Publications by authors named "Johnston F"

Despite the widely accepted benefits of palliative care for individuals with serious illnesses and their families, the utilisation of this approach remains low. Although an increased use of palliative care services can increase the value of health-care spending by providing comprehensive wraparound services to support care, the economic evidence required to implement, promote, and engage in palliative care models on a wide scale eludes the affected individuals, health-care providers, payers, and policy makers. This gap in evidence is partly owing to the methodological limitations of standard value-assessment frameworks, which do not capture important societal dimensions of the value generated by palliative care.

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Introduction: The standard of care for gastric cancer in the United States involves perioperative chemotherapy. While most post-therapy pathologic staging results are concordant (i.e.

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Introduction: Racial disparities in minimally invasive surgery (MIS) utilization across gastrointestinal (GI) cancers are not well characterized. We evaluated racial/ethnic disparities in the use of MIS approaches and associated outcomes.

Methods: We analyzed a cohort of patients with GI cancer in the National Cancer Database (2010-2020).

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Background: Landscape fire-sourced (LFS) air pollution is an increasing public health concern in the context of climate change. However, little is known about the attributable global, regional, and national mortality burden related to LFS air pollution.

Methods: We calculated country-specific population-weighted average daily and annual LFS fine particulate matter (PM) and surface ozone (O) during 2000-19 from a validated dataset.

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Introduction: Minimally invasive surgery (MIS) is increasingly used in the surgical management of gastric cancer; however, its adoption lags that of other cancers. Most randomized controlled trials comparing MIS to open gastrectomy have been conducted in Asia, with limited data from the United States. This study aimed to compare perioperative, oncologic, and survival outcomes between open, laparoscopic, and robotic gastrectomy in a large US cohort.

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  • A study compared appetite regulation among Parkinson's Disease (PD) patients with cognitive impairment (CI), PD patients without CI, and age-matched controls to understand how these factors influence appetite.
  • Results showed that PD patients with CI consumed significantly less protein and had altered hormone levels, which were linked to decreased hunger and energy intake.
  • The hormones peptide YY (PYY) and glucagon-like peptide 1 (GLP-1) play key roles in appetite control for PD patients, suggesting they are important areas for further research.
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Background: No guidelines exist regarding the management of the uninvolved uterus or adnexa (fallopian tubes and/or ovaries) in patients with peritoneal metastases (PM) from non-gynecologic malignancies. It is unclear whether salpingo-oophorectomy, hysterectomy, or both should be performed when a complete pelvic peritonectomy is otherwise warranted.

Methods: A 25-item electronic survey was sent to 225 surgeons worldwide who routinely perform cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC).

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Racial disparities in surgical oncology research funding significantly impact minority researchers and diverse populations. This review explores historical factors contributing to the underrepresentation of minorities in academic medicine. Strategies for addressing these disparities include enhancing diversity in the physician workforce and improving funding opportunities for minority researchers, with the goal of improving patient outcomes and reducing cancer care disparities.

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Background: Cough severity represents an important endpoint to assess the impact of therapies for patients with refractory chronic cough (RCC).

Objective: To develop a new patient-reported outcome measure addressing cough severity in patients with RCC.

Methods: Phase 1 (item generation): A systematic survey, focus groups, and expert consultation generated 51 items.

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  • The study analyzed breast cancer patients at Johns Hopkins from 2010 to 2021 to determine if those with genetic variants had a higher likelihood of multifocal or multicentric breast cancer (MFMC).
  • Among 282 patients, 24% tested positive for a genetic variant, but there was no significant difference in MFMC rates between variant carriers and non-carriers (28% vs. 22%).
  • The findings suggest that having a genetic variant does not increase the risk of developing MFMC breast cancer, contrary to some beliefs regarding breast-conserving surgery in BRCA gene carriers.
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Introduction: Advanced retroperitoneal sarcoma (RPS) can include unresectable locoregional disease, systemic or multifocal intra-abdominal metastasis, or abdominal sarcomatosis, all of which are associated with high morbidity and may be addressed through palliative therapy. Current trends in the use of palliative therapy and factors associated with its use in patients with advanced RPS remain largely unexplored. The objectives of this study are to (1) describe the temporal trend in the use of palliative therapy and (2) identify factors associated with its use in patients with advanced RPS in the United States from 2004 to 2020.

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The Earth system has long lived with fires, but the impact of climate change on fire regimes has led to extreme wildfire events with higher intensity and faster spread. This has effects on ecosystems and resources, air pollution, and, ultimately, human societies. Facing these compounding challenges require interdisciplinary solutions and collaborations.

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Background: Given the many challenges of conducting research that addresses the palliative and end-of-life care needs of patients with serious illnesses, stakeholder engagement starting from the moment of study conceptualization and design is critical to ensure successful participant recruitment, data collection, intervention delivery, data analysis, and dissemination.

Methods: Guided by a conceptual model published by the Patient-Centered Outcomes Research Institute (PCORI) entitled, "Measuring What Matters for Advancing the Science and Practice of Engagement"14 and with the support of a PCORI Engagement Officer, representatives from 9 PCORI-funded study teams formed a working group to survey team members and review, outline, and describe key lessons learned and best practices for promoting stakeholder engagement in palliative care research.

Results: Almost all study teams engaged with patients/caregivers, clinicians, researchers, and health care system experts as stakeholder partners.

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Background: Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) is an effective but costly procedure for select patients with peritoneal malignancies. The impact of progression along a learning curve on the cost of these procedures is unknown.

Patients And Methods: We performed a retrospective cohort study of patients undergoing CRS-HIPEC from 2016 to 2022 at a single quaternary center.

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Background: Anesthesiologists transition patient care to combat clinician fatigue and accommodate shift limitations. Studies exploring the association of increased handovers with patient outcomes have conflicting findings. Here, we investigate the association of anesthesia handovers with perioperative outcomes in patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy.

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Background: Concurrent palliative care for patients with advanced cancer has been shown to reduce physical and psychological symptoms, and improve the quality of life of patients with advanced cancer. Underutilization of palliative care services, especially among African American patients with advanced cancer, remains an important public health problem. To address this gap, we developed a community health worker (CHW) palliative care intervention for African American patients with advanced cancer, which is being formally assessed through an ongoing effectiveness-implementation trial (NCT05407844).

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Background: Minimally invasive pancreatic surgery (MIPS), when selectively utilized, has been shown to hasten recovery with outcomes comparable to open approaches, but access may not be equitable. This study explored variation in utilization of MIPS for pancreatic cancer.

Methods: The National Cancer Database was queried to identify patients diagnosed with a primary pancreatic neoplasm from 2010 to 2020.

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