Comparing the Performance Status Scale and MD Anderson Dysphagia Inventory as swallowing outcome measures in head and neck cancer: a prospective cohort study

Global assessment of swallow function (GASF) following VMAT radiotherapy for head and neck squamous cell carcinoma

Aim

This study aimed to conduct a global assessment of swallow function (GASF) using a range of swallow outcome tools, in a cohort of patients pre- and post-treatment with image-guided volumetric modulated arc therapy (VMAT) radiotherapy.

Materials and methods

All patients receiving radical (chemo)radiation for SCC of the larynx, oro-, hypo- or nasopharynx between October 2016 - 2021 were eligible for inclusion.Patients were treated with VMAT radiotherapy according to institutional and national protocols.Patients underwent GASF pre- and 6 months post-treatment. Data were collated from the MD Anderson Dysphagia Inventory (MDADI), the Functional Oral Intake Scale (FOIS), the Performance Status Scale-Head and Neck: Normalcy of Diet scale (PSS-NoD), the 100 ml water swallow test (WST) for capacity and maximal interincisal opening (MIO).

Results

One hundred and seventy-five patients were included. 55.2 % of patients experienced a fall in MDADI-Composite score greater than the published meaningful clinical important difference (MCID).A trend for a decrease in FOIS score reflects a decrease in range of diet textures and increase in reliance on enteral feeding at 6 months post-treatment.Mean PSS-NoD score decreased reflecting increased restriction in diet textures.20 patients' WST capacity improved by the minimal clinically important difference of > 4mls whilst 37 % of patients experienced a decrease in WST capacity of 4mls or more. 12.6 % of patients developed trismus following radiotherapy.

Conclusions

This paper adds new detail to the understanding of the decline in measured eating, drinking and swallowing function that patients treated with VMAT radiotherapyexperience at 6 months post treatment. However, gaps are highlighted in the evidence base in terms of interpretation of swallow outcomes tool scores; future research in HNC should include ongoing discussion and development around robust outcomes tools and data collection.

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.

Dysphagia and its impact on the quality of life of head and neck cancer patients: institution-based cross-sectional study

Objective

Impaired swallowing is a primary medical concern in head and neck cancer (HNC) patients. Swallowing therapy and supportive care to relieve swallowing problems among HNC patients are recommended. However, no data shows the effect of dysphagia on the quality of life (QoL) among Ethiopian patients. This cross-sectional study aimed to assess swallowing function and its impact on QoL.

Results

The sample included 102 HNC patients who visited oncology clinics at Tikur Anbessa Specialized Hospital. Majority were male (53.90%), employed (70.6%), single (57.80%), and completed some level of formal education (66.60%) with a mean age of 42.58 years (SD ± 14.08). More than half of the patients (69.6%) medical expenses were covered by the government. Most were suffering from advanced stage HNC (59.80%), squamous cell carcinoma (62.70%), and the most prevalent tumor location was nasopharynx (40.20%). The mean MDADI score was 53.29 (SD ± 15.85). Being female, low income, suffering from laryngeal cancer, advanced tumor, and undergoing a single modality therapy were crucial determinants of poor QoL related to swallowing problems. It is recommended to assess swallowing related QoL of patients using a validated tool and be included in treatment protocols.

A longitudinal study of the Swedish MD Anderson Dysphagia Inventory in patients with oral cancer

OBJECTIVE

The aim of this study was to investigate whether the Swedish MD. Anderson Dysphagia Inventory (MDADI) is able to detect changes in dysphagia symptoms over time for patients with head and neck cancer (HNC).

METHODS

One hundred and forty-two patients with resectable tumors of the oral cavity were included prior to treatment. The patients filled out the MDADI, European Organization for Research and Treatment of Cancer Quality of Life questionnaire Core 30 (EORTC QLQ-C30) and the HNC module (H&N35) at baseline and at least one follow-up at 6 and/or 12 months after oncologic treatment. A control group without dysphagia (n = 115) was included.

RESULTS

Self-perceived swallowing function decreased in all domains at 6 months, and improved between 6 and 12 months. The changes were similar to the changes of the EORTC domains, indicating a sensitivity to change. However, even if improvements were seen at 12 months, the values were still inferior compared to baseline values, and the values of a control group without dysphagia. Convergent validity was found with values of the MDADI and EORTC domains producing similar results, and moderate correlations as hypothesized. Patients with moderate-severe dysphagia according to the MDADI (<60 points) demonstrated inferior values of the EORTC domains compared to patients with scores above 60 points.

CONCLUSION

The Swedish MDADI was found to be sensitive to change, and showed convergent results when compared to other established instruments. The threshold value for the MDADI (<60 points) indicating moderate-severe dysphagia may be a valuable addition in the clinical use.

LEVEL OF EVIDENCE

1.

Routine Use of Swallowing Outcome Measures Following Head and Neck Cancer in a Multidisciplinary Clinic Setting

Introduction  Chemoradiotherapy treatment for head and neck cancer (HNC) can have a major impact on swallowing function and health-related quality of life.

The use of outcome measures in early detection of patients with swallowing problems provides the opportunity for targeting speech and language therapy (SLT) interventions to aid adaption and promote better clinical outcomes.

Objective  The purpose of the present study was to assess relationships between four outcomes measures over time, in a cohort of HNC patients, treated by (chemo-)radiotherapy.

Methods  Data were collected at 3 months and 12 months, on 49 consecutive patients with primary squamous cell cancer of the oropharynx, nasopharynx or hypopharynx stage T1–4, N0–2b, M0 disease.

Results  Out of 49 eligible patients, 45 completed assessment at 3 months and 20 at 12 months. The 3-month outcomes gave a strong indication of performance at 1 year. There were several strong correlations found between measures. The strongest was between the 3-month Performance Status Scale for Head and Neck Cancer (PSSHN) and the 12-month PSSHN (rs = 0.761, n  = 17), the 12-month PSSHN and the 12-month Functional Oral Intake Scale (FOIS) (rs = 0.823, n  = 20), and the 12-month University of Washington Head and Neck Quality of Life (UWQoL) swallow and the 12-month Water Swallow Test (WST) capacity (rs = 0.759, n  = 17).

Conclusion  The UW-QoL swallow item and WST are easy to incorporate into routine care and should be used as part of a standard assessment of swallow outcome. These measures can serve to help screen patients for dysfunction and focus allocation of resources for those who would benefit from more comprehensive assessment and intervention by SLT.

Gastrostomy Utilization by Oropharyngeal Cancer Patients Is Partially Driven by Swallowing Function

OBJECTIVE

Oropharyngeal squamous cell carcinoma (OPSCC) incidence is rapidly increasing, as are survival rates, in large part due to the human papillomavirus (HPV). Treatment intensity, however, has remained unchanged, making treatment-related toxicity (i.e., dysphagia) a critical problem for an increasing number of patients. The primary objective of this study was to determine whether pretreatment objective swallowing measures can predict percutaneous fluoroscopic guided gastrostomy tube (PFG) utilization during OPSCC treatment.

METHODS

Forty-one newly diagnosed OPSCC patients treated with radiation underwent evaluation of swallow function with modified barium swallow study (MBSS) prior to and at completion of radiation treatment using the Dynamic Imaging Grade of Swallowing Toxicity (DIGEST); a subset of patients were evaluated using the MD Anderson Dysphagia Inventory (MDADI).

RESULTS

Patients were male (100%), primarily Caucasian (85.4%) and p16 positive (85.4%) with mean age of 65.7 years. PFG were placed in 70.7% patients (n = 29) and used by 63.4% (n = 26). Pre- and post-treatment DIGEST scores were associated with T-classification (t = -2.9, p = .001, t = -2.7, p = .01) and indicated deteriorating swallow function during treatment (mean change = 0.46 [t = -2.7, p = .01]). DIGEST and MDADI scores were generally not associated with patient PFG utilization. DIGEST and MDADI scores were significantly correlated prior to, but not following completion of treatment.

CONCLUSION

Pre-treatment DIGEST and patient reported swallowing outcomes (MDADI) can be useful in identifying patients with unsafe and/or grossly inefficient swallowing function. However, objectively measured swallow function was not associated with PFG utilization. Development of PFG placement algorithms (reactive vs. prophylactic) therefore require additional inputs/metrics.

LEVEL OF EVIDENCE

4 Laryngoscope, 130:2153-2159, 2020.

Long-term Functional and Quality-of-Life Outcomes After Transoral Robotic Surgery in Patients With Oropharyngeal Cancer

Importance

In recent years, transoral robotic surgery (TORS) has emerged as a useful treatment for oropharyngeal squamous cell carcinoma (OPSCC). In appropriately selected patients, the use of TORS may allow avoidance of adjuvant chemotherapy and/or radiotherapy, thereby avoiding the long-term adverse effects of these therapies.

Objective

To compare functional speech, swallowing, and quality-of-life outcomes longitudinally between those undergoing TORS only and those undergoing TORS and adjuvant radiotherapy (TORS+RT) or TORS and chemoradiotherapy (TORS+CRT).

Design, Setting, and Participants

This prospective, longitudinal cohort study performed from June 1, 2013, through November 31, 2015, included 74 patients undergoing TORS for initial treatment of OPSCC at a single tertiary academic hospital.

Main Outcomes and Measures

Data were collected at baseline, postoperatively (7-21 days), at short-term follow-up (6-12 months), and at long-term follow-up (>12 months). The quality-of-life metrics included the 10-item Eating Assessment Tool and the University of Michigan Head and Neck Quality of Life instrument. Data were also collected on tumor staging, surgical and adjuvant therapy details, patient comorbidities, tracheostomy and feeding tube use, and functional speech and swallowing status using the Performance Status Scale for Head and Neck Cancer Patients.

Results

Seventy-four patients were enrolled in the study (mean [SD] age, 61.39 [7.99] years; 68 [92%] male). Median long-term follow-up was 21 months (range, 12-36 months). The response rates were 86% (n = 64) postoperatively, 88% (n = 65) at short-term follow-up, and 86% (n = 64) at long-term follow-up. In all 3 groups, there was a significant worsening in pain and all swallowing-related measures postoperatively. There was subsequent improvement over time, with different trajectories observed across the 3 intervention groups. Postoperative dysphagia improved significantly more quickly in the TORS-only group. At long-term follow-up, weight loss differed between the TORS-only and TORS+RT groups (mean difference, -16.1; 97.5% CI, -29.8 to -2.4) and the TORS-only and TORS+CRT groups (mean difference, -14.6; 97.5% CI, -29.2 to 0) in a clinically meaningful way. In addition, the TORS-only group had significantly better scores than the TORS+CRT group on the Performance Status Scale-Eating in Public scale (mean difference, 21.8; 97.5% CI, 4.3-39.2) and Head and Neck Quality of Life-Eating scale (mean difference, 21.2; 97.5% CI, 4.0-38.3).

Conclusions and Relevance

Patients who underwent TORS+CRT demonstrated poorer long-term outcomes, with continued dysphagia more than 1 year after surgery. These findings support the investigation of adjuvant de-escalation therapies to reduce the long-term adverse effects of treatment.