Publications by authors named "David Efron"

Recent literature advocates for delayed or avoidance of catheter drainage of infected peri-pancreatic collections (IPCs) in acute pancreatitis (AP). This may not be realistic for patients at academic centers, many of whom are critically ill. We retrospectively reviewed 72 patients admitted to our institution from 2016-2021 with AP and IPCs.

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Introduction: This study aimed to determine whether surgical stabilization of rib fractures (SSRF) is associated with worse outcomes in individuals with multicompartmental injuries.

Materials And Methods: A retrospective review of a prospective trauma registry was performed for adult blunt trauma patients (aged ≥ 18 y) with Injury Severity Score ≥ 15 and radiographic evidence of rib fractures (2015-2020). Individuals without concomitant head, abdomen/pelvis, or lower extremity Abbreviated Injury Scale scores ≥ 3 were excluded.

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Background: Transplant recipients are living longer than ever before, and occasionally require acute care surgery for nontransplant-related issues. We hypothesized that while both acute care surgeons (ACS) and transplant surgeons would feel comfortable operating on this unique patient population, both would believe transplant centers provide superior care.

Methods: To characterize surgeon perspectives, we conducted a national survey of ACS and transplant surgeons.

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Background: Long-term outcomes after trauma admissions remain understudied. We analyzed the characteristics of inpatient readmissions within 6 months of an index hospitalization for traumatic injury.

Methods: Using the 2010 to 2015 Nationwide Readmissions Database, which captures data from up to 27 US states, we identified patients at least 15 years old admitted to a hospital through an emergency department for blunt trauma, penetrating trauma, or burns.

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Background: Surgeons perform emergent exploratory laparotomies (ex-laps) for a myriad of surgical diagnoses. We characterized common diagnoses for which emergent ex-laps were performed and leveraged these groups to improve risk-adjustment models for postoperative mortality.

Methods: Using American Association for the Surgery of Trauma criteria, we identified hospitalizations where the primary procedure was an emergent ex-lap in the 2012 to 2014 (derivation cohort) and 2015 (validation cohort) Nationwide Inpatient Sample.

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Background: Limited data exist for long-term outcomes after emergency general surgeries (EGSs) in the United States. This study aimed to characterize the incidence of inpatient readmissions and additional operations within 6 months of an EGS procedure.

Methods: In this retrospective observational study, we identified adults (≥18 years old) undergoing one of seven common EGS procedures (appendectomies, cholecystectomies, small bowel resections, large bowel resections, control of gastrointestinal [GI] ulcers and bleeding, peritoneal adhesiolysis, and exploratory laparotomies) who were discharged alive in the 2010-2015 National Readmissions Database.

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Background: The aim of this study was to determine whether time to surgery after an initial episode of uncomplicated diverticulitis is associated with undergoing an emergent versus an elective resection.

Methods: In this retrospective, administrative claims database study, we identified patients at least 18 y old in the 2005-2011 California State Inpatient Database who had an initial episode of uncomplicated diverticulitis and then underwent a bowel resection within 2 y. After characterizing the distribution in time to surgery among all patients, we used a multivariable logistic regression to determine whether time to surgery was associated with undergoing an emergent resection.

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Introduction: As the aging American population poses unique challenges to acute care services, we determined if either hospital proportion or annual volume of geriatric patients undergoing emergency general surgery (EGS) procedures is associated with outcomes.

Methods: Using criteria from the American Association of the Surgery of Trauma, we identified five EGS procedures in the 2012-2015 Nationwide Inpatient Sample common in geriatric patients (65+ years). We defined hospital proportion as the fraction of geriatric EGS patients divided by all EGS patients, where volume was the raw number of geriatric EGS patients.

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Background: Severe penetrating liver injuries are associated with high rates of morbidity and mortality. The objective of this study was to demonstrate the 15-year experience of a Level 1 US trauma center with use of intrahepatic balloon tamponade for penetrating liver injuries in adult patients.

Methods: Operative notes were used to identify cases employing intrahepatic balloon tamponade.

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Background: Blood transfusion can be lifesaving for patients with hemorrhage; however, transfusion requirements for victims of gun violence are poorly understood.

Study Design And Methods: In an urban, Level 1 trauma center, 23,422 trauma patients were analyzed in a retrospective cohort study. Patients with gunshot wounds (GSWs) (n = 2,672; 11.

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Background: Patients and hospitals face significant financial burdens from emergency general surgeries (EGSs), which have been termed a public health crisis in the United States. We evaluated hospitalization charges, operating charges, and variations in operating time by surgeon volume for three common EGS procedures.

Methods: Using Maryland's Health Services Cost Review Commission database, we performed a retrospective study of laparoscopic appendectomies, laparoscopic cholecystectomies, and open bowel resections performed by general surgeons among adult patients from July 2012 to September 2014.

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This study uses the Healthcare Cost and Utilization Project Nationwide Emergency Department Sample to examine the number of preventable trauma deaths in US hospitals to provide a target for the National Academies of Sciences, Engineering, and Medicine mandate of zero preventable deaths after injury.

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Background: Despite a focus on improved prehospital care, penetrating injuries contribute substantially to trauma mortality in the United States. We therefore analyzed contemporary trends in prehospital mortality from penetrating trauma in the past decade.

Methods: We identified patients in the The National Trauma Data Bank from 2007 to 2010 ("early period") and 2011 to 2014 ("late period") with gunshot wounds (GSW) and stab wounds (SW), who were treated at hospitals that recorded dead-on-arrival statistics.

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Objective: To assess the relationship between The International Classification of Diseases, Ninth Revision, Clinical Modification-derived conscious status and mortality rates in trauma centres (TC) vs. non-trauma centres (NTC).

Methods: Patients in the 2006-2011 Nationwide Emergency Department Sample meeting, The Centers for Disease Control and Prevention criteria for traumatic brain injury (TBI), with head/neck Abbreviated Injury Scale (AIS) scores ≥3 were included.

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Background: Hospital variation in failure-to-rescue (FTR) rates has partially explained nationwide differences in mortality after elective surgeries. To examine the role of FTR among emergency general surgery, we compared nationwide risk-adjusted mortality, complications, and FTR rates after emergent bowel resections.

Methods: We identified patients who underwent emergent small or large bowel resections in the 2010 to 2011 Nationwide Inpatient Sample using the American Association for the Surgery of Trauma criteria.

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Background: The National Trauma Data Bank (NTDB) includes patient comorbidities. This study evaluates factors of trauma centers associated with higher rates of missing comorbidity data.

Methods: Proportions of missing comorbidity data from facilities in the NTDB from 2011 to 2014 were evaluated for associations with facility characteristics.

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Background: Geriatric patients undergoing emergency general surgery (EGS) face significant morbidity and mortality. We assessed how surgeon and hospital volumes affected these outcomes.

Methods: We identified patients at least 65 years old in Maryland's Health Services Cost Review Commission database from 2012 to 2014 who underwent one of 12 EGS procedures, as defined by the American Association for the Surgery of Trauma, and then calculated four outcomes: mortality rate, the incidence of at least one of eight common in-hospital EGS complications, failure-to-rescue (death after experiencing a postoperative complication), and the 30-day readmission rate.

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Background: Emergency general surgery (EGS) contributes to half of all surgical mortality nationwide, is associated with a 50% complication rate, and has a 15% readmission rate within 30 days. We assessed associations between surgeon and hospital EGS volume with these outcomes.

Study Design: Using Maryland's Health Services Cost Review Commission database, we identified nontrauma EGS procedures performed by general surgeons among patients 20 years or older, who were admitted urgently or emergently, from July 2012 to September 2014.

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Background: Hospital-wide massive transfusion protocols (MTPs) primarily designed for trauma patients may lead to excess blood products being prepared for nontrauma patients. This study characterized blood product utilization among distinct trauma and nontrauma MTPs at a large, urban academic medical center.

Methods: A retrospective study of blood product utilization was conducted in patients who required an MTP activation between January 2011 and December 2015 at an urban academic medical center.

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