Nonmelanoma cutaneous head and neck cancer and merkel cell carcinoma: Current concepts, advances, and controversies

Nonmelanoma skin cancer (NMSC) is the most common cancer worldwide and the most frequently observed malignancy in whites. Approximately 75% to 80% are basal cell carcinomas and 20% to 25% are squamous cell carcinomas. Incidence is increasing, partly reflecting an ageing population, and NMSC is more commonly seen in men. The predominant causative agent is ultraviolet solar radiation exposure, with the majority of cases occurring on the head and neck. Surgical excision is typically the treatment of choice, providing histopathologic information, high cure rates, and acceptable cosmetic and functional outcomes. Radiation therapy is reserved for cases where surgery is not the preferred choice or for high-risk cases where adjuvant therapy is recommended. Although overall mortality rates are low, patients with complex cases such as those with immunosuppression should be considered for management within multidisciplinary tumor boards. In contrast, Merkel cell carcinoma is a rare and aggressive malignancy, frequently arising on the head and neck in older whites, with a poorer prognosis. This article focuses on the current evidence guiding practice, recent advances, and areas of controversy in NMSC and Merkel cell carcinoma of the head and neck. (C) 2015 by American Society of Clinical Oncolog

Computer Literacy and Health Locus of Control as Determinants for Readiness and Acceptability of Telepractice in a Head and Neck Cancer Population

Understanding end-user populations is required in designing telepractice applications. This study explored computer literacy and health locus of control in head/neck cancer (HNC) patients to inform suitability for telerehabilitation. Sixty individuals with oropharygneal cancer were recruited. Computer literacy was examined using a 10-question survey. The Multidimensional Health Locus of Control Scale Form C (MHLC-C) examined perceptions of health “control”.  Participants were mostly middle-aged males, from high socioeconomic backgrounds. Only 10% were non-computer users. Of the computers users, 91% reported daily use, 66% used multiple devices and over 75% rated themselves as “confident” users. More than half were open to using technology for health-related activities. High internal scores (MHLC-C) signified a belief that own behaviour influenced health status.  HNC patients have high computer literacy and an internal health locus of control, both are positive factors to support telepractice models of care. This may include asynchronous models requiring heightened capacity for self-management

Survivors' experiences of dysphagia-related services following head and neck cancer: implications for clinical practice

Backgroun

Carers' experiences of dysphagia in people treated for head and neck cancer: a qualitative study

The implication of dysphagia for people treated nonsurgically for head and neck cancer (HNC) and its detrimental effects on functioning and quality of life has been well documented. To date, however, there has been a paucity of research on the effects of dysphagia following HNC on carers, independent of the consequences of a gastrostomy. The objective of this qualitative study was to report on the experiences of carers of people with dysphagia (non-gastrostomy dependent) following nonsurgical treatment for HNC and to identify the support needs of this group. A purposive, maximum-variation sampling technique was adopted to recruit 12 carers of people treated curatively for HNC since 2007. Each participated in an in-depth interview, detailing their experience of caring for someone with dysphagia and the associated impact on their life. Thematic analysis was adopted to search the transcripts for key phases and themes that emerged from the discussions. Analysis of the transcripts revealed four themes: (1) dysphagia disrupts daily life, (2) carers make adjustments to adapt to their partner's dysphagia, (3) the disconnect between carers' expectations and the reality of dysphagia, and (4) experiences of dysphagia-related services and informal supports. Carers generally felt ill-prepared for their role in dysphagia management. The qualitative methodology successfully described the impact of dysphagia on the everyday lives of carers, particularly in regard to meal preparation, social events, and family lifestyle. Clinicians should provide adequate and timely training and support to carers and view carers as copartners in dysphagia management

Prospective Study of Cetuximab, Carboplatin, and Radiation Therapy for Patients With Locally Advanced Head and Neck Squamous Cell Cancer Unfit for Cisplatin

Purpose: To report on the outcomes of a novel treatment regimen for patients with locally advanced head and neck squamous cell carcinoma who were fit for curative treatment but not fit for cisplatin

Outcomes following surgery and post-operative radiotherapy for perineural spread of head and neck cutaneous squamous cell carcinoma

Background Queensland, Australia, has the highest rates of cutaneous squamous cell carcinoma (SCC). Perineural invasion (PNI) is associated with reduced local control and survival. Methods A retrospective review of a prospective database of patients with clinical PNI from cutaneous SCC of the head and neck (SCCHN) treated with surgery and postoperative radiotherapy (PORT) between 2000 and 2011 and a minimum of 24 months follow-up. Patients were excluded if immunosuppressed, had non-SCC histology, or were treated palliatively. Results Fifty patients (mean age, 60 years) with median follow-up of 50 months were included in this study. A total of 54.8% of known primary tumors had incidental PNI. Ten percent had nodal disease at presentation. MRI neurogram was positive in 95.8%. Recurrence-free survival (RFS) at 5-years was 62%. Five-year disease-specific survival (DSS) and overall survival (OS) were 75% and 64%, respectively. There were no perioperative deaths. Conclusion This report demonstrates that long-term survival is achievable in patients with clinical PNI from cutaneous SCCHN after surgery and PORT

Communication changes following non-glottic head and neck cancer management: The perspectives of survivors and carers

Purpose. Head and neck cancer (HNC) survivors may experience functional changes to their voice, speech and hearing following curative chemoradiotherapy. However, few studies have explored the impact of living with such changes from the perspective of the HNC survivor and their carer. The current study employed a person-centred approach to explore the lived experience of communication changes following chemoradiotherapy treatment for HNC from the perspective of survivors and carers. Method. Participants included 14 survivors with non-glottic HNC and nine carers. All participants took part in in-depth interviews where they were encouraged to describe their experiences of living with and adjusting to communication changes following treatment. Interviews were analysed as a single data set. Result. Four themes emerged including: (1) impairments in communication sub-systems; (2) the challenges of communicating in everyday life; (3) broad ranging effects of communication changes; and (4) adaptations as a result of communication changes. Conclusion. These data confirm that communication changes following chemoradiotherapy have potentially negative psychosocial impacts on both the HNC survivor and their carer. Clinicians should consider the impact of communication changes on the life of the HNC survivor and their carer and provide adequate and timely education and management to address the needs of this population

The lived experience of dysphagia following non-surgical treatment for head and neck cancer

The prevalence and severity of dysphagia in people treated non-surgically for primary head and neck cancer (HNC) is well documented. However, few studies have looked beyond the physiological impairment to explore the lived experience of dysphagia in the post-treatment period of HNC. The current study adopted a person-centred, qualitative approach to describe the experiences of people living with dysphagia in the months and years following non-surgical treatment for HNC. Using maximum variation sampling, 24 participants who had undergone radiotherapy treatment for HNC were recruited. Individual interviews were conducted to explore the impact of dysphagia on participants' everyday lives. The themes identified included: (1) physical changes related to swallowing; (2) emotions evoked by living with dysphagia; (3) altered perceptions and changes in appreciation of food; and (4) personal and lifestyle impacts. The data revealed the breadth and significance of the impact of dysphagia on the lives of people treated curatively for HNC. Assessment and management in the post-treatment period must be sufficiently holistic to address both the changing physical states and the psychosocial needs of people with dysphagia following HNC. Rehabilitation services which focus only on impairment-based management will fail to fully meet the support needs of this clinical population

An ex vivo human tumour assay reveals distinct patterns of EGFR trafficking in squamous cell carcinoma correlating to therapeutic outcomes

EGFR overexpression is associated with squamous cell carcinoma development. Altered endocytosis and polarization of receptor tyrosine kinases, including EGFR, affect migration and invasion in 3D culture. These studies have been completed via genetic sequencing, cell line or 3D in vitro and in vivo murine models. Here we describe an imaging method that allows ex-vivo examination of ligand-induced endocytosis of EGFR in non-dissociated human tumours. We analyzed sets of tumour samples from advanced cutaneous squamous cell carcinoma and Head and Neck squamous cell carcinoma, actinic keratosis, intra-epidermal carcinoma and cutaneous squamous cell carcinoma. We demonstrate that EGFR endocytosis is dysregulated in advanced SCC and correlates with anti-EGFR monoclonal antibody therapy outcomes. In actinic keratosis, intra-epidermal carcinoma and well-differentiated cutaneous squamous cell carcinoma different patterns of epidermal growth factor ligand uptake and binding were observed at the leading edge of different dysplastic lesions, suggesting that these differences in EGFR endocytosis might influence the metastatic potential of dysplastic squamous epithelium. These studies in live ex-vivo human tumours confirm that endocytosis dysregulation is a physiological event in human tumours and has therapeutic implications