Impact of the COVID-19 pandemic on breast cancer surgeries in a Canadian population.

Purpose: The COVID-19 pandemic significantly impacted breast cancer (BC) surgeries. Most studies showing reduced BC surgical volumes during the pandemic are from single institutions, few have described volume changes in different types of surgical procedures. This study aimed to assess the impact of the pandemic on BC surgery volumes and types at a population level.

Metabolic regulation of the glioblastoma stem cell epitranscriptome by malate dehydrogenase 2.

Tumors reprogram their metabolism to generate complex neoplastic ecosystems. Here, we demonstrate that glioblastoma (GBM) stem cells (GSCs) display elevated activity of the malate-aspartate shuttle (MAS) and expression of malate dehydrogenase 2 (MDH2). Genetic and pharmacologic targeting of MDH2 attenuated GSC proliferation, self-renewal, and in vivo tumor growth, partially rescued by aspartate.

Proteomic Profiling Identifies Predictive Signatures for Progression Risk in Patients with Advanced-Stage Follicular Lymphoma.

Follicular lymphoma (FL) is characterized by an indolent nature and generally favorable prognosis, yet poses a particular clinical challenge, since disease progression is observed in a notable subset of patients. Currently, it is not possible to anticipate which patients will be at risk of progression, highlighting the need for reliable predictive biomarkers that can be detected early in the disease. We applied tandem-mass-tag labelled nano-liquid chromatography tandem mass spectrometry (nLC-MS/MS) on 48 diagnostic formalin-fixed, paraffin-embedded tumor samples from patients with advanced-stage FL.

Global distribution and career outcomes of international fellows trained in Canadian gynecologic oncology programs.

Objective: We assessed the global distribution and academic, administrative and research outcomes of international fellows (IFs) trained in Canadian gynecologic oncology (GO) programs.

Methods: A web-based survey was sent to IFs who completed GO training in Canada. Using the Web of science database, we identified the publication list, citation record and H-index of IFs and classified them according to their region of practice: high-income countries (HIC), middle income countries (MIC), and low-income countries (LIC).

Global disparities in cancer supportive care: An international survey.

Background: The global cancer burden is rising, particularly in low- and middle-income countries (LMIC), highlighting a critical research gap in understanding disparities in supportive care access. To address this, the Multinational Association of Supportive Care in Cancer (MASCC) Health Disparities Committee initiated a global survey to investigate and delineate these disparities. This study aims to explore and compare supportive care access disparities between LMIC and High-Income Countries (HIC).

Smoking and alcohol by HPV status in head and neck cancer: a Mendelian randomization study.

HPV-positive and HPV-negative head and neck squamous cell carcinoma (HNSCC) are recognized as distinct entities. There remains uncertainty surrounding the causal effects of smoking and alcohol on the development of these two cancer types. Here we perform multivariable Mendelian randomization (MR) to evaluate the causal effects of smoking and alcohol on the risk of HPV-positive and HPV-negative HNSCC in 3431 cases and 3469 controls.

Implementing routine collection of EQ-5D-5L in a breast cancer outpatient clinic.

Purpose: A cross-sectional study was conducted to investigate the feasibility of implementing routine collection of the Euro-Qol 5 dimensions (EQ-5D) questionnaire, to inform drug and health technology reimbursement decision making.

Methods: Women with breast cancer were recruited during scheduled clinic visits to an academic cancer centre. EQ-5D-5L was self-administered using electronic tablets.

The impact of perioperative transfusions on the oncologic outcomes of patients with ovarian cancer: A population-based study.

Unlabelled: Perioperative blood transfusion in ovarian cancer patients was associated with a 28% increase in all-cause mortality. The negative impact of perioperative blood transfusion extends beyond the immediate postoperative period.

Objectives: The effect of perioperative blood transfusions on long-term oncologic outcomes of patients with advanced ovarian cancer undergoing cytoreductive surgery remains uncertain.

Vertical Partial Laryngectomy With Temporoparietal Free-Flap Reconstruction for Recurrent Laryngeal Cancer: Long-Term Study.

Objective: Treatment options for recurrent early glottic carcinoma's include conservative and radical surgical options. These options offer similar survival benefits with different impacts of patient's quality of life. We previously present our experience with vertical partial laryngectomy (VPL) and showed high locoregional control rates with high-quality voice results and normal swallowing.

Identification of genetic subtypes in follicular lymphoma.

Follicular lymphoma (FL) exhibits considerable variability in biological features and clinical trajectories across patients. To dissect the diversity of FL, we utilized a Bernoulli mixture model to identify genetic subtypes in 713 pre-treatment tumor tissue samples. Our analysis revealed the existence of five subtypes with unique genetic profiles that correlated with clinicopathological characteristics.

Intramuscular Hemangioma of Lateral Rectus Muscle with Rare Presentation as an Epibulbar Mass: A Case Report and Review of Literature.

Introduction: Intramuscular hemangiomas of extraocular muscles are extremely rare tumors that usually present as retro-orbital masses causing proptosis. We describe a previously unreported presentation, in the form of an epibulbar mass; this easily accessible location allows direct imaging, complete surgical resection, and histopathological confirmation, providing a unique perspective.

Case Presentation: A 69-year-old woman presented with a painless dark red mass in the lateral part of the right eye, which had been slowly enlarging over the last 18 months.

The interaction effect between BMI, diabetes and age at diabetes onset on the risk of thyroid cancer: A population-based cohort study in Shanghai, China.

Aim: To determine the association of the presence of diabetes and, among persons with diabetes, the age at type 2 diabetes mellitus (T2DM) onset, BMI and the interactive effect with the subsequent thyroid cancer risk.

Materials And Methods: We conducted a population register-based longitudinal cohort study in Shanghai, including 428 568 persons with new-onset T2DM matched with the general population. The risk of thyroid cancer among subgroups was calculated based on standardized incidence ratio (SIR), hazard ratio (HR) and Cox proportional hazards models.

Financial Toxicity in Cancer Supportive Care: An International Survey.

Purpose: The study aims to explore unmet social needs and sources of financial toxicities in patients as noted by health care professionals and researchers in cancer supportive care, shedding light on potential health disparities.

Methods: In this cross-sectional survey, we anonymously surveyed active members of the Multinational Association of Supportive Care in Cancer (MASCC). The survey, structured in three sections, included questions regarding the routine assessment of social needs during patient consultations, sociodemographic aspects, factors influencing financial toxicity (FT), perceived support for managing FT, and available/desirable resources.

Physician and Artificial Intelligence Chatbot Responses to Cancer Questions From Social Media.

Importance: Artificial intelligence (AI) chatbots pose the opportunity to draft template responses to patient questions. However, the ability of chatbots to generate responses based on domain-specific knowledge of cancer remains to be tested.

Objective: To evaluate the competency of AI chatbots (GPT-3.

Primary cytoreductive surgery compared with neoadjuvant chemotherapy in patients with mutated advanced high grade serous ovarian cancer: 10 year survival analysis.

Objectives: Given the high response to platinum based chemotherapy in 1/2 mutated high grade serous ovarian cancers, there is uncertainty about the relative benefits of primary cytoreductive surgery versus neoadjuvant chemotherapy in this population. We aimed to compare the survival outcomes for women with 1/2 mutated high grade serous ovarian cancers undergoing either primary cytoreductive surgery or neoadjuvant chemotherapy.

Methods: We conducted a retrospective cohort study of all stage III/IV mutated high grade serous ovarian cancers treated with primary cytoreductive surgery or neoadjuvant chemotherapy at a single tertiary cancer center between 1991 and 2020.

Perceived Barriers Toward Patient-Reported Outcome Implementation in Cancer Care: An International Scoping Survey.

Purpose: Implementation of patient-reported outcomes (PROs) collection is an important priority in cancer care. We examined perceived barriers toward implementing PRO collection between centers with and without PRO infrastructure and administrators and nonadministrators.

Patients And Methods: We performed a multinational survey of oncology practitioners on their perceived barriers to PRO implementations.

Equity, diversity, and inclusion in the Multinational Association for Supportive Care in Cancer: a global membership survey.

Equity, diversity, and inclusion (EDI) are essential for healthcare organizations since they allow for the development of programs and initiatives that bring together diverse perspectives and knowledge. Global multidisciplinary organizations, such as the Multinational Association for Supportive Care in Cancer (MASCC), need to understand the perspective of their members regarding EDI to identify opportunities to enhance diversity and inclusiveness and to better meet the needs of members from different backgrounds and resources. The MASCC Health Disparities Committee designed a survey to identify issues related to disparities faced by MASCC members when providing supportive care to patients with cancer and to examine the EDI landscape within the organization.

Genomic Characterization and Clinical Outcomes of Patients with Peritoneal Metastases from the AACR GENIE Biopharma Collaborative Colorectal Cancer Registry.

Unlabelled: Peritoneal metastases (PM) are common in metastatic colorectal cancer (mCRC). We aimed to characterize patients with mCRC and PM from a clinical and molecular perspective using the American Association of Cancer Research Genomics Evidence Neoplasia Information Exchange (GENIE) Biopharma Collaborative (BPC) registry. Patients' tumor samples underwent targeted next-generation sequencing.

Virtual Cancer Care Beyond the COVID-19 Pandemic: Patient and Staff Perspectives and Recommendations.

Purpose: COVID-19 catalyzed rapid implementation of virtual cancer care (VC); however, work is needed to inform long-term adoption. We evaluated patient and staff experiences with VC at a large urban, tertiary cancer center to inform recommendations for postpandemic sustainment.

Methods: All physicians who had provided VC during the pandemic and all patients who had a valid e-mail address on file and at least one visit to the Princess Margaret Cancer Centre in Toronto, Canada, in the preceding year were invited to complete a survey.

Late Cardiac Toxic Effects Associated With Treatment Protocols for Hodgkin Lymphoma in Children.

Importance: Contemporary North American trials for children with Hodgkin lymphoma (HL) have decreased radiation therapy (RT) use and increased pharmacologic cardioprotection but also increased the cumulative doxorubicin dose, making overall treatment consequences for late cardiac toxic effects uncertain.

Objective: To estimate the risk of cardiac toxic effects associated with treatments used in modern pediatric HL clinical trials.

Design, Setting, And Participants: For this cohort study, Fine and Gray models were fitted using survivors in the Childhood Cancer Survivor Study who were diagnosed with HL between January 1, 1970, and December 31, 1999, and were followed for a median of 23.