Laboratory Reconstructions of Bicycle Helmet Damage: Investigation of Cyclist Head Impacts Using Oblique Impacts and Computed Tomography.

Laboratory Reconstructions of Bicycle Helmet Damage: Investigation of Cyclist Head Impacts Using Oblique Impacts and Computed Tomography. Ann Biomed Eng. 2020 Sep 24;: Authors: Bland ML, McNally C, Cicchino JB, Zuby DS, Mueller BC, McCarthy ML, Newgard CD, Kulie PE, Arnold BN, Rowson S Abstract Although head injuries are common in cycling, exact conditions associated with cyclist head impacts are difficult to determine. Previous studies have attempted to reverse engineer cyclist head impacts by reconstructing bicycle helmet residual damage, but they have been limited by simplified damage assessment and testing. The present study seeks to enhance knowledge of cyclist head impact conditions by reconstructing helmet damage using advanced impact testing and damage quantification techniques. Damage to 18 helmets from cyclists treated in emergency departments was quantified using computed tomography and reconstructed using oblique impacts. Damage metrics were related to normal and tangential velocities from impact tests as well as peak linear accelerations (PLA) and peak rotational velocities (PRV) using case-specific regression models. Models then allowed original impact conditions and kinematics to be estimated for each case. Helmets were most frequently damaged at the front and sides, often near the rim. Concussion was the most common, non-superficial head injury. Normal velocity and PLA distributions were similar to previous studies, with median values of ...
Source: Annals of Biomedical Engineering - Category: Biomedical Engineering Authors: Tags: Ann Biomed Eng Source Type: research

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Conclusions: An acute circulating biomarker capable of discriminating intracranial MRI abnormalities is critical to establishing diagnosis for CT-occult TBI and can triage patients who may benefit from outpatient MRI, surveillance and/or follow up with TBI specialists. GFAP has shown diagnostic potential for MRI findings such as DAI and awaits further validation. Tau shows promise in detecting DAI and disrupted functional connectivity. Candidate biomarkers should be evaluated within the context of analytical performance of the assays used, as well as the post-injury timeframe for blood collection relative to MRI abnormalit...
Source: Medicina (Kaunas) - Category: Universities & Medical Training Authors: Tags: Medicina (Kaunas) Source Type: research
Quanterix has reached another step in its goal to advance a blood-based test to detect concussions in athletes. The Billerica, MA-based company said researchers have successfully applied the Single Molecule Array (Simoa) technology to generate data on the value of blood biomarkers as research tools to study pathophysiological mechanisms of concussion and as potential clinical tools and objective indicators for sports-related concussions (SRCs) and mild traumatic brain injuries (mTBIs). Results have been published in JAMA Network Open, demonstrate the promise of blood biomarkers to serve as clinical tools for objectively id...
Source: MDDI - Category: Medical Devices Authors: Tags: Business Source Type: news
A 49-year-old female with history of daily inhaled corticosteroid use for asthma presented to a concussion clinic 7 wk after sport-related head injury with headache, visual blurring, dizziness, nausea, fatigue, polydipsia, and polyuria. Examination revealed difficulty with vestibuloocculomotor testing due to nausea and visual straining. Cranial computed tomography/magnetic resonance imaging was unremarkable. Laboratory testing revealed critically low serum cortisol, hypernatremia, and urine studies suggesting diabetes insipidus. The patient was referred to the emergency department. Intravenous fluid resuscitation, corticos...
Source: Current Sports Medicine Reports - Category: Sports Medicine Tags: Case Report Source Type: research
Abstract A 49-year-old female with history of daily inhaled corticosteroid use for asthma presented to a concussion clinic 7 wk after sport-related head injury with headache, visual blurring, dizziness, nausea, fatigue, polydipsia, and polyuria. Examination revealed difficulty with vestibuloocculomotor testing due to nausea and visual straining. Cranial computed tomography/magnetic resonance imaging was unremarkable. Laboratory testing revealed critically low serum cortisol, hypernatremia, and urine studies suggesting diabetes insipidus. The patient was referred to the emergency department. Intravenous fluid resus...
Source: Current Sports Medicine Reports - Category: Sports Medicine Authors: Tags: Curr Sports Med Rep Source Type: research
Conclusions: Macrostructural abnormality on CT was associated with worse functional outcome at one week post MTBI. PMID: 31550173 [PubMed - as supplied by publisher]
Source: Brain Injury - Category: Neurology Tags: Brain Inj Source Type: research
_______________ For Banner Health, one of the largest non-profit health system in the United States, finding ways to make health care easier and better for our patients is at the root of everything we do. That’s why we are making significant investments into the digital health and neurotech space, trying to answer some common pain points. Let me give you an example. Last year, Banner Urgent Care turned to an innovative device, BrainScope One, to provide better care and to help save patients money and time, as it helps clinicians identify traumatic brain injuries and concussions. This is an area of growing concern. St...
Source: SharpBrains - Category: Neuroscience Authors: Tags: Cognitive Neuroscience Health & Wellness Professional Development Technology Banner Health Banner Urgent Care BrainScope BrainScope One computerized tomography concussions digital health electrical signals electrodes head trauma Source Type: blogs
Conclusion We have reviewed the literature and identified blood biomarkers with the highest discriminative abilities as determined by operating characteristics in four commonly encountered clinical situations: diagnosing concussion, predicting the need for a CT scan after mTBI, predicting delayed recovery after mTBI, and predicting poor outcome after sTBI. The top performers in each category may provide insight into pathogenic mechanisms of TBI that most influence the measured endpoint. Nonetheless, many challenges remain before these biomarkers can be incorporated into clinical practice. In particular, it remains unclear...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Abstract OBJECTIVE: The purpose of this study was to determine if implementation of a Pediatric Emergency Care Applied Research Network (PECARN)-based closed head injury assessment tool could safely decrease computed tomography (CT) use for pediatric head injury evaluation at a non-pediatric community emergency department (ED). METHODS: A quality improvement project was initiated at a non-pediatric community ED to implement an institution-specific, Pediatric Emergency Care Applied Research Network (PECARN)-based Pediatric Closed Head Injury Assessment Tool. Baseline head CT use at the participating ED was det...
Source: Accident and Emergency Nursing - Category: Emergency Medicine Authors: Tags: Acad Emerg Med Source Type: research
AbstractObjectiveThe purpose of this study was to determine if implementation of a Pediatric Emergency Care Applied Research Network (PECARN) ‐based closed head injury assessment tool could safely decrease computed tomography (CT) use for pediatric head injury evaluation at a non‐pediatric community emergency department (ED).MethodsA quality improvement project was initiated at a non ‐pediatric community ED to implement an institution‐specific, Pediatric Emergency Care Applied Research Network (PECARN)‐based Pediatric Closed Head Injury Assessment Tool. Baseline head CT use at the participating ED was determined ...
Source: Academic Emergency Medicine - Category: Emergency Medicine Authors: Tags: Original Contribution Source Type: research
BETHESDA, Md.--BrainScope today announced its second consecutive nomination for the 2018 Annual Prix Galien USA Awards for “Best Medical Technology” product. Its flagship BrainScope One product is a multi-modal, comprehensive, handheld capability to help clinicians objectively and rapidly assess and triage head injured patients directly at the point of care. BrainScope’s innovative technology addresses a vast market need for the global epidemic of mild head injury, which impacts more people each year than stroke and heart failure combined. BrainScope One is the first FDA-cleared medica...
Source: JEMS: Journal of Emergency Medical Services News - Category: Emergency Medicine Authors: Tags: Trauma Product Announcements News Industry News Source Type: news
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