Overall survival and treatment modalities in pancreatic adenocarcinoma: a retrospective analysis of a single centre in Western Australia.

Background: Pancreatic ductal adenocarcinoma (PDAC) has a 5-year survival rate of approximately 10.7% in Australia. It is becoming an increasingly common cause of cancer mortality. The therapeutic model for PDAC remains limited, especially for those with metastatic disease on presentation. Methods: We completed a retrospective cohort study including all patients with PDAC presenting between April 2008 and October 2021 to St. John of God Subiaco Hospital in Western Australia. Overall survival (OS) was calculated via Kaplan-Meier method. Results: We identified 251 patients treated for PDAC. Of these, 134 patients (53%) had resectable, borderline resectable or locally advanced (LA) disease at diagnosis and 117 patients (47%) had metastatic disease. The median age of all patients was 66 years (range, 25-87 years). OS in PDAC was 26 months [95% confidence interval (CI): 23-30]. In the non-metastatic group OS was 34 months (95% CI: 30-39). In the metastatic group OS was 19 months (95% CI: 14-22). Treatment modalities varied between patients. Overall 123 patients were treated with chemotherapy alone, 55 patients had chemoradiotherapy, 34 patients had chemotherapy and surgery and 37 had tri-modality treatment including chemotherapy, surgery and radiotherapy. Two patients received cyberknife radiation alone. Conclusions: This retrospective study shows a significant prolonged survival for PDAC patients. Further studies are needed to validate second- and third-line regimens in PDAC.

Return to valued activities: Survivors' experiences of adaptation and growth after treatment for head and neck cancer.

OBJECTIVE: The objective of this study was to explore the experiences of head and neck cancer (HNC) survivors who returned to valued activities to understand how they reconstruct their lives following HNC diagnosis and treatment. METHODS: A qualitative research approach based on social constructionist theory was used. A total of 21 in-depth semi-structured interviews were conducted with adults diagnosed with any type of HNC in the previous 6 years. Reflexive thematic analysis was used to identify themes. RESULTS: HNC presents a unique trauma following which some survivors navigate paths back to meaningful activities. The experiences of HNC survivors who adapted to life after treatment described internal and external change and development, identified by three themes; Mindfulness; Gratitude; and Adaptation. CONCLUSION: People diagnosed with HNC frequently experience lasting effects and other survivorship issues, however some survivors were able to return to valued activities and recreate a meaningful lifestyle reflecting the possibility of post traumatic growth. This study provides insight into the experiences of head and neck cancer survivors who were able to make meaning and find internal and external growth following treatment. These findings can be used to inform advanced communication skills training for oncology health professionals and psychoeducational courses for people diagnosed with head and neck cancer in the future.

Dosimetric impact of mechanical movements of the Linac gantry during treatments with small fields.

Objective: Current accepted linac Quality Assurance (QA) guidelines used for Volumetric Modulated Arc Therapy (VMAT) suggest a mechanical isocentre tolerance level of 1 mm. However, this tolerance level has not been well-established for the specific case of small field stereotactic VMAT. This study aims to evaluate the clinical impact of mechanical uncertainty on this treatment modality by modelling systematic gantry sag derived isocentre variance in the Treatment Planning System (TPS). Approach: A previously reported dataset of gantry sag values in the literature served as a starting point for this study. Using an in-house developed VMAT arc splitting algorithm, isocentre shifts were applied at a Control Point (CP) level to DICOM-RT treatment plans. Dose distributions for varying isocentre shift magnitudes were calculated for a set of 29 stereotactic VMAT plans using the Eclipse Acuros XB dose algorithm. These plans had a range of Planning Target Volume (PTV) sizes. A quantitative comparison of each plan was conducted by evaluating five Dose Volume Histogram (DVH)-derived plan quality metrics. Results: All metrics exhibited a deterioration in plan quality with increasing magnitudes of isocentre shift. At small PTV sizes, these effects were amplified, exhibiting significant changes at 1 mm of average shift when typical targets and tolerances were considered. For plans with PTVs between 0 and 5 cm3, a 1 mm shift reduced PTV coverage by 6.6 ± 2.2% and caused a 12.1 ± 3.8% deterioration in the conformity index. Based on the results of this study, the prevalent tolerance of 1 mm may not be suitable for treatments of small PTVs with small fields. Significance: In contrast to commonly accepted values, an absolute mechanical isocentre of 0.5 mm with action level at 0.75 mm is recommended for stereotactic VMAT of PTV sizes below 10 cm3.

Silenced: Patients' experiences of voicelessness in head and neck cancer.

OBJECTIVES: The objective of this qualitative study was to explore patients' experiences of communicating with health professionals following a diagnosis of head and neck cancer (HNC). METHODS: A qualitative research approach based on social constructionist theory was used. A total of 21 in-depth semi-structured interviews were conducted with people diagnosed with HNC. Thematic analysis was used to identify themes. RESULTS: The experience of losing the capacity for speech was experienced by survivors of HNC as distressing and traumatic. Voicelessness was not just a loss of physical speech, but a holistic experience of silencing. A number of tensions emerged including patients' experiences of losing their voice and then finding different ways to verbally express themselves; in interactions with health professionals there was a tension between abrupt, hurried communication and a slower, more mindful communication style. Sub-themes around communication style emerged where disparities between levels of health literacy were unaddressed, and patients' experienced a lack of empathy. Another tension experienced was between an old style medical model and the ideal of person-centred care and the biopsychosocial model of health. CONCLUSION: Whether HNC patients lose their voice temporarily, have periods of voicelessness, or are able to speak, but feel unheard, the treatment experience is too often one of disempowerment and silencing of their perspectives. PRACTICE IMPLICATIONS: Health professionals are challenged to find creative communication methods, to practice mindful listening, source speech pathology and adaptive technologies, and to facilitate communication that supports patients in expressing their values, preferences and needs.

"My life's not my own": A qualitative study into the expectations of head and neck cancer carers.

INTRODUCTION: Cancers that originate from the upper aerodigestive tract are collectively known as head and neck cancer. The most common are squamous cell carcinomas of the oropharynx, larynx, and oral cavity. Head and neck cancer patients experience significant physical and psychological changes because of the disease and treatment. There is a substantial strain on family carers who have extensive responsibilities over most aspects of the patient's life. The aim of the study was to understand the perspectives of being an HNC carer and their perceived expectations of the role. METHODS: The study adopted a qualitative research design with a social constructionist epistemology. Interviews were conducted with 20 carers who were currently caring for someone diagnosed with head and neck cancer. RESULTS: Three overarching themes were identified: taking responsibility for the patient's nutrition, navigating a new and different relationship, and "my life's not my own." Participants felt responsible for ensuring the patient was eating and became increasingly frustrated when the patient was unable to intake food. Carers prioritised the patients' needs at the expense of their own, and several came to resent the role. CONCLUSION: Carers' expectations of their role informed how they approached giving care. Carers need to be supported from diagnosis and encouraged to prioritise their own wellbeing.

Clinicopathological characteristics and clinical morbidity in high-risk head and neck cutaneous squamous cell carcinoma patients in Western Australia.

BACKGROUND: There is no registry data on morbidity and mortality of high-risk cutaneous squamous cell carcinoma (cSCC) in Australia. AIM: To examine the clinicopathological features, mortality and morbidity in high-risk cSCC patients in Western Australia (WA). METHODS: A retrospective cohort study was conducted through hospital record review on cSCC patients discussed at multidisciplinary meetings at the two largest WA hospitals between March 2015 and December 2016. RESULTS: Of 141 patients, 129 were evaluable, with median follow up of 43.9 (range 3.0-53.2) months. Patients were predominantly older males (84%) with significant comorbidities (Charlson Comorbidity Index (CCI) ≥5; 76%) and history of previous nonmelanoma skin cancer (57%) with advanced disease (57% stage IV without distant metastasis; American Joint Committee on Cancer, 7th edition). Pathological high-risk features were common including nodal extracapsular extension (47%) and cranial nerve involvement (16%). Clinical morbidity was significant with a median of 2 (range 0-13) excisions and 2 (range 0-21) cSCC-related hospitalisations for any cSCC event following the index case discussion. Recurrences of the primary index lesion occurred in 60% of patients and 20% had ≥2 recurrences. Median overall survival for patients with nonmetastatic disease was 39.8 (range 25.9-53.7) months and 16.1 (range 0.2-32.0) months for metastatic disease. CCI ≥5, advanced nodal stage and ≥2 recurrences were significantly associated with mortality on multivariable analyses (P < 0.05). Nodal extracapsular extension and any recurrences were identified as significant risk factors for disease-specific mortality on multivariable analyses (P < 0.05). CONCLUSION: High-risk cSCC patients have significant health needs represented by high-baseline comorbidities, multiplicity of cSCC events and the number of healthcare-associated interventions. There is an unmet need for robust cancer data collection.

'I Didn't Even Recognise Myself': Survivors' Experiences of Altered Appearance and Body Image Distress during and after Treatment for Head and Neck Cancer.

PURPOSE: Preparation for head and neck cancer treatment is focused on practicalities of treatment. Little or no time is spent prior to treatment discussing aesthetic results of treatment or the psychosocial impact of living with an altered appearance after treatment. The objective of this study was to explore the experiences of survivors of head and neck cancers, with a focus on the psychosocial impact of altered appearance. METHODS: A qualitative research approach based on social constructionist theory was used. Twenty-one semi-structured interviews were conducted with survivors of head and neck cancer who had been diagnosed in the previous six years. Thematic analysis was used to identify themes. RESULTS: People diagnosed with HNC reported feeling rushed into treatment, with adequate procedural preparation but little or no preparation related to appearance. The main themes included: Preparation (sub-themes: Decision-making; and Preparation for Altered Appearance); Altered Appearance (sub-themes: Weight Loss; Face, Skin and Hair Changes; and Reconstructive Surgery); and Consequences (sub-themes Reactions from Others; Adapting to Altered Appearance). CONCLUSIONS: Body image distress related to altered appearance, contributed to psychosocial issues for many people diagnosed with head and neck cancer. Current practice provides information pre-treatment about many aspects of coping; however, the subject of appearance is not routinely addressed. Communication skills training for health professionals that improves their comfort and sensitivity in discussing and conveying compassion around issues of altered appearance, body image, and trauma, is needed to decrease suffering for survivors, support healthy adaptation to living with altered appearance, and increase their satisfaction with health care.

Simultaneous intraocular and cutaneous extranodal NK/T-cell lymphoma refractory to multiple therapies including pembrolizumab.

Floaters or visual disturbance in a patient with ENKL should prompt evaluation for possible vitreoretinal involvement. Lymphoma with ocular involvement should be treated aggressively and in most cases heralds CNS involvement.

Burnout or Fade Away; experiences of health professionals caring for patients with head and neck cancer.

PURPOSE: The oncology workforce has been found to have high risk of burnout; however, limited research has explored the experiences of health professionals working with head and neck cancer patients. The objective of this qualitative study was to explore the experiences of health professionals who work directly with patients diagnosed with head and neck cancers, with a focus on work-life balance, mental health and wellbeing. METHOD: A total of 21 in-depth semi-structured interviews were conducted with health professionals including radiation oncologists, medical oncologists, nurses, and associated medical and allied health professionals. A qualitative research approach based on social constructionist theory was used. Thematic analysis was used to identify and code themes. RESULTS: Five main themes emerged: 1. Conscientiousness; 2. Empathy; 3. Challenges; 4. Coping; and 5. Burnout or Fade Away. Challenges included sub-themes of Time & Resource Constraints, Work-Life Imbalance, Patients with Complex Needs, and Lack of Self-Care. CONCLUSION: It is vital to the sustainability of head and neck oncology services that this highly skilled workforce is retained. The development of interventions that will reduce the risk of burnout and improve retention and capacity of health professionals may include advanced communication skills training, trauma sensitivity training, self-compassion and stress management skills.

From the carer's mouth: A phenomenological exploration of carer experiences with head and neck cancer patients.

OBJECTIVE: Receiving a diagnosis of head and neck cancer is devastating for patients and family carers and causes high levels of distress. Previous studies report that carer distress levels exceed that of patients, but go largely unnoticed by health professionals. To date, there is a paucity of studies that have described carers' perspectives of the lived experience of caring for a loved one diagnosed with head and neck cancer. The aim of this study was to explore the lived experiences of carers of patients diagnosed with head and neck cancer. METHODS: This qualitative study was informed by descriptive phenomenology. Carers of patients who had been diagnosed with head and neck cancer within the last 6 years were recruited from participating hospitals in Perth, Western Australia. Semi-structured interviews were conducted with 20 carers of patients diagnosed with head and neck cancer. Thematic analysis was conducted to gain an understanding of participants lived experiences. RESULTS: Key themes identified were: Silent Suffering, Gamut of Emotions, Causal Attribution, Changing Priorities, Gaining Support, and Coping. The changing priorities themes highlights that carers prioritised (a) being available for their loved one and (b) taking an active role in managing head and neck cancer symptoms and side effects. CONCLUSIONS: Carers of patients diagnosed with head and neck cancer experience distress. Instead of seeking support, carers often elected to suffer in silence. Implications for practice include screening for carer distress and providing specific interventions focused on caring for someone diagnosed with head and neck cancer.

Peripheral T-Cell Lymphoma Arising in Patients With Chronic Lymphocytic Leukemia.

OBJECTIVES: To describe three further cases of anaplastic large cell lymphoma (ALCL) occurring in patients with preexisting chronic lymphocytic leukemia (CLL). We also reviewed the literature of previously published cases. METHODS: We discuss the clinical features, histopathology, and outcomes for three patients with ALCL and CLL from Perth, Australia. The cases were also included in a literature review of existing cases and comparisons were made with our cohort. RESULTS: The three patients included two men (aged 77 and 74 years) and one woman (aged 66 years). All had a history of untreated CLL with diagnosis established 4 to 16 years before. They had lymphadenopathy and/or cutaneous/soft tissue lesions that proved to be ALCL, ALK+ (one case) or ALCL, ALK- (two cases). CONCLUSIONS: Further research is required in this area to establish prognostic and management recommendations. Increasing numbers of cases are being described. Positron emission tomography with computed tomography was not useful in our cohort for diagnosing progression.

Multi-observer contouring of male pelvic anatomy: Highly variable agreement across conventional and emerging structures of interest.

INTRODUCTION: This study quantified inter-observer contouring variations for multiple male pelvic structures, many of which are of emerging relevance for prostate cancer radiotherapy progression and toxicity response studies. METHODS: Five prostate cancer patient datasets (CT and T2-weighted MR) were distributed to 13 observers for contouring. CT structures contoured included the clinical target volume (CTV), seminal vesicles, rectum, colon, bowel bag, bladder and peri-rectal space (PRS). MR contours included CTV, trigone, membranous urethra, penile bulb, neurovascular bundle and multiple pelvic floor muscles. Contouring variations were assessed using the intraclass correlation coefficient (ICC), Dice similarity coefficient (DSC), and multiple additional metrics. RESULTS: Clinical target volume (CT and MR), bladder, rectum and PRS contours showed excellent inter-observer agreement (median ICC = 0.97; 0.99; 1.00; 0.95; 0.90, DSC = 0.83 ± 0.05; 0.88 ± 0.05; 0.93 ± 0.03; 0.81 ± 0.07; 0.80 ± 0.06, respectively). Seminal vesicle contours were more variable (ICC = 0.75, DSC = 0.73 ± 0.14), while colon and bowel bag contoured volumes were consistent (ICC = 0.97; 0.97), but displayed poor overlap (DSC = 0.58 ± 0.22; 0.67 ± 0.21). Smaller MR structures showed significant inter-observer variations, with poor overlap for trigone, membranous urethra, penile bulb, and left and right neurovascular bundles (DSC = 0.44 ± 0.22; 0.41 ± 0.21; 0.66 ± 0.21; 0.16 ± 0.17; 0.15 ± 0.15). Pelvic floor muscles recorded moderate to strong inter-observer agreement (ICC = 0.50-0.97), although large outlier variations were observed. CONCLUSIONS: Inter-observer contouring variation was significant for multiple pelvic structures contoured on MR.

Reduced dose to small bowel with the prone position and a belly board versus the supine position in neoadjuvant 3D conformal radiotherapy for rectal adenocarcinoma.

INTRODUCTION: No consensus exists regarding the optimal treatment setup for neoadjuvant radiotherapy of rectal cancer using a 3D conformal (3D CRT) technique. Positioning the patient prone with a belly board aims to reduce the amount of small bowel irradiated. METHODS: Twenty-five patients with locally advanced rectal cancer underwent computed tomography (CT) planning for neoadjuvant chemoradiotherapy. Patients were simulated prone with a belly board and then in the supine position. Questionnaires rating the comfort of each position were completed. 3D CRT plans were generated for both positions to a prescribed dose of 50.4 Gy in 1.8 Gy daily fractions. Dose-volume parameters in 5 Gy increments for small bowel, large bowel and bladder wall were compared. RESULTS: Small bowel V5 Gy, V10 Gy, V15 Gy and V20 Gy values were significantly higher in the supine position (398, 366, 245, 151 cm3 for supine vs. 243, 213, 161, 122 cm3 for prone respectively; P < 0.001, <0.001, <0.001 and 0.025). Large bowel V5 Gy, V10 Gy and V15 Gy values were significantly higher in the supine position (266, 209, 147 cm3 supine, 175, 139, 108 cm3 prone respectively; P = 0.001, <0.001, 0.003). There was a significant difference in comfort scores favouring the supine position (P = 0.015). CONCLUSION: A significant increase in small and large bowel dose was seen in the supine plans. Treatment in the prone position with a belly board may reduce toxicity when using a 3D CRT technique. Whilst both setup positions were tolerable the supine was more comfortable.

Local radiotherapy alone following neoadjuvant chemotherapy and surgery in combined clinical stage II and III breast cancer.

PURPOSE: The outcomes and recurrence patterns for patients with combined clinical stage II and III breast cancer treated with local but not regional radiotherapy after neoadjuvant chemotherapy (NAC) and surgery are poorly documented. METHODS: We performed a retrospective review of a prospectively collected database comprised of breast cancer patients who received NAC at our institution. 172 patients met the specified criteria of receiving NAC, surgery inclusive of axillary nodal dissection and post-operative local (but not regional) radiotherapy. RESULTS: One hundred eleven patients (64.5 %) were of combined clinical stage II and 61 (35.5 %) stage III at diagnosis. 103 patients (59.9 %) were clinically node positive with 101 cN1. On post-NAC pathology 29 (16.9 %) patients had a complete response, 30 (17.6 %) were combined yp stage I, 104 (60.5 %) yp stage II and 9 (5.2 %) yp stage III. 77 (44.8 %) were node positive on post-NAC pathology, all ypN1. 52.3 % were treated with breast conservation. At a median follow up of 67 months, 56 patients experienced breast cancer recurrence and 47 had died with breast cancer the dominant cause. Actuarial 5 and 10 year estimated freedom from locoregional recurrence (FFLRR), freedom from distant metastases (FFDM), disease free (DFS) and overall survival (OS) were 90 and 83.5, 74.5 and 64, 69.5 and 56, 79.5 and 65 % respectively. The most common pattern of failure was distant alone (without local or regional failure). Regional failure as the only site of first failure occurred in just three patients but was a component of first failure in a further twelve. Predictive factors on multivariate analysis for FFLRR were clinical stage II and estrogen receptor positivity. Prognostic factors were ypN0 stage and estrogen receptor positive status. CONCLUSIONS: Local radiotherapy alone may be reasonable for selected patients. Isolated distant recurrence is the dominant mode of failure for breast cancer patients who have received local radiotherapy without regional coverage following NAC.

Accuracy of magnetic resonance imaging in the pre-operative staging of rectal adenocarcinoma: Experience from a regional Australian cancer center.

AIM: Selection of the optimal treatment pathway in patients with rectal adenocarcinoma relies on accurate locoregional staging. This study aims to assess the accuracy of staging with magnetic resonance imaging (MRI) and in particular, its accuracy in differentiating patients with early stage disease from those with more advanced disease who benefit from a different treatment approach. METHODS: Patients who were staged with MRI and received surgery as the first line of treatment for biopsy-proven adenocarcinoma of the rectum were identified. Comparison was made between the clinical stage on MRI and the pathological stage of the surgical specimen. The sensitivity, specificity and overall accuracy of MRI was assessed. RESULTS: In all, 58 eligible patients were identified. In 31% of patients, the extent of disease was underrepresented on preoperative MRI. Sensitivity, specificity and overall accuracy of anorectal MRI in detecting stage II/III disease status in this cohort was 59, 71 and 62%, respectively. CONCLUSION: MRI underestimated the pathological stage in many patients in this series who may have benefited from the addition of neoadjuvant radiotherapy to their management. This study supports further refinement of preoperative staging and demonstrates that impressive results from highly controlled settings may be difficult to reproduce in community practice.

Complete resolution of urinary bladder condyloma acuminatum following definitive chemoradiotherapy for anal cancer.

UNLABELLED: What's known on the subject? and What does the study add? Condyloma acuminatum of the bladder is a rare affliction and as such its ideal management is unknown. This manuscript describes curative treatment of severe disease with external beam radiotherapy concurrent with low dose chemotherapy, an approach which has not previously been utilised. OBJECTIVES: • To report the first occurrence of complete and sustained resolution of symptomatic condyloma acuminatum of the bladder with chemoradiotherapy. • To describe the relevant patient details, imaging findings and chemoradiation treatment. PATIENT AND METHOD: • A 54-year-old female with extensive condyloma acuminatum of the bladder and a long history of human papilloma virus related anogenital disease was diagnosed with anal squamous cell carcinoma. • Cystectomy for the bladder disease was delayed whilst chemoradiotherapy was administered for the anal cancer. RESULTS: • There was complete resolution of bladder disease at follow-up which has negated the need for cystectomy with its associated morbidity. • Condyloma acuminatum has not recurred in 4 years of follow-up. CONCLUSION: • This is the first published report to our knowledge of the successful treatment of condyloma acuminatum of the bladder with chemoradiotherapy. • The individual contributions of radiotherapy vs chemotherapy cannot be discerned.