Publications by authors named "David Galloway"

Background: There is little data on gut microbiome and various factors that lead to dysbiosis in pediatric intestinal failure (PIF). This study aimed to characterize gut microbiome in PIF and determine factors that may affect microbial composition in these patients.

Methods: This is a single-center, prospective cohort study of children with PIF followed at our intestinal rehabilitation program.

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Introduction: Interventions to curb the spread of COVID-19 during the 2020-2021 influenza season essentially eliminated influenza during that season. Given waning antibody titers over time, future residual population immunity against influenza will be reduced. The implication for the subsequent 2021-2022 influenza season is unknown.

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Background: Small bowel bacterial overgrowth (SBBO) is a common, but difficult to diagnose and treat, problem in pediatric short bowel syndrome (SBS). Lack of clinical consensus criteria and unknown sensitivity and specificity of bedside diagnosis makes research on this potential SBS disease modifier challenging. The objective of this research was to describe clinical care of SBBO among international intestinal rehabilitation and nutrition support (IR&NS) providers treating patients with SBS.

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Background: Children are important in community-level influenza transmission. School-based monitoring may inform influenza surveillance.

Methods: We used reported weekly confirmed influenza in Allegheny County during the 2007 and 2010-2015 influenza seasons using Pennsylvania's Allegheny County Health Department all-age influenza cases from health facilities, and all-cause and influenza-like illness (ILI)-specific absences from nine county school districts.

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Article Synopsis
  • Pediatric intestinal failure (PIF) is a rare condition that needs specialized care and nutrition management.
  • There has been confusion over key terms related to PIF due to the lack of large studies and varying definitions.
  • The ASPEN PIF Section aims to create evidence-based definitions to improve the consistency of clinical research and patient outcome measurements.
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Background: Central line associated bloodstream infections are a common cause of bacteremia and sepsis in pediatric patients with intestinal failure, secondary to long-term CVC use.

Methods: An IRB approved retrospective chart review was conducted on TPN-dependent patients with IF who had an identified CLABSI and presented to Children's of Alabama's emergency department (ED) and were admitted to the hospital.

Results: Forty-four patients were included in the study, 28 in the first 18-month period and 26 in the second, with 10 in both populations.

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Background: Ethanol lock use has been associated with significantly lower rates of central line-associated bloodstream infection (CLABSI) in children with intestinal failure. Concerns have been raised among intestinal rehabilitation program providers regarding the impact of recent changes in cost and availability of ethanol locks in the US.

Methods: We conducted a survey among the members of the North American Society For Pediatric Gastroenterology, Hepatology & Nutrition Intestinal Rehabilitation Special Interest Group (NASPGHAN IR-SIG) regarding practice changes among providers to tackle this issue and the anticipated effect on CLABSI rates.

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Background: Information on the etiology and age-specific burden of respiratory viral infections among school-aged children remains limited. Though school aged children are often recognized as driving the transmission of influenza as well as other respiratory viruses, little detailed information is available on the distribution of respiratory infections among children of different ages within this group. Factors other than age including gender and time spent in school may also be important in determining risk of infection but have been little studied in this age group.

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Comparisons of the utility and accuracy of methods for measuring social interactions relevant to disease transmission are rare. To increase the evidence base supporting specific methods to measure social interaction, we compared data from self-reported contact surveys and wearable proximity sensors from a cohort of schoolchildren in the Pittsburgh metropolitan area. Although the number and type of contacts recorded by each participant differed between the two methods, we found good correspondence between the two methods in aggregate measures of age-specific interactions.

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Background: In this study, we aim to determine the effect of scheduled antibiotics on gut microbiome in pediatric intestinal failure (IF) and to evaluate the effect of the gut microbiome on nutrition outcomes in IF.

Methods: Fecal samples were collected at regular intervals from pediatric patients with IF for gut microbiome comparison between 2 cohorts: (group 1) those on scheduled prophylactic antibiotics and (group 2) those who were not on scheduled antibiotics. Gut microbiome composition and diversity were compared among the 2 cohorts.

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Background: The coronavirus disease 2019 (COVID-19) pandemic has influenced how healthcare is being provided, particularly in patients whose diagnoses require multidisciplinary care, such as pediatric intestinal failure (IF). We sought to ascertain the effects of the COVID-19 pandemic on healthcare delivery for pediatric patients with IF.

Methods: A 20-question survey was administered to members of the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition Intestinal Rehabilitation (IR) Special Interest Group.

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Comparisons of the utility and accuracy of methods for measuring social interactions relevant to disease transmission are rare. To increase the evidence base supporting specific methods to measure social interaction, we compared data from self-reported contact surveys and wearable proximity sensors from a cohort of schoolchildren in the Pittsburgh metropolitan area. Although the number and type of contacts recorded by each participant differed between the two methods, we found good correspondence between the two methods in aggregate measures of age-specific interactions.

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Gastrosplenic fistula is a very rare entity, most commonly occurring as a distinctive complication of splenic or gastric malignancies, most notably diffuse large B cell lymphoma (DLBCL). Benign gastric ulcer, splenic abscess, and Crohn's disease have also been reported as possible causes. We report a nonmalignant case of 16-year-old male with a gastrosplenic fistula of unclear etiology.

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Background: We sought to evaluate the relationship between determinants of intestinal failure (IF) and achieving enteral autonomy from parenteral nutrition (PN) in a large single-center cohort of children.

Methods: This is a retrospective chart review of pediatric subjects enrolled in a database for the Center for Advanced Intestinal Rehabilitation at Children's of Alabama from 1989 to 2016. IF was defined as dependence on PN for >60 days.

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Surgery is the mainstay of cancer treatment and lack of surgical treatment is a major driver in holding back optimal cancer care. Surgery is essential for global cancer care in all resource settings. Of the estimated 18.

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Importance: Vaccine exemptions, which allow unvaccinated children to attend school, have increased by a factor of 28 since 2003 in Texas. Geographic clustering of unvaccinated children facilitates the spread of measles introductions, but the potential size of outbreaks is unclear.

Objective: To forecast the range of measles outbreak sizes in each metropolitan area of Texas at 2018 and future reduced school vaccination rates.

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Background/purpose: Although pediatric intestinal failure (IF) is now a survivable diagnosis, children are still at risk for complications. Loss of venous access persists as a leading indication for intestinal transplantation. The goal of this study was to identify risk factors for loss of venous access in a pediatric intestinal failure population on long-term PN.

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Objectives: To investigate the utilization of CBC and CBC with differential (CBC w/diff) tests at University of Alabama at Birmingham Hospital, and to determine if a reduction in CBC w/diff tests could be achieved without negatively impacting patient care.

Methods: The quantity of testing and distribution of repeated tests before, during, and after an educational intervention were compared.

Results: CBC w/diff tests were ordered 10-fold more frequently than CBC tests.

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Background: We determined qualitative and quantitative serum unconjugated bile acid (SUBA) levels among children with history of intestinal failure (IF) and suspected small bowel bacterial overgrowth (SBBO).

Methods: This was a single-center, case-control pilot study conducted at Cincinnati Children's Hospital Medical Center. Children with history of IF and suspected SBBO were enrolled as subjects.

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Objective: Hurricane Sandy in the Rockaways, Queens, forced residents to evacuate and primary care providers to close or curtail operations. A large deficit in primary care access was apparent in the immediate aftermath of the storm. Our objective was to build a computational model to aid responders in planning to situate primary care services in a disaster-affected area.

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Background: No licensed cholera vaccine is presently available in the United States. Cholera vaccines available in other countries require 2 spaced doses. A single-dose cholera vaccine that can rapidly protect short-notice travelers to high-risk areas and help control explosive outbreaks where logistics render 2-dose immunization regimens impractical would be a major advance.

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Students attending schools play an important role in the transmission of influenza. In this study, we present a social network analysis of contacts among 1,828 students in eight different schools in urban and suburban areas in and near Pittsburgh, Pennsylvania, United States of America, including elementary, elementary-middle, middle, and high schools. We collected social contact information of students who wore wireless sensor devices that regularly recorded other devices if they are within a distance of 3 meters.

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