Publications

Swallowing impairment, or dysphagia, is highly prevalent in older people living in long-term care, as are oral health concerns such as missing teeth and periodontitis. Texture-modified diets are frequently prescribed for long-term care residents to manage concerning oral health conditions and dysphagia, but their use is associated with increased risk of malnutrition, dehydration, and reduced quality of life. This survey study was conducted to explore the knowledge and perspectives of long-term care staff pertaining to swallowing disorders, oral health, texture-modified diet use, and barriers and facilitators to identifying and advocating for swallowing and/or oral health assessments for long-term care residents. The survey was developed with input from an advisory panel and refined through two rounds of Delphi-method polling. The survey was administered to staff working in long-term care facilities in roles that involved face-to-face contact with residents in the provinces of Ontario, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador. Complete responses were obtained from 148 participants who primarily reported working as nursing assistants, health care aides, or personal support workers in Nova Scotia and New Brunswick. The results suggest that frontline long-term care staff may have limited knowledge of swallowing disorders, and overreliance on texture-modified diets is likely. Instrumental swallowing evaluations and professional oral health assessments appear to be rarely accessed. Speech-language pathologist involvement on longterm care interprofessional teams could be beneficial for educating staff, providing comprehensive management of swallowing impairments, and curbing the overuse of texture-modified diets in longterm care.

Abstract

Importance: Oropharyngeal dysphagia is common in hospitalized patients with Alzheimer disease and related dementias (ADRD). Although the use of thick liquids in patients with dysphagia has been shown to reduce aspiration on direct visualization, there is no clear evidence that this practice translates into improved clinical outcomes.

Objectives: To determine whether a diet of thick liquids compared with thin liquids is associated with improved outcomes in hospitalized patients with ADRD and dysphagia.

Design, setting, and participants: This cohort study included adults aged 65 years and older with ADRD who were admitted to the medicine service across 11 diverse hospitals in New York between January 1, 2017, and September 20, 2022, with clinical suspicion of dysphagia during hospitalization and survival for at least 24 hours after hospital arrival. Patients were grouped according to whether at least 75% of their hospital diet consisted of a thick liquid diet or a thin liquid diet. Propensity score matching was used to balance covariates across the 2 groups for the following covariates: demographics (eg, age, sex), baseline clinical characteristics (eg, Charlson Comorbidity Index), and acute presentation (eg, respiratory diagnosis, illness severity, delirium).

Main outcomes and measures: Hospital outcomes included mortality (primary outcome), respiratory complications (eg, pneumonia), intubation, and hospital length of stay (LOS).

Results: Of 8916 patients with ADRD and dysphagia included in the propensity score matched analysis, the mean (SD) age was 85.7 (8.0) years and 4829 were female (54.2%). A total of 4458 patients receiving a thick liquid diet were matched with 4458 patients receiving a thin liquid diet. There was no significant difference in hospital mortality between the thick liquids and thin liquids groups (hazard ratio, 0.92; 95% CI, 0.75-1.14]; P = .46). Compared with patients receiving thin liquids, patients receiving thick liquids were less likely to be intubated (odds ratio [OR], 0.66; 95% CI, 0.54-0.80), but they were more likely to have respiratory complications (OR, 1.73; 95% CI, 1.56-1.91).

Conclusions and relevance: This cohort study emphasizes the need for prospective studies that evaluate whether thick liquids are associated with improved clinical outcomes in hospitalized patients with ADRD and dysphagia.

Purpose

The purpose of this study was to assess the self-perceived knowledge and self-efficacy of certified nursing assistants (CNAs) when using external memory aids to enhance the communication and independence of residents with dementia living in skilled nursing facilities (SNFs).

Method

One hundred forty-four CNAs completed a measure pertaining to self-perceived knowledge and self-efficacy of external memory aids.

Results

CNAs had favorable beliefs about the usefulness of external memory aids to help both conversation and independence in activities of daily living for residents with dementia (M = 4.0, SD = 0.84; M = 3.92, SD = 0.85) on a 5-point Likert scale, with 5 = strongly agree and 1 = strongly disagree. There were no statistically significant differences between CNAs who reported being trained to use external memory aids with residents with dementia and CNAs who reported they were not trained according to items related to self-efficacy (U = 2203.5, z = −1.483, p = .138; U = 2179, z = −1.547, p = .122; U = 2115, z = −1.82, p = .069; U = 2320, z = −0.942, p = .346).

Conclusions

Results of this study indicated that the lack of uptake of external memory aids for residents with dementia in SNFs may not solely be due to lack of buy-in or lack of time on the part of the CNA. Speech-language pathologists should provide this training to support the uptake of external memory aids for residents with dementia; however, these data suggest that current training methods may not be considerate of the nuances of implementation. Speech-language pathologists and researchers should consider the finer aspects of theoretically grounded facilitation techniques as next steps to the broader implementation of this intervention for residents with dementia living in SNFs.

There is a paucity of evidence from population-based studies identifying prevalence and incidence of dysphagia, as well as health and sociodemographic risk factors that may contribute to its development. As such, the current study aimed to determine prevalence, incidence, and associated predictors of dysphagia in adults. The Canadian Longitudinal Study on Aging is a nationally representative population study that follows 51,338 Canadians over 45 years of age. Biological, medical, psychological, social, lifestyle and economic data are collected. A secondary analysis of the data was conducted to determine prevalence, incidence, and the predictors of self-reported swallowing difficulty in adults between 45 and 85 years of age. Rates of swallowing difficulty by demographic risk factor, as well as lifestyle and health factors were analyzed using descriptive statistics. Associations between lifestyle and health variables with dysphagia were tested using Chi-square tests or t tests, as appropriate. Logistic regression was used to determine the predictors of self-reported swallowing difficulties. Overall prevalence of self-reported swallowing difficulties in adults over the age of 45 was 10.6% and increased to 13.7% after 3 years. Significant differences (p < 0.001) in self-reported swallowing difficulty at baseline were apparent across smoking status, requiring help to prepare meals, life satisfaction, social participation, all disease categories except dementia, number of medications, cognition, oral health status, and frailty. Incidence of dysphagia was 8.6%. Regression analyses suggested the following independent predictors of reports of swallowing difficulty: older age; non-white ethnicity; female sex; poor oral health; malnutrition; and frailty. These predictors should be carefully considered to ensure we are screening at-risk populations. Social determinants of health, such as ethnicity, must also be considered to ensure equitable care across the population.

Purpose

The purpose of this study was to determine whether transnasal passage of a flexible endoscope results in changes in salivary flow rate (SFR), spontaneous swallow frequency (SSF), and masticatory efficiency (ME) in healthy adults.

Methods

Data were collected from 15 healthy adults, 20–63 years of age. SFR and SSF were measured at baseline, after endoscope insertion, and after endoscope removal. The Test of Masticating and Swallowing Solids was administered at baseline and while the endoscope was in the hypopharynx. A repeated measures ANOVA was used to determine the effect of endoscope insertion on SFR and SSF. A paired samples t-test was used to determine the effect of endoscope insertion on total mastication time and number of masticatory cycles required with a cracker bolus. Statistical significance was set at α = 0.05.

Results

SFR was found to be significantly increased during endoscope placement in the hypopharynx (M = 0.471 g/min, SD = 0.175, p = 0.002) as well as following endoscope removal (M = 0.481 g/min, SD = 0.231, p = 0.004), as compared to baseline (M = 0.310 g/min, SD = 0.130). Total mastication time and number of masticatory cycles required with a cracker bolus were significantly decreased when the endoscope was present in the hypopharynx, as compared to baseline t(14) = 3.054, p = 0.009; t(14) = 3.250, p = 0.006, respectively.

Conclusions

Visualization of swallowing during FEES is an important method for objectively evaluating several anatomical and functional parameters of the pharynx and larynx. Insertion of the endoscope into the hypopharynx during FEES may stimulate salivary secretion and improve ME, which could influence interpretation of FEES and resulting clinical recommendations.