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Naylor JF, April MD, Hill GJ, Kempski KM, Arana AA, Schauer SG. THAM Administration to Pediatric Trauma Patients in a Combat Zone. South Med J 2019; 111:453-456. [PMID: 30075467 DOI: 10.14423/smj.0000000000000843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES Pediatric casualties made up a significant proportion of patients during the recent military conflicts in Iraq and Afghanistan. Damage control resuscitation strategies used by military physicians included rapid reversal of metabolic acidosis to mitigate its pathophysiologic consequences, primarily through hemorrhage control and volume restoration. Alkalizing agents, including tris(hydroxymethyl)aminomethane (THAM), are potential therapeutic adjuncts to treat significant acidosis. There is, however, limited published data on THAM administration in the pediatric trauma population. We compared demographics and outcomes among pediatric trauma patients in Afghanistan and Iraq receiving THAM versus those not receiving THAM. METHODS We queried the Department of Defense Trauma Registry for all of the pediatric patients admitted to US and Coalition fixed-facility hospitals in Afghanistan and Iraq from January 2007 to January 2016. We retrieved data on age, sex, location, mechanism of injury, Injury Severity Scores, ventilator days, days in the intensive care unit, days of total hospitalization, and survival to hospital discharge. We excluded subjects if they were dead on arrival to the emergency department. RESULTS From January 2007 to January 2016, there were 3386 pediatric subjects that met our inclusion criteria. Of these, 15 received THAM. The youngest subject receiving THAM was a 2-month-old burn victim. Subjects receiving THAM were more likely to be injured by submersion or burn (P < 0.001), had higher composite Injury Severity Scores (17 vs 10; P < 0.001) and Abbreviated Injury Scores for the thorax and abdomen (P = 0.004 and P = 0.019, respectively), and longer ventilator days/intensive care unit stays/hospital lengths of stay (P < 0.001/P < 0.001/P = 0.013). In addition, subjects receiving THAM had a lower survival rate than subjects not receiving THAM (73.3% vs 91.7%; P = 0.011). CONCLUSIONS THAM was administered rarely to pediatric trauma casualties during the conflicts in Afghanistan and Iraq. Subjects receiving THAM were more critically injured than the baseline population.
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Affiliation(s)
- Jason F Naylor
- From the Madigan Army Medical Center, Joint Base Lewis McChord, Washington, the San Antonio Military Medical Center and the US Army Institute of Surgical Research Joint Base San Antonio Fort Sam Houston, Texas, and the 59th Medical Wing, Joint Base San Antonio Lackland Air Force Base, Texas
| | - Michael D April
- From the Madigan Army Medical Center, Joint Base Lewis McChord, Washington, the San Antonio Military Medical Center and the US Army Institute of Surgical Research Joint Base San Antonio Fort Sam Houston, Texas, and the 59th Medical Wing, Joint Base San Antonio Lackland Air Force Base, Texas
| | - Guyon J Hill
- From the Madigan Army Medical Center, Joint Base Lewis McChord, Washington, the San Antonio Military Medical Center and the US Army Institute of Surgical Research Joint Base San Antonio Fort Sam Houston, Texas, and the 59th Medical Wing, Joint Base San Antonio Lackland Air Force Base, Texas
| | - Kelley M Kempski
- From the Madigan Army Medical Center, Joint Base Lewis McChord, Washington, the San Antonio Military Medical Center and the US Army Institute of Surgical Research Joint Base San Antonio Fort Sam Houston, Texas, and the 59th Medical Wing, Joint Base San Antonio Lackland Air Force Base, Texas
| | - Allyson A Arana
- From the Madigan Army Medical Center, Joint Base Lewis McChord, Washington, the San Antonio Military Medical Center and the US Army Institute of Surgical Research Joint Base San Antonio Fort Sam Houston, Texas, and the 59th Medical Wing, Joint Base San Antonio Lackland Air Force Base, Texas
| | - Steven G Schauer
- From the Madigan Army Medical Center, Joint Base Lewis McChord, Washington, the San Antonio Military Medical Center and the US Army Institute of Surgical Research Joint Base San Antonio Fort Sam Houston, Texas, and the 59th Medical Wing, Joint Base San Antonio Lackland Air Force Base, Texas
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Spotlight on Neurotrauma Research in Canada's Leading Academic Centers. J Neurotrauma 2018; 35:1986-2004. [PMID: 30074875 DOI: 10.1089/neu.2018.29017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
OBJECTIVE Our goal was to perform a systematic review of the literature on the use of intravenous sodium bicarbonate for intracranial pressure (ICP) reduction in patients with neurologic illness. METHODS Data sources: articles from MEDLINE, BIOSIS, EMBASE, Global Health, Scopus, Cochrane Library, the International Clinical Trials Registry Platform (inception to April 2015), reference lists of relevant articles, and gray literature were searched. DATA EXTRACTION 2 reviewers independently extracted data including population characteristics and treatment characteristics. The strength of evidence was adjudicated using both the Oxford and Grading of Recommendation Assessment Development and Education methodology. RESULTS Our search strategy produced a total 559 citations. Three original articles were included in the review. There were 2 prospective studies, 1 randomized control trial and 1 single arm, and 1 retrospective case report.Across all studies there were a total of 19 patients studied, with 31 episodes of elevated ICP being treated. Twenty-one of those episodes were treated with sodium bicarbonate infusion, with the remaining 10 treated with hypertonic saline in a control model. All elevated ICP episodes treated with sodium bicarbonate solution demonstrated a significant drop in ICP, without an elevation of serum partial pressure of carbon dioxide. No significant complications were described. CONCLUSIONS There currently exists Oxford level 4, Grading of Recommendation Assessment Development and Education D evidence to support an ICP reduction effect with intravenous sodium bicarbonate in TBI. No comments on its impact in other neuropathologic states, or on patient outcomes, can be made at this time.
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Synnot A, Bragge P, Lunny C, Menon D, Clavisi O, Pattuwage L, Volovici V, Mondello S, Cnossen MC, Donoghue E, Gruen RL, Maas A. The currency, completeness and quality of systematic reviews of acute management of moderate to severe traumatic brain injury: A comprehensive evidence map. PLoS One 2018; 13:e0198676. [PMID: 29927963 PMCID: PMC6013193 DOI: 10.1371/journal.pone.0198676] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/23/2018] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE To appraise the currency, completeness and quality of evidence from systematic reviews (SRs) of acute management of moderate to severe traumatic brain injury (TBI). METHODS We conducted comprehensive searches to March 2016 for published, English-language SRs and RCTs of acute management of moderate to severe TBI. Systematic reviews and RCTs were grouped under 12 broad intervention categories. For each review, we mapped the included and non-included RCTs, noting the reasons why RCTs were omitted. An SR was judged as 'current' when it included the most recently published RCT we found on their topic, and 'complete' when it included every RCT we found that met its inclusion criteria, taking account of when the review was conducted. Quality was assessed using the AMSTAR checklist (trichotomised into low, moderate and high quality). FINDINGS We included 85 SRs and 213 RCTs examining the effectiveness of treatments for acute management of moderate to severe TBI. The most frequently reviewed interventions were hypothermia (n = 17, 14.2%), hypertonic saline and/or mannitol (n = 9, 7.5%) and surgery (n = 8, 6.7%). Of the 80 single-intervention SRs, approximately half (n = 44, 55%) were judged as current and two-thirds (n = 52, 65.0%) as complete. When considering only the most recently published review on each intervention (n = 25), currency increased to 72.0% (n = 18). Less than half of the 85 SRs were judged as high quality (n = 38, 44.7%), and nearly 20% were low quality (n = 16, 18.8%). Only 16 (20.0%) of the single-intervention reviews (and none of the five multi-intervention reviews) were judged as current, complete and high-quality. These included reviews of red blood cell transfusion, hypothermia, management guided by intracranial pressure, pharmacological agents (various) and prehospital intubation. Over three-quarters (n = 167, 78.4%) of the 213 RCTs were included in one or more SR. Of the remainder, 17 (8.0%) RCTs post-dated or were out of scope of existing SRs, and 29 (13.6%) were on interventions that have not been assessed in SRs. CONCLUSION A substantial number of SRs in acute management of moderate to severe TBI lack currency, completeness and quality. We have identified both potential evidence gaps and also substantial research waste. Novel review methods, such as Living Systematic Reviews, may ameliorate these shortcomings and enhance utility and reliability of the evidence underpinning clinical care.
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Affiliation(s)
- Anneliese Synnot
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- National Trauma Research Institute, The Alfred, Monash University, Melbourne, Victoria, Australia
- Cochrane Australia, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
- Cochrane Consumers and Communication, School of Psychology and Public Health, La Trobe University, Melbourne, Victoria, Australia
| | - Peter Bragge
- BehaviourWorks Australia, Monash Sustainable Development Institute, Monash University, Melbourne, Victoria, Australia
| | - Carole Lunny
- Cochrane Australia, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - David Menon
- Division of Anaesthesia, University of Cambridge; Neurosciences Critical Care Unit, Addenbrooke’s Hospital; Queens’ College, Cambridge, United Kingdom
| | - Ornella Clavisi
- National Trauma Research Institute, The Alfred, Monash University, Melbourne, Victoria, Australia
- MOVE: Muscle, Bone and Joint Health Ltd, Melbourne, Victoria, Australia
| | - Loyal Pattuwage
- National Trauma Research Institute, The Alfred, Monash University, Melbourne, Victoria, Australia
- Monash Centre for Occupational and Environmental Health (MonCOEH), Monash University, Melbourne, Victoria, Australia
| | - Victor Volovici
- Department of Public Health, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Department of Neurosurgery, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Maryse C. Cnossen
- Center for Medical Decision Making, Department of Public Health, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Emma Donoghue
- Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Russell L. Gruen
- Nanyang Technical University, Singapore
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Andrew Maas
- Department of Neurosurgery, Antwerp University Hospital and University of Antwerp, Edegem, Belgium
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Cerebral Critical Closing Pressure: Is the Multiparameter Model Better Suited to Estimate Physiology of Cerebral Hemodynamics? Neurocrit Care 2017; 25:446-454. [PMID: 27389005 DOI: 10.1007/s12028-016-0288-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Cerebral critical closing pressure (CrCP) is the level of arterial blood pressure (ABP) at which small brain vessels close and blood flow stops. This value is always greater than intracranial pressure (ICP). The difference between CrCP and ICP is explained by the tone of the small cerebral vessels (wall tension). CrCP value is used in several dynamic cerebral autoregulation models. However, the different methods for calculation of CrCP show frequent negative values. These findings are viewed as a methodological limitation. We intended to evaluate CrCP in patients with severe traumatic brain injury (TBI) with a new multiparameter impedance-based model and compare it with results found earlier using a transcranial Doppler (TCD)-ABP pulse waveform-based method. METHODS Twelve severe TBI patients hospitalized during September 2005-May 2007. Ten men, mean age 32 years (16-61). Four had decompressive craniectomies (DC); three presented anisocoria. Patients were monitored with TCD cerebral blood flow velocity (FV), invasive ABP, and ICP. Data were acquired at 50 Hz with an in-house developed data acquisition system. We compared the earlier studied "first harmonic" method (M1) results with results from a new recently developed (M2) "multiparameter method." RESULTS M1: In seven patients CrCP values were negative, reaching -150 mmHg. M2: All positive values; only one lower than ICP (ICP 60 mmHg/ CrCP 57 mmHg). There was a significant difference between M1 and M2 values (M1 < M2) and between ICP and M2 (M2 > ICP). CONCLUSION M2 results in positive values of CrCP, higher than ICP, and are physiologically interpretable.
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Abstract
PURPOSE OF REVIEW The objective of this article is to review the latest developments related to the treatment of patients with acute liver failure (ALF). RECENT FINDINGS As the treatment of ALF has evolved, there is an increasing recognition regarding the risk of intracranial hypertension related to advanced hepatic encephalopathy. Therefore, there is an enhanced emphasis on neuromonitoring and therapies targeting intracranial hypertension. Also, new evidence implicates systemic proinflammatory cytokines as an etiology for the development of multiorgan system dysfunction in ALF; the recent finding of a survival benefit in ALF with high-volume plasmapheresis further supports this theory. SUMMARY Advances in the critical care management of ALF have translated to a substantial decrease in mortality related to this disease process. The extrapolation of therapies from general neurocritical care to the treatment of ALF-induced intracranial hypertension has resulted in improved neurologic outcomes. In addition, recognition of the systemic inflammatory response and multiorgan dysfunction in ALF has guided current treatment recommendations, and will provide avenues for future research endeavors. With respect to extracorporeal liver support systems, further randomized studies are required to assess their efficacy in ALF, with attention to nonsurvival end points such as bridging to liver transplantation.
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Abstract
BACKGROUND The goal of our study was to perform a systematic review of the literature to determine the effect that burst suppression has on intracranial pressure (ICP) control. METHODS All articles from MEDLINE, BIOSIS, EMBASE, Global Health, Scopus, Cochrane Library, the International Clinical Trials Registry Platform (inception to January 2015), reference lists of relevant articles, and gray literature were searched. The strength of evidence was adjudicated using both the Oxford and the Grading of Recommendation Assessment Development and Education (GRADE) methodology. RESULTS Seven articles were considered for review. A total of 108 patients were studied, all receiving burst suppression therapy. Two studies failed to document a decrease in ICP with burst suppression therapy. There were reports of severe hypotension and increased infection rates with barbiturate-based therapy. Etomidate-based suppressive therapy was linked to severe renal dysfunction. CONCLUSIONS There currently exists both Oxford level 2b and GRADE C evidence to support that achieving burst suppression reduces ICP, and also has no effect on ICP, in severe traumatic brain injury. The literature suggests burst suppression therapy may be useful for ICP reduction in certain cases, although these situations are currently unclear. In addition, the impact on patient functional outcome is unclear. Further prospective study is warranted.
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Affiliation(s)
- Frederick A Zeiler
- 1 Department of Surgery, Section of Neurosurgery, University of Manitoba, Winnipeg, Canada
| | - Eva Akoth
- 1 Department of Surgery, Section of Neurosurgery, University of Manitoba, Winnipeg, Canada
| | - Lawrence M Gillman
- 2 Department of Medicine, Section of Critical Care Medicine, University of Manitoba, Winnipeg, Canada.,3 Department of Surgery, Section of General Surgery, University of Manitoba, Winnipeg, Canada
| | - Michael West
- 1 Department of Surgery, Section of Neurosurgery, University of Manitoba, Winnipeg, Canada
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[Critical care management of intracerebral hemorrhage]. Med Klin Intensivmed Notfmed 2016; 113:164-173. [PMID: 27221095 DOI: 10.1007/s00063-016-0154-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 02/15/2016] [Accepted: 02/21/2016] [Indexed: 01/24/2023]
Abstract
BACKGROUND Intracerebral hemorrhage accounts for up to 20 % percent of all ischemic strokes. In addition to a higher mortality, they are often associated with severe neurological impairment for those affected. OBJECTIVES Review of the current literature and guidelines addressing the critical care management of spontaneous intracerebral hemorrhage, including treatments to reduce primary and secondary neurological damage. RESULTS Acute blood pressure lowering to less than 140 mmHg should be aspired immediately after intensive care admission. During the following days blood pressure variability should be minimized. Preexisting oral anticoagulation should be immediately reversed, while hemostatic therapy not associated with reversal of antithrombotic therapy should not be applied. Surgery for patients with impaired consciousness should be discussed. Use of pneumatic compression in immobile patients is recommended. Developing intracranial hypertension should be treated with combined physical and pharmacological measures in a stepwise approach. Administration of glucocorticoids is currently not recommended. CONCLUSIONS Critical care management of spontaneous hemorrhage demands a multimodal, graded approach for reduction of both primary and secondary neurological damage.
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Early Implementation of THAM for ICP Control: Therapeutic Hypothermia Avoidance and Reduction in Hypertonics/Hyperosmotics. Case Rep Crit Care 2014; 2014:139342. [PMID: 25544901 PMCID: PMC4273533 DOI: 10.1155/2014/139342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 11/18/2014] [Indexed: 11/26/2022] Open
Abstract
Background. Tromethamine (THAM) has been demonstrated to reduce intracranial pressure (ICP). Early consideration for THAM may reduce the need for other measures for ICP control. Objective. To describe 4 cases of early THAM therapy for ICP control and highlight the potential to avoid TH and paralytics and achieve reduction in sedation and hypertonic/hyperosmotic agent requirements. Methods. We reviewed the charts of 4 patients treated with early THAM for ICP control. Results. We identified 2 patients with aneurysmal subarachnoid hemorrhage (SAH) and 2 with traumatic brain injury (TBI) receiving early THAM for ICP control. The mean time to initiation of THAM therapy was 1.8 days, with a mean duration of 5.3 days. In all patients, after 6 to 12 hours of THAM administration, ICP stability was achieved, with reduction in requirements for hypertonic saline and hyperosmotic agents. There was a relative reduction in mean hourly hypertonic saline requirements of 89.1%, 96.1%, 82.4%, and 97.0% for cases 1, 2, 3, and 4, respectively, comparing pre- to post-THAM administration. Mannitol, therapeutic hypothermia, and paralytics were avoided in all patients. Conclusions. Early administration of THAM for ICP control could potentially lead to the avoidance of other ICP directed therapies. Prospective studies of early THAM administration are warranted.
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