Publications by authors named "Vikram Raghu"

Background: Central line-associated bloodstream infections (CLABSIs) are the leading cause of hospitalization in pediatric short bowel syndrome, disproportionately impacting socioeconomically disadvantaged children. We examined changes in overall CLABSI rates over time and assessed whether socioeconomic disparities persist.

Methods: Using the Pediatric Health Information System database, we studied short bowel syndrome patients aged <18 years hospitalized between 2015 and 2023.

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Cost-effectiveness analysis is a comparative methodology used to determine how costs and benefits align for a given treatment when evaluated against one or more competing strategies. In intestinal failure, this may include direct comparisons between medical treatments vs transplant or individual care decisions. Teduglutide and antimicrobial lock therapy provide two recent examples of treatments in the United States that came under scrutiny due to cost.

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Importance: Neonatal short bowel syndrome with intestinal failure is rare, and observational studies are limited to small cohorts. Health disparities exist in long-term management with little known about the initial hospitalization.

Objective: To identify children with neonatal short bowel syndrome with intestinal failure and to determine whether race, ethnicity, and neighborhood opportunity are associated with length of stay during their initial hospitalizations.

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Intestine transplant can have significant health and quality-of-life benefits for those who require it. Despite its infrequent use, intestine transplant remains a mainstay of treating those with complications from long-term parenteral nutrition due to intestinal failure, as well as salvage therapy for those with a significant abdominal catastrophe. In 2023, there were 135 candidates added to the intestine transplant waiting list.

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Objective: Sepsis is associated with significant morbidity and mortality in pediatric hematology, oncology, and transplant (PHOT) patients. This study characterized PHOT patients who developed hospital-onset sepsis more than 12 hours after admission and identified risk factors for 30-day sepsis-attributable (SA) mortality.

Patients And Methods: We analyzed an existing multicenter database of sepsis collected prospectively over 5 years (2017-2021) as part of the Improving Pediatric Sepsis Outcomes Collaborative.

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Background: Despite the existence of institutional protocols, liver transplant centers often have variability in early immunosuppression practices. We aimed to measure within-center variability in early immunosuppression after pediatric liver transplant (LT) and examine its association with one-year outcomes.

Methods: We analyzed pediatric LTs from 2013 to 2018 in the United Network for Organ Sharing registry, with data aggregated by center.

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Individuals with intestinal failure are at risk of micronutrient deficiencies, including iodine, an essential trace element critical for thyroid hormone production. In patients entirely dependent on parenteral nutrition, options for replenishing and maintaining iodine levels are severely restricted as oral forms have limited absorption, and intravenous alternatives are unavailable. Ethiodized oil (Lipiodol-TM) is an iodinated contrast agent with an unusually long half-life that can be given orally or injected into a target organ.

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Background: Low neighborhood income is linked with increased hospitalizations for central line-associated bloodstream infections (CLABSIs) in pediatric short bowel syndrome (SBS). We assessed whether this relationship varies by hospital center.

Methods: We performed a retrospective cohort study using the Pediatric Health Information System (2018-2023) database for patients <18 years old with SBS (N = 1210) at 24 hospitals in the United States.

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Introduction: Intestinal failure, defined as the loss of gastrointestinal function to the point where nutrition cannot be maintained by enteral intake alone, presents numerous challenges in children, not least the timing of consideration of intestine transplantation.

Objectives: To describe the evolution of care of infants and children with intestinal failure including parenteral nutrition, intestine transplantation, and contemporary intestinal failure care.

Methods: The review is based on the authors' experience supported by an in-depth review of the published literature.

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Background: There is limited data in the literature about pediatric kidney transplant (KT) following gut transplant (GT). The purpose of this study is to highlight the technical challenges and outcomes of KT in pediatric gut recipients who developed kidney failure (KF).

Methods: A retrospective single-center study of pediatric GT recipients from January 2000 to December 2019 was performed.

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Mucinous rectal cancer (MRC) is defined by the World Health Organization as an adenocarcinoma with greater than 50% mucin content. Classic teaching suggests that it carries a poorer prognosis than conventional rectal adenocarcinoma. This poorer prognosis is thought to be related to mucin dissecting through tissue planes at a higher rate, thus increasing the stage of disease at presentation.

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Background: Enhanced B-cell presentation of donor alloantigen relative to presentation of HLA-mismatched reference alloantigen is associated with acute cellular rejection (ACR), when expressed as a ratio called the antigen presenting index (API) in an exploratory cohort of liver and intestine transplant (LT and IT) recipients.

Methods: To test clinical performance, we measured the API using the previously described 6-h assay in 84 LT and 54 IT recipients with median age 3.3 y (0.

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Objectives: The Starzl Network for Excellence in Pediatric Transplantation identified optimizing immunosuppression (IS) as a priority practice improvement area for patients, families, and providers. We aimed to evaluate associations between clinical characteristics, early IS, and outcomes.

Methods: We analyzed pediatric liver transplant (LT) data from 2013 to 2018 in the United Network for Organ Sharing (UNOS) and the Society of Pediatric Liver Transplantation (SPLIT) registries.

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Introduction: This study investigated the efficacy and safety of neoadjuvant chemotherapy for locally advance penile squamous cell carcinoma for which current evidence is lacking.

Methods: Included patients had locally advanced penile squamous cell carcinoma with clinical lymph node metastasis treated with at least 1 dose of neoadjuvant chemotherapy prior to planned consolidative lymphadenectomy. Objective response rates were assessed using Response Evaluation Criteria in Solid Tumors v1.

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The advent of social media has changed numerous aspects of modern life, with users developing and maintaining personal and professional relationships, following and sharing breaking news and importantly, searching for and disseminating health information and medical research. In the present paper, we reviewed available literature to outline the potential uses, pitfalls and impacts of social media for providers, scientists and institutions involved in digestive health in the domains of patient care, research and professional development. We recommend that these groups become more active participants on social media platforms to combat misinformation, advocate for patients, and curate and disseminate valuable research and educational materials.

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Objective: To evaluate associations between neighborhood income and burden of hospitalizations for children with short bowel syndrome (SBS).

Study Design: We used the Pediatric Health Information System (PHIS) database to evaluate associations between neighborhood income and hospital readmissions, readmissions for central line-associated bloodstream infections (CLABSI), and hospital length of stay (LOS) for patients <18 years with SBS hospitalized between January 1, 2006, and October 1, 2015. We analyzed readmissions with recurrent event analysis and analyzed LOS with linear mixed effects modeling.

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Purpose Of Review: Advances in pediatric transplant parallel those in adult populations; however, there remain critical unique considerations and differences that require specialized knowledge and a specific skill set to optimize care afforded to the pediatric transplant candidate. We introduce general themes regarding optimization of the transplant candidate that are unique to children.

Recent Findings: The pathologies leading to pediatric organ transplant candidacy differ from adults and a precise understanding of the physiologies and natural histories of such diseases is critical for optimized care.

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Intestinal transplant (ITx) rejection lacks a reliable noninvasive biomarker and rejection surveillance relies on serial endoscopies and mucosal biopsies followed by histologic assessment. Endoscopic biopsies are also essential for identifying other ITx-related complications such as infectious, allergic, and inflammatory graft enteritis as well as post-transplant lymphoproliferative disease or graft versus host disease. In spite of its central role in ITx, published guidelines on endoscopy and biopsy are lacking and significant variability between centers in terms of timing and technical performance exists.

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Article Synopsis
  • The International Intestinal Failure Registry (IIFR) studied outcomes of intestinal failure in a large pediatric group, focusing on identifying factors that affect achieving enteral autonomy within the first year.
  • The study involved 189 patients, primarily with short bowel syndrome, and found that 51.6% achieved early enteral autonomy, while 6.5% died; key findings showed that having an ostomy increased the time needed for enteral autonomy.
  • The results suggest that reducing bowel resection and performing ostomy reversal can help children with intestinal failure achieve enteral autonomy more quickly.
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Background: We aimed to evaluate costs from transplant to discharge in children who had undergone intestine transplant.

Methods: We performed a cross-sectional observational study of pediatric intestine transplant recipients from 2004 through 2020, utilizing the Pediatric Health Information System database. Standardized costs were applied to all charges and converted to 2021 US dollars.

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Introduction: Alpha 1 antitrypsin deficiency (A1ATD) accounts for 21% of all pediatric liver transplants due to metabolic disease in the western world. Donor heterozygosity has been evaluated in adults but not to a recipient with A1ATD.

Methods: The data of patient were retrospectively analyzed and a literature review performed.

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Iron deficiency (ID) is the most common nutritional deficiency affecting children undergoing intestinal rehabilitation (IR). Patients may be asymptomatic or present with nonspecific symptoms including fatigue, irritability, and dizziness. The diagnosis of ID in this population can be complicated by the coexistence of systemic inflammation or other nutritional deficiencies which may mimic ID.

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Objective: Sepsis causes morbidity and mortality in pediatric patients, but timely antibiotic administration can improve sepsis outcomes. The pharmacy department can affect the time from order to delivery of antibiotics. By evaluating the pharmacy process, this study aimed to decrease the time from antibiotic order to delivery to within 45 minutes.

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Objectives: The objectives of this study was to describe variation in induction regimen, identify predictors of induction immunosuppression (IS) choice, and examine the impact of induction IS regimen on length of stay (LOS) and total perioperative costs in pediatric liver transplant recipients.

Methods: We analyzed liver transplant utilization data in the Pediatric Health Information System database. Patients were divided into 3 induction IS groups: (1) steroids only, (2) T-cell depleting antibody (TDA), and (3) non-TDA.

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