Clinical and Experimental Emergency Medicine最新文献

Objective: Traumatic brain injury (TBI) often occurs alongside injuries to other body regions, worsening patient outcomes. This study evaluates the impact of concomitant injuries on clinical outcomes in patients with isolated versus non-isolated TBI.

Methods: This retrospective cross-sectional analysis was conducted using data from the Emergency Department-based Injury In-depth Surveillance (EDIIS) for 180,058 TBI patients admitted to 23 tertiary hospitals from January 1, 2020, to December 31, 2022. Patients were categorized into isolated TBI group (iTBI; n=127,673) and non-isolated TBI group (niTBI; n=52,385) based on injury diagnostic codes. Clinical outcomes-24-hour and 30-day mortality, hospital admission, and interhospital transfer-were compared. Multivariate logistic regression analyses adjusted for potential confounders were performed.

Results: The niTBI patients exhibited significantly higher 24-hour mortality (1.5% vs. 0.4%), 30-day mortality (2.6% vs. 1.0%), hospital admissions (24.5% vs. 8.4%), and interhospital transfers (3.6% vs. 1.1%) than iTBI patients (all P<0.001). Concomitant injuries increased the adjusted odds of 24-hour mortality (adjusted odds ratio [aOR], 1.456; 95% confidence interval [CI], 1.286-1.648) and 30-day mortality (aOR, 1.111; 95% CI, 1.022-1.208). Thoracic injuries were the most significant predictor of adverse outcomes in niTBI patients, increasing the odds of 24-hour mortality by nearly sixfold (aOR, 5.958; 95% CI 5.057-7.019).

Conclusion: s: Concomitant injuries significantly worsen clinical outcomes in TBI patients, with thoracic injuries being the most critical predictor of mortality. These findings highlight the importance of comprehensive trauma assessments and targeted prevention strategies to improve survival rates and optimize resource allocation for patients with multiple injuries.

Objective: The study investigates experimental brain trauma in rabbits, assessing levels of ubiquitin C-terminal hydrolase-L1 (UCH-L1), glial fibrillary acidic protein (GFAP), and interleukin 6 (IL-6) in serum and cerebrospinal fluid (CSF) and compares these biomarkers among trauma groups.

Methods: Thirty rabbits were randomized to a control group (n=6) or to mild-, moderate-, and severe-trauma groups (n=8 each) created by dropping 200, 350, or 500 g weights, respectively, onto their skulls using a modified Marmarou impact acceleration model. CSF and venous blood samples were collected at 0, 12, and 24 hours after injury; UCH-1 L, GFAP, and IL-6 concentrations in CSF and serum were quantified by enzyme-linked immunosorbent assays, and group differences were analyzed with a Friedman test followed by Dunn-Bonferroni correction.

Results: Neither CSF nor serum concentration of GFAP, IL-6, or UCH-L1 differed from those of controls after mild trauma. Severe head trauma produced markedly higher GFAP and IL-6 concentrations in CSF compared with the control group (P<0.05), with both biomarkers peaking at 12 hours after injury. Serum UCH-L1 increased significantly in both moderate-trauma (peak at 12 hours) and severe-trauma groups (peak at 24 hours) compared with the control group (P<0.05), whereas no intergroup difference in CSF UCH-L1 levels was evident.

Conclusion: Serum UCH-L1 differentiated moderate and severe trauma from controls in a rabbit model, whereas CSF GFAP and IL-6 levels reflected severe injury. Validation in larger preclinical and clinical studies is warranted.

Objective: To explore and analyze pediatric trauma care practices across designated pediatric trauma centers (PTCs) in Switzerland. The focus was on reception, trauma team activation (TTA), trauma team composition, patient volumes, and infrastructure.

Methods: A national online survey was conducted among all eight PTCs in Switzerland using an 18-item questionnaire. The survey investigated organizational aspects, criteria for TTA, patient volume, and communication modalities in pediatric emergency departments (PEDs).

Results: All PTCs responded, revealing varying methods of TTA, with reception of major trauma patients occurring at either PEDs or adjacent adult trauma facilities. Trauma team composition and activation criteria also differ among centers, with nonsurgeons often leading the teams and anesthesiologists being the default facilitators of airway management. TTA criteria vary widely, with the most common being the request of prehospitalization staff (62.5%) and physician discretion (50%). Trauma resuscitation is predominantly led by PED attendants (75%).

Conclusion: This survey provides insights into the state of pediatric trauma care in Switzerland. The findings underscore the importance of multidisciplinary teams and variability in trauma management practices, which are often tailored to local circumstances. Despite the study limitations of using self-reported data and the small sample size owing to the country's size, the result suggest that a national trauma registry would be helpful to the evaluation and optimization of pediatric trauma care protocols.

Objective: Ketamine is a promising drug for analgesia in emergency medicine, but the high rate of side effects is a barrier to widespread usage. We hypothesized that ketamine bolus followed by ketamine infusion would provide a more even and longer duration of analgesia and lower rates of side effects in comparison to bolus-only administration.

Methods: This was a double-blinded clinical trial. Eligible trauma patients were randomly allocated with the numeric rating scale ≥6 in two study groups. The first group received a dose of 0.3 mg/kg of ketamine over 1 minute, followed by an infusion of saline 0.9% over the next 30 minutes (bolus-only group). The second group was given 0.15 mg/kg of ketamine over 1 minute, followed by an infusion of 0.15 mg/kg over the next 30 minutes (bolus-and-infusion group). The primary outcome was to measure the average reduction in pain scores.

Results: In total, 80 patients were recruited. Of these, 77 patients were analyzed. Both groups achieved a statistically significant decrease in pain scores (all P<0.001). After 30 minutes, patients in the bolus-and-infusion group reported lower pain scores in all intervals with lower rates of need for rescue analgesia, but this difference was not statistically significant. Vital signs remained stable during the study in both groups. No statistically significant difference was observed between study groups for any side effect (P<0.05).

Conclusion: Both administration protocols resulted in significant pain control. No statistically significant difference was observed between study groups in terms of analgesic efficacy and side effects.

This bibliometric analysis of the 100 most cited articles on experimental cardiac arrest models in rats identifies key contributors, publication trends, research themes, and collaboration networks. A comprehensive literature search of the Web of Science database was performed on June 11, 2024, using keywords related to cardiac arrest and rat models. The top 100 most cited articles were analyzed using the biblioshiny web application from the bibliometrix R ver. 4.2.3 and categorized by primary research focus. The articles were published from 1980 to 2022 and involved 416 authors and 44 journals, averaging 106.7 citations each. The primary research themes were neurology (72%), organ transplantation (7%), cardiovascular system (6%), Cardiopulmonary resuscitation outcomes after local anesthetic toxicity (4%), and other topics (5%). The United States, Japan, and Germany were leading contributors. Major clusters identified include "cerebral ischemia and outcomes," "brain imaging metrics," and "blood brain barrier." The most commonly used methodologies for cardiac arrest induction were asphyxia, induction by magnesium or potassium chloride, and electrical stimulation. This first bibliometric analysis on this topic reveals the dominance of neuroscience in experimental cardiac arrest models in rats. High-impact journals such as the Journal of Cerebral Blood Flow and Metabolism play critical roles in disseminating significant research. The study highlights substantial gaps in global research engagement, with minimal contributions from lower income countries and few international collaborations. This analysis provides a roadmap for future research and opportunities for more extensive international and interdisciplinary collaboration, always with a focus on scientific rigor.

Objective: To evaluate the current body of literature pertaining to the use of ocular point-of-care ultrasound (POCUS) in the emergency department (ED).

Methods: A comprehensive literature search was conducted on Scopus, Web of Science, MEDLINE, and Cochrane Central Register of Controlled Trials (CENTRAL) databases. Inclusion criteria were studies written in English and primary clinical studies involving ocular POCUS scans in an ED setting. Exclusion criteria were nonprimary studies (e.g., reviews or case reports), studies written in a non-English language, nonhuman studies, studies performed in a nonemergency setting, studies involving non-POCUS ocular ultrasound modalities, or studies published more than 10 years prior. Data extraction was guided by the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) recommendations.

Results: The initial search yielded 391 results with 153 duplicates. Of the remaining 238 studies selected for retrieval and screening, 24 met the inclusion criteria. These 24 included studies encompassed 2,448 patients across prospective, retrospective, cross-sectional, and case series study designs. The majority of included studies focused on the use of POCUS in the ED to measure optic nerve sheath diameter as a proxy for papilledema and metabolic aberrations, while a minority of studies used ocular POCUS to assist in the diagnosis of orbital fractures or posterior segment pathology.

Conclusion: The vast majority of studies investigating the use of ocular POCUS in recent years emphasize its utility in measuring optic nerve sheath diameter and fluctuations in intracranial pressure, though additional outcomes of interest include pathology of the posterior segment, orbit, and globe.