Articles: trauma.
-
Pediatr Crit Care Me · Dec 2024
Early Continuous Electroencephalography, Clinical Parameters, and Short-Term Functional Outcomes in Pediatric Traumatic Brain Injury: Single-Center, Retrospective Cohort, 2010-2020.
Traumatic brain injury (TBI) is a leading cause of pediatric morbidity and mortality. This study first investigates clinical characteristics and continuous electroencephalography (cEEG) parameters associated with short-term functional outcomes in pediatric patients following TBI. Second, we use these data for a hypothesis-generating model about outcomes. ⋯ Specific cEEG findings observed acutely after injury, in combination with other clinical characteristics, may serve as biomarkers for short-term functional outcomes after pediatric TBI. Further validation of the model in another population is now required.
-
Previous preclinical and translational studies suggest that tissue trauma related to bony fracture and intervertebral disk disruption initiates the formation of pronociceptive antibodies that support chronic musculoskeletal pain conditions. This study tested this hypothesis in the monosodium iodoacetate (MIA) mouse model of osteoarthritis (OA) and extended the findings using OA patient samples. Monosodium iodoacetate was injected unilaterally into the knees of male and female wild-type (WT) and muMT mice (lacking B cells) to induce articular cartilage damage. ⋯ Similarly, intra-articular injection of IgM from patients with OA was pronociceptive in muMT MIA mice and control subject IgM had no effect. Monosodium iodoacetate-injected joints demonstrate elevated levels of complement component 5a (C5a) and C5a receptor blockade using intra-articular PMX-53-reduced sensitization. These data suggest that MIA-treated mice and patients with OA generate pronociceptive antibodies, and further support the pronociceptive autoimmunity hypothesis for the transition from tissue injury to chronic musculoskeletal pain.
-
Temporomandibular disorder (TMD) is the most prevalent painful condition in the craniofacial area. Recent studies have suggested that external or intrinsic trauma to the temporomandibular joint (TMJ) is associated with the onset of painful TMD in patients. Here, we investigated the effects of TMJ trauma through forced-mouth opening (FMO) in mice to determine pain behaviors and peripheral sensitization of trigeminal nociceptors in both sexes. ⋯ Forced-mouth opening also increased Ca2+ responses evoked by cold, heat, and capsaicin stimuli, which was not different between the sexes. In retrogradely labeled trigeminal TMJ afferents, FMO induced an increase in small-sized neuronal proportions with increased colocalization with calcitonin gene-related peptides and transient receptor potential vanilloid subtype 1, which was modestly sex dependent. These results suggest that TMJ injury leads to persistent posttraumatic hyperalgesia associated with peripheral sensitization of trigeminal nociceptors with distinct sex dependency.
-
Uncontrolled hemorrhage is a leading cause of preventable death in trauma. Tourniquets (TQs) are commonly used to control bleeding in the prehospital setting, although their application is associated with risks. Therefore, this study aimed to identify complications arising from TQ use and to examine contributing risk factors. ⋯ This study found that a significant trauma in prehospital settings requiring TQ application is associated with a high rate of complications. Early complications, including local infections and compartment syndrome, were more frequent, whereas late complications like thromboembolism and muscle atrophy were less common. The findings suggest that factors such as the MOI and wound contamination may contribute to these complications, yet after applying multivariate regression, LOS and falls were the only variables found to be significantly associated with the development of complications. These findings underscore the need for further research comparing casualties with and without TQ application.