Publications by authors named "Shannon Acker"

Background: Traumatic injuries remain the leading cause of death in children aged 1-14. Previous research demonstrates a link between lower socioeconomic status (SES) and higher pediatric injury morbidity and mortality. There is scant research exploring the relationship between neighborhood disadvantage and pediatric trauma.

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Our aim is to determine the rate of unexpected malrotation identified on routine preoperative upper gastrointestinal (UGI) contrast study in infants with congenital heart disease (CHD) prior to gastrostomy tube (GT) placement and quantify any associated delay in care. We performed a retrospective review of infants with CHD who underwent GT placement following initial cardiac surgery at a single center between 2016 and 2021. Patients were identified in the electronic medical record.

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Purpose: Hospital length of stay (LOS) following admission for appendicitis is difficult to predict. Shock index, pediatric age adjusted (SIPA) accurately identifies severely injured trauma patients and predicts mortality among children admitted to the ICU. Our aim was to determine if elevated SIPA at presentation, and time to normalization of SIPA, can identify children with perforated appendicitis and predict hospital LOS.

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Variability in parental leave policies across graduate medical education (GME) programs in the United States complicates efforts to support resident wellness and identify best practices for resident well-being. This review aims to assess how formal parental leave policies affect trainees' well-being, professional satisfaction, and performance during training. A systematic review following the Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) 2020 guidelines was conducted and registered on PROSPERO in May 2023.

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Article Synopsis
  • The diagnosis and management of biliary dyskinesia in children and adolescents is inconsistent, prompting a systematic review by the American Pediatric Surgical Association to create evidence-based recommendations.
  • The review focused on key areas such as diagnostic criteria, the need for cholecystectomy, and outcomes from surgical vs. non-surgical management, but found that diagnostic criteria are unclear and reliable predictors of treatment success are lacking.
  • Pediatric-specific guidelines are needed to clarify this condition, improve diagnostic processes, and determine effective management, along with calls for more prospective studies to identify which patients could benefit from surgery.
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Objective: Treatment of neonates with anorectal malformations (ARMs) can be challenging due to variability in anatomic definitions, multiple approaches to surgical management, and heterogeneity of reported outcomes. The purpose of this systematic review is to summarize existing evidence, identify treatment controversies, and provide guidelines for perioperative care.

Methods: The American Pediatric Surgical Association Outcomes and Evidence Based Practice Committee (OEBP) drafted five consensus-based questions regarding management of children with ARMs.

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Article Synopsis
  • The study aimed to evaluate short-term outcomes such as mortality and length of stay for extremely low birth weight infants with spontaneous intestinal perforation, comparing three surgical approaches: peritoneal drain (PD), laparotomy after PD (PD-LAP), and straight laparotomy (LAP).
  • Out of 729 identified infants, those treated with PD had lower gestational ages and higher infection rates, with PD associated with higher mortality rates compared to PD-LAP and LAP in initial analysis, but this link was not confirmed in more complex statistical models.
  • Ultimately, the findings suggest that the type of initial surgical approach does not significantly affect mortality or length of stay for these infants, indicating that other factors such
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Objective: Our aim was to better understand attitudes towards parental leave from the perspective of both surgeon faculty and current surgical trainees. We hypothesized that support for trainees to take parental leave would vary by year of residency graduation and by parental status.

Design: We conducted a web-based survey regarding opinions on trainee parental leave.

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Objective: The American Pediatric Surgical Association Outcomes and Evidence-Based Practice Committee conducted a systematic review to describe the epidemiology of venous thromboembolism (VTE) in pediatric surgical and trauma patients and develop recommendations for screening and prophylaxis.

Methods: The Medline (Ovid), Embase, Cochrane, and Web of Science databases were queried from January 2000 through December 2021. Search terms addressed the following topics: incidence, ultrasound screening, and mechanical and pharmacologic prophylaxis.

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Introduction: Predicted 1-year survival of children with trisomy 18 (T18) has increased to 59.3%. We aimed to systematically review the characteristics, management, and outcomes of children with T18 and hepatoblastoma.

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Background: No consensus exists for the initial management of infants with gastroschisis.

Methods: The American Pediatric Surgical Association (APSA) Outcomes and Evidenced-based Practice Committee (OEBPC) developed three a priori questions about gastroschisis for a qualitative systematic review. We reviewed English-language publications between January 1, 1970, and December 31, 2019.

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Objective: Surgical trainees who welcome a new child during residency often face challenges related to appropriate parental leave. To address this, we instituted a comprehensive family medical leave policy within our training program and assessed resident perceptions before and after the policy's introduction. We hypothesized that this new formal policy would enhance feelings of support amongst all (not just childbearing) trainees.

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Introduction: There is wide variation in the cost of disposable operating room supplies between surgeons performing the same operation at the same institution. The general relationship between variation in disposable supply cost and patient outcomes is unknown. We aimed to evaluate the relationship between disposable supply cost and patient outcomes for sixteen common operations.

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Article Synopsis
  • Clinical clearance of a child's cervical spine after trauma is difficult due to unreliable neurologic exams; LSMRI may help by providing a quicker, anesthesia-free alternative to standard MRI for detecting ligamentous injuries.
  • A study conducted over five years across 10 centers evaluated 2,663 children and found that LSMRI had a sensitivity and negative predictive value of over 99% for detecting cervical spine injuries and 100% for unstable injuries.
  • The findings support the use of limited-sequence MRI to effectively rule out significant injuries, suggesting that trauma centers implement LSMRI protocols to reduce the need for anesthesia and MRI times.
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Background: Pneumatosis intestinalis (PI, presence of air in bowel wall) develops in a variety of settings and due to a variety of insults which is then characterized by varying severity and clinical course. Anecdotally, many of these cases are benign with few clinical sequelae; however, we lack evidence-based guidelines to help guide management of such lower-risk cases. We aimed to describe the clinical entity of low-risk PI, characterize the population of children who develop this form of PI, determine if management approach or clinical outcomes differed depending on the managing physician's field of practice, and finally determine if a shortened course of NPO and antibiotics was safe in the population of children with low-risk PI.

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Objective: To evaluate for disparities in surgical care among US children with hepatoblastoma (HB) and hepatocellular carcinoma (HCC).

Study Design: In this retrospective National Cancer Database study (2004-2015), children aged <18 years with HB or HCC were included. Multivariable mixed-effects logistic regression was used to evaluate the association of sociodemographic factors (age, sex, race and ethnicity, insurance status, income, proximity to treating hospital) with the odds of undergoing surgical treatment after adjusting for disease-related factors (tumor size, metastasis, comorbidities) and hospital-level effects.

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Introduction: Studies of adults undergoing lung resection indicated that selective omission of pleural drains is safe and advantageous. Significant practice variation exists for pleural drainage practices for children undergoing lung resection. We surveyed pediatric surgeons in a 10-hospital research consortium to understand decision-making for placement of pleural drains following lung resection in children.

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Introduction: Gastrostomy tube (GT) placement is common in infants following repair of congenital heart defects. We aimed to determine rate of operative complications and predictors of short-term GT use to counsel parents regarding the risks and benefits of GT placement.

Methods: We reviewed infants aged <1 y with congenital heart disease who underwent GT placement after cardiac surgery between 2018 and 2021.

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Objective: Our objective was to determine the utility of enteral contrast-based protocols in the diagnosis and management of adhesive small bowel obstruction (ASBO) for children.

Background: Enteral contrast-based protocols for adults with ASBO are associated with decreased need for surgery and shorter hospitalization. Pediatric-specific data are limited.

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Introduction: Our objective was to perform a feasibility study using real-world data from a learning health system (LHS) to describe current practice patterns of wound closure and explore differences in outcomes associated with the use of tissue adhesives and other methods of wound closure in the pediatric surgical population to inform a potentially large study.

Methods: A multi-institutional cross-sectional study was performed of a random sample of patients <18 y-old who underwent laparoscopic appendectomy, open or laparoscopic inguinal hernia repair, umbilical hernia repair, or repair of traumatic laceration from January 1, 2019, to December 31, 2019. Sociodemographic and operative characteristics were obtained from 6 PEDSnet (a national pediatric LHS) children's hospitals and OneFlorida Clinical Research Consortium (a PCORnet collaboration across 14 academic health systems).

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Background: Healthcare-associated pressure injuries (HAPI) are known to be associated with medical devices and are preventable. Cervical spine immobilization is commonly utilized in injured children prior to clinical clearance or for treatment of an unstable cervical spinal injury. The frequency of HAPI has been quantified in adults with cervical spine immobilization but has not been well-described in children.

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Introduction: There is limited literature on the optimal approach to treat adhesive small bowel obstruction (ASBO) in children. We sought to compare rates and outcomes of laparoscopic (LAP) and open (OPEN) surgery for pediatric ASBO.

Methods: A California statewide database was used to identify children (<18 years old) with an index ASBO from 2007 to 2020.

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