Publications by authors named "Jennifer Croke"

Findings from clinical trials have led to advancement of care for patients with gynecologic malignancies. However, restrictive inclusion of patients into trials has been widely criticized for inadequate representation of the real-world population. Ideally, patients enrolled in clinical trials should represent a broader population to enhance external validity and facilitate translation of outcomes across all relevant groups.

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Globally, surveys have identified that medical learners of all levels perceive their oncology instruction to be inadequate. To address these gaps, we systematically developed and implemented the Oncology National Course for Advocacy, Research, and Education (ONCARE), a novel, nationally organized virtual course available to all Canadian medical students and evaluated its impact on oncology competency and interest. ONCARE was designed utilizing Kern's Six-Step Model for Curriculum Development.

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Purpose: Mentorship in the field of radiation oncology (RO) promotes career development and satisfaction. Many individuals, however, do not have access to mentorship or are unsatisfied with their mentorship experience, potentially because of insufficient gender-concordant mentorship opportunities. To address this, the Society for Women in Radiation Oncology (SWRO) created the SWRO Mentorship Program for women, gender minorities, and those with intersecting marginalized identities at all stages of training for physicians and medical physicists.

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Article Synopsis
  • Multimodal AI chatbots, which can process both medical images and text, may offer improved diagnostic accuracy in clinical oncology compared to text-only chatbots, but this difference is still being evaluated.
  • *The study aimed to assess the effectiveness of these chatbots using prompt engineering to generate accurate medical responses to 79 oncology-related questions.
  • *Results indicated that the top-performing chatbot achieved a 72.15% accuracy rate in multiple-choice responses, while free-text responses showed varied performance among chatbots, with some multimodal options performing well.
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Article Synopsis
  • Cervical cancer survivors often experience significant issues related to sexual health, with high rates of sexual dysfunction, distress, and menopausal symptoms reported by patients.
  • A study involving 73 patients showed no strong correlation between self-reported sexual health outcomes and physician-assessed vaginal toxicity, indicating a disparity between patient experiences and medical assessments.
  • Factors such as being non-partnered, using hormone replacement therapy, and receiving higher radiation doses to the vagina were linked to poorer sexual health, suggesting a need for targeted interventions in these areas.
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Purpose: Magnetic resonance image-guided brachytherapy is essential in the management of locally advanced cervical cancer. This study compares disease and toxicity outcomes in cervical cancer patients treated with 24 Gy/3 fractions (Fr) versus the conventional 28 Gy/4 Fr.

Methods And Materials: This retrospective study included 241 consecutive patients with International Federation of Gynecology and Obstetrics 2018 stage IB to IVA cervical cancer treated with definitive chemoradiation between April 2014 and March 2021.

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Objective: To assess clinical outcomes of inguinal lymph node surgical resection compared to primary groin radiotherapy for locally advanced, surgically unresectable vulvar cancer.

Methods: All patients treated with radiation for vulvar cancer were identified between Jan 1, 2000 - Dec 31, 2020 at 2 academic centres. Inclusion criteria were those treated with curative intent primary radiotherapy +/- chemotherapy, tumors >4 cm, and surgically unresectable squamous cell vulvar carcinoma.

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Purpose: Peer mentorship provides professional and personal support between physicians with similar experiences and levels of training. While peer mentorship has shown to benefit academic success and professional growth, little data has examined contextual factors, such as curricular change, that may affect the quality of these relationships. This study aims to explore the impact of a new, nationwide radiation oncology (RO) residency curriculum, known as competence by design (CBD), on peer mentorship experiences between Canadian RO residents.

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Background: The risk factors for acute care utilization in gynecologic oncology patients are poorly understood. This study aimed to evaluate risk factors for the utilization of our centre's acute care radiation nursing clinic (RNC) by gynecologic oncology patients receiving radiotherapy (RT).

Methods: This was a retrospective cohort study of gynecological cancer patients treated with RT at an academic cancer centre between 1 August 2021 and 31 January 2022.

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Article Synopsis
  • - The study assessed how well radiation oncologists and their teams educate patients about radiation therapy, aiming to improve and make patient education more accessible.
  • - An anonymous survey was conducted with members of the Radiation Oncology Education Collaborative Study Group, revealing that most respondents worked in academic settings and primarily used institution-specific resources for patient education.
  • - Results indicated significant differences in educational practices based on the type of clinical encounter and highlighted challenges such as time constraints and a lack of diverse, customizable resources for patient education.
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Purpose: Most cervical cancers are caused by human papilloma virus (HPV), and HPV circulating tumor DNA (ctDNA) may identify patients at highest risk of relapse. Our pilot study using digital polymerase chain reaction (dPCR) showed that detectable HPV ctDNA at the end of chemoradiation (CRT) is associated with inferior progression-free survival (PFS) and that a next-generation sequencing approach (HPV-seq) may outperform dPCR. We aimed to prospectively validate HPV ctDNA as a tool for early detection of residual disease.

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Objective: Wee1 kinase is a crucial regulator of the G2/M checkpoint which prevents entry of damaged DNA into mitosis. Adavosertib (AZD1775), a selective inhibitor of Wee1, induces G2 escape and increases cytotoxicity when combined with DNA damaging agents. We aimed to evaluate the safety and efficacy of adavosertib in combination with definitive pelvic radiotherapy and concurrent cisplatin in patients with gynecological cancers.

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Purpose: Artificial intelligence (AI) has the potential to simplify and optimize various steps of the brachytherapy workflow, and this literature review aims to provide an overview of the work done in this field.

Methods And Materials: We conducted a literature search in June 2022 on PubMed, Embase, and Cochrane for papers that proposed AI applications in brachytherapy.

Results: A total of 80 papers satisfied inclusion/exclusion criteria.

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Purpose: Working parents, and a rising number of adults delivering care for aging relatives, experience numerous challenges in their personal, family, professional, and financial lives owing to multiple responsibilities. This study describes the experiences of Canadian radiation oncologist (RO) parents and family caregivers, reporting challenges that may exist in providing family care with clinical and academic work commitments.

Methods And Materials: Canadian ROs, via RO heads of departments in cancer centers across Canada, and physician members of the Canadian Association of Radiation Oncology were invited to participate in an anonymous online survey between November 2021 and January 2022.

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Purpose: To demonstrate the feasibility of treating cervical cancer patients with MRI-guided brachytherapy (MRgBT) using 24 Gy in 3 fractions (F) versus a standard, more resource-intensive regimen of 28 Gy in 4F, and its ability to meet EMBRACE II planning aims.

Methods And Materials: A retrospective review of 224 patients with FIGO Stage IB-IVA cervical cancer treated with 28 Gy/4F (n = 91) and 24 Gy/3F (n = 133) MRgBT between 2016-2021 was conducted. Multivariable linear regression models were fitted to compare dosimetric parameters between the two groups, adjusting for CTV and T stage.

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Brachytherapy (BT) plays a fundamental role in the treatment of gynecological cancers. Patient education for vaginal self-management and dilator use post-BT involves an interdisciplinary team of healthcare professionals (HCPs) and there is a paucity of post-BT education guidelines. Our objective was to determine the educational needs of gynecological cancer patients surrounding vaginal self-management post-BT and to determine enablers and barriers to the provision of education by HCPs.

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The lesbian, gay, bisexual, transgender, queer/questioning and two-spirited, plus (LGBTQ2 +) community experiences cancer-related health disparities and inequities. Our objective was to assess LGBTQ2 + knowledge, attitudes, practices and education interest of healthcare professionals (HCPs), identify opportunities to improve care and inform the development of an HCP education curriculum. This was a mixed methods quality improvement study conducted within a tertiary academic cancer centre.

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Background: Malignant bowel obstruction (MBO) in patients with advanced gynecologic cancer (GyCa) can negatively impact clinical outcomes and quality of life. Oncology nurses can support these patients with adequate tools/processes.

Problem: Patients with GyCa with/at risk of MBO endure frequent emergency or hospital admissions, impacting patient care.

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Purpose: Tumor hypoxia is associated with poor response to radiation (RT). We previously discovered a novel mechanism of metformin: enhancing tumor RT response by decreasing tumor hypoxia. We hypothesized that metformin would decrease tumor hypoxia and improve cervical cancer response to RT.

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This study sought to report the degree to which postgraduate trainees in radiation oncology perceive their education has been impacted by the COVID-19 pandemic. A cross-sectional online survey was administered from June to July 2020 to trainee members of the Canadian Association of Radiation Oncology (CARO) (n = 203). Thirty-four trainees responded with a 17% response rate.

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Despite the known importance and necessity of the standardized collection and use of patient-reported outcomes (PROs), there remain challenges to successful clinical implementation. Facilitated through a quality improvement initiative spearheaded by the Canadian Partnership for Quality Radiotherapy (CPQR), and now guided by the Canadian Association of Radiation Oncology (CARO)'s Quality and Standards Committee, patient representatives and early-adopter radiation treatment programs continue to champion the expansion of PROs initiatives across the country. The current review discusses the evolution of a pan-Canadian approach to PROs use, striving to fill in gaps between clinical practice and guideline recommendations through multi-centre and multidisciplinary collaboration.

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Introduction: Brachytherapy is an essential component of the cervical cancer treatment paradigm as it contributes to improved clinical outcomes and overall survival. Yet brachytherapy remains globally underutilized, with disparities in access at both national and international levels.

Areas Covered: The review explores current brachytherapy utilization practices and efforts being undertaken to address barriers to implementation in low-, middle-, and high-income countries, and how these efforts are projected to impact future brachytherapy access.

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Purpose: Brachytherapy is a required clinical competency within radiation oncology training but decreased utilization and volume have limited trainee exposure. Simulation-based medical education is an established educational tool that allows learners to engage in higher-order learning in a safe space and has unique application in brachytherapy instruction.

Methods And Materials: We reviewed best practices in curriculum development for simulation-based medical education in brachytherapy, current works in brachytherapy simulation, and identify areas for future development.

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Patient engagement and education have been mandated across Canadian radiation oncology programs (ROP). Guidance documents include the 2014 Canadian Association of Radiation Oncology (CARO) Radiation Therapy Patient Charter, the 2016 Canadian Partnership for Quality Radiotherapy (CPQR) Patient Engagement Guidelines (PEG) for Canadian Radiation Treatment Programs, and Accreditation Canada's 2017 refresh of Cancer Care Standards. Since little is known regarding uptake of these guidance statements, Canadian ROP were surveyed to assess current patient engagement and education practices.

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Background: Mentorship fosters professional and personal growth; however, the components essential to program success remain unclear. Our objective was to evaluate and explore the impact of a junior faculty mentorship program within an academic radiation oncology department.

Materials And Methods: In 2016, our institution implemented a junior faculty mentorship program consisting of: (1) an orientation handbook; (2) faculty development sessions; and (3) direct, one-to-one selection of a mentor.

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