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Harder TJ, Leary OP, Yang Z, Lucke-Wold B, Liu DD, Still ME, Zhang M, Yeatts SD, Allen JW, Wright DW, Merck D, Merck LH. Early Signs of Elevated Intracranial Pressure on Computed Tomography Correlate With Measured Intracranial Pressure in the Intensive Care Unit and Six-Month Outcome After Moderate to Severe Traumatic Brain Injury. J Neurotrauma 2023; 40:1603-1613. [PMID: 37082956 PMCID: PMC10458381 DOI: 10.1089/neu.2022.0433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
Traumatic brain injury (TBI) is a leading cause of death and disability in the United States. Early triage and treatment after TBI have been shown to improve outcome. Identifying patients at risk for increased intracranial pressure (ICP) via baseline computed tomography (CT) , however, has not been validated previously in a prospective dataset. We hypothesized that acute CT findings of elevated ICP, combined with direct ICP measurement, hold prognostic value in terms of six-month patient outcome after TBI. Data were obtained from the Progesterone for Traumatic Brain Injury, Experimental Clinical Treatment (ProTECTIII) multi-center clinical trial. Baseline CT scans for 881 participants were individually reviewed by a blinded central neuroradiologist. Five signs of elevated ICP were measured (sulcal obliteration, lateral ventricle compression, third ventricle compression, midline shift, and herniation). Associations between signs of increased ICP and outcomes (six-month functional outcome and death) were assessed. Secondary analyses of 354 patients with recorded ICP monitoring data available explored the relationships between hemorrhage phenotype/anatomic location, sustained ICP ≥20 mm Hg, and surgical intervention(s). Univariate and multi-variate logistic/linear regressions were performed; p < 0.05 is defined as statistically significant. Imaging characteristics associated with ICP in this cohort include sulcal obliteration (p = 0.029) and third ventricular compression (p = 0.039). Univariate regression analyses indicated that increasing combinations of the five defined signs of elevated ICP were associated with death, poor functional outcome, and time to death. There was also an increased likelihood of death if patients required craniotomy (odds ratio [OR] = 4.318, 95% confidence interval [1.330-16.030]) or hemicraniectomy (OR = 2.993 [1.109-8.482]). On multi-variate regression analyses, hemorrhage location was associated with death (posterior fossa, OR = 3.208 [1.120-9.188] and basal ganglia, OR = 3.079 [1.178-8.077]). Volume of hemorrhage >30 cc was also associated with increased death, OR = 3.702 [1.575-8.956]). The proportion of patient hours with sustained ICP ≥20 mm Hg, and maximum ICP ≥20 mm Hg were also directly correlated with increased death (OR = 6 4.99 [7.731-635.51]; and OR = 1.025 [1.004-1.047]), but not with functional outcome. Poor functional outcome was predicted by concurrent presence of all five radiographic signs of elevated ICP (OR = 4.44 [1.514-14.183]) and presence of frontal lobe (OR = 2.951 [1.265-7.067]), subarachnoid (OR = 2.231 [1.067-4.717]), or intraventricular (OR = 2.249 [1.159-4.508]) hemorrhage. Time to death was modulated by total patient days of elevated ICP ≥20 mm Hg (effect size = 3.424 [1.500, 5.439]) in the first two weeks of hospitalization. Sulcal obliteration and third ventricular compression, radiographic signs of elevated ICP, were significantly associated with measurements of ICP ≥20 mm Hg. These radiographic biomarkers were significantly associated with patient outcome. There is potential utility of ICP-related imaging variables in triage and prognostication for patients after moderate-severe TBI.
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Affiliation(s)
- Tyler J. Harder
- Department of Emergency Medicine, Brown University, Providence, Rhode Island, USA
| | - Owen P. Leary
- Department of Neurosurgery, Brown University, Providence, Rhode Island, USA
| | - Zhihui Yang
- Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - David D. Liu
- Department of Neurosurgery, Brown University, Providence, Rhode Island, USA
- Department of Neurosurgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Megan E.H. Still
- Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
| | - Miao Zhang
- Department of Information Systems and Operation Management, University of Florida, Gainesville, Florida, USA
| | - Sharon D. Yeatts
- Department of Biostatistics, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Jason W. Allen
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia, USA
| | - David W. Wright
- Department of Emergency Medicine, Emory University, Atlanta, Georgia, USA
| | - Derek Merck
- Department of Radiology, University of Florida, Gainesville, Florida, USA
| | - Lisa H. Merck
- Department of Neurosurgery, Brown University, Providence, Rhode Island, USA
- Department of Emergency Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
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Self WH, Shotwell MS, Gibbs KW, de Wit M, Files DC, Harkins M, Hudock KM, Merck LH, Moskowitz A, Apodaca KD, Barksdale A, Safdar B, Javaheri A, Sturek JM, Schrager H, Iovine N, Tiffany B, Douglas IS, Levitt J, Busse LW, Ginde AA, Brown SM, Hager DN, Boyle K, Duggal A, Khan A, Lanspa M, Chen P, Puskarich M, Vonderhaar D, Venkateshaiah L, Gentile N, Rosenberg Y, Troendle J, Bistran-Hall AJ, DeClercq J, Lavieri R, Joly MM, Orr M, Pulley J, Rice TW, Schildcrout JS, Semler MW, Wang L, Bernard GR, Collins SP. Renin-Angiotensin System Modulation With Synthetic Angiotensin (1-7) and Angiotensin II Type 1 Receptor-Biased Ligand in Adults With COVID-19: Two Randomized Clinical Trials. JAMA 2023; 329:1170-1182. [PMID: 37039791 PMCID: PMC10091180 DOI: 10.1001/jama.2023.3546] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/24/2023] [Indexed: 04/12/2023]
Abstract
Importance Preclinical models suggest dysregulation of the renin-angiotensin system (RAS) caused by SARS-CoV-2 infection may increase the relative activity of angiotensin II compared with angiotensin (1-7) and may be an important contributor to COVID-19 pathophysiology. Objective To evaluate the efficacy and safety of RAS modulation using 2 investigational RAS agents, TXA-127 (synthetic angiotensin [1-7]) and TRV-027 (an angiotensin II type 1 receptor-biased ligand), that are hypothesized to potentiate the action of angiotensin (1-7) and mitigate the action of the angiotensin II. Design, Setting, and Participants Two randomized clinical trials including adults hospitalized with acute COVID-19 and new-onset hypoxemia were conducted at 35 sites in the US between July 22, 2021, and April 20, 2022; last follow-up visit: July 26, 2022. Interventions A 0.5-mg/kg intravenous infusion of TXA-127 once daily for 5 days or placebo. A 12-mg/h continuous intravenous infusion of TRV-027 for 5 days or placebo. Main Outcomes and Measures The primary outcome was oxygen-free days, an ordinal outcome that classifies a patient's status at day 28 based on mortality and duration of supplemental oxygen use; an adjusted odds ratio (OR) greater than 1.0 indicated superiority of the RAS agent vs placebo. A key secondary outcome was 28-day all-cause mortality. Safety outcomes included allergic reaction, new kidney replacement therapy, and hypotension. Results Both trials met prespecified early stopping criteria for a low probability of efficacy. Of 343 patients in the TXA-127 trial (226 [65.9%] aged 31-64 years, 200 [58.3%] men, 225 [65.6%] White, and 274 [79.9%] not Hispanic), 170 received TXA-127 and 173 received placebo. Of 290 patients in the TRV-027 trial (199 [68.6%] aged 31-64 years, 168 [57.9%] men, 195 [67.2%] White, and 225 [77.6%] not Hispanic), 145 received TRV-027 and 145 received placebo. Compared with placebo, both TXA-127 (unadjusted mean difference, -2.3 [95% CrI, -4.8 to 0.2]; adjusted OR, 0.88 [95% CrI, 0.59 to 1.30]) and TRV-027 (unadjusted mean difference, -2.4 [95% CrI, -5.1 to 0.3]; adjusted OR, 0.74 [95% CrI, 0.48 to 1.13]) resulted in no difference in oxygen-free days. In the TXA-127 trial, 28-day all-cause mortality occurred in 22 of 163 patients (13.5%) in the TXA-127 group vs 22 of 166 patients (13.3%) in the placebo group (adjusted OR, 0.83 [95% CrI, 0.41 to 1.66]). In the TRV-027 trial, 28-day all-cause mortality occurred in 29 of 141 patients (20.6%) in the TRV-027 group vs 18 of 140 patients (12.9%) in the placebo group (adjusted OR, 1.52 [95% CrI, 0.75 to 3.08]). The frequency of the safety outcomes was similar with either TXA-127 or TRV-027 vs placebo. Conclusions and Relevance In adults with severe COVID-19, RAS modulation (TXA-127 or TRV-027) did not improve oxygen-free days vs placebo. These results do not support the hypotheses that pharmacological interventions that selectively block the angiotensin II type 1 receptor or increase angiotensin (1-7) improve outcomes for patients with severe COVID-19. Trial Registration ClinicalTrials.gov Identifier: NCT04924660.
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Affiliation(s)
- Wesley H. Self
- Vanderbilt Institute for Clinical and Translational Research, Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Matthew S. Shotwell
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kevin W. Gibbs
- Department of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - Marjolein de Wit
- Department of Medicine, Virginia Commonwealth University, Richmond
| | - D. Clark Files
- Department of Medicine, Wake Forest University, Winston-Salem, North Carolina
| | - Michelle Harkins
- Department of Internal Medicine, University of New Mexico, Albuquerque
| | | | - Lisa H. Merck
- Department of Emergency Medicine, Virginia Commonwealth University Health System, Richmond
| | - Ari Moskowitz
- Department of Medicine, Montefiore Medical Center, Bronx, New York
| | | | - Aaron Barksdale
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha
| | - Basmah Safdar
- Department of Emergency Medicine, Yale University, New Haven, Connecticut
| | - Ali Javaheri
- Department of Medicine, Washington University, St Louis, Missouri
| | | | - Harry Schrager
- Department of Medicine, Tufts School of Medicine, Newton-Wellesley Hospital, Newton, Massachusetts
| | - Nicole Iovine
- Department of Medicine, University of Florida, Gainesville
| | | | - Ivor S. Douglas
- Department of Medicine, Denver Health Medical Center, Denver, Colorado
| | - Joseph Levitt
- Department of Medicine, Stanford University, Stanford, California
| | | | - Adit A. Ginde
- Department of Emergency Medicine, School of Medicine, University of Colorado, Aurora
| | - Samuel M. Brown
- Department of Pulmonary/Critical Care Medicine, Intermountain Medical Center, Murray, Utah
| | - David N. Hager
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Katherine Boyle
- Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Abhijit Duggal
- Department of Medicine, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Akram Khan
- Department of Medicine, Oregon Health & Science University, Portland
| | - Michael Lanspa
- Department of Pulmonary/Critical Care Medicine, Intermountain Medical Center, Murray, Utah
| | - Peter Chen
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Michael Puskarich
- Department of Emergency Medicine, University of Minnesota, Minneapolis
| | - Derek Vonderhaar
- Department of Medicine, Ochsner Medical Center, New Orleans, Louisiana
| | | | - Nina Gentile
- Department of Emergency Medicine, Temple University, Philadelphia, Pennsylvania
| | - Yves Rosenberg
- National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - James Troendle
- National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Amanda J. Bistran-Hall
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Josh DeClercq
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Robert Lavieri
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Meghan Morrison Joly
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael Orr
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jill Pulley
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Todd W. Rice
- Vanderbilt Institute for Clinical and Translational Research, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Matthew W. Semler
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Li Wang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Gordon R. Bernard
- Vanderbilt Institute for Clinical and Translational Research, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Sean P. Collins
- Vanderbilt Institute for Clinical and Translational Research, Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Geriatric Research, Education, and Clinical Center, Veterans Affairs Tennessee Valley Healthcare System, Nashville
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Moskowitz A, Shotwell MS, Gibbs KW, Harkins M, Rosenberg Y, Troendle J, Merck LH, Files DC, de Wit M, Hudock K, Thompson BT, Gong MN, Ginde AA, Douin DJ, Brown SM, Rubin E, Joly MM, Wang L, Lindsell CJ, Bernard GR, Semler MW, Collins SP, Self WH. Oxygen-Free Days as an Outcome Measure in Clinical Trials of Therapies for COVID-19 and Other Causes of New-Onset Hypoxemia. Chest 2022; 162:804-814. [PMID: 35504307 PMCID: PMC9055785 DOI: 10.1016/j.chest.2022.04.145] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/09/2022] [Accepted: 04/22/2022] [Indexed: 11/21/2022] Open
Abstract
Mortality historically has been the primary outcome of choice for acute and critical care clinical trials. However, undue reliance on mortality can limit the scope of trials that can be performed. Large sample sizes are usually needed for trials powered for a mortality outcome, and focusing solely on mortality fails to recognize the importance that reducing morbidity can have on patients' lives. The COVID-19 pandemic has highlighted the need for rapid, efficient trials to rigorously evaluate new therapies for hospitalized patients with acute lung injury. Oxygen-free days (OFDs) is a novel outcome for clinical trials that is a composite of mortality and duration of new supplemental oxygen use. It is designed to characterize recovery from acute lung injury in populations with a high prevalence of new hypoxemia and supplemental oxygen use. In these populations, OFDs captures two patient-centered consequences of acute lung injury: mortality and hypoxemic lung dysfunction. Power to detect differences in OFDs typically is greater than that for other clinical trial outcomes, such as mortality and ventilator-free days. OFDs is the primary outcome for the Fourth Accelerating COVID-19 Therapeutic Interventions and Vaccines (ACTIV-4) Host Tissue platform, which evaluates novel therapies targeting the host response to COVID-19 among adults hospitalized with COVID-19 and new hypoxemia. This article outlines the rationale for use of OFDs as an outcome for clinical trials, proposes a standardized method for defining and analyzing OFDs, and provides a framework for sample size calculations using the OFD outcome.
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Affiliation(s)
- Ari Moskowitz
- Department of Medicine, Montefiore Medical Center, The Bronx, NY
| | - Matthew S Shotwell
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN
| | - Kevin W Gibbs
- Department of Medicine, Wake Forest University, Winston-Salem, NC
| | - Michelle Harkins
- Department of Medicine, University of New Mexico, Albuquerque, NM
| | | | | | - Lisa H Merck
- Department of Emergency Medicine, Virginia Commonwealth University, Richmond, VA
| | - D Clark Files
- Department of Medicine, Wake Forest University, Winston-Salem, NC
| | - Marjolein de Wit
- Department of Medicine, Virginia Commonwealth University, Richmond, VA
| | - Kristin Hudock
- Department of Medicine, University of Cincinnati, Cincinnati, OH
| | | | - Michelle N Gong
- Department of Medicine, Montefiore Medical Center, The Bronx, NY
| | - Adit A Ginde
- Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, CO
| | - David J Douin
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO
| | - Samuel M Brown
- Department of Medicine, Intermountain Medical Center, Murray, UT; Office of Research, Intermountain Medical Center, Murray, UT
| | | | - Meghan Morrison Joly
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, TN
| | - Li Wang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN
| | | | - Gordon R Bernard
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, TN; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Matthew W Semler
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Sean P Collins
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, TN; Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, TN; Veterans Affairs Tennessee Valley Healthcare System, Geriatric Research, Education and Clinical Center (GRECC), Nashville, TN
| | - Wesley H Self
- Vanderbilt Institute for Clinical and Translational Research, Vanderbilt University Medical Center, Nashville, TN; Department of Emergency Medicine, Vanderbilt University Medical Center, Nashville, TN.
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Maciel CB, Barlow B, Lucke-Wold B, Gobinathan A, Abu-Mowis Z, Peethala MM, Merck LH, Aspide R, Dickinson K, Miao G, Shan G, Bilotta F, Morris NA, Citerio G, Busl KM. Acute Headache Management for Patients with Subarachnoid Hemorrhage: An International Survey of Health Care Providers. Neurocrit Care 2022; 38:395-406. [PMID: 35915347 DOI: 10.1007/s12028-022-01571-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/05/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Severe headaches are common after subarachnoid hemorrhage. Guidelines recommend treatment with acetaminophen and opioids, but patient data show that headaches often persist despite multimodal treatment approaches. Considering an overall slim body of data for a common complaint affecting patients with SAH during their intensive care stay, we set out to assess practice patterns in headache management among clinicians who treat patients with SAH. METHODS We conducted an international cross-sectional study through a 37-question Web-based survey distributed to members of five professional societies relevant to intensive and neurocritical care from November 2021 to January 2022. Responses were characterized through descriptive analyses. Fisher's exact test was used to test associations. RESULTS Of 516 respondents, 329 of 497 (66%) were from North America and 121 of 497 (24%) from Europe. Of 435 respondents, 379 (87%) reported headache as a major management concern for patients with SAH. Intensive care teams were primarily responsible for analgesia during hospitalization (249 of 435, 57%), whereas responsibility shifted to neurosurgery at discharge (233 of 501, 47%). Most used medications were acetaminophen (90%), opioids (66%), corticosteroids (28%), and antiseizure medications (28%). Opioids or medication combinations including opioids were most frequently perceived as most effective by 169 of 433 respondents (39%, predominantly intensivists), followed by corticosteroids or combinations with corticosteroids (96 of 433, 22%, predominantly neurologists). Of medications prescribed at discharge, acetaminophen was most common (303 of 381, 80%), followed by opioids (175 of 381, 46%) and antiseizure medications (173 of 381, 45%). Opioids during hospitalization were significantly more prescribed by intensivists, by providers managing higher numbers of patients with SAH, and in Europe. At discharge, opioids were more frequently prescribed in North America. Of 435 respondents, 299 (69%) indicated no change in prescription practice of opioids with the opioid crisis. Additional differences in prescription patterns between continents and providers and while inpatient versus at discharge were found. CONCLUSIONS Post-SAH headache in the intensive care setting is a major clinical concern. Analgesia heavily relies on opioids both in use and in perception of efficacy, with no reported change in prescription patterns for opioids for most providers despite the significant drawbacks of opioids. Responsibility for analgesia shifts between hospitalization and discharge. International and provider-related differences are evident. Novel treatment strategies and alignment of prescription between providers are urgently needed.
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Affiliation(s)
- Carolina B Maciel
- Department of Neurology, College of Medicine, University of Florida, McKnight Brain Institute, L3-100, 1149 Newell Drive, Gainesville, FL, 32608, USA.,Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Brooke Barlow
- Department of Pharmacy, University of Florida Health Shands Hospital, Gainesville, FL, USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Arravintha Gobinathan
- Departments of Microbiology and Anthropology, University of Florida, Gainesville, FL, USA
| | - Zaid Abu-Mowis
- Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Mounika Mukherjee Peethala
- Department of Neurology, College of Medicine, University of Florida, McKnight Brain Institute, L3-100, 1149 Newell Drive, Gainesville, FL, 32608, USA
| | - Lisa H Merck
- Department of Emergency Medicine College of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Raffaele Aspide
- Anesthesia and Neurointensive Care Unit, Istituto delle Scienze Neurologiche di Bologna, Istituto di Ricovero e Cura a Carattere Scientifico, Bologna, Italy
| | - Katie Dickinson
- Department of Neurology, College of Medicine, University of Florida, McKnight Brain Institute, L3-100, 1149 Newell Drive, Gainesville, FL, 32608, USA
| | - Guanhong Miao
- Department of Biostatistics, University of Florida, Gainesville, FL, USA
| | - Guogen Shan
- Department of Biostatistics, University of Florida, Gainesville, FL, USA.,Research Design and Data Coordinating Center, Clinical and Translational Science Institute, University of Florida, Gainesville, FL, USA
| | - Federico Bilotta
- Department of Anesthesiology, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Nicholas A Morris
- Department of Neurology, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Giuseppe Citerio
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy.,Neurointensive Care Unit, San Gerardo Hospital, ASST-Monza, Monza, Italy
| | - Katharina M Busl
- Department of Neurology, College of Medicine, University of Florida, McKnight Brain Institute, L3-100, 1149 Newell Drive, Gainesville, FL, 32608, USA. .,Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL, USA.
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Mainali S, Cardim D, Sarwal A, Merck LH, Yeatts SD, Czosnyka M, Shutter L. Prolonged Automated Robotic TCD Monitoring in Acute Severe TBI: Study Design and Rationale. Neurocrit Care 2022; 37:267-275. [PMID: 35381966 DOI: 10.1007/s12028-022-01483-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/01/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Transcranial Doppler ultrasonography (TCD) is a portable, bedside, noninvasive diagnostic tool used for the real-time assessment of cerebral hemodynamics. Despite the evident utility of TCD and the ability of this technique to function as a stethoscope to the brain, its use has been limited to specialized centers because of the dearth of technical and clinical expertise required to acquire and interpret the cerebrovascular parameters. Additionally, the conventional pragmatic episodic TCD monitoring protocols lack dynamic real-time feedback to guide time-critical clinical interventions. Fortunately, with the recent advent of automated robotic TCD technology in conjunction with the automated software for TCD data processing, we now have the technology to automatically acquire TCD data and obtain clinically relevant information in real-time. By obviating the need for highly trained clinical personnel, this technology shows great promise toward a future of widespread noninvasive monitoring to guide clinical care in patients with acute brain injury. METHODS Here, we describe a proposal for a prospective observational multicenter clinical trial to evaluate the safety and feasibility of prolonged automated robotic TCD monitoring in patients with severe acute traumatic brain injury (TBI). We will enroll patients with severe non-penetrating TBI with concomitant invasive multimodal monitoring including, intracranial pressure, brain tissue oxygenation, and brain temperature monitoring as part of standard of care in centers with varying degrees of TCD availability and experience. Additionally, we propose to evaluate the correlation of pertinent TCD-based cerebral autoregulation indices such as the critical closing pressure, and the pressure reactivity index with the brain tissue oxygenation values obtained invasively. CONCLUSIONS The overarching goal of this study is to establish safety and feasibility of prolonged automated TCD monitoring for patients with TBI in the intensive care unit and identify clinically meaningful and pragmatic noninvasive targets for future interventions.
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Affiliation(s)
- Shraddha Mainali
- Department of Neurology, Virginial Commonwealth University, Richmond, VA, USA.
| | - Danilo Cardim
- Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Aarti Sarwal
- Department of Neurology, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Lisa H Merck
- Departments of Emergency Medicine and Neurology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Sharon D Yeatts
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Marek Czosnyka
- Brain Physics Laboratory, Neurosurgical Unit, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Lori Shutter
- Department of Critical Care Medicine, Neurology, and Neurosurgery, University of Pittsburgh, Pittsburgh, PA, USA
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Bernard F, Barsan W, Diaz-Arrastia R, Merck LH, Yeatts S, Shutter LA. Brain Oxygen Optimization in Severe Traumatic Brain Injury (BOOST-3): a multicentre, randomised, blinded-endpoint, comparative effectiveness study of brain tissue oxygen and intracranial pressure monitoring versus intracranial pressure alone. BMJ Open 2022; 12:e060188. [PMID: 35273066 PMCID: PMC8915289 DOI: 10.1136/bmjopen-2021-060188] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/02/2022] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Management of traumatic brain injury (TBI) includes invasive monitoring to prevent secondary brain injuries. Intracranial pressure (ICP) monitor is the main measurement used to that intent but cerebral hypoxia can occur despite normal ICP. This study will assess whether the addition of a brain tissue oxygenation (PbtO2) monitor prevents more secondary injuries that will translate into improved functional outcome. METHODS AND ANALYSIS Multicentre, randomised, blinded-endpoint comparative effectiveness study enrolling 1094 patients with severe TBI monitored with both ICP and PbtO2. Patients will be randomised to medical management guided by ICP alone (treating team blinded to PbtO2 values) or both ICP and PbtO2. Management is protocolised according to international guidelines in a tiered approach fashion to maintain ICP <22 mm Hg and PbtO2 >20 mm Hg. ICP and PbtO2 will be continuously recorded for a minimum of 5 days. The primary outcome measure is the Glasgow Outcome Scale-Extended performed at 180 (±30) days by a blinded central examiner. Favourable outcome is defined according to a sliding dichotomy where the definition of favourable outcome varies according to baseline severity. Severity will be defined according to the probability of poor outcome predicted by the IMPACT core model. A large battery of secondary outcomes including granular neuropsychological and quality of life measures will be performed. ETHICS AND DISSEMINATION This has been approved by Advarra Ethics Committee (Pro00030585). Results will be presented at scientific meetings and published in peer-reviewed publications. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Registry (NCT03754114).
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Affiliation(s)
- Francis Bernard
- Critical Care, Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada
- Department of Medicine, Université de Montreal, Montreal, Québec, Canada
| | - William Barsan
- Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ramon Diaz-Arrastia
- Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lisa H Merck
- Emergency Medicine and Neurology, Neurocritical Care, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Sharon Yeatts
- Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Lori A Shutter
- Critical Care Medicine, Neurology, & Neurosurgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Puskarich MA, Ingraham NE, Merck LH, Driver BE, Wacker DA, Black LP, Jones AE, Fletcher CV, South AM, Murray TA, Lewandowski C, Farhat J, Benoit JL, Biros MH, Cherabuddi K, Chipman JG, Schacker TW, Guirgis FW, Voelker HT, Koopmeiners JS, Tignanelli CJ. Efficacy of Losartan in Hospitalized Patients With COVID-19-Induced Lung Injury: A Randomized Clinical Trial. JAMA Netw Open 2022; 5:e222735. [PMID: 35294537 PMCID: PMC8928006 DOI: 10.1001/jamanetworkopen.2022.2735] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/23/2022] [Indexed: 12/14/2022] Open
Abstract
Importance SARS-CoV-2 viral entry may disrupt angiotensin II (AII) homeostasis, contributing to COVID-19 induced lung injury. AII type 1 receptor blockade mitigates lung injury in preclinical models, although data in humans with COVID-19 remain mixed. Objective To test the efficacy of losartan to reduce lung injury in hospitalized patients with COVID-19. Design, Setting, and Participants This blinded, placebo-controlled randomized clinical trial was conducted in 13 hospitals in the United States from April 2020 to February 2021. Hospitalized patients with COVID-19 and a respiratory sequential organ failure assessment score of at least 1 and not already using a renin-angiotensin-aldosterone system (RAAS) inhibitor were eligible for participation. Data were analyzed from April 19 to August 24, 2021. Interventions Losartan 50 mg orally twice daily vs equivalent placebo for 10 days or until hospital discharge. Main Outcomes and Measures The primary outcome was the imputed arterial partial pressure of oxygen to fraction of inspired oxygen (Pao2:Fio2) ratio at 7 days. Secondary outcomes included ordinal COVID-19 severity; days without supplemental o2, ventilation, or vasopressors; and mortality. Losartan pharmacokinetics and RAAS components (AII, angiotensin-[1-7] and angiotensin-converting enzymes 1 and 2)] were measured in a subgroup of participants. Results A total of 205 participants (mean [SD] age, 55.2 [15.7] years; 123 [60.0%] men) were randomized, with 101 participants assigned to losartan and 104 participants assigned to placebo. Compared with placebo, losartan did not significantly affect Pao2:Fio2 ratio at 7 days (difference, -24.8 [95%, -55.6 to 6.1]; P = .12). Compared with placebo, losartan did not improve any secondary clinical outcomes and led to fewer vasopressor-free days than placebo (median [IQR], 9.4 [9.1-9.8] vasopressor-free days vs 8.7 [8.2-9.3] vasopressor-free days). Conclusions and Relevance This randomized clinical trial found that initiation of orally administered losartan to hospitalized patients with COVID-19 and acute lung injury did not improve Pao2:Fio2 ratio at 7 days. These data may have implications for ongoing clinical trials. Trial Registration ClinicalTrials.gov Identifier: NCT04312009.
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Affiliation(s)
- Michael A. Puskarich
- Department of Emergency Medicine, University of Minnesota, Minneapolis
- Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota
| | - Nicholas E. Ingraham
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Minnesota, Minneapolis
| | - Lisa H. Merck
- Department of Emergency Medicine, University of Florida College of Medicine, Gainesville
| | - Brian E. Driver
- Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis, Minnesota
| | - David A. Wacker
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, University of Minnesota, Minneapolis
| | - Lauren Page Black
- Department of Emergency Medicine, University of Florida College of Medicine, Jacksonville
| | - Alan E. Jones
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson
| | | | - Andrew M. South
- Section of Nephrology, Department of Pediatrics, Wake Forest School of Medicine and Brenner Children's Hospital, Winston Salem, North Carolina
- Division of Public Health Sciences, Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston Salem, North Carolina
- Department of Surgery-Hypertension and Vascular Research, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Thomas A. Murray
- Department of Biostatistics, School of Public Health, University of Minnesota, Minneapolis
| | - Christopher Lewandowski
- Department of Emergency Medicine, Henry Ford Hospital, Wayne State University, Detroit, Michigan
| | - Joseph Farhat
- Department of Surgery, North Memorial Medical Center, Minneapolis, Minnesota
| | - Justin L. Benoit
- Department of Emergency Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Michelle H. Biros
- Department of Emergency Medicine, University of Minnesota, Minneapolis
| | - Kartik Cherabuddi
- Department of Emergency Medicine, University of Florida College of Medicine, Gainesville
| | | | - Timothy W. Schacker
- Division of Infectious Disease, Department of Medicine, University of Minnesota, Minneapolis
| | - Faheem W. Guirgis
- Department of Emergency Medicine, University of Florida College of Medicine, Jacksonville
| | - Helen T. Voelker
- Department of Biostatistics, School of Public Health, University of Minnesota, Minneapolis
| | - Joseph S. Koopmeiners
- Department of Biostatistics, School of Public Health, University of Minnesota, Minneapolis
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Maciel CB, Teixeira FJP, Dickinson KJ, Spana JC, Merck LH, Rabinstein AA, Sergott R, Shan G, Miao G, Peloquin CA, Busl KM, Hirsch LJ. Early vigabatrin augmenting GABA-ergic pathways in post-anoxic status epilepticus (VIGAB-STAT) phase IIa clinical trial study protocol. Neurol Res Pract 2022; 4:4. [PMID: 35067230 PMCID: PMC8785535 DOI: 10.1186/s42466-022-00168-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 12/30/2021] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Nearly one in three unconscious cardiac arrest survivors experience post-anoxic status epilepticus (PASE). Historically, PASE has been deemed untreatable resulting in its exclusion from status epilepticus clinical trials. However, emerging reports of survivors achieving functional independence following early and aggressive treatment of PASE challenged this widespread therapeutic nihilism. In the absence of proven therapies specific to PASE, standard of care treatment leans on general management strategies for status epilepticus. Vigabatrin—an approved therapy for refractory focal-onset seizures in adults—inhibits the enzyme responsible for GABA catabolism, increases brain GABA levels and may act synergistically with anesthetic agents to abort seizures. Our central hypothesis is that early inhibition of GABA breakdown is possible in the post-cardiac arrest period and may be an effective adjunctive treatment in PASE.
Methods
This is a phase IIa, single-center, open-label, pilot clinical trial with blinded outcome assessment, of a single dose of vigabatrin in 12 consecutive PASE subjects. Subjects will receive a single loading dose of 4500 mg of vigabatrin (or dose adjusted in moderate and severe renal impairment) via enteric tube within 48 h of PASE onset. Vigabatrin levels will be monitored at 0- (baseline), 0.5-, 1-, 2-, 3-, 6-, 12-, 24-, 48-, 72- and 168-h (7 days) post-vigabatrin. Serum biomarkers of neuronal injury will be measured at 0-, 24-, 48-, 72- and 96-h post-vigabatrin. The primary feasibility endpoint is the proportion of enrolled subjects among identified eligible subjects receiving vigabatrin within 48 h of PASE onset. The primary pharmacokinetic endpoint is the measured vigabatrin level at 3 h post-administration. Descriptive statistics with rates and proportions will be obtained regarding feasibility outcomes, along with the noncompartmental method for pharmacokinetic analyses. The area under the vigabatrin concentration-time curve in plasma from zero to the time of the last quantifiable concentration (AUC0-tlqc) will be calculated to estimate dose-linear pharmacokinetics.
Perspective
Vigabatrin demonstrates high potential for synergism with current standard of care therapies. Demonstration of the feasibility of vigabatrin administration and preliminary safety in PASE will pave the way for future efficacy and safety trials of this pharmacotherapeutic.
Trial Registration NCT04772547.
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9
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Leary OP, Merck LH, Yeatts SD, Pan I, Liu DD, Harder TJ, Jung S, Collins S, Braileanu M, Gokaslan ZL, Allen JW, Wright DW, Merck D. Computer-Assisted Measurement of Traumatic Brain Hemorrhage Volume Is More Predictive of Functional Outcome and Mortality than Standard ABC/2 Method: An Analysis of Computed Tomography Imaging Data from the Progesterone for Traumatic Brain Injury Experimental Clinical Treatment Phase-III Trial. J Neurotrauma 2021; 38:604-615. [PMID: 33191851 PMCID: PMC7898408 DOI: 10.1089/neu.2020.7209] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Hemorrhage volume is an important variable in emergently assessing traumatic brain injury (TBI). The most widely used method for rapid volume estimation is ABC/2, a simple algorithm that approximates lesion geometry as perfectly ellipsoid. The relative prognostic value of volume measurement based on more precise hematoma topology remains unknown. In this study, we compare volume measurements obtained using ABC/2 versus computer-assisted volumetry (CAV) for both intra- and extra-axial traumatic hemorrhages, and then quantify the association of measurements using both methods with patient outcome following moderate to severe TBI. A total of 517 computer tomography (CT) scans acquired during the Progesterone for Traumatic Brain Injury Experimental Clinical Treatment Phase-III (ProTECTIII) multi-center trial were retrospectively reviewed. Lesion volumes were measured using ABC/2 and CAV. Agreement between methods was tested using Bland-Altman analysis. Relationship of volume measurements with 6-month mortality, Extended Glasgow Outcome Scale (GOS-E), and Disability Rating Scale (DRS) were assessed using linear regression and area under the curve (AUC) analysis. In subdural hematoma (SDH) >50cm3, ABC/2 and CAV produce significantly different volume measurements (p < 0.0001), although the difference was not significant for smaller SDH or intra-axial lesions. The disparity between ABC/2 and CAV measurements varied significantly with hematoma size for both intra- and extra-axial lesions (p < 0.0001). Across all lesions, volume was significantly associated with outcome using either method (p < 0.001), but CAV measurement was a significantly better predictor of outcome than ABC/2 estimation for SDH. Among large traumatic SDH, ABC/2 significantly overestimates lesion volume compared with measurement based on precise bleed topology. CAV also offers significantly better prediction of patient functional outcofme and mortality.
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Affiliation(s)
- Owen P. Leary
- Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - Lisa H. Merck
- Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Emergency Medicine, University of Florida College of Medicine, Gainesville Florida, USA
| | - Sharon D. Yeatts
- Department of Health Sciences, Medical University of South Carolina, Charleston South Carolina, USA
| | - Ian Pan
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - David D. Liu
- Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - Tyler J. Harder
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - Stefan Jung
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - Scott Collins
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - Maria Braileanu
- Department of Radiology and Emory University School of Medicine, Atlanta Georgia, USA
| | - Ziya L. Gokaslan
- Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
| | - Jason W. Allen
- Department of Radiology and Emory University School of Medicine, Atlanta Georgia, USA
| | - David W. Wright
- Department of Emergency Medicine, Emory University School of Medicine, Atlanta Georgia, USA
| | - Derek Merck
- Department of Diagnostic Imaging, and Warren Alpert Medical School of Brown University, Providence Rhode Island, USA
- Department of Emergency Medicine, University of Florida College of Medicine, Gainesville Florida, USA
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10
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Simpkins AN, Busl KM, Amorim E, Barnett-Tapia C, Cervenka MC, Dhakar MB, Etherton MR, Fung C, Griggs R, Holloway RG, Kelly AG, Khan IR, Lizarraga KJ, Madagan HG, Onweni CL, Mestre H, Rabinstein AA, Rubinos C, Dionisio-Santos DA, Youn TS, Merck LH, Maciel CB. Proceedings from the Neurotherapeutics Symposium on Neurological Emergencies: Shaping the Future of Neurocritical Care. Neurocrit Care 2020; 33:636-645. [PMID: 32959201 PMCID: PMC7736003 DOI: 10.1007/s12028-020-01085-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022]
Abstract
Effective treatment options for patients with life-threatening neurological disorders are limited. To address this unmet need, high-impact translational research is essential for the advancement and development of novel therapeutic approaches in neurocritical care. "The Neurotherapeutics Symposium 2019-Neurological Emergencies" conference, held in Rochester, New York, in June 2019, was designed to accelerate translation of neurocritical care research via transdisciplinary team science and diversity enhancement. Diversity excellence in the neuroscience workforce brings innovative and creative perspectives, and team science broadens the scientific approach by incorporating views from multiple stakeholders. Both are essential components needed to address complex scientific questions. Under represented minorities and women were involved in the organization of the conference and accounted for 30-40% of speakers, moderators, and attendees. Participants represented a diverse group of stakeholders committed to translational research. Topics discussed at the conference included acute ischemic and hemorrhagic strokes, neurogenic respiratory dysregulation, seizures and status epilepticus, brain telemetry, neuroprognostication, disorders of consciousness, and multimodal monitoring. In these proceedings, we summarize the topics covered at the conference and suggest the groundwork for future high-yield research in neurologic emergencies.
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Affiliation(s)
- Alexis N Simpkins
- Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine, Room L3-100, 1149 Newell Drive, Gainesville, FL, 32611, USA.
| | - Katharina M Busl
- Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine, Room L3-100, 1149 Newell Drive, Gainesville, FL, 32611, USA
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, FL, USA
| | - Edilberto Amorim
- Department of Neurology, University of California, San Francisco, San Francisco, CA, USA
| | - Carolina Barnett-Tapia
- Ellen and Martin Prosserman Centre for Neuromuscular Disorders, Toronto General Hospital, Toronto, ON, Canada
| | - Mackenzie C Cervenka
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Monica B Dhakar
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
- Department of Neurology, Yale University School of Medicine, New Haven, CT, USA
| | - Mark R Etherton
- J. Phillip Kistler Stroke Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Celia Fung
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Robert Griggs
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Robert G Holloway
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Adam G Kelly
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Imad R Khan
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Karlo J Lizarraga
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Hannah G Madagan
- Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine, Room L3-100, 1149 Newell Drive, Gainesville, FL, 32611, USA
| | - Chidinma L Onweni
- Department of Critical Care Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - Humberto Mestre
- Center for Translational Neuromedicine, Department of Neurosurgery, University of Rochester Medical Center, Rochester, USA
| | | | - Clio Rubinos
- Department of Neurology, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | | | - Teddy S Youn
- Department of Neurology, Barrow Neurological Institute, Phoenix, AZ, USA
| | - Lisa H Merck
- Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, FL, USA
- Department of Health Outcomes and Biomedical Informatics, University of Florida College of Medicine, Gainesville, FL, USA
| | - Carolina B Maciel
- Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine, Room L3-100, 1149 Newell Drive, Gainesville, FL, 32611, USA
- Department of Neurosurgery, University of Florida College of Medicine, Gainesville, FL, USA
- Department of Neurology, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurology, University of Utah, Salt Lake City, UT, USA
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11
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Madsen JR, Boyle TP, Neuman MI, Park EH, Tamber MS, Hickey RW, Heuer GG, Zorc JJ, Leonard JR, Leonard JC, Keating R, Chamberlain JM, Frim DM, Zakrzewski P, Klinge P, Merck LH, Piatt J, Bennett JE, Sandberg DI, Boop FA, Hameed MQ. Diagnostic Accuracy of Non-Invasive Thermal Evaluation of Ventriculoperitoneal Shunt Flow in Shunt Malfunction: A Prospective, Multi-Site, Operator-Blinded Study. Neurosurgery 2020; 87:939-948. [PMID: 32459841 PMCID: PMC7566379 DOI: 10.1093/neuros/nyaa128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/27/2020] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Thermal flow evaluation (TFE) is a non-invasive method to assess ventriculoperitoneal shunt function. Flow detected by TFE is a negative predictor of the need for revision surgery. Further optimization of testing protocols, evaluation in multiple centers, and integration with clinical and imaging impressions prompted the current study. OBJECTIVE To compare the diagnostic accuracy of 2 TFE protocols, with micropumper (TFE+MP) or without (TFE-only), to neuro-imaging in patients emergently presenting with symptoms concerning for shunt malfunction. METHODS We performed a prospective multicenter operator-blinded trial of a consecutive series of patients who underwent evaluation for shunt malfunction. TFE was performed, and preimaging clinician impressions and imaging results were recorded. The primary outcome was shunt obstruction requiring neurosurgical revision within 7 d. Non-inferiority of the sensitivity of TFE vs neuro-imaging for detecting shunt obstruction was tested using a prospectively determined a priori margin of −2.5%. RESULTS We enrolled 406 patients at 10 centers. Of these, 68/348 (20%) evaluated with TFE+MP and 30/215 (14%) with TFE-only had shunt obstruction. The sensitivity for detecting obstruction was 100% (95% CI: 88%-100%) for TFE-only, 90% (95% CI: 80%-96%) for TFE+MP, 76% (95% CI: 65%-86%) for imaging in TFE+MP cohort, and 77% (95% CI: 58%-90%) for imaging in the TFE-only cohort. Difference in sensitivities between TFE methods and imaging did not exceed the non-inferiority margin. CONCLUSION TFE is non-inferior to imaging in ruling out shunt malfunction and may help avoid imaging and other steps. For this purpose, TFE only is favored over TFE+MP.
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Affiliation(s)
- Joseph R Madsen
- Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Tehnaz P Boyle
- Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
- Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | - Mark I Neuman
- Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Eun-Hyoung Park
- Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Mandeep S Tamber
- Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
- British Columbia Children's Hospital, University of British Columbia, Vancouver, Canada
| | - Robert W Hickey
- Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Gregory G Heuer
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Joseph J Zorc
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jeffrey R Leonard
- Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus, Ohio
| | - Julie C Leonard
- Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus, Ohio
| | - Robert Keating
- Children's National Medical Center, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia
| | - James M Chamberlain
- Children's National Medical Center, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia
| | - David M Frim
- The University of Chicago Comer Children's Hospital, Chicago, Illinois
| | - Paula Zakrzewski
- The University of Chicago Comer Children's Hospital, Chicago, Illinois
| | - Petra Klinge
- Rhode Island Hospital, Brown University, Providence, Rhode Island
| | - Lisa H Merck
- Rhode Island Hospital, Brown University, Providence, Rhode Island
- University of Florida College of Medicine, Gainesville, Florida
| | - Joseph Piatt
- Alfred I. DuPont Hospital for Children, Nemours Children's Health System, Wilmington, Delaware
| | - Jonathan E Bennett
- Alfred I. DuPont Hospital for Children, Nemours Children's Health System, Wilmington, Delaware
| | - David I Sandberg
- University of Texas Health Science Center at Houston, McGovern Medical School, Houston, Texas
| | - Frederick A Boop
- University of Tennessee Health Science Center, Memphis, Tennessee
| | - Mustafa Q Hameed
- Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
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12
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Wilson TT, Merck LH, Zonfrillo MR, Movson JS, Merck D. Efficacy of Computed Tomography Utilization in the Assessment of Acute Traumatic Brain Injury in Adult and Pediatric Emergency Department Patients. R I Med J (2013) 2019; 102:33-35. [PMID: 31675785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Computed tomography (CT) is commonly used to assess traumatic brain injury (TBI) in the emergency department (ED). Radiologists at a Level 1 trauma center implemented a novel tool, the RADiology CATegorization (RADCAT) system, to communicate injuries to clinicians in real time. Using this categorization system, we aimed to determine the rates of positive head CTs among pediatric and adult ED patients evaluated for TBI. METHODS We performed a retrospective analysis of all patients who received a head CT to assess for TBI. We classified head CTs using the RADCAT tool. On a 5-point scale, scores of 3 or less are considered normal or routine. Scores of 4-5 are considered high priority, representing findings such as intracranial bleeding. RESULTS Of the 5,341 head CT's obtained during the study period, 992 (18.5%) had high priority results (scores 4-5). A large number of pediatric studies, 30.8%, were positive for high priority results. Among the adult population, 18.0 % contained high priority results. CONCLUSION The pediatric population had a higher rate of high priority reads among those undergoing non- contrast head CT for TBI compared to adult patients.
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Affiliation(s)
- Taneisha T Wilson
- The Warren Alpert Medical School of Brown University, Department of Emergency Medicine
| | - Lisa H Merck
- The Warren Alpert Medical School of Brown University, Departments of Emergency Medicine, Diagnostic Imaging and Neurosurgery
| | - Mark R Zonfrillo
- The Warren Alpert Medical School of Brown University, Department of Emergency Medicine, Department of Pediatrics
| | - Jonathan S Movson
- The Warren Alpert Medical School of Brown University, Department of Diagnostic Imaging
| | - Derek Merck
- Brown University, Department of Diagnostic Imaging
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Frankel M, Fan L, Yeatts SD, Jeromin A, Vos PE, Wagner AK, Wolf BJ, Pauls Q, Lunney M, Merck LH, Hall CL, Palesch YY, Silbergleit R, Wright DW. Association of Very Early Serum Levels of S100B, Glial Fibrillary Acidic Protein, Ubiquitin C-Terminal Hydrolase-L1, and Spectrin Breakdown Product with Outcome in ProTECT III. J Neurotrauma 2019; 36:2863-2871. [PMID: 30794101 DOI: 10.1089/neu.2018.5809] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Rapid risk-stratification of patients with acute traumatic brain injury (TBI) would inform management decisions and prognostication. The objective of this serum biomarker study (Biomarkers of Injury and Outcome [BIO]-Progesterone for Traumatic Brain Injury, Experimental Clinical Treatment [ProTECT]) was to test the hypothesis that serum biomarkers of structural brain injury, measured at a single, very early time-point, add value beyond relevant clinical covariates when predicting unfavorable outcome 6 months after moderate-to-severe acute TBI. BIO-ProTECT utilized prospectively collected samples obtained from subjects with moderate-to-severe TBI enrolled in the ProTECT III clinical trial of progesterone. Serum samples were obtained within 4 h after injury. Glial fibrillary acidic protein (GFAP), S100B, αII-spectrin breakdown product of molecular weight 150 (SBDP150), and ubiquitin C-terminal hydrolase-L1 (UCH-L1) were measured. The association between log-transformed biomarker levels and poor outcome, defined by a Glasgow Outcome Scale-Extended (GOS-E) score of 1-4 at 6 months post-injury, were estimated via logistic regression. Prognostic models and a biomarker risk score were developed using bootstrapping techniques. Of 882 ProTECT III subjects, samples were available for 566. Each biomarker was associated with 6-month GOS-E (p < 0.001). Compared with a model containing baseline patient variables/characteristics, inclusion of S100B and GFAP significantly improved prognostic capacity (p ≤ 0.05 both comparisons); conversely, UCH-L1 and SBDP did not. A final predictive model incorporating baseline patient variables/characteristics and biomarker data (S100B and GFAP) had the best prognostic capability (area under the curve [AUC] = 0.85, 95% confidence interval [CI]: CI 0.81-0.89). Very early measurements of brain-specific biomarkers are independently associated with 6-month outcome after moderate-to-severe TBI and enhance outcome prediction.
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Affiliation(s)
- Michael Frankel
- Department of Neurology, Emory University School of Medicine and Grady Hospital, Atlanta, Georgia
| | - Liqiong Fan
- Novartis Institutes of Biomedical Research, Cambridge, Massachusetts
| | - Sharon D Yeatts
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | | | - Pieter E Vos
- Department of Neurology, Slingeland Hospital Doetinchem, The Netherlands
| | - Amy K Wagner
- Department of Physical Medicine and Rehabilitation and Neuroscience, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bethany J Wolf
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Qi Pauls
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | | | - Lisa H Merck
- Division of Emergency Neurosciences and Critical Care Research, The Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, Rhode Island
| | - Casey L Hall
- Department of Neurology, Emory University School of Medicine and Grady Hospital, Atlanta, Georgia
| | - Yuko Y Palesch
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Robert Silbergleit
- Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan
| | - David W Wright
- Department of Emergency Medicine, Emory University School of Medicine and Grady Hospital, Atlanta, Georgia
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Wira CR, Madsen TE, Chang BP, Nomura JT, Marcolini E, Gentile NT, Schreyer KE, Merck LH, Siket M, Greenberg K, Zammit CG, Jauch EC, Fernanda Bellolio M. Is There a Neurologist in the House? A Summary of the Current State of Neurovascular Rotations for Emergency Medicine Residents. AEM Educ Train 2018; 2:S56-S67. [PMID: 30607380 PMCID: PMC6304277 DOI: 10.1002/aet2.10200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 06/09/2023]
Abstract
OBJECTIVES Neurovascular and neurocritical care emergencies constitute a leading cause of morbidity/mortality. There has been great evolution in this field, including but not limited to extended time-window therapeutic interventions for acute ischemic stroke. The intent of this article is to evaluate the goals and future direction of clinical rotations in neurovascular and neurocritical care for emergency medicine (EM) residents. METHODS A panel of 13 board-certified emergency physicians from the Society for Academic Emergency Medicine (SAEM) neurologic emergencies interest group (IG) convened in response to a call for publications-three with fellowship training/board certification in stroke and/or neurocritical care; five with advanced research degrees; three who have been authors on national practice guidelines; and six who have held clinical duties within neurology, neurosurgery, or neurocritical care. A mixed-methods analysis was performed including a review of the literature, a survey of Council of Emergency Medicine Residency Directors (CORD) residency leaders/faculty and SAEM neuro-IG members, and a consensus review by this panel of select neurology rotations provided by IG faculty. RESULTS Thirteen articles for residency neurovascular education were identified: three studies on curriculum, three studies evaluating knowledge, and seven studies evaluating knowledge after an educational intervention. Intervention outcomes included the ability to recognize and manage acute strokes, manage intracerebral hemorrhage, calculate National Institutes of Health Stroke Scale (NIHSS), and interpret images. In the survey sent to CORD residency leaders and neuro-IG faculty, response was obtained from 48 programs. A total of 52.1% indicated having a required rotation (6.2% general neurology, 2% stroke service, 18.8% neurologic intensive care unit, 2% neurosurgery, 22.9% on a combination of services). The majority of programs with required rotations have a combination rotation (residents rotate through multiple services) and evaluations were positive. CONCLUSIONS Variability exists in the availability of neurovascular/neurocritical care rotations for EM trainees. Dedicated clinical time in neurologic education was beneficial to participants. Given recent advancements in the field, augmentation of EM residency training in this area merits strong consideration.
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Affiliation(s)
- Charles R. Wira
- Yale Department of Emergency MedicineYale Division of Cerebrovascular DiseasesDepartment of NeurologyYale School of MedicineNew HavenCT
| | - Tracy E. Madsen
- Department of Emergency MedicineThe Warren Alpert Medical School of Brown UniversityProvidenceRI
| | - Bernard P. Chang
- Department of Emergency MedicineColumbia University Medical CenterNew YorkNY
| | - Jason T. Nomura
- Christiana Care Health SystemNeurosciences Service LineNewarkDE
| | - Evie Marcolini
- Departments of Surgery and NeurologyUniversity of Vermont College of MedicineBurlingtonVT
| | - Nina T. Gentile
- Department of Emergency MedicineTemple University HospitalPhiladelphiaPA
| | | | - Lisa H. Merck
- Division of Emergency Neurosciences and Critical Care ResearchDepartment of Emergency Medicine and Diagnostic ImagingThe Warren Alpert Medical School of Brown UniversityProvidenceRI
| | - Matthew Siket
- Department of Emergency MedicineThe Warren Alpert Medical School of Brown UniversityProvidenceRI
| | - Karen Greenberg
- Global Neurosciences InstituteCrozer Neurologic Emergency DepartmentCrozer Chester Medical CenterUplandPA
| | - Christopher G. Zammit
- Departments of Emergency MedicineNeurology& NeurosurgeryUniversity of Rochester Medical CenterRochesterNY
| | - Edward C. Jauch
- Mission Research Institute/Mission HealthAshevilleNC
- Department of Emergency MedicineMedical University of South CarolinaCharlestonSC
- Departments of Emergency Medicine and NeurologyUniversity of North Carolina– Chapel HillChapel HillNC
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15
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Nuño T, Denninghoff KR, Pauls Q, Yeatts SD, Silbergleit R, Palesch YY, Merck LH, Manley G, Wright DW. Reply to: Prehospital Intubation: Further Confounders in Trial Results. PREHOSP EMERG CARE 2018; 22:537. [DOI: 10.1080/10903127.2017.1408729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
The integrity of the research enterprise is of the utmost importance for the advancement of safe and effective medical practice for patients and for maintaining the public trust in health care. Academic societies and editors of journals are key participants in guarding scientific integrity. Avoiding and preventing plagiarism helps to preserve the scientific integrity of professional presentations and publications. The Society for Academic Emergency Medicine (SAEM) Ethics Committee discusses current issues in scientific publishing integrity and provides a guideline to avoid plagiarism in SAEM presentations and publications.
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Affiliation(s)
- Shellie L. Asher
- Department of Emergency Medicine; Albany Medical College; Albany NY
| | | | - Lisa H. Merck
- Departments of Emergency Medicine; Diagnostic Imaging, and Neurosurgery, Brown University; Providence RI
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17
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Denninghoff KR, Nuño T, Pauls Q, Yeatts SD, Silbergleit R, Palesch YY, Merck LH, Manley GT, Wright DW. Prehospital Intubation is Associated with Favorable Outcomes and Lower Mortality in ProTECT III. PREHOSP EMERG CARE 2017; 21:539-544. [PMID: 28489506 PMCID: PMC7225216 DOI: 10.1080/10903127.2017.1315201] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/29/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Traumatic brain injury (TBI) causes more than 2.5 million emergency department visits, hospitalizations, or deaths annually. Prehospital endotracheal intubation has been associated with poor outcomes in patients with TBI in several retrospective observational studies. We evaluated the relationship between prehospital intubation, functional outcomes, and mortality using high quality data on clinical practice collected prospectively during a randomized multicenter clinical trial. METHODS ProTECT III was a multicenter randomized, double-blind, placebo-controlled trial of early administration of progesterone in 882 patients with acute moderate to severe nonpenetrating TBI. Patients were excluded if they had an index GCS of 3 and nonreactive pupils, those with withdrawal of life support on arrival, and if they had documented prolonged hypotension and/or hypoxia. Prehospital intubation was performed as per local clinical protocol in each participating EMS system. Models for favorable outcome and mortality included prehospital intubation, method of transport, index GCS, age, race, and ethnicity as independent variables. Significance was set at α = 0.05. Favorable outcome was defined by a stratified dichotomy of the GOS-E scores in which the definition of favorable outcome depended on the severity of the initial injury. RESULTS Favorable outcome was more frequent in the 349 subjects with prehospital intubation (57.3%) than in the other 533 patients (46.0%, p = 0.003). Mortality was also lower in the prehospital intubation group (13.8% v. 19.5%, p = 0.03). Logistic regression analysis of prehospital intubation and mortality, adjusted for index GCS, showed that odds of dying for those with prehospital intubation were 47% lower than for those that were not intubated (OR = 0.53, 95% CI = 0.36-0.78). 279 patients with prehospital intubation were transported by air. Modeling transport method and mortality, adjusted for index GCS, showed increased odds of dying in those transported by ground compared to those transported by air (OR = 2.10, 95% CI = 1.40-3.15). Decreased odds of dying trended among those with prehospital intubation adjusted for transport method, index GCS score at randomization, age, and race/ethnicity (OR = 0.70, 95% CI = 0.37-1.31). CONCLUSIONS In this study that excluded moribund patients, prehospital intubation was performed primarily in patients transported by air. Prehospital intubation and air medical transport together were associated with favorable outcomes and lower mortality. Prehospital intubation was not associated with increased morbidity or mortality regardless of transport method or severity of injury.
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18
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Miller JB, Merck LH, Wira CR, Meurer WJ, Schrock JW, Nomura JT, Siket MS, Madsen TE, Wright DW, Panagos PD, Lewandowski C. The Advanced Reperfusion Era: Implications for Emergency Systems of Ischemic Stroke Care. Ann Emerg Med 2017; 69:192-201. [DOI: 10.1016/j.annemergmed.2016.06.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 06/16/2016] [Accepted: 06/24/2016] [Indexed: 11/30/2022]
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19
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Sabbatini AK, Merck LH, Froemming AT, Vaughan W, Brown MD, Hess EP, Applegate KE, Comfere NI. Optimizing Patient-centered Communication and Multidisciplinary Care Coordination in Emergency Diagnostic Imaging: A Research Agenda. Acad Emerg Med 2015; 22:1427-34. [PMID: 26575785 DOI: 10.1111/acem.12826] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 07/06/2015] [Indexed: 12/17/2022]
Abstract
Patient-centered emergency diagnostic imaging relies on efficient communication and multispecialty care coordination to ensure optimal imaging utilization. The construct of the emergency diagnostic imaging care coordination cycle with three main phases (pretest, test, and posttest) provides a useful framework to evaluate care coordination in patient-centered emergency diagnostic imaging. This article summarizes findings reached during the patient-centered outcomes session of the 2015 Academic Emergency Medicine consensus conference "Diagnostic Imaging in the Emergency Department: A Research Agenda to Optimize Utilization." The primary objective was to develop a research agenda focused on 1) defining component parts of the emergency diagnostic imaging care coordination process, 2) identifying gaps in communication that affect emergency diagnostic imaging, and 3) defining optimal methods of communication and multidisciplinary care coordination that ensure patient-centered emergency diagnostic imaging. Prioritized research questions provided the framework to define a research agenda for multidisciplinary care coordination in emergency diagnostic imaging.
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Affiliation(s)
| | - Lisa H. Merck
- Department of Emergency Medicine; Brown University; Providence RI
- Department of Diagnostic Imaging; Brown University; Providence RI
| | | | | | - Michael D. Brown
- Department of Emergency Medicine; Michigan State University; Grand Rapids MI
| | - Erik P. Hess
- Department of Emergency Medicine; Mayo Clinic; Rochester MN
- Knowledge and Evaluation Research Unit; Division of Healthcare Policy Research; Department of Health Services Research; Robert D. and Patricia E. Kern Center for the Science of Healthcare Delivery; Mayo Clinic; Rochester MN
| | - Kimberly E. Applegate
- Department of Radiology and Imaging Sciences; Emory University School of Medicine; Atlanta GA
| | - Nneka I. Comfere
- Department of Dermatology; Laboratory Medicine & Pathology; Mayo Clinic; Rochester MN
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20
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Merck LH, Ward LA, Applegate KE, Choo E, Lowery-North DW, Heilpern KL. Written Informed Consent for Computed Tomography of the Abdomen/Pelvis is Associated with Decreased CT Utilization in Low-Risk Emergency Department Patients. West J Emerg Med 2015; 16:1014-24. [PMID: 26759646 PMCID: PMC4703183 DOI: 10.5811/westjem.2015.9.27612] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/21/2015] [Accepted: 09/27/2015] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION The increasing rate of patient exposure to radiation from computerized tomography (CT) raises questions about appropriateness of utilization. There is no current standard to employ informed consent for CT (ICCT). Our study assessed the relationship between informed consent and CT utilization in emergency department (ED) patients. METHODS An observational multiphase before-after cohort study was completed from 4/2010-5/2011. We assessed CT utilization before and after (Time I/Time II) the implementation of an informed consent protocol. Adult patients were included if they presented with symptoms of abdominal/pelvic pathology or completed ED CT. We excluded patients with pregnancy, trauma, or altered mental status. Data on history, exam, diagnostics, and disposition were collected via standard abstraction tool. We generated a multivariate logistic model via stepwise regression, to assess CT utilization across risk groups. Logistic models, stratified by risk, were generated to include study phase and a propensity score that controlled for potential confounders of CT utilization. RESULTS 7,684 patients met inclusion criteria. In PHASE 2, there was a 24% (95% CI [10-36%]) reduction in CT utilization in the low-risk patient group (p<0.002). ICCT did not affect CT utilization in the high-risk group (p=0.16). In low-risk patients, the propensity score was significant (p<0.001). There were no adverse events reported during the study period. CONCLUSION The implementation of ICCT was associated with reduced CT utilization in low-risk ED patients. ICCT has the potential to increase informed, shared decision making with patients, as well as to reduce the risks and cost associated with CT.
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Affiliation(s)
- Lisa H. Merck
- The Warren Alpert Medical School of Brown University, Department of Emergency Medicine and Diagnostic Imaging, Providence, Rhode Island
| | - Laura A. Ward
- Rollins School of Public Health, Department of Biostatistics, Emory University, Atlanta, Georgia
| | - Kimberly E. Applegate
- Emory University School of Medicine, Department of Radiology and Imaging Sciences, Atlanta, Georgia
| | - Esther Choo
- The Warren Alpert Medical School of Brown University, Department of Emergency Medicine, Providence, Rhode Island
| | - Douglas W. Lowery-North
- Emory University School of Medicine and Grady Memorial Hospital, Department of Emergency Medicine, Atlanta, Georgia
| | - Katherine L. Heilpern
- Emory University School of Medicine and Grady Memorial Hospital, Department of Emergency Medicine, Atlanta, Georgia
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21
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Kanzaria HK, McCabe AM, Meisel ZM, LeBlanc A, Schaffer JT, Bellolio MF, Vaughan W, Merck LH, Applegate KE, Hollander JE, Grudzen CR, Mills AM, Carpenter CR, Hess EP. Advancing Patient-centered Outcomes in Emergency Diagnostic Imaging: A Research Agenda. Acad Emerg Med 2015; 22:1435-46. [PMID: 26574729 DOI: 10.1111/acem.12832] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 07/13/2015] [Indexed: 01/01/2023]
Abstract
Diagnostic imaging is integral to the evaluation of many emergency department (ED) patients. However, relatively little effort has been devoted to patient-centered outcomes research (PCOR) in emergency diagnostic imaging. This article provides background on this topic and the conclusions of the 2015 Academic Emergency Medicine consensus conference PCOR work group regarding "Diagnostic Imaging in the Emergency Department: A Research Agenda to Optimize Utilization." The goal was to determine a prioritized research agenda to establish which outcomes related to emergency diagnostic imaging are most important to patients, caregivers, and other key stakeholders and which methods will most optimally engage patients in the decision to undergo imaging. Case vignettes are used to emphasize these concepts as they relate to a patient's decision to seek care at an ED and the care received there. The authors discuss applicable research methods and approaches such as shared decision-making that could facilitate better integration of patient-centered outcomes and patient-reported outcomes into decisions regarding emergency diagnostic imaging. Finally, based on a modified Delphi process involving members of the PCOR work group, prioritized research questions are proposed to advance the science of patient-centered outcomes in ED diagnostic imaging.
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Affiliation(s)
- Hemal K. Kanzaria
- Department of Emergency Medicine; University of California San Francisco & San Francisco General Hospital; San Francisco CA
- Robert Wood Johnson Clinical Scholars Program and the U.S. Department of Veterans Affairs; Los Angeles CA
- RAND Health; Santa Monica CA
| | - Aileen M. McCabe
- Department of Emergency Medicine; Perelman School of Medicine at the University of Pennsylvania; Philadelphia PA
- Emergency Care Research Unit; Division of Population Health Sciences; Royal College of Surgeons in Ireland; Dublin Ireland
| | - Zachary M. Meisel
- Department of Emergency Medicine; Perelman School of Medicine at the University of Pennsylvania; Philadelphia PA
- Center for Emergency Care Policy & Research; Perelman School of Medicine, and the Leonard Davis Institute of Health Economics; University of Pennsylvania; Philadelphia PA
| | - Annie LeBlanc
- Division of Health Care Policy and Research; Department of Health Sciences Research; Knowledge and Evaluation Research Unit; Mayo Clinic; Rochester MN
| | - Jason T. Schaffer
- Department of Emergency Medicine; Indiana University School of Medicine; Indianapolis IN
| | - M. Fernanda Bellolio
- Department of Emergency Medicine; Mayo Clinic; Rochester MN
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery; Mayo Clinic; Rochester MN
| | | | - Lisa H. Merck
- Department of Emergency Medicine; The Warren Alpert Medical School of Brown University; Providence RI
- Department of Diagnostic Imaging; The Warren Alpert Medical School of Brown University; Providence RI
| | - Kimberly E. Applegate
- Department of Radiology and Imaging Sciences; Emory University School of Medicine; Atlanta GA
| | - Judd E. Hollander
- Department of Emergency Medicine; Sidney Kimmel Medical College of Thomas Jefferson University; Philadelphia PA
- National Academic Center for Telehealth; Philadelphia PA
| | - Corita R. Grudzen
- Department of Emergency Medicine; New York University; New York NY
- Department Population Health; New York University; New York NY
| | - Angela M. Mills
- Emergency Care Research Unit; Division of Population Health Sciences; Royal College of Surgeons in Ireland; Dublin Ireland
| | - Christopher R. Carpenter
- Division of Emergency Medicine; Washington University School of Medicine, and the Washington University Emergency Care Research Core; St. Louis MO
| | - Erik P. Hess
- Department of Emergency Medicine; Mayo Clinic; Rochester MN
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery; Mayo Clinic; Rochester MN
- Knowledge and Evaluation Research Unit; Division of Healthcare Policy Research; Department of Health Sciences Research; Mayo Clinic; Rochester MN
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22
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Miller JB, Heitsch L, Siket MS, Schrock JW, Wira CR, Lewandowski C, Madsen TE, Merck LH, Wright DW. The Emergency Medicine Debate on tPA for Stroke: What Is Best for Our Patients? Efficacy in the First Three Hours. Acad Emerg Med 2015; 22:852-5. [PMID: 26113369 DOI: 10.1111/acem.12712] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Joseph B. Miller
- Department of Emergency Medicine; Henry Ford Hospital; Detroit MI
| | - Laura Heitsch
- Department of Emergency Medicine; Washington University School of Medicine; St. Louis MO
| | - Matthew S. Siket
- Department of Emergency Medicine; Alpert Medical School of Brown University; Providence RI
| | - Jon W. Schrock
- Department of Emergency Medicine; Case Western Reserve University School of Medicine; Cleveland OH
| | - Charles R. Wira
- Department of Emergency Medicine; Yale School of Medicine; New Haven CT
| | | | - Tracy E. Madsen
- Department of Emergency Medicine; Alpert Medical School of Brown University; Providence RI
| | - Lisa H. Merck
- Department of Emergency Medicine; Alpert Medical School of Brown University; Providence RI
| | - David W. Wright
- Department of Emergency Medicine; Emory University; Atlanta GA
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23
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Madsen TE, Merck LH, SIket MS, Paolucci G, Tran MT, Silver B. Abstract T P217: Sex Differences in Clinical Presentation and Outcome: Patients Admitted to a Transient Ischemic Attack Emergency Department Observation Unit. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.tp217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
There are known sex differences in presenting symptoms and outcomes of stroke patients, yet little is known about sex differences in patients with transient ischemic attack (TIA). Our aim is to conduct an exploratory study of sex differences in symptoms, clinical characteristics, and outcomes among patients admitted to an ED observation unit (OU).
Methods:
Patients seen in a large, urban, academic ED with a diagnosis of TIA and admitted to the ED OU between 4/13 and 3/14 were included. Patients were excluded if they had persistent neurological deficits, fever >100.4, heart rate <60 / >100 bpm, SBP >180 / < 100 mm Hg, pulse ox <93%, or other competing ED diagnoses. Patients were evaluated using standard blood tests, EKG, echocardiogram, ED MRI/A of the head and neck, and neurology consultation. Using bivariate analyses, women and men were compared with respect to presenting symptoms, risk factors, acute infarct on MRI/A, and recurrence of symptoms. The study was approved by the hospital IRB. Analyses were conducted using Stata 12.1.
Results:
136 patients met inclusion criteria; 52.2% were women. Women and men were similar in mean age (63.8, 95% CI 59.2 - 68.4, vs. 65.4, 95%CI 61.7 - 69.0) and percent non-white (22.5% vs. 24.6%, p=0.78). More women than men reported motor symptoms (53.5% vs. 30.8%, p=0.007), while more men reported visual changes (24.6% vs. 9.9%, p=0.02), dizziness (30.8% vs. 19.7%, p = 0.14), and symptoms coded as ‘other’ (36.9% vs. 22.5%, p=0.07). Women had longer median times of symptom duration (60 min, IQR 10 - 120, vs. 30 min, IQR 10 - 90). 25.5% of women vs. 22.0% of men had acute infarcts on MRI/A (p=0.68), and 5.7% of women compared to 1.5% of men reported recurrence of symptoms at 30 days (p=0.21).
Conclusions:
In our exploratory study of sex differences in ED TIA patients, women were less likely to report “non-traditional” symptoms, a finding contrary to current literature in stroke patients. Although these findings should be investigated in future studies of TIA patients, this may suggest an inherent bias in those referred to an ED TIA OU. Future studies should investigate potential sex differences in disposition to admission versus observation unit after TIA, cerebral distribution of acute vascular event, and the recurrence of symptoms.
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Affiliation(s)
- Tracy E Madsen
- Emergency Medicine, Warren Alpert Med Sch of Brown Univ/ Rhode Island Hosp, Providence, RI
| | - Lisa H Merck
- Emergency Medicine, Warren Alpert Med Sch of Brown Univ/ Rhode Island Hosp, Providence, RI
| | - Matthew S SIket
- Emergency Medicine, Warren Alpert Med Sch of Brown Univ/ Rhode Island Hosp, Providence, RI
| | | | - My T Tran
- Emergency Medicine/ Neurology, Rhode Island Hosp, Providence, RI
| | - Brian Silver
- Neurology, Warren Alpert Med Sch of Brown Univ/ Rhode Island Hosp, Providence, RI
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24
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Siket MS, Tran VM, Baird JR, Madsen TE, Merck LH, Napoli AM, Paolucci G, Seigel TA, Silver B. Abstract W P185: Clinical Predictors of Stroke, TIA and Mimic among Patients with Transient Neurological Dysfunction Admitted to an Emergency Department Observation Unit. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.wp185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
In patients with resolved symptoms, transient ischemic attack (TIA) is distinguished from ischemic stroke by neuroimaging evidence of acute infarction. DW-MRI has been shown to be more sensitive at detecting infarction than CT, but is not uniformly available in the acute setting.
Hypothesis:
We sought to identify predictors of stroke diagnosis among a cohort of clinically suspected TIA patients undergoing an accelerated diagnostic protocol in an emergency department observation unit (EDOU).
Methods:
We prospectively studied 189 patients treated in the EDOU of a single tertiary care academic medical center. Patients underwent DW-MRI of the brain (unless contraindicated), and bedside neurologist evaluation. A CT scan of the brain was considered optional prior to EDOU admission. We compared the odds of extremity weakness, sensory loss, facial droop, visual disturbance, slurred speech, aphasia, dizziness, and headache between patients with final diagnosis of stroke, TIA and mimic. This study was approved by the hospital IRB.
Results:
Thirty-one patients (16%) were diagnosed with an acute ischemic stroke, 85 (45%) TIA, and 73 (39%) mimic. Mean age was 64.8 years (SD = 15.5; range = 30-90). DW-MRI was performed on 92% of patients. A CT scan was also performed in 80% of patients diagnosed with stroke and 0 were diagnostic. Median ABCD2 scores were 4 for stroke and TIA (IQR 3-5) and 3 for mimic (IQR 2-4). Only headache symptoms predicted lower odds of stroke (OR 0.22; 95% CI: 0.05-0.96). Both headache (OR 1.44; 95% CI: 1.03-2.03) and visual disturbance (OR 3.14; 95% CI: 1.49-6.65) increased the odds of mimic diagnosis, but were also present in 13% and 10% of stroke patients respectively. Slurred speech (OR 0.48: 95% CI: 0.25-0.93); aphasia (OR 0.34 95% CI: 0.15-0.76) and facial droop (OR 90.36: 95% CI: 0.14-0.94) significantly predicted lower odds of mimic diagnosis.
Conclusions:
In our investigation of patients with transient neurologic dysfunction in an EDOU, stroke diagnosis was common and could not be predicted by clinical variables alone. Early DW-MRI should be considered in all TIA patients, especially those reporting slurred speech, aphasia or facial droop.
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Affiliation(s)
- Matthew S Siket
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Virginia M Tran
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Janette R Baird
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Tracy E Madsen
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Lisa H Merck
- Emergency Medicine, Radiology, Alpert Med Sch of Brown Univ, Providence, RI
| | - Anthony M Napoli
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Gino Paolucci
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | | | - Brian Silver
- Neurology, Alpert Med Sch of Brown Univ, Providence, RI
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25
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Siket MS, Ndon IU, Baird JR, Madsen TE, Merck LH, Napoli AM, Paolucci G, Seigel TA, Tran VM, Silver B. Abstract T MP74: The Diagnosis, Etiologic Classification, and Safe Discharge of Ischemic Strokes with Transient Symptoms from an Emergency Department Observation Unit. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.tmp74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Patients with a clinical diagnosis of transient ischemic attack (TIA) who have imaging evidence of infarction portend a high risk of short-term recurrent stroke. Emergency Department Observation Units (EDOU) offer an alternative to hospital admission and are becoming increasingly utilized for acute cerebrovascular emergencies.
Hypothesis:
We sought to determine whether an EDOU protocol emphasizing etiologic determination and individualized secondary prevention could be a safe alternative to hospital admission for suspected TIA patients with and without brain infarction.
Methods:
We prospectively studied 189 patients admitted to the TIA EDOU of a single tertiary care academic medical center. There was no ABCD2 cutoff for eligibility and exclusion criteria included persistent deficits or another diagnosis warranting hospitalization. Patients underwent DW-MRI/MRA of the head and neck unless contraindicated, transthoracic echocardiogram and bedside neurologist evaluation. Etiologic subtyping was determined using the Causative Classification System (CCS). 30-day follow-up was performed on all patients by telephone and/or review of medical records. This study was approved by the hospital IRB.
Results:
Acute ischemic stroke was diagnosed in 31 (16%) of patients, including 30 with DWI lesions and 1 in whom MRI was contraindicated, but had clinical worsening while in the EDOU. An evident or probable etiology was determined by CCS subtyping in 38% of strokes and 32% of TIAs (17% atherosclerosis, 12% cardioembolism, 5% small vessel). Of the total cohort, 84% were discharged from the EDOU including 16 (52%) with confirmed stroke. Median LOS was 22 hours (IQR: 17-25). At 30 days, one patient was found to have a small recurrent stroke (0.7%). There was 1 non-stroke related death. Twenty (11%) overall returned to the ED, the vast majority (70%) from the non-stroke cohort.
Conclusions:
Not all ischemic stroke patients require hospitalization. An EDOU is a safe and effective alternative for the complete diagnostic evaluation and management of patients with transient neurologic symptoms. Further study of cost and quality effectiveness in warranted.
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Affiliation(s)
- Matthew S Siket
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | | | - Janette R Baird
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Tracy E Madsen
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Lisa H Merck
- Emergency Medicine, Radiology, Alpert Med Sch of Brown Univ, Providence, RI
| | - Anthony M Napoli
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Gino Paolucci
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | | | - Virginia M Tran
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Brian Silver
- Neurology, Alpert Med Sch of Brown Univ, Providence, RI
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Wright DW, Yeatts SD, Silbergleit R, Palesch YY, Hertzberg VS, Frankel M, Goldstein FC, Caveney AF, Howlett-Smith H, Bengelink EM, Manley GT, Merck LH, Janis LS, Barsan WG. Very early administration of progesterone for acute traumatic brain injury. N Engl J Med 2014; 371:2457-66. [PMID: 25493974 PMCID: PMC4303469 DOI: 10.1056/nejmoa1404304] [Citation(s) in RCA: 389] [Impact Index Per Article: 38.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) is a major cause of death and disability worldwide. Progesterone has been shown to improve neurologic outcome in multiple experimental models and two early-phase trials involving patients with TBI. METHODS We conducted a double-blind, multicenter clinical trial in which patients with severe, moderate-to-severe, or moderate acute TBI (Glasgow Coma Scale score of 4 to 12, on a scale from 3 to 15, with lower scores indicating a lower level of consciousness) were randomly assigned to intravenous progesterone or placebo, with the study treatment initiated within 4 hours after injury and administered for a total of 96 hours. Efficacy was defined as an increase of 10 percentage points in the proportion of patients with a favorable outcome, as determined with the use of the stratified dichotomy of the Extended Glasgow Outcome Scale score at 6 months after injury. Secondary outcomes included mortality and the Disability Rating Scale score. RESULTS A total of 882 of the planned sample of 1140 patients underwent randomization before the trial was stopped for futility with respect to the primary outcome. The study groups were similar with regard to baseline characteristics; the median age of the patients was 35 years, 73.7% were men, 15.2% were black, and the mean Injury Severity Score was 24.4 (on a scale from 0 to 75, with higher scores indicating greater severity). The most frequent mechanism of injury was a motor vehicle accident. There was no significant difference between the progesterone group and the placebo group in the proportion of patients with a favorable outcome (relative benefit of progesterone, 0.95; 95% confidence interval [CI], 0.85 to 1.06; P=0.35). Phlebitis or thrombophlebitis was more frequent in the progesterone group than in the placebo group (relative risk, 3.03; CI, 1.96 to 4.66). There were no significant differences in the other prespecified safety outcomes. CONCLUSIONS This clinical trial did not show a benefit of progesterone over placebo in the improvement of outcomes in patients with acute TBI. (Funded by the National Institute of Neurological Disorders and Stroke and others; PROTECT III ClinicalTrials.gov number, NCT00822900.).
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Affiliation(s)
- David W Wright
- From the Departments of Emergency Medicine (D.W.W., H.H.-S.) and Neurology (M.F., F.C.G.), Emory University School of Medicine and Grady Memorial Hospital, and the Department of Biostatistics, Rollins School of Public Health, Emory University (V.S.H.) - all in Atlanta; the Department of Public Health Sciences, Medical University of South Carolina, Charleston (S.D.Y., Y.Y.P.); the Departments of Emergency Medicine (R.S., E.M.B., W.G.B.) and Psychiatry (A.F.C.), University of Michigan, Ann Arbor; the Department of Neurosurgery, University of California, San Francisco, San Francisco (G.T.M.); the Department of Emergency Medicine, Warren Alpert Medical School of Brown University, Providence, RI (L.H.M.); and the National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (L.S.J.)
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Wright DW, Espinoza TR, Merck LH, Ratcliff JJ, Backster A, Stein DG. Gender differences in neurological emergencies part II: a consensus summary and research agenda on traumatic brain injury. Acad Emerg Med 2014; 21:1414-20. [PMID: 25420582 PMCID: PMC4311997 DOI: 10.1111/acem.12532] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 07/03/2014] [Accepted: 07/29/2014] [Indexed: 12/30/2022]
Abstract
Traumatic brain injury (TBI) is a major cause of death and disability worldwide. There is strong evidence that gender and sex play an important role across the spectrum of TBI, from pathophysiology to clinical care. In May 2014, Academic Emergency Medicine held a consensus conference "Gender-Specific Research in Emergency Care: Investigate, Understand, and Translate How Gender Affects Patient Outcomes." A TBI working group was formed to explore what was known about the influence of sex and gender on TBI and to identify gaps for future research. The findings resulted in four major recommendations to guide the TBI research agenda.
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Affiliation(s)
- David W Wright
- Emergency Neurosciences, Department of Emergency Medicine, Emory University, Atlanta, GA
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Siket MS, Silver B, Seigel TA, Paolucci G, Pezzullo JA, Rogg J, Gibbs FJ, Merck LH. Abstract T P183: Transient Neurological Symptoms with MRI Evidence of Infarction in an Emergency Department Observation Unit. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.tp183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Transient symptoms with infarction (TSI) is distinguished from transient ischemic attack (TIA) by the presence of diffusion-weighted imaging (DWI) lesions on MRI. We report a series of patients with DWI lesions identified in an emergency department observation unit (EDOU) TIA protocol.
Methods:
Patients were treated in the ED of a tertiary care center (annual census=100,000 visits). In the first 3 months of operation of an EDOU for TIA, 50 patients met inclusion criteria of sudden/transient neurological deficit in the absence of known metabolic or cardiac source. Patients were excluded from the study if they demonstrated: persistent or stuttering deficits; fever >100.4F, heart rate <60 or >100 bpm; SBP >180 or <100mmHg; pulse ox <93%; or positive CT. Evaluation included: laboratory analyses; CT/MRI/MRA of the head/neck; EKG; echocardiogram, and neurology consult. MR data (ED 1.5T MR unit) include: DWI, ADC, GRE, and T2FLAIR images. Patients with TSI, were identified by the presence of 1 or more DWI bright and ADC dark lesions on ED MRI. All patients completed CT and MR imaging within < 24 hours of admission. This study was approved by the hospital IRB.
Results:
TSI was identified in 10/50 EDOU patients (Mdn age 72.5, ABCD2 score 5). Two patients demonstrated infarcts in multiple vascular territories. Table 1 illustrates patient demographics, comorbidities, presentations, and outcome. Fifty percent of TSI patients were admitted from EDOU, 3 patients returned to the ED within 30 days , and no 30 day distinct recurrent events, such as recurrent stroke were identified.
Conclusions:
EDOU for TIA including DW-MRI resulted in TSI diagnosis in 20% of patients. In the TSI cases identified, infarct locations were heterogeneous; vascular and/or cardiac etiology must be considered. Longitudinal analysis is recommended to further assess the relationship between presentation, TSI risk, risk of recurrent stroke, and need for hospital admission.
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Affiliation(s)
- Matthew S Siket
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Brian Silver
- Neurology, Alpert Med Sch of Brown Univ, Providence, RI
| | - Todd A Seigel
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Gino Paolucci
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - John A Pezzullo
- Diagnostic Imaging, Alpert Med Sch of Brown Univ, Providence, RI
| | - Jeffrey Rogg
- Diagnostic Imaging, Alpert Med Sch of Brown Univ, Providence, RI
| | - Frantz J Gibbs
- Emergency Medicine, Alpert Med Sch of Brown Univ, Providence, RI
| | - Lisa H Merck
- Emergency Medicine and Diagnostic Imaging, Alpert Med Sch of Brown Univ, Providence, RI
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Looney CB, Smith JK, Merck LH, Wolfe HM, Chescheir NC, Hamer RM, Gilmore JH. Intracranial Hemorrhage in Asymptomatic Neonates: Prevalence on MR Images and Relationship to Obstetric and Neonatal Risk Factors. Radiology 2007; 242:535-41. [PMID: 17179400 DOI: 10.1148/radiol.2422060133] [Citation(s) in RCA: 182] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To retrospectively evaluate the prevalence of neonatal intracranial hemorrhage (ICH) and its relationship to obstetric and neonatal risk factors. MATERIALS AND METHODS Pregnant women were recruited for a prospective study of neonatal brain development; the study was approved by the institutional review board and complied with HIPAA regulations. After informed consent was obtained from a parent, neonates were imaged with 3.0-T magnetic resonance (MR) imaging without sedation. The images were reviewed by a neuroradiologist with 12 years of experience for the presence of ICH. Medical records were prospectively and retrospectively reviewed for selected risk factors, which included method of delivery, duration of labor, and evidence of maternal or neonatal birth trauma. Risk factors were assessed for relationship to ICH by using Fisher exact test statistics. RESULTS Ninety-seven neonates (mean age at MR imaging, 20.8 days +/- 6.9 [standard deviation]) underwent MR imaging between the ages of 1 and 5 weeks. Eighty-eight (44 male and 44 female) neonates (65 with vaginal delivery and 23 with cesarean delivery) completed the MR imaging evaluation. Seventeen neonates with ICHs (16 subdural, two subarachnoid, and six parenchymal hemorrhages) were identified. Seven infants had two or more types of hemorrhages. All neonates with ICH were delivered vaginally, with a prevalence of 26% in vaginal births. ICH was significantly associated with vaginal birth (P < .005) but not with prolonged duration of labor or with traumatic or assisted vaginal birth. CONCLUSION Asymptomatic ICH following vaginal birth in full-term neonates appears to be common, with a prevalence of 26% in this study.
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Affiliation(s)
- Christopher B Looney
- Department of Psychiatry, CB No. 7160, 7025A Neurosciences Hospital, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7160, USA
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