Four-factor prothrombin complex concentrate is not inferior to andexanet alfa for the reversal or oral factor Xa inhibitors: An Eastern Association for the Surgery of Trauma multicenter study.

Background: Andexanet alfa (AA) is the only FDA-approved reversal agent for apixaban and rivaroxaban (DOAC). There are no studies comparing its efficacy with four-factor prothrombin complex concentrate (PCC). This study aimed to compare PCC to AA for DOAC reversal, hypothesizing noninferiority of PCC.

Propensity weighted analysis of chemical venous thromboembolism prophylaxis agents in isolated severe traumatic brain injury: An EAST sponsored multicenter study.

Background: In patients with severe traumatic brain injury (TBI), clinicians must balance preventing venous thromboembolism (VTE) with the risk of intracranial hemorrhagic expansion (ICHE). We hypothesized that low molecular weight heparin (LMWH) would not increase risk of ICHE or VTE as compared to unfractionated heparin (UH) in patients with severe TBI.

Methods: Patients ≥ 18 years of age with isolated severe TBI (AIS ≥ 3), admitted to 24 level I and II trauma centers between January 1, 2014 to December 31, 2020 and who received subcutaneous UH and LMWH injections for chemical venous thromboembolism prophylaxis (VTEP) were included.

To close or not to close? Wound management in emergent colorectal surgery, an EAST multicenter prospective cohort study.

Background: This study aimed to determine the clinical impact of wound management technique on surgical site infection (SSI), hospital length of stay (LOS), and mortality in emergent colorectal surgery.

Methods: A prospective observational study (2021-2023) of urgent or emergent colorectal surgery patients at 15 institutions was conducted. Pediatric patients and traumatic colorectal injuries were excluded.

Early VTE prophylaxis in severe traumatic brain injury: A propensity score weighted EAST multicenter study.

Background: Patients with traumatic brain injury (TBI) are at high risk of venous thromboembolism events (VTE). We hypothesized that early chemical VTE prophylaxis initiation (≤24 hours of a stable head CT) in severe TBI would reduce VTE without increasing risk of intracranial hemorrhage expansion (ICHE).

Methods: A retrospective review of adult patients 18 years or older with isolated severe TBI (Abbreviated Injury Scale score, ≥ 3) who were admitted to 24 Level I and Level II trauma centers from January 1, 2014 to December 31 2020 was conducted.

Time is domain: factors affecting primary fascial closure after trauma and non-trauma damage control laparotomy (data from the EAST SLEEP-TIME multicenter registry).

Purpose: Damage control laparotomy (DCL) is used for both traumatic and non-traumatic indications. Failure to achieve primary fascial closure (PFC) in a timely fashion has been associated with complications including sepsis, fistula, and mortality. We sought to identify factors associated with time to PFC in a multicenter retrospective cohort.

Dexmedetomidine and paralytic exposure after damage control laparotomy: risk factors for delirium? Results from the EAST SLEEP-TIME multicenter trial.

Purpose: To evaluate factors associated with ICU delirium in patients who underwent damage control laparotomy (DCL), with the hypothesis that benzodiazepines and paralytic infusions would be associated with increased delirium risk. We also sought to evaluate the differences in sedation practices between trauma (T) and non-trauma (NT) patients.

Methods: We reviewed retrospective data from 15 centers in the EAST SLEEP-TIME registry admitted from January 1, 2017 to December 31, 2018.

Safety and efficacy of thromboelastography guidance of antifibrinolytic therapy in trauma patients: An observational cohort analysis.

Background: Tranexamic acid (TXA) is an antifibrinolytic therapy intended to decrease blood loss and improve hemostasis in traumatic hemorrhage. Viscoelastic assays, such as thromboelastography (TEG), allow for the identification of a patient's specific hemostasis. The purpose of this research study was to explore the safety and efficacy of TEG-guided antifibrinolytic therapy in trauma patients.

Trauma and nontrauma damage-control laparotomy: The difference is delirium (data from the Eastern Association for the Surgery of Trauma SLEEP-TIME multicenter trial).

Background: Damage-control laparotomy (DCL) has been used for traumatic and nontraumatic indications. We studied factors associated with delirium and outcome in this population.

Methods: We reviewed DCL patients at 15 centers for 2 years, including demographics, Charlson Comorbidity Index (CCI), diagnosis, operations, and outcomes.

Outcomes in patients with gunshot wounds to the brain.

Introduction: Gunshot wounds to the brain (GSWB) confer high lethality and uncertain recovery. It is unclear which patients benefit from aggressive resuscitation, and furthermore whether patients with GSWB undergoing cardiopulmonary resuscitation (CPR) have potential for survival or organ donation. Therefore, we sought to determine the rates of survival and organ donation, as well as identify factors associated with both outcomes in patients with GSWB undergoing CPR.

Four-factor prothrombin complex concentrate for the reversal of factor Xa inhibitors for traumatic intracranial hemorrhage.

Objective: The objective of this study was to determine the effectiveness and safety of four-factor prothrombin complex concentrate (4F-PCC) for the reversal of factor Xa inhibitors in patients with traumatic intracranial hemorrhage (ICH).

Methods: This was a retrospective cohort study of patients taking factor Xa inhibitors with traumatic ICH between March 1, 2015 and August 31, 2017 at two trauma centers. The primary outcome was in-hospital mortality in patients who received 4F-PCC (4F-PCC group) compared to those who did not (no reversal group).

Cytomegalovirus Reinfections Stimulate CD8 T-Memory Inflation.

Cytomegalovirus (CMV) has been shown to induce large populations of CD8 T-effector memory cells that unlike central memory persist in large quantities following infection, a phenomenon commonly termed "memory inflation". Although murine models to date have shown very large and persistent CMV-specific T-cell expansions following infection, there is considerable variability in CMV-specific T-memory responses in humans. Historically such memory inflation in humans has been assumed a consequence of reactivation events during the life of the host.

Transient CD8-memory contraction: a potential contributor to latent cytomegalovirus reactivation.

It is clear that latent CMV can reactivate in immunocompetent individuals, but the mechanism triggering such reactivations remains unclear. Recent clinical data suggest that reactivation can be subverted by CMV-specific T-memory. We therefore monitored CMV-specific T cells in immunocompetent mice with latent mCMV after a known reactivation trigger (LPS).