Publications by authors named "Cynthia Chan"

Purpose: Canada has experienced a ten-fold increase in referrals for gender-affirming care. Clinical guidelines emphasize the importance of a comprehensive and systematic approach to outcome measurement for gender-affirming hormonal care. However, research is lacking on the investigation of outcomes of Canadian gender-affirming hormonal treatments.

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Rationale And Objectives: Physicians report a lack of Transgender and Gender Diverse (TGD) health competency for medical imaging. This knowledge gap contributes to negative medical imaging experiences, discrimination, stigma, and diagnostic errors for TGD individuals. Medical education plays an important role in improving this.

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Squamoid eccrine ductal carcinoma (SEDC) is a cutaneous adnexal malignancy that is histologically challenging to distinguish from squamous cell carcinoma. We report three cases of this rare entity and review the present literature regarding clinical, histological, and immunohistochemical features. Patients presented with a single nodule or plaque lesion on their back and temple.

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Background And Purpose: Artificial intelligence models in radiology are frequently developed and validated using data sets from a single institution and are rarely tested on independent, external data sets, raising questions about their generalizability and applicability in clinical practice. The American Society of Functional Neuroradiology (ASFNR) organized a multicenter artificial intelligence competition to evaluate the proficiency of developed models in identifying various pathologies on NCCT, assessing age-based normality and estimating medical urgency.

Materials And Methods: In total, 1201 anonymized, full-head NCCT clinical scans from 5 institutions were pooled to form the data set.

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Background: Gender inequalities in academic medicine persist despite progress over the past decade. Evidence-based targeted interventions are needed to reduce gender inequalities.

Objective: This systematic review aimed to investigate the impact of COVID-19 on gender trends in authorship of paediatric radiology research worldwide.

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The objective of this study is to describe survival outcomes in patients with metastatic melanoma in a real-world setting receiving combination and single-agent immunotherapy outside the clinical trial context. We conducted a retrospective single-institution study of patients with metastatic melanoma in a real-world setting. Survival was calculated using log-rank test.

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Introduction: Ocular artifact has long been viewed as an impediment to the interpretation of electroencephalogram (EEG) signals in basic and applied research. Today, the use of blind source separation (BSS) methods, including independent component analysis (ICA) and second-order blind identification (SOBI), is considered an essential step in improving the quality of neural signals. Recently, we introduced a method consisting of SOBI and a discriminant and similarity (DANS)-based identification method, capable of identifying and extracting eye movement-related components.

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Background: Hairdressers have a high prevalence of contact dermatitis, especially to nickel. The presence of nickel in hairdressing tools has been evaluated in the European Union, where the government limits nickel release levels from objects.

Objectives: The aim of this study is to qualitatively investigate nickel release in hairdresser tools in both rural and urban United States, a country without nickel release legislation.

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Objectif: Résumer les données probantes actuelles et formuler des recommandations pour la surveillance prénatale du bien-être fœtal afin de détecter les facteurs de risque périnatal et toute potentielle décompensation fœtale et de permettre une intervention rapide en prévention de la morbidité et la mortalité périnatales.

Population Cible: Personnes enceintes avec ou sans facteurs maternels, fœtaux ou gravidiques associés à des risques périnataux et à la décompensation fœtale.

Options: Utiliser des examens prénataux par technologie de base et/ou avancée en fonction des facteurs de risque de décompensation fœtale.

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Article Synopsis
  • The objective of the document is to summarize evidence and provide recommendations for antenatal fetal health surveillance (FHS) to identify at-risk pregnancies and allow for timely interventions to reduce perinatal complications.
  • It targets pregnant individuals regardless of their risk status and suggests utilizing various antenatal testing methods based on those risks to spot potential fetal decompensation.
  • The outcomes aim for early detection to enhance fetal health or prompt delivery; however, while FHS can mitigate adverse situations, its high false-positive rates might lead to unnecessary interventions that could cause harm and increase healthcare costs.
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Article Synopsis
  • Previous research indicates that the transversus abdominis (TrA) activation is lower in individuals with chronic low back pain (cLBP) compared to healthy individuals, especially in less functional positions.
  • This pilot study compared TrA activation in healthy vs. cLBP subjects during different upright movements: double leg standing (DLS), single leg standing (SLS), and a quarter squat on one leg (QSLS).
  • The results showed no significant differences in TrA activation between the two groups during the tested movements, suggesting that evaluating TrA activation in these upright functions may not be beneficial for managing cLBP.
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Background: Since December 2019, the world has struggled with the COVID-19 pandemic. Even after the introduction of various vaccines, this disease still takes a considerable toll. In order to improve the optimal allocation of resources and communication of prognosis, healthcare providers and patients need an accurate understanding of factors (such as obesity) that are associated with a higher risk of adverse outcomes from the COVID-19 infection.

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Article Synopsis
  • Gender-affirming care can significantly benefit from using patient-reported outcome measures (PROMs), necessitating the identification of implementation barriers and facilitators to create effective strategies.
  • A systematic review was conducted, analyzing 286 studies involving over 85,000 transgender and nonbinary patients, which highlighted the diverse use of 205 PROMs but found a lack of implementation science frameworks.
  • Key barriers included concerns about evidence quality, participant engagement, and complexity of the PROMs, while enablers featured the use of validated, concise, and user-friendly PROMs, as well as stakeholder engagement and supportive organizational environments.
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Objective: This guideline aims to provide evidence for prevention, recognition, and treatment of postpartum hemorrhage including severe hemorrhage leading to hemorrhagic shock.

Target Population: All pregnant patients.

Benefits, Harms, And Costs: Appropriate recognition and treatment of postpartum hemorrhage can prevent serious morbidity while reducing costs to the health care system by minimizing more costly interventions and length of hospital stays.

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Childhood cancer therapy carries a high risk of treatment-related toxicities and complications that can impact kidney function. Although many of these adverse effects in the acute setting are well described, less is known about the latent effects of childhood cancer treatments on long-term kidney health. With decades of advancements in treatment protocols for many pediatric malignancies, more children than ever before are surviving into adulthood after being cured of their disease and with lower long-term morbidity.

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Objectif: Fournir aux chirurgiens et autres fournisseurs de soins canadiens qui réalisent des interventions chirurgicales ou thérapeutiques esthétiques génitales féminines, et tout praticien demandeur, des directives fondées sur des données probantes en réponse à l'augmentation des demandes et de la disponibilité des interventions chirurgicales et thérapeutiques vaginales et vulvaires sortant du cadre traditionnel de la reconstruction avec indication médicale.

Population Cible: Les femmes de tous âges qui consultent pour subir une intervention chirurgicale ou thérapeutique esthétique génitale. BéNéFICES, RISQUES ET COûTS: Les professionnels de la santé qui prodiguent des soins aux femmes jouent un rôle important en renseignant les femmes sur leur anatomie et en les aidant à prendre conscience des variations individuelles.

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Objective: To provide Canadian surgeons and other providers who offer female genital cosmetic surgery (FGCS) and procedures, and their referring practitioners, with evidence-based direction in response to increasing requests for, and availability of, vaginal and vulvar surgeries and procedures that fall outside the traditional realm of medically indicated reconstructions.

Target Population: Women of all ages seeking FGCS or procedures.

Benefits, Harms, And Costs: Health care providers play an important role in educating women about their anatomy and helping them appreciate individual variations.

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Background: Onychomycosis affects 43 million people in the United States and Europe. Topical therapies can be effective but require lengthy and costly regimens without an established method for predicting the treatment outcome.

Objective: We studied the role of optical coherence tomography (OCT), a noninvasive imaging device approved by the United States Food and Drug Administration, in evaluating onychomycosis treatment outcomes.

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Article Synopsis
  • Gene amplification is when certain genes in cancer cells get copied a lot, which helps the cancer grow.
  • Researchers found a new way to fight this by using a special tool that causes DNA damage in these cancer cells, making them self-destruct.
  • This method has shown results similar to other cancer treatments and could help with cases where the usual drugs aren't working anymore.
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