI, 16%-24%), and NPV was 97%. The area under the receiver operating characteristic curve (AUROC) for GFAP alone was 0.83; for GFAP plus NEXUS II, 0.83; for GFAP plus NOC, 0.85; and for GFAP plus CCHR, 0.88. The AUROC for UCH-L1 alone was 0.72; for UCH-L1 plus NEXUS II, 0.77; for UCH-L1 plus NOC, 0.77; and for UCH-L1 plus CCHR, 0.79. The GFAP biomarker alone (without UCH-L1) contributed the most improvement to the clinical decision rules. CONCLUSIONS AND RELEVANCE In this cohort study, the CCHR, the NOC, and GFAP plus UCH-L1 biomarkers had equally high sensitivities, and the CCHR had the highest specificity. However, using different cutoff values reduced both sensitivity and specificity of GFAP plus UCH-L1. Use of GFAP significantly improved the performance of the clinical decision rules, independently of UCH-L1. Together, the CCHR and GFAP had the highest diagnostic performance.
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Affiliation(s)
- Linda Papa
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Jay G. Ladde
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - John F. O’Brien
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Josef G. Thundiyil
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - James Tesar
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Stephen Leech
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - David D. Cassidy
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Jesus Roa
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Christopher Hunter
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Susan Miller
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Sara Baker
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Gary A. Parrish
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Jillian Davison
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Christine Van Dillen
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - George A. Ralls
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Joshua Briscoe
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Jay L. Falk
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Kurt Weber
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
| | - Philip A. Giordano
- Department of Emergency Medicine, Orlando Regional Medical Center, Orlando, Florida
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Lagares A, Castaño-Leon AM, Richard M, Tsitsopoulos PP, Morales J, Mihai P, Pavlov V, Mejan O, de la Cruz J, Payen JF. Variability in the indication of brain CT scan after mild traumatic brain injury. A transnational survey. Eur J Trauma Emerg Surg 2022; 49:1189-1198. [PMID: 35178583 DOI: 10.1007/s00068-022-01902-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/30/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Clinical guidelines have been developed to standardize the management of mild traumatic brain injury (mTBI) in the emergency room, in particular the indication of brain CT scan and the use of blood biomarkers. The objective of this study was to determine the degree of adherence to guidelines in the management of these patients across four countries of Southern Europe. METHODS An electronic survey including structural and general management of mTBI patients and six clinical vignettes was conducted. In-charge physicians from France, Spain, Greece and Portugal were contacted by telephone and email. Differences among countries were searched using an unconditional approach test on contingency tables. RESULTS One hundred and eighty eight physicians from 131 Hospitals (78 Spain, 36 France, 12 Greece and 5 Portugal) completed the questionnaire. There were differences regarding the in-charge specialist across these countries. There was variability in the use of guidelines and their adherence. Spain was the country with the least guideline adherence. There was a global agreement in ordering a brain CT for patients receiving anticoagulation or platelet inhibitors, and for patients with seizures, altered consciousness, neurological deficit, clinical signs of skull fracture or signs of facial fracture. Aging was not an indication for CT in French centres. Loss of consciousness and posttraumatic amnesia were considered as indications for CT more frequently in Spain than in France. These findings were in line with the data from the 6 clinical vignettes. The estimated use of CT reached around 50% of mTBI cases. The use of S100B is restricted to five French centres. CONCLUSIONS There were large variations in the guideline adherence, especially in the situations considered to order brain CT after mTBI.
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Affiliation(s)
- Alfonso Lagares
- Department of Neurosurgery, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Instituto de Investigación imas12, Madrid, Spain.
- Department of Surgery, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain.
| | - Ana María Castaño-Leon
- Department of Neurosurgery, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Instituto de Investigación imas12, Madrid, Spain
| | - Marion Richard
- Department of Anesthesia and Intensive Care, University Grenoble Alpes, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble Institut Des Neurosicences, INSERM, U1216, Grenoble, France
| | - Parmenion Philip Tsitsopoulos
- Department of Neurosurgery, Hippokration General Hospital, Aristotle University School of Medicine, Thessaloniki, Greece
| | - Julian Morales
- Servicio de Urgencias, Hospital Universitario Gregorio Marañón, Madrid, Spain
| | - Podaru Mihai
- Servicio de Urgencias, Hospital Universitario del Tajo, Aranjuez, Spain
| | - Vladislav Pavlov
- bioMérieux, Medical Affairs, Chemin de LÓrme, Marcy-L´Étoile, France
| | - Odile Mejan
- bioMérieux, Clinical Unit, Chemin de lÓrme, Marcy l´Étoile, France
| | - Javier de la Cruz
- Instituto de Investigación imas12, Hospital Universitario 12 de Octubre, SAMID, Madrid, Spain
| | - Jean François Payen
- Department of Anesthesia and Intensive Care, University Grenoble Alpes, Centre Hospitalier Universitaire Grenoble Alpes, Grenoble Institut Des Neurosicences, INSERM, U1216, Grenoble, France
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Magnusson BM, Isaksson E, Koskinen LOD. A prospective observational cohort study of traumatic brain injury in the northern region of Sweden. Brain Inj 2022; 36:191-198. [DOI: 10.1080/02699052.2022.2034952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Beatrice M. Magnusson
- Department of Surgery and Perioperative Sciences, Anesthesiology and Intensive Care Medicine, Umeå University, Sweden
| | - Emil Isaksson
- Department of Surgery and Perioperative Sciences, Anesthesiology and Intensive Care Medicine, Umeå University, Sweden
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Incidence of surgically treated post-traumatic hydrocephalus 6 months following head injury in patients undergoing acute head computed tomography. Acta Neurochir (Wien) 2022; 164:2357-2365. [PMID: 35796788 PMCID: PMC9427877 DOI: 10.1007/s00701-022-05299-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/18/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Post-traumatic hydrocephalus (PTH) is a well-known complication of head injury. The percentage of patients experiencing PTH in trauma cohorts (0.7-51.4%) varies greatly in the prior literature depending on the study population and applied diagnostic criteria. The objective was to determine the incidence of surgically treated PTH in a consecutive series of patients undergoing acute head computed tomography (CT) following injury. METHODS All patients (N = 2908) with head injuries who underwent head CT and were treated at the Tampere University Hospital's Emergency Department (August 2010-July 2012) were retrospectively evaluated from patient medical records. This study focused on adults (18 years or older) who were residents of the Pirkanmaa region at the time of injury and were clinically evaluated and scanned with head CT at the Tampere University Hospital's emergency department within 48 h after injury (n = 1941). A thorough review of records for neurological signs and symptoms of hydrocephalus was conducted for all patients having a radiological suspicion of hydrocephalus. The diagnosis of PTH was based on clinical and radiological signs of the condition within 6 months following injury. The main outcome was surgical treatment for PTH. Clinical evidence of shunt responsiveness was required to confirm the diagnosis of PTH. RESULTS The incidence of surgically treated PTH was 0.15% (n = 3). Incidence was 0.08% among patients with mild traumatic brain injury (TBI) and 1.1% among those with moderate to severe TBI. All the patients who developed PTH underwent neurosurgery during the initial hospitalization due to the head injury. The incidence of PTH among patients who underwent neurosurgery for acute traumatic intracranial lesions was 2.7%. CONCLUSION The overall incidence of surgically treated PTH was extremely low (0.15%) in our cohort. Analyses of risk factors and the evaluation of temporal profiles could not be undertaken due to the extremely small number of cases.
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BELOW CRISTIANO, BRIANTI ISABELACAMPOS, PARREIRA JOSÉGUSTAVO, LUCARELLI-ANTUNES PEDRODESOUZA, SAADE NELSON, GOLIN MURILO, PIVETTA LUCAGIOVANNIANTONIO, VEIGA JOSÉCARLOSESTEVES, ASSEF JOSECESAR. Investigação da presença de lesões traumáticas em segmento cefálico em motociclistas vítimas de acidentes de tráfego: Estudo observacional prospectivo. Rev Col Bras Cir 2022. [DOI: 10.1590/0100-6991e-20223340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Objetivo: análise crítica da investigação diagnóstica de lesões em segmento cefálico de motociclistas vítimas de acidentes de tráfego. Método: estudo observacional prospectivo incluindo motociclistas adultos vítimas de trauma, sem intoxicação exógena, em um período de 12 meses. A tomografia de crânio (TC) foi indicada de acordo com uma modificação dos “critérios canadenses”. Os pacientes que não foram submetidos a TC de crânio tiveram acompanhamento telefônico por três meses. A presença de lesões foi correlacionada com as varáveis coletadas através dos testes Qui-quadrado, t de Student ou Fisher, considerando p<0,05 como significativo. Resultados: dos 208 inicialmente incluídos, 206 (99,0%) estavam usando capacete. Dezessete estavam com sinais de intoxicação exógena e foram excluídos, restando 191 para análise. Noventa pacientes (47,1%) realizaram TC e 12 (6,3%) apresentaram lesões craniencefálicas, que se associaram significativamente a Escala de Coma de Glasgow (ECG) <15 (52,3% vs. 2,8% - p<0,001) e alterações ao exame físico da região cefálica/neurológico (17,1% vs. zero - p<0,05). Quatro pacientes (2,1%) precisaram tratamento cirúrgico de lesões intracranianas. Nenhum dos pacientes admitidos com ECG 15, em uso de capacete e sem alterações no exame físico apresentou TC alterada. Conclusões: para pacientes admitidos com ECG 15, que utilizavam o capacete no acidente e não apresentavam quaisquer alterações no exame físico, a realização da TC de crânio não trouxe mudanças no atendimento ao paciente. .
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Affiliation(s)
- CRISTIANO BELOW
- Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brazil
| | | | - JOSÉ GUSTAVO PARREIRA
- Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brazil
| | | | - NELSON SAADE
- Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brazil
| | - MURILO GOLIN
- Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brazil
| | | | - JOSÉ CARLOS ESTEVES VEIGA
- Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brazil
| | - JOSE CESAR ASSEF
- Irmandade da Santa Casa de Misericórdia de São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, Brazil
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82
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Isokuortti H, Iverson GL, Posti JP, Ruuskanen JO, Brander A, Kataja A, Nikula M, Öhman J, Luoto TM. Serotonergic Antidepressants and Risk for Traumatic Intracranial Bleeding. Front Neurol 2021; 12:758707. [PMID: 34777229 PMCID: PMC8581291 DOI: 10.3389/fneur.2021.758707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 09/23/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Serotonergic antidepressants may predispose to bleeding but the effect on traumatic intracranial bleeding is unknown. Methods: The rate of intracranial bleeding in patients with antidepressant medication was compared to patients not antidepressants in a cohort of patients with acute head injury. This association was examined by using a consecutive cohort of head trauma patients from a Finnish tertiary center emergency department (Tampere University Hospital, Tampere, Finland). All consecutive (2010-2012) adult patients (n = 2,890; median age = 58; male = 56%, CT-positive = 22%, antithrombotic medication users = 25%, antidepressant users = 10%) who underwent head CT due to head trauma in the emergency department were included. Results: Male gender, GCS <15, older age, and anticoagulation were associated with an increased risk for traumatic intracranial bleeding. There were 17.8% of patients not taking antidepressants and 18.3% of patients on an antidepressant who had traumatic intracranial bleeding (p = 0.830). Among patients who were taking antithrombotic medication, 16.6% of the patients not taking antidepressant medication, and 22.5% of the patients taking antidepressant medication, had bleeding (p = 0.239). In a regression analysis, traumatic intracranial hemorrhage was not associated with antidepressant use. Conclusions: Serotonergic antidepressant use was not associated with an increased risk of traumatic intracranial hemorrhage.
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Affiliation(s)
- Harri Isokuortti
- Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Grant L Iverson
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Center for Health and Rehabilitation Research, Spaulding Rehabilitation Hospital and Spaulding Research Institute, Home Base, A Red Sox Foundation and Massachusetts General Hospital Program, Charlestown, MA, United States
| | - Jussi P Posti
- Department of Neurosurgery, Neurocenter, Turku Brain Injury Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Jori O Ruuskanen
- Division of Clinical Neurosciences, Department of Neurology, Turku University Hospital and University of Turku, Turku, Finland.,Medbase Ltd., Turku, Finland
| | - Antti Brander
- Department of Radiology, Medical Imaging Centre, Tampere University Hospital, Tampere, Finland
| | - Anneli Kataja
- Department of Radiology, Medical Imaging Centre, Tampere University Hospital, Tampere, Finland
| | - Milaja Nikula
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Juha Öhman
- Department of Neurosurgery, Tampere University Hospital, Tampere, Finland
| | - Teemu M Luoto
- Department of Neurosurgery, Tampere University Hospital and Tampere University, Tampere, Finland
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83
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Isolated subarachnoid hemorrhage in mild traumatic brain injury: is a repeat CT scan necessary? A single-institution retrospective study. Acta Neurochir (Wien) 2021; 163:3209-3216. [PMID: 33646445 DOI: 10.1007/s00701-020-04622-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/16/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) with isolated subarachnoid hemorrhage (iSAH) is a common finding in the emergency department. In many centers, a repeat CT scan is routinely performed 24 to72 h following the trauma to rule out further radiological progression. The aim of this study is to assess the clinical utility of the repeat CT scan in clinical practice. METHODS We reviewed the medical charts of all patients who presented to our institution with mild TBI (mTBI) and isolated SAH between January 2015 and October 2017. CT scan at admission and control after 24 to 72 h were examined for each patient in order to detect any possible change. Neurological deterioration, antiplatelet/anticoagulant therapy, coagulopathy, SAH location, associated injuries, and length of stay in hospital were analyzed. RESULTS Of the 649 TBI patients, 106 patients met the inclusion criteria. Fifty-four patients were females and 52 were males with a mean age of 68.2 years. Radiological iSAH progression was found in 2 of 106 (1.89) patients, and one of them was under antiplatelet therapy. No neurological deterioration was observed. Ten of 106 (9.4%) patients were under anticoagulation therapy, and 28 of 106 (26.4%) were under antiplatelet therapy. CONCLUSION ISAH in mTBI seems to be a radiological stable entity over 72 h with no neurological deterioration. The clinical utility of a repeat head CT in such patients is questionable, considering its radiation exposure and cost. Regardless of anticoagulation/antiplatelet therapy, neurologic observation and symptomatic treatment solely could be a reasonable alternative.
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84
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Bazarian JJ, Welch RD, Caudle K, Jeffrey CA, Chen JY, Chandran R, McCaw T, Datwyler SA, Zhang H, McQuiston B. Accuracy of a rapid glial fibrillary acidic protein/ubiquitin carboxyl-terminal hydrolase L1 test for the prediction of intracranial injuries on head computed tomography after mild traumatic brain injury. Acad Emerg Med 2021; 28:1308-1317. [PMID: 34358399 PMCID: PMC9290667 DOI: 10.1111/acem.14366] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The objective was to determine the accuracy of a new, rapid blood test combining measurements of both glial fibrillary acidic protein (GFAP) and ubiquitin carboxyl-terminal hydrolase L1 (UCH-L1) for predicting acute traumatic intracranial injury (TII) on head CT scan after mild traumatic brain injury (mTBI). METHODS Analysis of banked venous plasma samples from subjects completing the Prospective Clinical Evaluation of Biomarkers of Traumatic Brain Injury (ALERT-TBI) trial, enrolled 2012-2014 at 22 investigational sites in the United States and Europe. All subjects were ≥18 years old, presented to an emergency department (ED) with a nonpenetrating head injury and Glasgow Coma Scale score (GCS) 9-15 (mild to moderate TBI), underwent head CT scanning as part of their clinical care, and had blood sampling within 12 h of injury. Plasma concentrations of GFAP and UCH-L1 were measured using i-STAT Alinity and TBI plasma cartridge and compared to acute TII on head CT scan. RESULTS Of the 2011 subjects enrolled in ALERT-TBI, 1918 had valid CT scans and plasma specimens for testing and 1901 (99.1%) had GCS 13-15 (mTBI), for which the rapid test was intended. Among these subjects, the rapid test had a sensitivity of 0.958 (95% confidence interval [CI] = 0.906 to 0.982), specificity of 0.404 (95% CI = 0.382 to 0.427), negative predictive value of 0.993 (95% CI = 0.985 to 0.997), and positive predictive value of 0.098 (95% CI = 0.082 to 0.116) for acute TII. CONCLUSIONS A rapid i-STAT-based test had high sensitivity for prediction of acute TII, comparable to lab-based platforms. The speed, portability, and high accuracy of this test may facilitate clinical adoption of brain biomarker testing as an aid to head CT decision making in EDs.
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Affiliation(s)
- Jeffrey J. Bazarian
- Departments of Emergency Medicine and Neurology University of Rochester Rochester New York USA
| | - Robert D. Welch
- Department of Emergency Wayne State University School of Medicine Detroit Michigan USA
- Biostatistics and Epidemiology Research Design Core Wayne State University Detroit Michigan USA
| | - Krista Caudle
- Warfighter Brain Health Project Management OfficeUS Army Medical Materiel Development Activity, US Army Medical Research and Development Command Fort Detrick Maryland USA
| | | | - James Y. Chen
- Department of Radiology San Diego Veterans Administration Medical Center La Jolla California USA
- Department of Radiology UC San Diego Health System La Jolla California USA
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85
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Amoo M, Henry J, O'Halloran PJ, Brennan P, Husien MB, Campbell M, Caird J, Javadpour M, Curley GF. S100B, GFAP, UCH-L1 and NSE as predictors of abnormalities on CT imaging following mild traumatic brain injury: a systematic review and meta-analysis of diagnostic test accuracy. Neurosurg Rev 2021; 45:1171-1193. [PMID: 34709508 DOI: 10.1007/s10143-021-01678-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 09/03/2021] [Accepted: 10/20/2021] [Indexed: 12/25/2022]
Abstract
Biomarkers such as calcium channel binding protein S100 subunit beta (S100B), glial fibrillary acidic protein (GFAP), ubiquitin c-terminal hydrolase L1 (UCH-L1) and neuron-specific enolase (NSE) have been proposed to aid in screening patients presenting with mild traumatic brain injury (mTBI). As such, we aimed to characterise their accuracy at various thresholds. MEDLINE, SCOPUS and EMBASE were searched, and articles reporting the diagnostic performance of included biomarkers were eligible for inclusion. Risk of bias was assessed using the QUADAS-II criteria. A meta-analysis was performed to assess the predictive value of biomarkers for imaging abnormalities on CT. A total of 2939 citations were identified, and 38 studies were included. Thirty-two studies reported data for S100B. At its conventional threshold of 0.1 μg/L, S100B had a pooled sensitivity of 91% (95%CI 87-94) and a specificity of 30% (95%CI 26-34). The optimal threshold for S100B was 0.72 μg/L, with a sensitivity of 61% (95% CI 50-72) and a specificity of 69% (95% CI 64-74). Nine studies reported data for GFAP. The optimal threshold for GFAP was 626 pg/mL, at which the sensitivity was 71% (95%CI 41-91) and specificity was 71% (95%CI 43-90). Sensitivity of GFAP was maximised at a threshold of 22 pg/mL, which had a sensitivity of 93% (95%CI 73-99) and a specificity of 36% (95%CI 12-68%). Three studies reported data for NSE and two studies for UCH-L1, which precluded meta-analysis. There is evidence to support the use of S100B as a screening tool in mild TBI, and potential advantages to the use of GFAP, which requires further investigation.
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Affiliation(s)
- Michael Amoo
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland. .,National Neurosurgical Centre, Beaumont Hospital, Dublin 9, Ireland. .,Beacon Academy, Beacon Hospital, Sandyford, Dublin 18, Ireland.
| | - Jack Henry
- National Neurosurgical Centre, Beaumont Hospital, Dublin 9, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
| | - Philip J O'Halloran
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Paul Brennan
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland.,Department of Radiology, Beaumont Hospital, Dublin 9, Ireland
| | - Mohammed Ben Husien
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland.,National Neurosurgical Centre, Beaumont Hospital, Dublin 9, Ireland
| | - Matthew Campbell
- Department of Genetics, Trinity College Dublin, Dublin 2, Ireland
| | - John Caird
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland.,National Neurosurgical Centre, Beaumont Hospital, Dublin 9, Ireland
| | - Mohsen Javadpour
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland.,National Neurosurgical Centre, Beaumont Hospital, Dublin 9, Ireland.,Department of Academic Neurology, Trinity College Dublin, Dublin 2, Ireland
| | - Gerard F Curley
- Department of Neurosurgery, Royal College of Surgeons in Ireland, Dublin, Ireland.,Department of Anaesthesia and Critical Care, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
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86
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Lochner A, Bazzi A, Guyer C, Brackney A. Acute Concussion Assessment and Management in the Emergency Department. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2021. [DOI: 10.1007/s40138-021-00236-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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87
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Zanello M, Roux A, Gavaret M, Bartolomei F, Huberfeld G, Charlier P, Georges-Zimmermann P, Carron R, Pallud J. King Charles VIII of France's Death: From an Unsubstantiated Traumatic Brain Injury to More Realistic Hypotheses. World Neurosurg 2021; 156:60-67. [PMID: 34537407 DOI: 10.1016/j.wneu.2021.09.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 10/20/2022]
Abstract
On April 7, 1498, Charles VIII, King of France, attended a game of palm in the ditches of the Château d'Amboise. The 27-year-old King suddenly collapsed and became comatose. He laid down, almost on his own, on a straw mat that was hastily arranged, and he died 9 hours later. His contemporaries perceived his death as a perfect reminder of fatality: a king could die alone in a miserable gallery. All who looked into this curious death had dwelled on the frontal blow to head that the king had sustained right before his demise and had not considered alternative scenarios. The present study, still with limited available evidence, aimed to reexamine the historical account of his death in light of modern medical knowledge. It is virtually impossible that a minor bump with low kinetic energy could kill a 27-year-old man. Many historical accounts of Charles VIII's life and death, including Italian ambassadors' letters, led us to reconsider the commonly held version and to propose an alternative hypothesis. We have concluded that Charles VIII had experienced an acute consciousness disorder with language impairment that could have been related to an epileptic condition secondary to neurosyphilis. We have discussed whether a more accurate diagnosis for the cause of death could be obtained by a pathological analysis of the King's remains.
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Affiliation(s)
- Marc Zanello
- Department of Neurosurgery, GHU Paris - Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France; Université de Paris, Paris, France; INSERM UMR 1266, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France.
| | - Alexandre Roux
- Department of Neurosurgery, GHU Paris - Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France; Université de Paris, Paris, France; INSERM UMR 1266, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Martine Gavaret
- Université de Paris, Paris, France; Neurophysiology Department, GHU Paris Psychiatrie et Neurosciences, Sainte-Anne Hospital, Paris, France
| | - Fabrice Bartolomei
- Epileptology and Cerebral Rythmology, APHM-Timone University Hospital, Marseille, France; Aix Marseille Université, INSERM, INS, Institut de Neurosciences des Systèmes, Marseille, France
| | - Gilles Huberfeld
- Clinical Neurophysiology Department, Pitie-Salpetriere Hospital, Sorbonne Université, Assistance Publique - Hôpitaux de Paris, Paris, France; Neuroglial Interactions in Cerebral Physiopathology, Center for Interdisciplinary Research in Biology, Collège de France, CNRS UMR 7241, INSERM U1050, Labex Memolife, PSL Research University, Paris, France
| | - Philippe Charlier
- Department of Research and Higher Education, Musée du quai Branly-Jacques Chirac, Paris, France; Laboratory Anthropology, Archaeology, Biology, Paris-Saclay University, UFR of Health Sciences, Montigny-Le-Bretonneux, France
| | | | - Romain Carron
- Aix Marseille Université, INSERM, INS, Institut de Neurosciences des Systèmes, Marseille, France; Department of Functional and Stereotactic Neurosurgery, APHM-Timone University Hospital, Marseille, France
| | - Johan Pallud
- Department of Neurosurgery, GHU Paris - Psychiatrie et Neurosciences, Hôpital Sainte-Anne, Paris, France; Université de Paris, Paris, France; INSERM UMR 1266, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France
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Hofmann V, Deininger C, Döbele S, Konrads C, Wichlas F. Mild Traumatic Brain Injury in Older Adults: Are Routine Second cCT Scans Necessary? J Clin Med 2021; 10:jcm10173794. [PMID: 34501243 PMCID: PMC8432134 DOI: 10.3390/jcm10173794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 11/24/2022] Open
Abstract
Fall-related hospitalizations among older adults have been increasing in recent decades. One of the most common reasons for this is minimal or mild traumatic brain injury (mTBI) in older individuals taking anticoagulant medication. In this study, we analyzed all inpatient stays from January 2017 to December 2019 of patients aged > 75 years with a mTBI on anticoagulant therapy who received at least two cranial computer tomography (cCT) scans. Of 1477 inpatient stays, 39 had primary cranial bleeding, and in 1438 the results of initial scans were negative for cranial bleeding. Of these 1438 cases, 6 suffered secondary bleeding from the control cCT scan. There was no significance for bleeding related to the type of anticoagulation. We conclude that geriatric patients under anticoagulant medication don’t need a second cCT scan if the primary cCT was negative for intracranial bleeding and the patient shows no clinical signs of bleeding. These patients can be dismissed but require an evaluation for need of home care or protective measures to prevent recurrent falls. The type of anticoagulant medication does not affect the risk of bleeding.
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Affiliation(s)
- Valeska Hofmann
- BG Trauma Centre, Department of Trauma and Reconstructive Surgery, University of Tübingen, 72076 Tübingen, Germany; (S.D.); (C.K.)
- Correspondence:
| | - Christian Deininger
- Department of Orthopedics and Traumatology, University Hospital Salzburg, 5020 Salzburg, Austria; (C.D.); (F.W.)
| | - Stefan Döbele
- BG Trauma Centre, Department of Trauma and Reconstructive Surgery, University of Tübingen, 72076 Tübingen, Germany; (S.D.); (C.K.)
| | - Christian Konrads
- BG Trauma Centre, Department of Trauma and Reconstructive Surgery, University of Tübingen, 72076 Tübingen, Germany; (S.D.); (C.K.)
| | - Florian Wichlas
- Department of Orthopedics and Traumatology, University Hospital Salzburg, 5020 Salzburg, Austria; (C.D.); (F.W.)
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Incidence of delayed bleeding in patients on antiplatelet therapy after mild traumatic brain injury: a systematic review and meta-analysis. Scand J Trauma Resusc Emerg Med 2021; 29:123. [PMID: 34425865 PMCID: PMC8381571 DOI: 10.1186/s13049-021-00936-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 08/12/2021] [Indexed: 11/13/2022] Open
Abstract
Background The scientific evidence regarding the risk of delayed intracranial bleeding (DB) after mild traumatic brain injury (MTBI) in patients administered an antiplatelet agent (APA) is scant and incomplete. In addition, no consensus exists on the utility of a routine repeated head computed tomography (CT) scan in these patients. Objective The aim of this study was to evaluate the risk of DB after MTBI in patients administered an APA. Methods A systematic review and meta-analysis of prospective and retrospective observational studies enrolling adult patients with MTBI administered an APA and who had a second CT scan performed or a clinical follow-up to detect any DB after a first negative head CT scan were conducted. The primary outcome was the risk of DB in MTBI patients administered an APA. The secondary outcome was the risk of clinically relevant DB (defined as any DB leading to neurosurgical intervention or death). Results Sixteen studies comprising 2930 patients were included in this meta-analysis. The pooled absolute risk for DB was 0.77% (95% CI 0.23–1.52%), ranging from 0 to 4%, with substantial heterogeneity (I2 = 61%). The pooled incidence of clinically relevant DB was 0.18%. The subgroup of patients on dual antiplatelet therapy (DAPT) had an increased DB risk, compared to the acetylsalicylic acid (ASA)-only patients (2.64% vs. 0.22%; p = 0.04). Conclusion Our systematic review showed a very low risk of DB in MTBI patients on antiplatelet therapy. We believe that such a low rate of DB could not justify routine repeated CT scans in MTBI patients administered a single APA. We speculate that in the case of clinically stable patients, a repeated head CT scan could be useful for select high-risk patients and for patients on DAPT before discharge. Supplementary Information The online version contains supplementary material available at 10.1186/s13049-021-00936-9.
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90
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Pathan SA, Thomas CE, Bhutta ZA, Qureshi I, Thomas SA, Moinudheen J, Thomas SH. Qatar Prediction Rule Using ED Indicators of COVID-19 at Triage. Qatar Med J 2021; 2021:18. [PMID: 34422577 PMCID: PMC8359675 DOI: 10.5339/qmj.2021.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/04/2021] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION The presence of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) and its associated disease, COVID-19 has had an enormous impact on the operations of the emergency department (ED), particularly the triage area. The aim of the study was to derive and validate a prediction rule that would be applicable to Qatar's adult ED population to predict COVID-19-positive patients. METHODS This is a retrospective study including adult patients. The data were obtained from the electronic medical records (EMR) of the Hamad Medical Corporation (HMC) for three EDs. Data from the Hamad General Hospital ED were used to derive and internally validate a prediction rule (Q-PREDICT). The Al Wakra Hospital ED and Al Khor Hospital ED data formed an external validation set consisting of the same time frame. The variables in the model included the weekly ED COVID-19-positivity rate and the following patient characteristics: region (nationality), age, acuity, cough, fever, tachypnea, hypoxemia, and hypotension. All statistical analyses were executed with Stata 16.1 (Stata Corp). The study team obtained appropriate institutional approval. RESULTS The study included 45,663 adult patients who were tested for COVID-19. Out of these, 47% (n = 21461) were COVID-19 positive. The derivation-set model had very good discrimination (c = 0.855, 95% Confidence intervals (CI) 0.847-0.861). Cross-validation of the model demonstrated that the validation-set model (c = 0.857, 95% CI 0.849-0.863) retained high discrimination. A high Q-PREDICT score ( ≥ 13) is associated with a nearly 6-fold increase in the likelihood of being COVID-19 positive (likelihood ratio 5.9, 95% CI 5.6-6.2), with a sensitivity of 84.7% (95% CI, 84.0%-85.4%). A low Q-PREDICT ( ≤ 6) is associated with a nearly 20-fold increase in the likelihood of being COVID-19 negative (likelihood ratio 19.3, 95% CI 16.7-22.1), with a specificity of 98.7% (95% CI 98.5%-98.9%). CONCLUSION The Q-PREDICT is a simple scoring system based on information readily collected from patients at the front desk of the ED and helps to predict COVID-19 status at triage. The scoring system performed well in the internal and external validation on datasets obtained from the state of Qatar.
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Affiliation(s)
| | | | | | | | - Sarah A Thomas
- Bachelor Candidate in Medical Biosciences, Faculty of Medicine, Imperial College London, UK
| | | | - Stephen H Thomas
- Hamad Medical Corporation, Doha, Qatar E-mail:
- Blizard Institute of Barts & The London School of Medicine, Queen Mary Univ. of London, UK
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Marincowitz C, Gravesteijn B, Sheldon T, Steyerberg E, Lecky F. Performance of the Hull Salford Cambridge Decision Rule (HSC DR) for early discharge of patients with findings on CT scan of the brain: a CENTER-TBI validation study. Emerg Med J 2021; 39:213-219. [PMID: 34315761 DOI: 10.1136/emermed-2020-210975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 07/06/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND There is international variation in hospital admission practices for patients with mild traumatic brain injury (TBI) and injuries on CT scan. Only a small proportion of patients require neurosurgical intervention, while many guidelines recommend routine admission of all patients. We aim to validate the Hull Salford Cambridge Decision Rule (HSC DR) and the Brain Injury Guidelines (BIG) criteria to select low-risk patients for discharge from the emergency department. METHOD A cohort from 18 countries of Glasgow Coma Scale 13-15 patients with injuries on CT imaging was identified from the multicentre Collaborative European NeuroTrauma Effectiveness Research in TBI (CENTER-TBI) Study (conducted from 2014 to 2017) for secondary analysis. A composite outcome measure encompassing need for ongoing hospital admission was used, including seizure activity, death, intubation, neurosurgical intervention and neurological deterioration. We assessed the performance of our previously derived prognostic model, the HSC DR and the BIG criteria at predicting deterioration in this validation cohort. RESULTS Among 1047 patients meeting the inclusion criteria, 267 (26%) deteriorated. Our prognostic model achieved a C-statistic of 0.81 (95% CI: 0.78 to 0.84). The HSC DR achieved a sensitivity of 100% (95% CI: 97% to 100%) and specificity of only 4.7% (95% CI: 3.3% to 6.5%) for deterioration. Using the BIG criteria for discharge from the ED achieved a higher specificity (13.3%, 95% CI: 10.9% to 16.1%) and lower sensitivity (94.6%, 95% CI: 90.5% to 97%), with 12/105 patients recommended for discharge subsequently deteriorating, compared with 0/34 with the HSC DR. CONCLUSION Our decision rule would have allowed 3.5% of patients to be discharged, none of whom would have deteriorated. Use of the BIG criteria may select patients for discharge who have too high a risk of subsequent deterioration to be used clinically. Further validation and implementation studies are required to support use in clinical practice.
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Affiliation(s)
- Carl Marincowitz
- Centre for Urgent and Emergency Care Research (CURE), School of Health and Related Research (ScHARR), The University of Sheffield, Sheffield, UK
| | - Benjamin Gravesteijn
- Department of Public Health, Erasmus Medical Center, Rotterdam, Zuid-Holland, The Netherlands
| | - Trevor Sheldon
- Institute of Population Health Sciences, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Ewout Steyerberg
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, Zuid-Holland, The Netherlands
| | - Fiona Lecky
- Centre for Urgent and Emergency Care Research (CURE), School of Health and Related Research (ScHARR). Emergency Department, Salford Royal Hospital, University of Sheffield and Salford Royal Hospital, Sheffield, UK
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92
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Oris C, Bouillon-Minois JB, Pinguet J, Kahouadji S, Durif J, Meslé V, Pereira B, Schmidt J, Sapin V, Bouvier D. Predictive Performance of Blood S100B in the Management of Patients Over 65 Years Old With Mild Traumatic Brain Injury. J Gerontol A Biol Sci Med Sci 2021; 76:1471-1479. [PMID: 33647933 DOI: 10.1093/gerona/glab055] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND We previously assessed the inclusion of S100B blood determination into clinical decision rules for mild traumatic brain injury (mTBI) management in the Emergency Department (ED) of Clermont-Ferrand Hospital. At the 0.10 µg/L threshold, S100B reduced the use of cranial computed tomography (CCT) scan in adults by at least 30% with a ~100% sensitivity. Older patients had higher serum S100B values, resulting in lower specificity (18.7%) and decreased CCT reduction. We conducted this study to confirm the age effect on S100B concentrations, and to propose new decisional thresholds for older patients. METHODS A total of 1172 mTBI patients aged 65 and over were included. They were divided into 3 age groups: 65-79, 80-89, and ≥ 90 years old. S100B's performance to identify intracranial lesions (sensitivity [SE] and specificity [SP]) was assessed using the routine 0.10 µg/L threshold and also other more efficient thresholds established for each age group. RESULTS S100B concentration medians were 0.18, 0.26, and 0.32 µg/L for the 65-79, 80-89, and ≥ 90 years old age groups, respectively (p < .001). The most efficient thresholds were 0.11 µg/L for the 65-79 age group and 0.15 µg/L for the other groups. At these new thresholds, SP was respectively 28.4%, 34.3%, and 20.5% for each age group versus 24.9%, 18.2%, and 10.5% at the 0.10 µg/L threshold. CONCLUSIONS Adjustment of the S100B threshold is necessary in older patients' management. An increased threshold of 0.15 µg/L is particularly interesting for patients ≥ 80 years old, allowing a significant increase of CCT scan reduction (29.3%).
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Affiliation(s)
- Charlotte Oris
- University Hospital, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France.,Clermont Auvergne University, CNRS 6293, INSERM 1103, GReD, Clermont-Ferrand, France
| | | | - Jérémy Pinguet
- University Hospital, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France
| | - Samy Kahouadji
- University Hospital, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France
| | - Julie Durif
- University Hospital, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France
| | - Vallauris Meslé
- Clermont Auvergne University, CNRS 6293, INSERM 1103, GReD, Clermont-Ferrand, France
| | - Bruno Pereira
- University Hospital, Biostatistics unit (DRCI) Department, Clermont-Ferrand, France
| | - Jeannot Schmidt
- University Hospital, Adult Emergency Department, Clermont-Ferrand, France
| | - Vincent Sapin
- University Hospital, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France.,Clermont Auvergne University, CNRS 6293, INSERM 1103, GReD, Clermont-Ferrand, France
| | - Damien Bouvier
- University Hospital, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France.,Clermont Auvergne University, CNRS 6293, INSERM 1103, GReD, Clermont-Ferrand, France
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93
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Reducing Unnecessary Head Computed Tomographic Scans in an Adult Emergency Department. J Nurse Pract 2021. [DOI: 10.1016/j.nurpra.2020.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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94
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Allen J, Ravichandiran K, McLaughlin TL, MacDonald C, Howard J, Lanting B, Vasarhelyi E. The utility of head CT scans in geriatric patients with hip fractures following a low energy injury mechanism: A retrospective review. Injury 2021; 52:1462-1466. [PMID: 33536129 DOI: 10.1016/j.injury.2020.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 11/15/2020] [Accepted: 12/19/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Hip fractures are common low-energy orthopaedic injuries in the geriatric population. The purpose of this study is to determine the frequency of CT head exams and the incidence of clinically significant intracranial bleed in patients with low energy hip fractures. DESIGN A retrospective cross-sectional review was completed to identify hip fractures presenting to an academic health centre between 2006 and 2015. Our inclusion criteria were those patients with low energy hip fractures and medical records were reviewed to determine whether a CT head scan was utilized as part of their workup. RESULTS A total of 2114 patients were reviewed with an average age of 83.2 years. Hip fractures were treated with a hemiarthroplasty in 59.1% of the patients and with a dynamic hip screw in 40.9% of the patients. 26.9% (n = 502) of the patients received a CT head scan as part of their workup. Sixty-two patients (12.3% of patients who received a CT scan or 2.9% of the study population) were found to have had an acute intracranial bleed. None of these patients required neurosurgical intervention and only 9 (14.5% of patients with a positive CT head) had a modification to their thromboprophylaxis post-op. Of the 15 (26.4%) patient on home anticoagulation for a pre-existing medical condition, 10 (67%) had a delay in reinitiating their anticoagulation greater than 24 h post-operatively. CONCLUSION During the study period, 26.7% of patients received a CT scan, with only 2.9% of patients suffering from a concurrent intracranial bleed. None of the patients with a positive scan required neurosurgical intervention, and scan results did not routinely alter DVT prophylaxis. Resuming home anticoagulation was delayed greater than 24 h post-operatively in ten (67%) of cases. With the challenges of resource allocation, potential delays to surgery and costs associated with CT scans, these investigations should be reserved for patients who have a history or physical exam findings of head trauma or are on anticoagulation pre-injury in the low energy hip fracture population. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- James Allen
- Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, 339 Windermere Road, London, ON Canada N6A 5A5.
| | - Kajeandra Ravichandiran
- Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, 339 Windermere Road, London, ON Canada N6A 5A5.
| | - Terry-Lyne McLaughlin
- Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, 339 Windermere Road, London, ON Canada N6A 5A5.
| | - Christie MacDonald
- Division of Emergency Medicine, Department of Medicine, London Health Sciences Centre, Victoria Hospital, Rm E6-117. London, ON, Canada N6A 5A5.
| | - James Howard
- Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, Room C9-002, 339 Windermere Rd. London, ON Canada N6A 5A5.
| | - Brent Lanting
- Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, 339 Windermere Road, London, ON Canada N6A 5A5.
| | - Edward Vasarhelyi
- Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, 339 Windermere Road, London, ON Canada N6A 5A5.
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Letlotlo BL, Lumu LD, Moosa MYH, Jeenah FY. Clinical use of neuro-imaging in psychiatric patients at the Charlotte Maxeke Johannesburg Academic Hospital. S Afr J Psychiatr 2021; 27:1614. [PMID: 34192082 PMCID: PMC8182466 DOI: 10.4102/sajpsychiatry.v27i0.1614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/07/2021] [Indexed: 11/30/2022] Open
Abstract
Background Neuro-imaging is relatively new in psychiatry. Although the actual role of neuro-imaging in psychiatry remains unclear, it is used to strengthen clinical evidence in making psychiatric diagnoses. Aim To analyse the records of inpatients referred for neuro-imaging (computerised tomography [CT] and/or magnetic resonance imaging [MRI] scans) to determine the proportion of abnormal neuro-imaging results and, if any, factors associated with abnormal neuro-imaging results. Setting This study was conducted at the Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) situated in Johannesburg, South Africa. Methods This was a quantitative retrospective record review. All adult psychiatric inpatients who had undergone a CT and/or MRI scan during 01 January 2014 to 31 December 2015 were included. Out-patients or patients admitted in the medical wards were excluded from the study. All neuro-imaging referrals were identified from hospital records and their demographics, scan characteristics and diagnoses were subsequently captured. Results A total of 1040 patients were admitted to the CMJAH psychiatric unit, of which 213 (20.5%) underwent neuro-imaging tests. Of the 213 scans performed, 74 were abnormal, representing a yield of 34.7%. The most common reported pathology was atrophy (n = 22, 29.7%). There was no statistically significant association between age group (χ2 = 3.9, p = 0.8), gender (χ2 = 1.3; p = 0.5), psychiatric diagnoses and abnormal scans. However, there were trends towards an association with comorbid HIV infection (χ2 = 3.476, p = 0.062) and comorbid substance abuse (χ2 = 2.286, p = 0.091). Conclusion This study supports the need for clear clinical indications to justify the cost-effective use of neuro-imaging in psychiatry. This study’s high yield of abnormal CT scans, although similar to other studies, advocates that HIV positive testing and the presence of focal neurological signs will improve the yield further.
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Affiliation(s)
- Bokang L Letlotlo
- Department of Psychiatry, Faculty of Neurosciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Lavinia D Lumu
- Department of Psychiatry, Faculty of Neurosciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mahomed Y H Moosa
- Department of Psychiatry, Faculty of Neurosciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Fatima Y Jeenah
- Department of Psychiatry, Faculty of Neurosciences, University of the Witwatersrand, Johannesburg, South Africa
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Haselmann V, Schamberger C, Trifonova F, Ast V, Froelich MF, Strauß M, Kittel M, Jaruschewski S, Eschmann D, Neumaier M, Neumaier-Probst E. Plasma-based S100B testing for management of traumatic brain injury in emergency setting. Pract Lab Med 2021; 26:e00236. [PMID: 34041343 PMCID: PMC8141926 DOI: 10.1016/j.plabm.2021.e00236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 05/07/2021] [Indexed: 11/28/2022] Open
Abstract
Background Serum biomarker S100B has been explored for its potential benefit to improve clinical decision-making in the management of patients suffering from traumatic brain injury (TBI), especially as a pre-head computed-tomography screening test for patients with mild TBI. Although being already included into some guidelines, its implementation into standard care is still lacking. This might be explained by a turnaround time (TAT) too long for serum S100B to be used in clinical decision-making in emergency settings. Methods S100B concentrations were determined in 136 matching pairs of serum and lithium heparin blood samples. The concordance of the test results was assessed by linear regression, Passing Pablok regression and Bland-Altman analysis. Bias and within- and between-run imprecision were determined by a 5 × 4 model using pooled patient samples. CT scans were performed as clinically indicated. Results Overall, S100B levels between both blood constituents correlated very well. The suitability of S100B testing from plasma was verified according to ISO15189 requirements. Using a cut-off of 0.105 ng/ml, a sensitivity and negative predictive value of 100% were obtained for identifying patients with pathologic CT scans. Importantly, plasma-based testing reduced the TAT to 26 min allowing for quicker clinical decision-making. The clinical utility of integrating S100B in TBI management is highlighted by two case reports. Conclusions Plasma-based S100B testing compares favorably with serum-based testing, substantially reducing processing times as the prerequisite for integrating S100B level into management of TBI patients. The proposed new clinical decision algorithm for TBI management needs to be validated in further prospective large-scale studies. Plasma-based S100B testing reduces turnaround time to 26 minutes and thus enables its use in the emergency department. Plasma- and serum-based S100B testing demonstrate commutability of results. Clinical cases demonstrate the benefit of elevated S100B levels as an indicator for second-look CT re-evaluation.
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Affiliation(s)
- Verena Haselmann
- Department of Clinical Chemistry, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
- Corresponding author. Department of Clinical Chemistry, University Medical Center, Mannheim, Germany.
| | - Christian Schamberger
- Orthopaedic-Trauma Surgery Centre, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Feodora Trifonova
- Department of Clinical Chemistry, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Volker Ast
- Department of Clinical Chemistry, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Matthias F. Froelich
- Institute of Clinical Radiology and Nuclear Medicine, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Maximilian Strauß
- Department of Clinical Chemistry, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Maximilian Kittel
- Department of Clinical Chemistry, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Sabine Jaruschewski
- Laboratory Diagnostic Center, RWTH University Hospital Aachen, Aachen, Germany
| | - David Eschmann
- Orthopaedic-Trauma Surgery Centre, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Michael Neumaier
- Department of Clinical Chemistry, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
| | - Eva Neumaier-Probst
- Department of Neuroradiology, University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
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Shih RY, Burns J, Ajam AA, Broder JS, Chakraborty S, Kendi AT, Lacy ME, Ledbetter LN, Lee RK, Liebeskind DS, Pollock JM, Prall JA, Ptak T, Raksin PB, Shaines MD, Tsiouris AJ, Utukuri PS, Wang LL, Corey AS. ACR Appropriateness Criteria® Head Trauma: 2021 Update. J Am Coll Radiol 2021; 18:S13-S36. [PMID: 33958108 DOI: 10.1016/j.jacr.2021.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 01/14/2021] [Indexed: 12/13/2022]
Abstract
Head trauma (ie, head injury) is a significant public health concern and is a leading cause of morbidity and mortality in children and young adults. Neuroimaging plays an important role in the management of head and brain injury, which can be separated into acute (0-7 days), subacute (<3 months), then chronic (>3 months) phases. Over 75% of acute head trauma is classified as mild, of which over 75% have a normal Glasgow Coma Scale score of 15, therefore clinical practice guidelines universally recommend selective CT scanning in this patient population, which is often based on clinical decision rules. While CT is considered the first-line imaging modality for suspected intracranial injury, MRI is useful when there are persistent neurologic deficits that remain unexplained after CT, especially in the subacute or chronic phase. Regardless of time frame, head trauma with suspected vascular injury or suspected cerebrospinal fluid leak should also be evaluated with CT angiography or thin-section CT imaging of the skull base, respectively. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
| | - Judah Burns
- Panel Chair, Montefiore Medical Center, Bronx, New York
| | | | - Joshua S Broder
- Duke University School of Medicine, Durham, North Carolina, American College of Emergency Physicians, Residency Program Director for Emergency Medicine, Vice Chief for Education, Division of Emergency Medicine, Department of Surgery, Duke University School of Medicine
| | - Santanu Chakraborty
- Ottawa Hospital Research Institute and the Department of Radiology, The University of Ottawa, Ottawa, Ontario, Canada, Canadian Association of Radiologists, CAR representative in ACR Quality Commission
| | - A Tuba Kendi
- Mayo Clinic, Rochester, Minnesota, Head of Nuclear Medicine Therapies at Mayo Clinic
| | - Mary E Lacy
- University of New Mexico, Albuquerque, New Mexico, American College of Physicians
| | | | - Ryan K Lee
- Einstein Healthcare Network, Philadelphia, Pennsylvania
| | - David S Liebeskind
- University of California Los Angeles, Los Angeles, California, American Academy of Neurology, President of SVIN
| | - Jeffrey M Pollock
- Oregon Health and Science University, Portland, Oregon, Editor, ACR Case in Point; Functional MRI Director, Oregon Health and Science University
| | - J Adair Prall
- Littleton Adventist Hospital, Littleton, Colorado, Neurosurgery expert, Chair, Guidelines Committee, Joint Section for Trauma and Critical Care
| | - Thomas Ptak
- R. Adams Cowley Shock Trauma Center, University of Maryland Medical Center, Baltimore, Maryland, Vice Chair of Community Radiology, University of Maryland Medical Center, Chief of Emergency and Trauma Imaging, R Adams Cowley Shock Trauma Center
| | - P B Raksin
- John H. Stroger Jr Hospital of Cook County, Chicago, Illinois, Neurosurgery expert, Chair Elect, American Association of Neurological Surgeons/Congress of Neurological Surgeons Section on Neurotrauma & Neurocritical Care; Vice Chair, American Association of Neurological Surgeons/Congress of Neurological Surgeons Joint Guidelines Review Committee; Director, Neurosurgery ICU
| | - Matthew D Shaines
- Albert Einstein College of Medicine Montefiore Medical Center, Bronx, New York, Internal Medicine Physician, Associate Program Director for the Moses-Weiler Internal Medicine Residency Program, Albert Einstein College of Medicine; Associate Chief, Division of Hospital Medicine
| | | | | | - Lily L Wang
- University of Cincinnati Medical Center, Cincinnati, Ohio, Neuroradiology Fellowship Program Director
| | - Amanda S Corey
- Specialty Chair, Atlanta VA Health Care System and Emory University, Atlanta, Georgia
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98
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Ward MD, Weber A, Merrill VD, Welch RD, Bazarian JJ, Christenson RH. Predictive Performance of Traumatic Brain Injury Biomarkers in High-Risk Elderly Patients. J Appl Lab Med 2021; 5:91-100. [PMID: 32445344 DOI: 10.1093/jalm.2019.031393] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/31/2019] [Indexed: 11/13/2022]
Abstract
BACKGROUND Serum glial fibrillary acidic protein (GFAP) and ubiquitin carboxyl-terminal esterase L1 (UCH-L1) have recently received US Food and Drug Administration approval for prediction of abnormal computed tomography (CT) in mild traumatic brain injury patients (mTBI). However, their performance in elderly patients has not been characterized. METHODS We performed a posthoc analysis using the A Prospective Clinical Evaluation of Biomarkers of Traumatic Brain Injury (ALERT-TBI) study data. Previously recorded patient variables and serum values of GFAP and UCH-L1 from mTBI patients were partitioned at 65 years of age (herein referred to as ≥65, high-risk; <65, low-risk). We sought to assess the influence of age on predictive performance, sensitivity, and negative predictive value (NPV) of serum UCH-L1 and GFAP to predict intracranial injury by CT. RESULTS Elderly mTBI patients constituted 25.7% of the patient cohort (n = 504/1959). Sensitivity and NPV of GFAP/UCH-L1 were 100%, with no significant difference from younger patients (P = 0.5525 and P > 0.9999, respectively). Specificity was significantly lower in elderly patients (0.131 vs 0.442; P < 0.0001) and decreased stepwise with older age. Compared to younger patients, elderly mTBI patients without abnormal (i.e., normal) CT findings also had a significantly higher GFAP (38.6 vs 16.2 pg/mL; P < 0.0001) and UCH-L1 (347.4 vs 232.1 pg/mL; P < 0.0001). CONCLUSIONS Sensitivity and NPV to predict intracranial injury by CT was nearly identical between younger and elderly mTBI patients. Decrements in specificity and increased serum values suggest that special deference may be warranted for elderly patients.
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Affiliation(s)
- Matthew D Ward
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD
| | - Art Weber
- Banyan Biomarkers Inc., San Diego, CA
| | - VeRonika D Merrill
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD
| | - Robert D Welch
- Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, MI
| | - Jeffrey J Bazarian
- Department of Emergency Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - Robert H Christenson
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD
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99
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Reece JT, Milone M, Wang P, Herman D, Petrov D, Shaw LM. A Biomarker for Concussion: The Good, the Bad, and the Unknown. J Appl Lab Med 2021; 5:170-182. [PMID: 32445345 DOI: 10.1093/jalm.2019.031187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 10/28/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) is a significant cause of morbidity, mortality, and disability in the US, with >2.8 million patients presenting to the emergency department (ED) annually. However, the diagnosis of TBI is challenging and presents a number of difficulties, particularly at the mildest end of the spectrum: concussion. A number of groups have researched biomarkers to aid in the evaluation of TBI, and most recently in 2018 the Food and Drug Administration approved a new blood-based immunoassay biomarker using ubiquitin carboxyl hydrolase L1 and glial fibrillary acidic protein to aid in head computed tomography (CT) triage. CONTENT This review clarifies the practical challenges in assessing and implementing a new blood biomarker. It then examines the clinical context and need, as well as the evidence used to validate this new immunoassay. SUMMARY Concussion is a multifaceted diagnosis with a need for biomarkers to assist in diagnostic and prognostic assessment. Recent articles in the lay press have revealed misunderstanding about the function of this new test, expressing hopes that this biomarker serves patients at the mildest end of the spectrum and is useful for athletes and children. None of these assumptions are correct, as this biomarker has been evaluated in patients only at the moderate end of the spectrum and has been validated only in adults presenting to the ED who have already been triaged to receive head CT, not in athletes or children. The next steps for this assay should consider clinical work flow and clarifying its intended use, including integration with existing triage methods, and validating the assay for a broader population.
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Affiliation(s)
- Jenna T Reece
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Michael Milone
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Ping Wang
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Daniel Herman
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Dmitriy Petrov
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Leslie M Shaw
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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Marincowitz C, Paton L, Lecky F, Tiffin P. Predicting need for hospital admission in patients with traumatic brain injury or skull fractures identified on CT imaging: a machine learning approach. Emerg Med J 2021; 39:394-401. [PMID: 33832924 DOI: 10.1136/emermed-2020-210776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/27/2021] [Accepted: 03/04/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Patients with mild traumatic brain injury on CT scan are routinely admitted for inpatient observation. Only a small proportion of patients require clinical intervention. We recently developed a decision rule using traditional statistical techniques that found neurologically intact patients with isolated simple skull fractures or single bleeds <5 mm with no preinjury antiplatelet or anticoagulant use may be safely discharged from the emergency department. The decision rule achieved a sensitivity of 99.5% (95% CI 98.1% to 99.9%) and specificity of 7.4% (95% CI 6.0% to 9.1%) to clinical deterioration. We aimed to transparently report a machine learning approach to assess if predictive accuracy could be improved. METHODS We used data from the same retrospective cohort of 1699 initial Glasgow Coma Scale (GCS) 13-15 patients with injuries identified by CT who presented to three English Major Trauma Centres between 2010 and 2017 as in our original study. We assessed the ability of machine learning to predict the same composite outcome measure of deterioration (indicating need for hospital admission). Predictive models were built using gradient boosted decision trees which consisted of an ensemble of decision trees to optimise model performance. RESULTS The final algorithm reported a mean positive predictive value of 29%, mean negative predictive value of 94%, mean area under the curve (C-statistic) of 0.75, mean sensitivity of 99% and mean specificity of 7%. As with logistic regression, GCS, severity and number of brain injuries were found to be important predictors of deterioration. CONCLUSION We found no clear advantages over the traditional prediction methods, although the models were, effectively, developed using a smaller data set, due to the need to divide it into training, calibration and validation sets. Future research should focus on developing models that provide clear advantages over existing classical techniques in predicting outcomes in this population.
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Affiliation(s)
- Carl Marincowitz
- Centre for Urgent and Emergency Care Research (CURE), Health Services Research School of Health and Related Research, The University of Sheffield, Sheffield, UK
| | - Lewis Paton
- Department of Health Sciences, University of York Alcuin College, York, York, UK
| | - Fiona Lecky
- Centre for Urgent and Emergency Care Research (CURE), Health Services Research School of Health and Related Research, The University of Sheffield, Sheffield, UK
| | - Paul Tiffin
- Hull York Medical School Department of Health Sciences, University of York, York, UK
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