Feasibility and outcomes of fibreoptic endoscopic evaluation of swallowing following prophylactic swallowing rehabilitation in head and neck cancer

Safety-related outcomes for patients with a tracheostomy and the use of flexible endoscopic evaluation of swallowing (FEES) for assessment and management of swallowing: A systematic review

PURPOSE

The purpose of this systematic review was to examine safety-related outcomes for patients with tracheostomy after flexible endoscopic evaluation of swallowing (FEES) to assess and manage their swallow, when compared to other non-instrumental swallow assessments such as clinical swallowing examination (CSE) and/or a modified Evans blue dye test (MEBDT).

METHOD

Three databases were searched for articles referring to safety-related outcome data for adults with a tracheostomy, who underwent FEES and CSE and/or MEBDT. Articles were screened using predefined inclusion/exclusion criteria.

RESULT

The search strategy identified 2097 articles; following abstract and full-text screening, seven were included for review. The summary of evidence found low to very low certainty that FEES was associated with improved outcomes across swallow safety, physiological outcomes, tracheostomy cannulation duration, functional outcomes, and detection of upper airway pathologies.

CONCLUSION

This systematic review demonstrated low to very low certainty evidence from seven heterogeneous studies with low sample sizes that incorporating FEES may be associated with improved safety-related outcomes. There is less evidence supporting the accuracy of other swallow assessments conducted at the point of care (i.e. CSE and MEBDT). Future research requires studies with larger sample sizes and routine reporting of safety-related outcomes with use of FEES.

Evaluating the effects of lymphoedema management strategies on functional status and health-related quality of life following treatment for head and neck cancer: a systematic review

PURPOSE

Patients living with head and neck lymphoedema (HNL) after completion of head and neck cancer (HNC) often can experience long-term functional challenges and overall poorer health-related quality of life (HRQOL). This systematic review aims to explore components of effective HNL interventions through identification and synthesising literature on existing HNL management interventions.

METHODS

Five electronic databases (MEDLINE via Ovid and PubMed, CINAHL, CENTRAL, and Scopus) were systematically searched using Medical Subject Headings and free text, as well as citation tracking and Google Scholar for grey literature.

RESULTS

A total of 1910 studies were screened, with 12 studies meeting the inclusion criteria. Findings indicated vast heterogeneity within HNL interventions. Patients' adherence to intervention strategies was reported as low and partially adhered to, particularly at home. This impacted on function domains and overall HRQOL during the post-treatment HNC phase, as well as further increasing the demands placed on healthcare professionals.

CONCLUSIONS

Synthesis of the research findings highlighted a need to provide and educate patients with individualised HNL self-management intervention strategies. Promoting adherence was reported as being essential, with self-efficacy and behaviour change techniques being emphasised as a critical element to enhance motivation and therefore effective intervention delivery. Further work is important to address barriers to adherence and promote both motivation and behaviour change, to develop individualised self-management interventions for this cancer population.

IMPLICATIONS FOR CANCER SURVIVORS

The findings from this systematic review will provide guidance in the development and delivery of individualised self-management HNL interventions for patients who have completed HNC treatment.

Development and reliability of the revised Patterson Edema Scale

OBJECTIVE

The Patterson Edema scale was developed in 2007 to address the lack of a reliable, sensitive scale to measure laryngeal and pharyngeal oedema in patients with head and neck cancer. The objective of this study was to revise the existing Patterson scale to improve its reliability and utility.

DESIGN

Prospective investigation.

SETTING

Academic medical center.

PARTICIPANTS

Speech-Language Pathologists, Otolaryngologists, and Radiation Oncologists.

MAIN OUTCOME MEASURES

Ratings using the Revised Patterson Edema Scale.

METHODS

A consensus group reviewed existing literature regarding the performance of the original Patterson scale and revised the existing scale in regard to items to be included and descriptors for each severity level. The scale was then utilised by 18 speech language pathologists from the US and UK with >2 years-experience working with dysphagia and dysphonia with endoscopy. Each SLP rated a total of eight parameters (epiglottis, vallecula, pharyngoepiglottic folds, aryepiglottic folds, arytenoids, false vocal folds, true vocal folds and pyriform sinuses) using the Revised Patterson Edema Scale. Feedback was solicited from raters regarding areas where clarity was lacking for further scale revision. Scale revisions were completed and additional ratings were completed by otolaryngologists, radiation oncologists and less experienced SLP providers to establish reliability across disciplines. Quadratic weighted Kappa values were obtained to establish interrater reliability.

RESULTS

Feedback received from raters included suggestions for clarification of how to rate unilateral oedema, use of a standard task battery to visualise and rate structures consistently, and clarification of true vocal fold oedema rating parameters. Overall interrater reliability was established using quadratic weighted Kappa with good agreement noted for the epiglottis, vallecula, arytenoids and false vocal folds; moderate agreement noted for aryepiglottic folds, pharyngoepiglottic folds and pyriform sinuses; and fair agreement noted for true vocal folds.

CONCLUSIONS

The Revised Patterson Edema Scale demonstrates moderate-substantial interrater reliability for most parameters across multiple disciplines and experience levels, with the exception of the true vocal folds where agreement was fair. We believe the Revised Patterson Oedema Scale provides a reliable tool for clinicians and researchers to rate oedema in the supraglottic larynx and pharynx following treatment for head and neck cancer.

Development of an Ultrasonic Doppler Sensor-Based Swallowing Monitoring and Assessment System

Existing swallowing evaluation methods using X-ray or endoscopy are qualitative. The present study develops a swallowing monitoring and assessment system (SMAS) that is nonintrusive and quantitative. The SMAS comprises an ultrasonic Doppler sensor array, a microphone, and an inertial measurement unit to measure ultrasound signals originating only from swallowing activities. Ultrasound measurements were collected for combinations of two viscosity conditions (water and yogurt) and two volume conditions (3 mL and 9 mL) from 24 healthy participants (14 males and 10 females; age = 30.5 ± 7.6 years) with no history of swallowing disorders and were quantified for 1st peak amplitude, 2nd peak amplitude, peak-to-peak (PP) time interval, duration, energy, and proportion of two or more peaks. The peak amplitudes and energy significantly decreased by viscosity and the PP time interval and duration increased by volume. The correlation between the time measures were higher (r = 0.78) than that of the amplitude measures (r = 0.30), and the energy highly correlated with the 1st peak amplitude (r = 0.86). The proportion of two or more peaks varied from 76.8% to 87.9% by viscosity and volume. Further research is needed to examine the concurrent validity and generalizability of the ultrasonic Doppler sensor-based SMAS.