572 results match your criteria: "Portland Medical Center[Affiliation]"

Introduction: The aim was to evaluate the clinical significance of multiple rapid swallows (MRS) during high-resolution manometry (HRM) prior to fundoplication. Despite pre-operative HRM, up to 38% of patients report post-fundoplication dysphagia. Suggestion that MRS improves prediction of dysphagia after fundoplication has not been investigated when using a tailored approach.

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ICOS is upregulated on T cells following radiation and agonism combined with radiation results in enhanced tumor control.

Sci Rep

September 2022

Earle A. Chiles Research Institute, Robert W. Franz Cancer Center, Providence Portland Medical Center, 4805 NE Glisan St, North Pavilion, Suite 2N108, Portland, OR, 97213, USA.

Multiple preclinical studies have shown improved outcomes when radiation therapy is combined with immune modulating antibodies. However, to date, many of these promising results have failed to translate to successful clinical studies. This led us to explore additional checkpoint and co-stimulatory pathways that may be regulated by radiation therapy.

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Background: Antimicrobial susceptibility testing (AST) is often needed prior to antimicrobial optimization for patients with gram-negative bloodstream infections (GN-BSIs). Rapid AST (rAST) in combination with antimicrobial stewardship (AS) may decrease time to administration of narrower antibiotics.

Methods: This was a prospective, nonblinded, randomized trial evaluating the impact of a phenotypic rAST method vs conventional AST (cAST) in hospitalized patients with GN-BSI and source control.

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Despite the promise of immune checkpoint inhibition (ICI), therapeutic responses remain limited. This raises the possibility that standard of care treatments delivered in concert may compromise the tumor response. To address this, we employ tobacco-signature head and neck squamous cell carcinoma murine models in which we map tumor-draining lymphatics and develop models for regional lymphablation with surgery or radiation.

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The discovery of immune checkpoint inhibition (ICI) sparked a revolution in the era of targeted anticancer therapy. However, although monoclonal antibodies targeting the cytotoxic T-lymphocyte antigen-4 and programmed death-1 axes have improved survival in patients with advanced cancers, these immunotherapies are associated with a wide spectrum of dermatological immune-related adverse events (irAEs), ranging from mild to life-threatening. Several publications have addressed the clinical and histopathological classification of these skin-directed irAEs, their impact on anti-tumour immunity and survival, and the critical role of supportive oncological dermatology in their management.

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Development and validation of a model to calculate anesthetic agent consumption from inspired and end-expired concentrations, minute ventilation, fresh gas flow and dead space ventilation.

J Clin Monit Comput

February 2023

Associate Professor of Anesthesiology and of Epidemiology (Environmental Health Sciences), Director of Sustainability, Anesthesiology; Affiliated Faculty, Climate Change and Health, Yale University, New Haven, CT, USA.

Anesthetic agent consumption is often calculated as the product of fresh gas flow (FGF) and vaporizer dial setting (F). Because F of conventional vaporizers is not registered in automated anesthesia records, retrospective agent consumption studies are hampered. The current study examines how F can be retrospectively calculated from the agent's inspired (F) and end-expired concentration (F), FGF, and minute ventilation (MV).

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The paradox of radiation and T cells in tumors.

Neoplasia

September 2022

Earle A. Chiles Research Institute, Robert W. Franz Cancer Center, Providence Portland Medical Center, 4805 NE Glisan St., Portland, OR 97213, USA; The Oregon Clinic, Portland, OR, 97213, USA.

In this review we consider what appears to be a paradox in immunotherapies based around radiation therapy. The paradox is based on three main points. 1.

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Article Synopsis
  • - The study identifies the common issue in traditional practice guidelines where the strength of recommendations often doesn't align with the quality of evidence, particularly in managing pyogenic osteomyelitis.
  • - Using a novel, open-access approach leveraging social media, the WikiGuidelines Group conducted an extensive literature review to inform their clinical guidelines while ensuring that recommendations were based only on robust, prospective studies.
  • - The collaborative effort involved 63 experts from various countries, covering multiple medical fields, and aimed to regularly update guidelines as new data emerges, addressing seven key questions related to pyogenic osteomyelitis management.
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Radiation therapy generates extensive cancer cell death capable of promoting tumor-specific immunity. Within the tumor, conventional dendritic cells (cDCs) are known to carry tumor-associated antigens to the draining lymph node (TdLN) where they initiate T-cell priming. How radiation influences cDC migration is poorly understood.

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Adverse effects of events experienced by nursing students as harmful during nursing school have included moral distress, prolonged grief reactions, secondary traumatic stress, and anxiety and depression during nursing school. Nursing student perceptions of potential sources of trauma exposure also known as potentially traumatic events (PTEs) during nursing school are lacking in the literature. The purpose of this study was to describe nursing students' perceptions of potential sources of trauma exposure during nursing school at one private school of nursing.

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Tumor-infiltrating neoantigen-reactive T cells can mediate regression of metastatic gastrointestinal cancers yet remain poorly characterized. We performed immunological screening against personalized neoantigens in combination with single-cell RNA sequencing on tumor-infiltrating lymphocytes from bile duct and pancreatic cancer patients to characterize the transcriptomic landscape of neoantigen-reactive T cells. We found that most neoantigen-reactive CD8 T cells displayed an exhausted state with significant CXCL13 and GZMA co-expression compared with non-neoantigen-reactive bystander cells.

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Article Synopsis
  • Obstructive sleep apnea (OSA) is a serious health issue, especially among U.S. military Veterans, and there's a need to improve diagnosis and treatment due to high demand for these services.
  • This study aims to evaluate the effectiveness of removing the initial provider meeting for OSA diagnosis, analyze home sleep apnea testing (HSAT) accuracy, and create guidelines for HSAT use in at-risk groups.
  • Conducted over four years at three VA sleep medicine sites, the research will track referral times, treatment adherence, patient satisfaction, and ultimately aim to improve OSA clinical practices.
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Introduction: Many postoperative acute care visits (PACVs) are likely more appropriately addressed in lower acuity settings; however, the frequency and nature of PACVs are not currently tracked by the National Surgical Quality Improvement Program (NSQIP), and the overall burden to emergency departments and urgent care centers is unknown.

Methods: NSQIP collaborative data were augmented to prospectively capture 30-d PACVs for 1 y starting October 2018 across all NSQIP specialties, including visit reason and disposition. Data were analyzed using binomial logistic regression.

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Introduction: Lenvatinib is an oral multitargeted tyrosine kinase inhibitor that has shown efficacy and manageable safety across multiple cancer types. The recommended starting doses for lenvatinib differ across cancer types and indications based on whether it is used as monotherapy or as combination therapy.

Areas Covered: This review covers clinical trials that established the dosing paradigm and efficacy of lenvatinib and defined its adverse-event profile as a monotherapy; or in combination with the mTOR inhibitor, everolimus; or the anti-PD-1 antibody, pembrolizumab; and/or chemotherapy.

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Rheumatoid arthritis: Evolving recognition of a common disease.

Best Pract Res Clin Rheumatol

March 2022

Oregon Health and Science University, Portland, United States; VA Portland Medical Center, Portland, United States. Electronic address:

Rheumatoid arthritis (RA) is a highly prevalent autoimmune disease and the most common form of autoimmune inflammatory arthritis. Studies of RA pathogenesis have contributed significantly to understanding the basis for complex immune-mediated disease, identified key steps in the development of autoimmune activation and joint damage in RA, and led to the development of targeted therapies that opened up the era biologic therapy. Current studies are linking differences in gene expression to abnormalities in cellular function that will help optimize therapy for individual patients and advance the goal of personalized medicine.

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Returning Home from COVID Island.

Am J Nurs

March 2022

Deirdre McNally is a critical care nurse at Providence Portland Medical Center, Portland, OR. Contact author: . Reflections is coordinated by Madeleine Mysko, MA, RN: . Illustration by Janet Hamlin. A podcast of this essay is available at www.ajnonline.com .

As the pandemic abates, an ICU nurse struggles to understand what she's experienced.

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Article Synopsis
  • * The event featured presentations from eight expert scientists from Europe and the U.S., drawing in over 200 attendees from various sectors, including academia, the National Institutes of Health, and the pharmaceutical industry.
  • * Discussions included techniques for identifying Lewy body and Alzheimer's pathology, as well as new potential biomarkers for these types of dementia.
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Introduction: In the context of the global pandemic of the SARS-CoV-2 coronavirus (COVID-19), healthcare providers (HCPs) have experienced difficult moral and ethical dilemmas. Research is highlighting the importance of moral injury (MI)-a trauma syndrome related to transgressing personal morals and values-in understanding the psychological harm and occupational impairment experienced by HCPs. To date, MI treatments have largely been developed for military personnel and veterans and rely on in-person one-on-one psychotherapy.

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Mora-López L, Ruiz-Edo N, Estrada-Ferrer O, et al. Ann Surg. 2021;274:e435-42.

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Malignancy has long been implicated with hypercoagulability, leading to an increased rate of both venous and arterial thromboembolic events (VTE and ATE). Immunotherapy has established itself as a cornerstone of modern cancer therapy by promoting antitumor immune responses, though there have been some suggestions that immune-related adverse events could include increased rates of VTE and ATE. In this review, we examine the available evidence regarding the use of immune checkpoint inhibitors (ICIs) and thrombosis.

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Background And Aims: Intestinal metaplasia (IM) in the esophagus is a potentially premalignant mucosal change. The aim of this study was to compare the frequency of IM detection during upper endoscopy by forceps biopsy sampling (FB) versus wide-area transepithelial sampling (WATS) brush.

Methods: Patients presenting for upper endoscopy for foregut symptoms or surveillance of Barrett's esophagus (BE) at 9 centers in the United States were randomized to either FB or WATS.

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A Health Care System's Approach to Support Nursing Leaders in Mitigating Burnout Amid a COVID-19 World Pandemic.

Nurs Adm Q

December 2021

Providence St Joseph Health, Renton, Washington (Dr Trepanier); Providence Portland Medical Center, Portland, Oregon (Dr Henderson); and Swedish Health Services, Seattle, Washington (Dr Waghray).

Burnout has been demonstrating its presence in the nursing profession for decades. The advent of the world pandemic exacerbated the impact of burnout, and health care workers are suffering. In this article, the authors offer a review of burnout and its effect on the nursing profession.

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