scholarly journals Loss of GPVI and GPIbα contributes to trauma-induced platelet dysfunction in severely injured patients

2020 ◽  
Vol 4 (12) ◽  
pp. 2623-2630 ◽  
Author(s):  
Paul Vulliamy ◽  
Samantha J. Montague ◽  
Scarlett Gillespie ◽  
Melissa V. Chan ◽  
Lucy A. Coupland ◽  
...  
Keyword(s):  
Patient Characteristics ◽  
Surface Expression ◽  
Trauma Patients ◽  
Severely Injured ◽  
Platelet Dysfunction ◽  
Severely Injured Patients ◽  
Severe Injuries ◽  
Glycoprotein Vi ◽  
Active Hemorrhage ◽  
Injured Patients

Abstract Trauma-induced coagulopathy (TIC) is a complex, multifactorial failure of hemostasis that occurs in 25% of severely injured patients and results in a fourfold higher mortality. However, the role of platelets in this state remains poorly understood. We set out to identify molecular changes that may underpin platelet dysfunction after major injury and to determine how they relate to coagulopathy and outcome. We performed a range of hemostatic and platelet-specific studies in blood samples obtained from critically injured patients within 2 hours of injury and collected prospective data on patient characteristics and clinical outcomes. We observed that, although platelet counts were preserved above critical levels, circulating platelets sampled from trauma patients exhibited a profoundly reduced response to both collagen and the selective glycoprotein VI (GPVI) agonist collagen-related peptide, compared with those from healthy volunteers. These responses correlated closely with overall clot strength and mortality. Surface expression of the collagen receptors GPIbα and GPVI was reduced on circulating platelets in trauma patients, with increased levels of the shed ectodomain fragment of GPVI detectable in plasma. Levels of shed GPVI were highest in patients with more severe injuries and TIC. Collectively, these observations demonstrate that platelets experience a loss of GPVI and GPIbα after severe injury and translate into a reduction in the responsiveness of platelets during active hemorrhage. In turn, they are associated with reduced hemostatic competence and increased mortality. Targeting proteolytic shedding of platelet receptors is a potential therapeutic strategy for maintaining hemostatic competence in bleeding and improving the efficacy of platelet transfusions.

Trauma in pregnancy: A review of the Pennsylvania Trauma Systems Foundation database

Trauma ◽  
2017 ◽  
Vol 20 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Meike Schuster ◽  
Natasha Becker ◽  
Amanda Young ◽  
Michael J Paglia ◽  
A Dhanya Mackeen
Keyword(s):  
Blunt Trauma ◽  
Motor Vehicle ◽  
Penetrating Trauma ◽  
Blunt Injury ◽  
Trauma Patients ◽  
Severely Injured ◽  
Trauma Systems ◽  
Severely Injured Patients ◽  
Vaginal Deliveries ◽  
Injured Patients

Objective The goal of this study is to determine if injury severity score (ISS) of ≥9 and systolic blood pressure (SBP) predict poor maternal/pregnancy outcomes in blunt and penetrating trauma, respectively. Methods The Pennsylvania Trauma Systems Foundation database was used to identify pregnant trauma patients. Blunt trauma patients were analyzed with regard to ISS, while penetrating trauma patients were analyzed to determine whether SBP < 90 mmHg was predictive of poor maternal outcome. Results Patients with severe blunt injury (ISS ≥ 9) due to motor vehicle accident were less likely to wear seatbelts (51% vs. 63%, p = 0.005), and delivery was required in 17% of these patients as compared to 6% of the less severely injured, and only 6% of those were vaginal deliveries. Severely injured patients were discharged home 68% of the time and 6% died compared to less severely injured patients of which 83% were discharged home and <1% died; all other patients required discharge to a rehabilitation facility. Patients with penetrating trauma and SBP < 90 mmHg on arrival were more likely to require delivery (35% vs. 5%, p < 0.001) and were 14 times more likely to die (58% vs. 4%, p < 0.001) when compared to the normotensive group. Conclusion ISS ≥ 9 and SBP < 90 mmHg are predictors for poor outcomes after trauma during pregnancy. Severely injured blunt trauma patients often require surgery and delivery. Patients who present with SBP < 90 after penetrating trauma are more likely to deliver and are 14 times more likely to die.

Delays in Transfer of Elderly Less-injured Trauma Patients Can Have Deadly Consequences

2014 ◽  
Vol 80 (11) ◽  
pp. 1132-1135 ◽  
Author(s):  
Peter E. Fischer ◽  
Paul D. Colavita ◽  
Gregory P. Fleming ◽  
Toan T. Huynh ◽  
A. Britton Christmas ◽  
...  
Keyword(s):  
Trauma Center ◽  
Injury Severity ◽  
Trauma Patients ◽  
Severely Injured ◽  
Severely Injured Patients ◽  
Local Trauma ◽  
Level 1 ◽  
Poor Outcomes ◽  
Injured Patients ◽  
Level 1 Trauma Center

Transfer of severely injured patients to regional trauma centers is often expedited; however, transfer of less-injured, older patients may not evoke the same urgency. We examined referring hospitals’ length of stay (LOS) and compared the subsequent outcomes in less-injured transfer patients (TP) with patients presenting directly (DP) to the trauma center. We reviewed the medical records of less-injured (Injury Severity Score [ISS] 9 or less), older (age older than 60 years) patients transferred to a regional Level 1 trauma center to determine the referring facility LOS, demographics, and injury information. Outcomes of the TP were then compared with similarly injured DP using local trauma registry data. In 2011, there were 1657 transfers; the referring facility LOS averaged greater than 3 hours. In the less-injured patients (ISS 9 or less), the average referring facility LOS was 3 hours 20 minutes compared with 2 hours 24 minutes in more severely injured patients (ISS 25 or greater, P < 0.05). The mortality was significantly lower in the DP patients (5.8% TP vs 2.6% DP, P = 0.035). Delays in transfer of less-injured, older trauma patients can result in poor outcomes including increased mortality. Geographic challenges do not allow for every patient to be transported directly to a trauma center. As a result, we propose further outreach efforts to identify potential causes for delay and to promote compliance with regional referral guidelines.

scholarly journals Evidence of Prolonged Monitoring of Trauma Patients Admitted via Trauma Resuscitation Unit without Primary Proof of Severe Injuries

2020 ◽  
Vol 9 (8) ◽  
pp. 2516 ◽  
Author(s):  
Martin Heinrich ◽  
Matthias Lany ◽  
Lydia Anastasopoulou ◽  
Christoph Biehl ◽  
Gabor Szalay ◽  
...  
Keyword(s):  
Injury Severity ◽  
Treatment Completion ◽  
Trauma Patients ◽  
Trauma Resuscitation ◽  
Abbreviated Injury Scale ◽  
Severely Injured Patients ◽  
Severe Injuries ◽  
Level I ◽  
Evidence Based Guidelines ◽  
Injured Patients

Introductio: Although management of severely injured patients in the Trauma Resuscitation Unit (TRU) follows evidence-based guidelines, algorithms for treatment of the slightly injured are limited. Methods: All trauma patients in a period of eight months in a Level I trauma center were followed. Retrospective analysis was performed only in patients ≥18 years with primary TRU admission, Abbreviated Injury Scale (AIS) ≤ 1, Maximum Abbreviated Injury Scale (MAIS) ≤ 1 and Injury Severity Score (ISS) ≤3 after treatment completion and ≥24 h monitoring in the units. Cochran’s Q-test was used for the statistical evaluation of AIS and ISS changes in units. Results: One hundred and twelve patients were enrolled in the study. Twenty-one patients (18.75%) reported new complaints after treatment completion in the TRU. AIS rose from the Intermediate Care Unit (IMC) to Normal Care Unit (NCU) 6.2% and ISS 6.9%. MAIS did not increase >2, and no intervention was necessary for any patient. No correlation was found between computed tomography (CT) diagnostics in TRU and AIS change. Conclusions: The data suggest that AIS, MAIS and ISS did not increase significantly in patients without a severe injury during inpatient treatment, regardless of the type of CT diagnostics performed in the TRU, suggesting that monitoring of these patients may be unnecessary.

Influence of late fluid management on the outcomes of severe trauma patients: A retrospective analysis of 294 severely-injured patients

Injury ◽  
2017 ◽  
Vol 48 (9) ◽  
pp. 1964-1971 ◽  
Author(s):  
Mehdi Mezidi ◽  
Mehdi Ould-Chikh ◽  
Pauline Deras ◽  
Camille Maury ◽  
Orianne Martinez ◽  
...  
Keyword(s):  
Retrospective Analysis ◽  
Fluid Management ◽  
Severe Trauma ◽  
Trauma Patients ◽  
Severely Injured ◽  
Severely Injured Patients ◽  
Injured Patients

scholarly journals Malnutrition and its effects in severely injured trauma patients

2020 ◽  
Vol 46 (5) ◽  
pp. 993-1004 ◽  
Author(s):  
Suzan Dijkink ◽  
Karien Meier ◽  
Pieta Krijnen ◽  
D. Dante Yeh ◽  
George C. Velmahos ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Adverse Outcomes ◽  
Hospital Length Of Stay ◽  
Geriatric Trauma ◽  
Trauma Patients ◽  
Severely Injured ◽  
Severely Injured Patients ◽  
Trauma Population ◽  
Injured Patients

Abstract Purpose In hospitalized patients, malnutrition is associated with adverse outcomes. However, the consequences of malnutrition in trauma patients are still poorly understood. This study aims to review the current knowledge about the pathophysiology, prevalence, and effects of malnutrition in severely injured patients. Methods A systematic literature review in PubMed and Embase was conducted according to PRISMA-guidelines. Results Nine review articles discussed the hypermetabolic state in severely injured patients in relation to malnutrition. In these patients, malnutrition negatively influenced the metabolic response, and vice versa, thereby rendering them susceptible to adverse outcomes and further deterioration of nutritional status. Thirteen cohort studies reported on prevalences of malnutrition in severely injured patients; ten reported clinical outcomes. In severely injured patients, the prevalence of malnutrition ranged from 7 to 76%, depending upon setting, population, and nutritional assessment tool used. In the geriatric trauma population, 7–62.5% were malnourished at admission and 35.6–60% were at risk for malnutrition. Malnutrition was an independent risk factor for complications, mortality, prolonged hospital length of stay, and declined quality of life. Conclusions Despite widespread belief about the importance of nutrition in severely injured patients, the quantity and quality of available evidence is surprisingly sparse, frequently of low-quality, and outdated. Based on the malnutrition-associated adverse outcomes, the nutritional status of trauma patients should be routinely and carefully monitored. Trials are required to better define the optimal nutritional treatment of trauma patients, but a standardized data dictionary and reasonable outcome measures are required for meaningful interpretation and application of results.

scholarly journals Strategies for the treatment of femoral fractures in severely injured patients: trends in over two decades from the TraumaRegister DGU®

2021 ◽  
Author(s):  
Felix M. Bläsius ◽  
◽  
Markus Laubach ◽  
Hagen Andruszkow ◽  
Philipp Lichte ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Survival Rates ◽  
Treatment Strategies ◽  
Femoral Fractures ◽  
High Energy ◽  
Trauma Patients ◽  
Severely Injured ◽  
Severely Injured Patients ◽  
Femur Fractures ◽  
Injured Patients

Abstract Purpose Treatment strategies for femoral fracture stabilisation are well known to have a significant impact on the patient’s outcome. Therefore, the optimal choices for both the type of initial fracture stabilisation (external fixation/EF, early total care/ETC, conservative treatment/TC) and the best time point for conversion from temporary to definitive fixation are challenging factors. Patients Patients aged ≥ 16 years with moderate and severe trauma documented in the TraumaRegister DGU® between 2002 and 2018 were retrospectively analysed. Demographics, ISS, surgical treatment strategy (ETC vs. EF vs. TC), time for conversion to definitive care, complication (MOF, sepsis) and survival rates were analysed. Results In total, 13,091 trauma patients were included. EF patients more often sustained high-energy trauma (car: 43.1 vs. 29.5%, p < 0.001), were younger (40.6 vs. 48.1 years, p < 0.001), were more severely injured (ISS 25.4 vs. 19.1 pts., p < 0.001), and had higher sepsis (11.8 vs. 5.4%, p < 0.001) and MOF rates (33.1 vs. 16.0%, p < 0.001) compared to ETC patients. A shift from ETC to EF was observed. The time until conversion decreased for femoral fractures from 9 to 8 days within the observation period. Sepsis incidences decreased in EF (20.3 to 12.3%, p < 0.001) and ETC (9.1–4.8%, p < 0.001) patients. Conclusions Our results show the changes in the surgical treatment of severely injured patients with femur fractures over a period of almost two decades caused by the introduction of modern surgical strategies (e.g., Safe Definitive Surgery). It remains unclear which subgroups of trauma patients benefit most from these strategies.

Undertriage of the elderly major trauma patient continues in major trauma centre care: a retrospective cohort review

2020 ◽  
pp. emermed-2019-208541
Author(s):  
Antonia C Hoyle ◽  
Leela C Biant ◽  
Mike Young
Keyword(s):  
Older Patients ◽  
Major Trauma ◽  
Trauma Team ◽  
Trauma Centre ◽  
Trauma Patients ◽  
Severely Injured ◽  
Severely Injured Patients ◽  
Major Trauma Centre ◽  
Trauma Triage ◽  
Injured Patients

BackgroundMajor trauma (Injury Severity Score (ISS) ≥16) in older people is increasing, but concerns persist that major trauma is not always recognised in older patients on triage. This study compared undertriage of older and younger adult major trauma patients in the major trauma centre (MTC) setting to investigate this concern.MethodsA retrospective review of Trauma Audit and Research Network data was conducted for three MTCs in the UK for 3 months in 2014. Age, ISS, injury mechanism and injured areas were examined for all severely injured patients (ISS ≥16) and appropriate major trauma triage rates measured via the surrogate markers of trauma team activation and the presence of a consultant first attender, as per standards for major trauma care set by National Confidential Enquiry into Patient Outcomes and Deaths, Royal College of Surgeons of England and the British Orthopaedic Association. Trends in older (age ≥65) and younger (ages 18–64) adult major trauma presentation, triage and reception were reviewed.ResultsOf 153 severely injured patients, 46 were aged ≥65. Older patients were significantly less likely to receive the attention of a consultant first attender or trauma team. Similar trends were also seen on subgroup analysis by mechanism of injury or number of injured body areas. Older major trauma patients exhibit a higher mortality, despite a lower median ISS (older patient ISS=20 (IQR 16–25), younger patient ISS=25 (IQR 18–29)).ConclusionOlder major trauma patients are at greater risk of undertriage, even in the MTC environment. Existing hospital trauma triage practices should be further investigated to explain and reduce undertriage of elderly trauma patients.

scholarly journals Severely injured patients do not disappear in a pandemic: Incidence and characteristics of severe injuries during COVID-19 lockdown in Finland

2021 ◽  
pp. 1-5
Author(s):  
Antti Riuttanen ◽  
Ville Ponkilainen ◽  
Ilari Kuitunen ◽  
Aleksi Reito ◽  
Joonas Sirola ◽  
...  
Keyword(s):  
Severely Injured ◽  
Severely Injured Patients ◽  
Severe Injuries ◽  
Injured Patients

scholarly journals Registry-Based Mortality Analysis Reveals a High Proportion of Patient Decrees and Presumed Limitation of Therapy in Severe Geriatric Trauma

2020 ◽  
Vol 9 (9) ◽  
pp. 2686 ◽  
Author(s):  
Cora Rebecca Schindler ◽  
Mathias Woschek ◽  
René Danilo Verboket ◽  
Ramona Sturm ◽  
Nicolas Söhling ◽  
...  
Keyword(s):  
Brain Injuries ◽  
Injury Severity ◽  
Geriatric Trauma ◽  
Hospital Treatment ◽  
Trauma Patients ◽  
Severely Injured ◽  
Severely Injured Patients ◽  
Initial Care ◽  
Limitation Of Therapy ◽  
Injured Patients

Background: The treatment of severely injured patients, especially in older age, is complex, and based on strict guidelines. Methods: We conducted a retrospective study by analyzing our internal registry for mortality risk factors in deceased trauma patients. All patients that were admitted to the trauma bay of our level-1-trauma center from 2014 to 2018, and that died during the in-hospital treatment, were included. The aim of this study was to carry out a quality assurance concerning the initial care of severely injured patients. Results: In the 5-year period, 135 trauma patients died. The median (IQR) age was 69 (38–83) years, 71% were male, and the median (IQR) Injury Severity Score (ISS) was 25 (17–34) points. Overall, 41% of the patients suffered from severe traumatic brain injuries (TBI) (AIShead ≥ 4 points). For 12.7%, therapy was finally limited owing to an existing patient’s decree; in 64.9% with an uncertain prognosis, a ‘therapia minima’ was established in consensus with the relatives. Conclusion: Although the mortality rate was primarily related to the severity of the injury, a significant number of deaths were not exclusively due to medical reasons, but also to a self-determined limitation of therapy for severely injured geriatric patients. The conscientious documentation concerning the will of the patient is increasingly important in supporting medical decisions.

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