- Trauma and Emergency Care Studies
- Cardiac Arrest and Resuscitation
- Emergency and Acute Care Studies
- Pelvic and Acetabular Injuries
- Pregnancy-related medical research
- COVID-19 and healthcare impacts
- Intensive Care Unit Cognitive Disorders
- Injury Epidemiology and Prevention
- Traumatic Brain Injury and Neurovascular Disturbances
- Acute Ischemic Stroke Management
- Abdominal Trauma and Injuries
- Sepsis Diagnosis and Treatment
- Respiratory Support and Mechanisms
- Cardiac, Anesthesia and Surgical Outcomes
- Trauma, Hemostasis, Coagulopathy, Resuscitation
- Gallbladder and Bile Duct Disorders
- Surgical Simulation and Training
- Disaster Response and Management
- Trauma Management and Diagnosis
- Maternal and fetal healthcare
- Pancreatitis Pathology and Treatment
- Venous Thromboembolism Diagnosis and Management
- Hip and Femur Fractures
- Autopsy Techniques and Outcomes
- Gun Ownership and Violence Research
University of California, Irvine
2024-2025
University of California, Irvine Medical Center
2025
Loma Linda University
2017-2024
UC Irvine Health
2024
Loma Linda University Medical Center
2017-2024
University of California, Los Angeles
2011-2024
American College of Surgeons
2017-2024
Core Laboratories (United States)
2024
UCLA Medical Center
2010-2024
University of Arizona
2023
The COVID-19 pandemic resulted in a statewide stay-at-home (SAH) order California beginning March 19, 2020, forcing large-scale behavioral changes and taking an emotional economic toll. effects of SAH orders on the trauma population remain unknown. We hypothesized increase rates penetrating trauma, gunshot wounds, suicide attempts, domestic violence Southern after order.A multicenter retrospective analysis all patients presenting to 11 American College Surgeons levels I II centers spanning...
Brain Injury Guidelines (BIG) was developed to effectively use health care resources including repeat head computed tomography (RHCT) scan and neurosurgical consultation in traumatic brain injury (TBI) patients. The aim of this study prospectively validate BIG at a multi-institutional level.This is prospective, observational, trial across nine Levels I II trauma centers. Adult (16 years or older) blunt TBI patients with positive initial (CT) were identified categorized into 1, 2, 3 based on...
BACKGROUND The frailty index is a known predictor of adverse outcomes in geriatric patients. Trauma-Specific Frailty Index (TSFI) was created and validated at single center to accurately identify reliably predict worse among trauma This study aims prospectively validate the TSFI multi-institutional cohort METHODS prospective, observational, trial across 17 American College Surgeons Levels I, II, III centers. All patients (65 years older) presenting during 3-year period were included. status...
Patients with placenta accreta spectrum (PAS) disorders often suffer massive hemorrhage during cesarean hysterectomies (CHyst). A novel strategy to decrease blood loss and minimize perioperative morbidity associated PAS is utilization of ER-REBOA Catheter intraoperatively. In this study, we explore the use CHyst goal minimizing packed red cell (PRBC) transfusions.We conducted a retrospective case-control study at regional referral center consecutive patients undergoing CHyst. The primary...
Abstract Purpose To explore differences based on level of pediatric spinal cord injury (SCI), we compared cervical and thoracic SCI in trauma patients (PTPs), hypothesizing higher mortality length stay (LOS) for SCI. Methods The 2017–2021 Trauma Quality Improvement Program was queried all PTPs ≤ 17 years-old with or Bivariate analyses the two groups. primary outcome secondary outcomes included hospital LOS severity scores (ISS). Logistic regression models were used to determine independent...
Abdominal Morel-Lavalleé (ML) injuries, though rare, are associated with serious clinical implications, such as concomitant hollow viscus injury (HVI). However, research on the incidence of HVI in patients abdominal ML injuries remains lacking. This study aimed to identify and predictors injury. The 2017-2021 Trauma Quality Improvement Program database was queried for ages 18 older. Patients + were compared without HVI. A multivariable logistic regression analysis performed risk factors Of...
Prehospital procedures (PHP) by emergency medical services (EMS) are performed regularly in penetrating trauma patients despite previous studies demonstrating no benefit. We sought to examine the influence of PHPs on outcomes urban locations where transport center is not prolonged. hypothesized that without would have better than those undergoing PHP.This was an Eastern Association for Surgery Trauma-sponsored, multicenter, prospective, observational trial adults (18+ years) with torso...
BACKGROUND Pregnant trauma patients (PTPs) undergo observation and fetal monitoring following due to possible delivery (FD) or adverse outcome. There is a paucity of data on PTP outcomes, especially related risk factors for FD. We aimed identify predictors posttraumatic FD in potentially viable pregnancies. METHODS All PTPs (≥18 years) with ≥24-weeks gestational age were included this multicenter retrospective study at 12 Level-I II centers between 2016 2021. who underwent ((+) FD) compared...
There is mounting evidence that surgical patients with COVID-19 have higher morbidity and mortality than without COVID-19. Infection prevalent amongst the trauma population, but any effect of on unknown. We aimed to evaluate a hypothesizing increased pulmonary complications for COVID-19-positive (COVID) compared propensity-matched COVID-19-negative (non-COVID) patients.A retrospective analysis presenting 11 Level-I II centers in California between 1/1/2019-6/30/2019 1/1/2020-6/30/2020 was...
Abstract Purpose The COVID-19 pandemic resulted in increased penetrating trauma and decreased length of stay (LOS) amongst the adult population, findings important for resource allocation. Studies regarding pediatric population are sparse mostly single-center. This multicenter study examined patients, hypothesizing LOS after 3/19/2020 stay-at-home (SAH) orders. Methods A retrospective analysis patients ≤ 17 years old presenting to 11 centers California was performed. Demographic data, injury...
BACKGROUND Police transport (PT) of penetrating trauma patients in urban locations has become routine certain metropolitan areas; however, whether it results improved outcomes over prehospital Advanced life support (ALS) not been determined a multicenter study. We hypothesized that PT would result outcomes. METHODS This was multicenter, prospective, observational study adults (18+ years) with to the torso and/or proximal extremity presenting at 25 centers. and ALS were allocated via nearest...
This study aimed to (1) identify inpatient complications associated with the greatest differential mortality risk between young and old patients traumatic injury (2) older at elevated for mortality-associated complications.
Damage-control laparotomy (DCL) has been used for traumatic and nontraumatic indications. We studied factors associated with delirium outcome in this population.We reviewed DCL patients at 15 centers 2 years, including demographics, Charlson Comorbidity Index (CCI), diagnosis, operations, outcomes. compared 30-day mortality; renal failure requiring dialysis; number of takebacks; hospital, ventilator, intensive care unit (ICU) days; delirium-free coma-free proportion the first 30 ICU days...
Whole blood (WB) transfusion is a promising alternative to component therapy in hemostatic resuscitation. Use of banked WB requires filtration white cells (leukoreduction) and an established shelf life during which retains coagulant capacities. The goal this study was define the time course coagulation stability leukoreduced compared unfiltered under standard refrigeration conditions.Twelve units were donated by healthy volunteers after routine screening. Five underwent leukocyte five did...
BACKGROUND Traumatic esophageal perforation is rare and associated with significant morbidity mortality. There substantial variability in diagnosis treatment. Esophageal stents have been increasingly used for nontraumatic perforation; however, stenting traumatic not yet standard of care. The purpose this study was to evaluate current management assess the frequency complications stenting. METHODS This an Eastern Association Surgery Trauma multi-institutional retrospective from 2011 2016...
Background: COVID-19 related stay-at-home (SAH) orders created many economic and social stressors, possibly increasing the risk of drug/alcohol abuse in community trauma population.
Existing mortality prediction models have attempted to quantify injury burden following trauma-related admissions with the most notable being Injury Severity Score (ISS). Although easy calculate, it requires additional administrative coding. International Classification of Diseases (ICD)-based such as Trauma Mortality Prediction Model (TMPM-ICD10) circumvent these limitations, but they use linear modeling, which may not adequately capture intricate relationships injuries on mortality. Using...
Effects of advanced maternal age (AMA) pregnancies (defined as ≥35 years) on pregnant trauma patients (PTPs) are unknown. This study compared AMA versus younger PTPs, hypothesizing PTPs have increased risk fetal delivery (FD).A retrospective (2016-2021) multicenter included all PTPs. Multivariable logistic regression was used to evaluate FD after trauma.A total 950 were included. Both cohorts had similar gestational and injury severity scores. The group injuries the pancreas, bladder,...