Publications by authors named "Lachlan McDowell"

Importance: The eighth edition tumor, node, metastasis (TNM) staging for head and neck cutaneous squamous cell carcinoma (HNcSCC) is a poor predictor of survival in patients with lymph node metastases, possibly due to the inclusion of extranodal extension (ENE).

Objective: To identify the key determinants of prognosis in patients with nodal metastatic HNcSCC and analyze the association of ENE with TNM stage and investigate for prognostic heterogeneity in ENE-positive disease.

Design, Setting, And Participants: This retrospective, multicenter cohort study was conducted at 4 Australian tertiary referral centers using prospectively collected data in patients treated between 1980 and 2017 with a median (IQR) follow-up of 3.

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Introduction: The aims of this study were to investigate the rate and time to return to work (RTW) after transoral robotic surgery (TORS) for oropharyngeal squamous cell carcinoma (OPSCC) and to explore the impact of disease or work-related factors leading to variations in RTW outcomes.

Methods: Cross-sectional survey of disease, socioeconomic, work-related and health-related quality of life (HR-QOL). Qualitative analysis of responses for facilitators and barriers to RTW.

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Background: We aimed to identify predictors of distant metastatic recurrence (DMR) in patients with head and neck cutaneous squamous cell carcinoma (HNcSCC) with nodal metastases treated with curative intent.

Methods: Predictors of DMR were identified using Cox regression in a multicenter study of 1151 patients.

Results: The 5-year risk of DMR was 9.

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Sexuality and sexual intimacy are important aspects of cancer survivorship. In head and neck cancer (HNC), concerns around sexual health, sexuality and sexual intimacy are infrequently raised or addressed in standard HNC consultations, either before embarking on treatment or during survivorship. The changing demographic of HNC patients, largely due to the increasing proportion of patients with human papillomavirus-associated oropharyngeal squamous cell carcinoma (HPVOPSCC), has driven renewed interest in some specific survivorship issues, including sexual behaviours and lifestyles, which may account for both the primary mode of HPV transmission and the younger and less comorbid population affected by this disease.

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Article Synopsis
  • Robust definitions of time-to-event endpoints are essential for evaluating treatment effects and the clinical value of interventions in trials.
  • The Head and Neck Cancer International Group reviewed 92 phase 3 trials from 2008 to 2021 focused on curative treatments for mucosal head and neck squamous cell carcinoma.
  • The study found significant variability in how core endpoint components, like overall survival and progression-free survival, were reported, emphasizing the need for standardization and collaboration among stakeholders for clearer endpoint reporting.
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Transparent and precise endpoint definitions are a crucial aspect of clinical trial conduct and reporting, and are used to communicate the benefit of an intervention. Previous studies have identified inconsistencies in endpoint definitions across oncological clinical trials. Here, the Head and Neck Cancer International Group assessed endpoint definitions from phase 3 trials or trials considered practice-changing for patients with recurrent or metastatic mucosal head and neck squamous cell carcinoma, published between 2008 and 2021.

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Extranodal extension of tumour on histopathology is known to be a negative prognostic factor in head and neck cancer. Compelling evidence suggests that extranodal extension detected on radiological imaging is also a negative prognostic factor. Furthermore, if imaging detected extranodal extension could be identified reliably before the start of treatment, it could be used to guide treatment selection, as patients might be better managed with non-surgical approaches to avoid the toxicity and cost of trimodality therapy (surgery, chemotherapy, and radiotherapy together).

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Article Synopsis
  • Detection of extranodal extension (ENE) in head and neck squamous cell carcinoma indicates a poor prognosis, but there's currently a lack of standardized diagnostic criteria and reporting methods in the literature.
  • The Head and Neck Cancer International Group organized a modified Delphi process involving 19 pathology experts to establish consensus recommendations for diagnosing and reporting ENE.
  • The resulting guidelines, supported by 19 organizations from 34 countries, aim to standardize the diagnosis and improve accuracy in data collection regarding histology detected extranodal extension.
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The MD Anderson Dysphagia Inventory (MDADI), a measure of swallowing-related quality of life, has become the preferred patient-reported outcome measure (PROM) in contemporary clinical trials evaluating the experience of human papillomavirus-associated oropharyngeal squamous cell carcinoma (HPVOPSCC) survivors. With many potentially practice-changing studies using the MDADI composite score as either a primary or coprimary endpoint, or as a key secondary endpoint, it is important to understand its psychometric properties as judged by contemporary PROM standards, with a particular focus on its application to contemporary HPVOPSCC populations. In this critical review, we evaluate contemporary HPVOPSCC studies reporting MDADI outcomes, followed by a detailed evaluation of the psychometric properties of the MDADI.

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Article Synopsis
  • * Existing cardiovascular disease risk prediction tools are ineffective in predicting IS in HNC patients who have undergone RT, and duplex ultrasound is the preferred method for assessing CAS, though screening for asymptomatic patients is debated.
  • * Current HNC survivorship guidelines lack strong recommendations for screening related to RT as a risk factor for CAS and IS, indicating a need for enhanced awareness among clinicians and future research to improve risk prediction and preventative strategies.
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The Head and Neck Cancer International Group (HNCIG) has undertaken an international modified Delphi process to reach consensus on the essential data variables to be included in a minimum database for HNC research. Endorsed by 19 research organisations representing 34 countries, these recommendations provide the framework to facilitate and harmonise data collection and sharing for HNC research. These variables have also been incorporated into a ready to use downloadable HNCIG minimum database, available from the HNCIG website.

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Introduction: There is no consensus as to what specifically constitutes head and neck cancer radiotherapy quality assurance (HNC RT QA). The aims of this study are to (1) describe the RT QA processes used in the TROG 12.01 study, (2) review the RT QA processes undertaken for all patients with loco-regional failure (LRF), and (3) provide prospective data to propose a consensus statement regarding the minimal components and optimal timing of HNC RT QA.

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Combinatorial therapies consisting of radiation therapy (RT) with systemic therapies, particularly chemotherapy and targeted therapies, have moved the needle to augment disease control across nearly all disease sites for locally advanced disease. Evaluating these important combinations to incorporate more potent therapies with RT will aid our understanding of toxicity and efficacy for patients. This article discusses multiple disease sites and includes a compilation of contributions from expert Red Journal editors from each disease site.

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Purpose: The primary objectives were to describe the longitudinal course of sexual health in people undergoing curative (chemo)radiation therapy ([C)RT) for human papillomavirus-associated oropharyngeal squamous cell carcinoma (HPVOPSCC) and identify factors associated with higher sexual satisfaction 12 months after (C)RT.

Methods And Materials: Eligible participants from 3 sites were recruited to a prospective observational study between October 2020 and November 2021. Measures of sexual health (22-item European Organization for Research and Treatment of Cancer Sexual Health Questionnaire), treatment outcome priorities (Chicago Priorities Scale), quality of life (30-item European Organization for Research and Treatment of Cancer Core Quality of Life Questionnaire), symptom burden (MD Anderson Symptom Inventory-Head and Neck), emotional distress (Patient-Reported Outcomes Measurement Information System - Anxiety and Depression), and facial appearance and appearance distress (FACE-Q) were administered before, at the end, and 3 and 12 months after (C)RT.

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Extranodal extension (ENE) is a pattern of cancer growth from within the lymph node (LN) outward into perinodal tissues, critically defined by disruption and penetration of the tumor through the entire thickness of the LN capsule. The presence of ENE is often associated with an aggressive cancer phenotype in various malignancies including head and neck squamous cell carcinoma (HNSCC). In HNSCC, ENE is associated with increased risk of distant metastasis and lower rates of locoregional control.

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Article Synopsis
  • Cutaneous squamous cell carcinomas (cSCCs) are the second most common skin cancer globally, and this study aims to understand the biological reasons behind their varying clinical outcomes.
  • Researchers analyzed the profiles of 211 cSCC tumors, noting significant differences in immune system involvement between tumors from immunocompromised and immunocompetent patients.
  • Key findings suggest that the presence of memory B cells is linked to better patient outcomes, indicating that differences in immune response, rather than genetic factors, may drive the varying survival rates in cSCC.
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  • This study looked at a new tool called FCR-1r to help check how scared cancer survivors are about their cancer coming back.
  • They tested how well FCR-1r worked compared to other anxiety measures and found it was good at spotting those fears.
  • The researchers think FCR-1r could be really helpful in helping doctors support cancer survivors, but they need to test it more in everyday care.
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Purpose: This secondary analysis of clinical trial TROG 12.01, involving patients with human papillomavirus-associated oropharyngeal squamous cell carcinoma, aimed to identify patient-reported outcome (PRO) trajectories before, during, and after chemoradiotherapy.

Methods And Materials: Head and neck cancer symptom severity (HNSS) and interference (HNSI), generic health-related quality of life (HRQL), and emotional distress were assessed with the MD Anderson Symptom Inventory-Head and Neck, Functional Assessment of Cancer Therapy-General, and Hospital Anxiety and Depression Scale questionnaires, respectively.

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Purpose: Cancer survivors face higher rates of unemployment compared with individuals without a history of cancer. Compared to other cancer types, head and neck cancer (HNC) survivors face unique disease and treatment-specific issues that may limit return to work (RTW). This review aimed to determine employment outcomes of HNC survivors post-treatment and identify factors associated with RTW.

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