Patient-reported outcome measures for dysphagia in head and neck cancer: A systematic review and appraisal of content validity and internal structure

Dysphagia is a major head and neck cancer (HNC) issue. Dysphagia-related patient-reported outcome measures (PROMs) are critical for patient-centred assessment and intervention tailoring. This systematic review aimed to derive a comprehensive inventory of HNC dysphagia PROMs and appraise their content validity and internal structure. Six electronic databases were searched to February 2023 for studies detailing PROM content validity or internal structure. Eligible PROMs were those developed or validated for HNC, with ≥20% of items related to swallowing. Two independent raters screened citations and full-text articles. Critical appraisal followed COSMIN guidelines. Overall, 114 studies were included, yielding 39 PROMs (17 dysphagia-specific and 22 generic). Of included studies, 33 addressed PROM content validity and 78 internal structure. Of all PROMs, only the SOAL met COSMIN standards for both sufficient content validity and internal structure. Notably, the development of 18 PROMs predated the publication of COSMIN standards. In conclusion, this review identified 39 PROMs addressing dysphagia in HNC, of which only one met COSMIN quality criteria. Given that half of PROMs were developed prior to COSMIN guidelines, future application of current standards is needed to establish their psychometric quality.

A core outcome set for patient-reported dysphagia for use in head and neck cancer clinical trials: An international multistakeholder Delphi study

BACKGROUND

Measuring dysphagia-related patient-reported outcomes (PROs) in Head and Neck Cancer (HNC) patients is challenging due to dysphagia's multidimensional impact, causing inconsistency in outcome reporting. To address this issue, this study derived a consensus-based core outcome set (COS) for patient-reported dysphagia in HNC clinical trials where swallowing is a primary or secondary endpoint.

METHODS

A sample of HNC clinicians, researchers, patients, and caregivers participated in a 2-Round Delphi technique. A Delphi survey, containing a comprehensive list of dysphagia-related PROs, was developed. In Round 1, participants rated item importance on a 5-point scale. Items rated ≥4 by >70% advanced to Round 2, where a consensus meeting addressed items with varied opinions, and the Delphi survey with remaining items was completed. Items rated ≥4 by >70% formed the final COS.

RESULTS

Forty-five participants from nine countries were recruited. After Round 1, 40 items were excluded and 64 advanced to Round 2. After Round 2, a 7-outcome COS was established, comprising the domains of dysphagia symptoms, health status and quality of life.

CONCLUSION

This study achieved consensus among HNC stakeholders on essential dysphagia PROs for HNC clinical trials. It is advisable to include these 7-core concepts in clinical trials involving people with HNC to facilitate treatment comparisons and data synthesis.

Assessment of patients with head and neck cancer using the MD Anderson Dysphagia Inventory: Results of a study into its comprehensiveness, comprehensibility and relevance to clinical practice

BACKGROUND

The MD Anderson Dysphagia Inventory (MDADI) is a widely used patient-reported outcome measure (PROM) which assesses dysphagia-related quality of life (QoL) in head and neck cancer (HNC). Despite its common use in HNC research and clinical practice, few of its psychometric properties have been reappraised since its inception. The aim of this study was to perform a survey-based qualitative analysis of UK HNC clinicians' perceptions of the content validity of the MDADI, evaluating it across the parameters of relevance, comprehensiveness and comprehensibility as per the COSMIN guideline for PROM assessment.

RESULTS

Four themes relating to the content validity of the MDADI were identified: (1) MDADI items lack clarity of definition of the terms 'swallowing', 'eating' and 'dysphagia'; (2) the MDADI is perceived to be overly negative in tone including items that service users may find distressing or disempowering; (3) items in the tool are exclusory to specific subgroups of patients, such as those who are nil by mouth or socially isolated; and (4) modifications to the MDADI were suggested and encouraged to make it more clinically useful and patient-centred.

CONCLUSIONS

This study indicates that MDADI's content validity is 'insufficient' when rated by COSMIN parameters. This has significant implications for its continued use in HNC research and clinical practice. Further re-evaluation of the content validity of the MDADI is warranted, with potential future amendment of items being indicated if the results of this study are corroborated in subsequent research.

WHAT THIS PAPER ADDS

What is already known on the subject The MD Anderson Dysphagia Inventory (MDADI) patient-reported outcome measure of dysphagia-related quality of life is widely used in clinical practice and international clinical trials. Content validity is considered to be the most important property of a tool when assessing its psychometric strengths and weaknesses; however, the MDADI's content validity has not been reappraised since its initial development. What this paper adds to existing knowledge This study presents UK speech and language therapists' opinions and experience of the content validity of the MDADI and this first reappraisal of its content validity since its initial development highlights several issues with this psychometric parameter of the tool. This study highlights that further re-evaluation of the content validity of the MDADI is warranted, with potential future amendment of items being indicated if the results of this study are corroborated in subsequent research. What are the potential or actual clinical implications of this work? Clinicians cannot assume that commonly used outcomes tools have strong psychometric profiles. Consideration of the content validity of outcomes tools during selection for use in clinical and research practice should be key, as this will encourage use of tools that produce relevant, valid data that can contribute meaningfully to patient-centred care.

Psychosocial Adjustment Experiences Among Nasopharyngeal Carcinoma Survivors: A Qualitative Study

BACKGROUND

Nasopharyngeal carcinoma (NPC) has serious effects on the daily lives and psychosocial adjustment of survivors. In particular, psychosocial problems are a prominent concern.

OBJECTIVE

The aim of this study was to understand the lived experiences of NPC survivors regarding psychosocial adjustment.

METHODS

A qualitative design using individual semistructured interviews was conducted with 20 NPC survivors. Each participant was asked open-ended questions about their lived experience with psychosocial adjustment. The data were then subjected to thematic analysis.

RESULTS

The following 4 themes, which had subthemes, were identified from the data: (1) grappling with discomforts (symptoms distress of late toxicities, impaired body image, and returning-to-work restrictions), (2) struggling with uncertainty (disease attribution with self-blame, contradictory rehabilitation information, fear of cancer recurrence, and distance from medical staff), (3) changing social patterns (special favors, social isolation, and social discrimination), and (4) cultivating positive change (healthy lifestyle and positive mindset).

CONCLUSIONS

Nasopharyngeal carcinoma survivors experience many obstacles, as well as positive changes, during psychosocial adjustment. This study highlights the pressing need to consider NPC survivors' concerns about their psychosocial adjustment.

IMPLICATIONS FOR PRACTICE

Medical staff should provide NPC survivors with sufficient rehabilitation information to help them deal with possible late toxicities and mitigate their uncertainty and misunderstanding. Effective public education measures are needed to address misunderstandings about cancer in Chinese cultural settings.

Experiences and perceptions of social eating for patients living with and beyond head and neck cancer: a qualitative study

Purpose

Patients with head and neck cancer (HNC) describe eating as more than a physical activity for nutrition and calories. After treatment for HNC, patients report a changed social experience around food, with eating and drinking in front of family and friends depicted as a challenge. However, there is limited research exploring how patients with HNC adapt and cope with social eating difficulties. This study aims to explore patients’ experiences and perceptions of social eating and drinking following treatment for HNC.

Methods

A qualitative research design using semi-structured interviews was employed to understand the experiences of social eating of patients living with and beyond HNC. Reflexive thematic analysis was used to inductively develop key themes from the data.

Results

Fourteen interviews were conducted with patients, and two key themes were identified: (1) “Social eating became a conscious process” and (2) “Strategies to maximise social eating participation”. To maximise social eating enjoyment, patients attempted to minimise the attention on their eating function and the fuss created around food. Patients with HNC established psychological and cognitive adaptations to manage expectations and promote positive participation in social eating.

Conclusion

This paper identifies key barriers limiting or diminishing social eating for patients with HNC; including being self-conscious, lack of understanding from others and functional issues with eating and drinking. This research highlights the need to raise awareness of social eating challenges and for the social dimensions of eating to be addressed through family-centred, supportive holistic interventions implemented early in the patient’s cancer journey.

Head and Neck Cancer in a Rural U.S. Population: Quality of Life, Coping, Health Care Literacy, and Access to Services

Purpose The aim of this study was to explore the beliefs, access, and motivations of individuals with head and neck cancer (HNC) living in a rural community in the United States, regarding their speech and swallowing deficits. Method A convenience sample of nine patient participants with HNC and nine caregiver participants completed in-depth, semistructured interviews regarding their experiences with HNC diagnosis and treatment. The researchers utilized a thematic networks approach to analyze the qualitative data obtained. Results Primary results of the study were a set of common themes emerging from 735 units for analysis, arranged into 34 basic themes, nine organizing themes, and four global themes. The resulting networks centered around quality of life impact, coping, health literacy, and access. Direct quotes from the participants are utilized to illustrate response categories. Conclusions Individuals with HNC and their caregivers living in rural communities in the United States appear to represent a unique subset of the HNC population. While they present similarly in most areas, they display unique tendencies in the areas of psychological coping, health literacy, and access. Provision of practical, pertinent information that can be accessed by patients and caregivers alike outside the hospital is suggested to better serve this community.

The Relationships Between Radiation Dosage and Long-term Swallowing Kinematics and Timing in Nasopharyngeal Carcinoma Survivors

This study aimed to investigate the relationship between intensity-modulated radiation therapy (IMRT) dosimetry and swallowing kinematic and timing measures. Thirteen kinematic and timing measures of swallowing from videofluoroscopic analysis were used as outcome measures to reflect swallowing function. IMRT dosimetry was accessed for thirteen swallowing-related structures. A cohort of 44 nasopharyngeal carcinoma (NPC) survivors at least 3 years post-IMRT were recruited. The cohort had a mean age of 53.2 ± 11.9 years, 77.3% of whom were male. There was an average of 68.24 ± 14.15 months since end of IMRT; 41 (93.2%) had undergone concurrent chemotherapy. For displacement measures, female sex and higher doses to the cricopharyngeus, glottic larynx, and base of tongue were associated with reduced hyolaryngeal excursion and pharyngeal constriction, and more residue. For timing measures, higher dose to the genioglossus was associated with reduced processing time at all stages of the swallow. The inferior pharyngeal constrictor emerged with a distinctly different pattern of association with mean radiation dosage compared to other structures. Greater changes to swallowing kinematics and timing were observed for pudding thick consistency than thin liquid. Increasing radiation dosage to swallowing-related structures is associated with reduced swallowing kinematics. However, not all structures are affected the same way, therefore organ sparing during treatment planning for IMRT needs to consider function rather than focusing on select muscles. Dose-response relationships should be investigated with a comprehensive set of swallowing structures to capture the holistic process of swallowing.

A qualitative systematic review of the social eating and drinking experiences of patients following treatment for head and neck cancer

PURPOSE

Patients living with and beyond head and neck cancer (HNC) often have long-term, functional challenges as a result of treatment. A key functional challenge relates to eating and drinking; often associated with physical, emotional, and social difficulties. Eating and drinking with family members and friends can become a struggle, increasing the risk of social isolation and loneliness. This systematic review aims to identify and synthesise the literature on the experiences of social eating and drinking for patients following treatment for HNC.

METHODS

Six electronic databases (Pubmed, Web of Science, CINAHL, EMBASE, PsychINFO, and Scopus) were systematically searched using subject headings and free-text word searches in February 2020. Citation chaining and Google Scholar were used to identify grey literature. PRISMA procedures were followed.

RESULTS

Of 6910 records identified, 24 studies met the inclusion criteria. Synthesis of the research findings results in two major themes: (1) the experience of loss associated with social eating and drinking, and (2) adjusting and support to promote social eating and drinking.

CONCLUSION

Losses associated with social eating affect a patient's psychological and emotional well-being and impact on close relationships. To promote positive participation in social eating, patients were more likely to seek and receive support from someone within their close social network, rather than a healthcare professional. Family and friends are an essential source of support and are integral in facilitating engagement with social eating following treatment for HNC. Future interventions should promote family orientated resources, incorporating self-management strategies.

What Are We Really Measuring? A Content Comparison of Swallowing Outcome Measures for Head and Neck Cancer Based on the International Classification of Functioning, Disability and Health (ICF)

A combination of outcome measures are required to provide important information on the physiological profile and associated impact of dysphagia in head and neck cancer (HNC). Choosing the most appropriate tool can be a difficult and time-consuming process. The aim of this study was to identify and then compare the content of tools commonly used to assess swallowing post HNC care using the International Classification of Functioning Disability and Health (ICF) as a reference. A literature audit of 11 databases was conducted for relevant articles published between January 2004 and June 2017 and total of 502 papers met the inclusionary criteria. These papers were audited and 27 tools were identified which met the study criteria. The meaningful concepts contained in each tool were mapped to the ICF. Within the 27 tools, 898 meaningful concepts were identified and matched to 60 ICF categories. The most frequently matched ICF categories related to body functions, while comparatively few concepts matched to activity and participation and environmental factors. This study has identified that a large number of tools are currently being used in HNC research to measure swallowing outcomes. The sheer number of tools available to explore dysphagia post HNC highlights the lack of a uniform approach to outcome measurement which limits the potential to compare and combine research studies in order to strengthen treatment evidence. There is a need to develop an international consensus for a core outcome set of swallowing related measures, that capture the holistic impact of dysphagia, for HNC.