Publications by authors named "Carpenter P"

Objectives: Present a clinically challenging case of an immunocompetent 74-year-old male who presented with marked dyspnea and hemoptysis. After the airway was secured, direct laryngoscopy revealed a large, fungating, hemorrhagic mass of the left lateral pharyngeal wall and surrounding structures.

Methods: Chart review of a single patient.

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Purpose: This study explores the mental health and well-being, overall job satisfaction, likelihood to leave position, and perceptions of job satisfiers and stressors and dissatisfiers in a national sample of program and institutional coordinators in graduate medical education (GME).

Method: Between August and September 2022, 11,887 program and institutional coordinators and managers with email addresses listed in the Accreditation Council for Graduate Medical Education database were emailed a survey link. The survey queried mental health using the Patient Health Questionnaire 8 depression scale, Generalized Anxiety Disorder 7, and a 2-item burnout scale derived from the Maslach Burnout Inventory; overall satisfaction with work; likelihood to leave work; and drivers of satisfaction and dissatisfaction.

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Current literature lacks details on the impact of pediatric chronic graft-versus-host disease (cGVHD) on long-term survivorship after allogeneic hematopoietic cell transplantation (HCT). Nonetheless, cGVHD remains a leading cause of post-transplant morbidity and mortality in children and adolescents, which is particularly relevant given the longer life-expectancy after HCT (measured in decades) compared to older adults. To address this knowledge gap, leaders of the Pediatric Transplant and Cellular Therapy Consortium convened a multidisciplinary taskforce of experts in pediatric cGVHD and HCT late effects known as RESILIENT after Chronic GVHD (Research and Education towards Solutions for Late effects to Innovate, Excel, and Nurture after cGVHD).

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Article Synopsis
  • * Among 3,479 HCT patients, 416 had an initial CDI, with a recurrence rate of 10% within 12 weeks; metronidazole monotherapy was linked to a higher risk of recurrence.
  • * Results indicate that while only a small percentage required hospital admission after recurrence, no patients died within 30 days, highlighting the need for further research to understand the risk factors for recurrence and to improve treatment strategies.
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  • After allogeneic hematopoietic cell transplantation (HCT), only a small fraction of donor stem cells help reconstitute the recipient's blood system, while the donor maintains a nearly normal stem cell pool.
  • Researchers studied blood samples from 16 donor-recipient pairs, focusing on potential clonal hematopoiesis (CH) variants that could arise due to extra stress on donor cells post-transplant.
  • Results showed similar mutation rates in both donors and recipients, with a small percentage of shared variants showing a significant increase in recipients over time, indicating that the human hematopoietic system has strong regenerative abilities even many years after HCT.
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Revaccination to restore immunity to vaccine-preventable diseases (VPDs) is essential risk mitigation in the prevention of infectious morbidity and mortality after hematopoietic cell transplantation (HCT). However, revaccination rates have been shown to be insufficient and to what extent vaccine hesitancy contributes to survivors not becoming fully revaccinated is unknown. We performed a cross-sectional, mixed methods survey-based study to explore how vaccine hesitancy influences revaccination among US adult HCT survivors who were 2 to 8 years after transplant.

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Background: Hematopoietic cell transplant (HCT) survivorship care includes recommendations for post-HCT revaccination to restore immunity to vaccine-preventable diseases (VPDs). However, not all survivors agree to be vaccinated. No existing studies have comprehensively reported barriers and facilitators to adult HCT survivors completing revaccination.

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Article Synopsis
  • * A panel of experts made recommendations emphasizing the use of bone marrow as a graft source and preferred rabbit antithymocyte globulin over horse ATG for conditioning. They also support using fludarabine for high-risk patients and expanding HCT eligibility to fit older adults.
  • * The panel advocates prioritizing matched unrelated or haploidentical donor transplants over immunosuppressive therapy when a matched related donor isn't available and suggests specific GVHD prophylaxis options for donor
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Comprehensive survivorship care after hematopoietic cell transplantation (HCT) includes revaccination to restore immunity to vaccine-preventable diseases (VPDs). There is complexity to revaccination in this setting, and revaccination rates are sub-optimal. HCT survivors are at high-risk for morbidity and mortality from infections including VPDs, underscoring the importance of interventions to improve revaccination rates among survivors.

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Background: Pediatric hematopoietic cell transplant (HCT) recipients are at high-risk for morbidity from influenza virus infection. We demonstrated in a primary phase II randomized controlled trial that two post-HCT doses of high-dose trivalent influenza vaccine (HD-TIV) given four weeks apart were more immunogenic than two doses of standard-dose quadrivalent influenza vaccine (SD-QIV). Herein, we present immunogenicity and safety of influenza vaccination in a consecutive season post-HCT using the same dosing regimen.

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Donor-specific anti-HLA antibodies (DSA) are an important cause of engraftment failure and may negatively impact survival outcomes of patients receiving allogeneic hematopoietic stem cell transplantation (HSCT) using an HLA-mismatched allograft. The incidence of DSA varies across studies, depending on individual factors, detection or identification methods and thresholds considered clinically relevant. Although DSA testing by multiplex bead arrays remains semiquantitative, it has been widely adopted as a standard test in most transplant centers.

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Since 2005, there has been a steady decline in chronic graft-versus-host disease (cGVHD) at the Fred Hutchinson Cancer Center. To better understand this phenomenon, we studied the risk of cGVHD requiring systemic immunosuppression (cGVHD-IS) as a function of hematopoietic cell transplantation (HCT) date in 3066 survivors from 2005 through 2019. Cox regression models were fit to assess associations of HCT date (as a continuous linear variable) with cause-specific hazards of cGVHD using unadjusted and adjusted models.

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Objective: Despite incremental increases in lesbian, gay, bisexual, transgender, queer/questioning (LGBTQ+) health education, there are no uniform training requirements in graduate medical education and the extent to which pediatrics residency programs incorporate LGBTQ+ curricula remains unknown. We aimed to assess the current state of LGBTQ+ health education in pediatrics residency programs.

Methods: We surveyed all 202 Accreditation Council for Graduate Medical Education (ACGME)-accredited categorical pediatrics program directors (PDs) in the United States.

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Chimeric antigen receptor (CAR) T-cell therapy is rapidly advancing, offering promising treatments for patients with hematological malignancy. However, associated infectious complications remain a significant concern because of their contribution to patient morbidity and non-relapse mortality. Recent epidemiological insights shed light on risk factors for infections after CAR T-cell therapy.

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Article Synopsis
  • Chronic graft-versus-host disease (GVHD) is a serious complication after allogeneic stem cell transplants, and the PQRST study aims to find predictors for how patients respond to different treatments.
  • The study involves a prospective cohort of patients receiving systemic therapy for chronic GVHD, with assessments taken at the start and throughout treatment to track responses.
  • As of March 2024, 137 patients have been enrolled in the study, which started in July 2020, and researchers are inviting collaboration to use the collected data.
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Cutaneous sclerosis, a highly morbid subtype of chronic graft-versus-host disease (GVHD), demonstrates limited treatment response under current National Institutes of Health (NIH) response measures. We explored novel sclerosis-specific response measures using Chronic GVHD Consortium data. A training cohort included patients with cutaneous sclerosis from a randomized trial of imatinib vs rituximab and a consortium observational study.

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Chronic graft-versus-host disease (GVHD) is an immune-mediated disorder that causes significant late morbidity and mortality following allogeneic hematopoietic cell transplantation. The "Close Assessment and Testing for Chronic GVHD (CATCH)" study is a multi-center Chronic GVHD Consortium prospective, longitudinal cohort study designed to enroll patients before hematopoietic cell transplantation and follow them closely to capture the development of chronic GVHD and to identify clinical and biologic biomarkers of chronic GVHD onset. Data are collected pre-transplant and every two months through one-year post-transplant with chart review thereafter.

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Acute encephalopathy, manifesting clinically as delirium, is a common but often unrecognized complication of hematopoietic cell transplantation (HCT). Delirium can occur in patients of any age and is observed after autologous or allogeneic HCT. Although delirium has been studied primarily during initial HCT hospitalizations in recipients of myeloablative conditioning, recent investigations have identified delirium later post-transplantation and in recipients of reduced-intensity conditioning.

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  • Chimeric antigen receptor T cell therapy (CAR-T) has significantly improved treatment for relapsed and/or refractory multiple myeloma (RRMM), but treatment failures remain common, posing major challenges in patient management.
  • An online survey, conducted by the American Society for Transplantation and Cellular Therapy (ASTCT) Committee on Practice Guidelines, gathered insights from 80 physicians regarding their practices for monitoring and addressing CAR-T failures in RRMM patients.
  • The survey revealed variations across treatment centers, particularly in post-CAR-T evaluation practices and available rescue therapies, highlighting the need for collaborative research and established clinical guidelines to improve patient outcomes.
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  • Physicians aim to cure underlying diseases in patients undergoing hematopoietic cell transplantation (HCT), but ultimately focus on enhancing the survivors' quality of life, particularly through supporting their return to work (RTW).
  • A survey of 994 post-HCT survivors revealed that while many had worked before their diagnosis, only 53% were currently employed, with factors like type of HCT and employer support influencing their ability to return to work.
  • Despite 95% of respondents expressing a need for RTW support from their transplant centers, only 13% had received such assistance, highlighting a gap in resources and information on available support and benefits for survivors.
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Background: Patients with multiple myeloma (MM) may be on therapy for years, which can lead to financial toxicity (FinTox) or time toxicity (TimeTox). The prevalence, predictors, and quality of life (QOL) impacts of FinTox and TimeTox during different phases of MM treatment have not been characterized.

Patients And Methods: We conducted a single-center cross-sectional survey of patients with MM who had undergone transplantation.

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Despite emergence of novel therapies to treat hematologic malignancies, allogeneic hematopoietic cell transplantation (allo-HCT) remains an essential treatment modality capable of curing these diseases. Allo-HCT has been also shown to be curative in benign hematologic disorders such as aplastic anemia, sickle cell disease, and thalassemia, among others. Recently, the American Society for Transplantation and Cellular Therapy (ASTCT) published standardized definitions for hematopoietic recovery, graft rejection, graft failure, poor graft function, and donor chimerism.

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