Ultrasound: Reliability of a Pocket-Sized System in the Assessment of Swallowing

Purpose Ultrasound imaging offers a noninvasive adjunct to clinical swallowing assessment. Published reliability of sophisticated ultrasound systems is promising; however, no data exist for reliability using more affordable, pocket-sized devices. This study explored intrarater, interrater, and test–retest reliability of swallowing measures acquired with pocket-sized ultrasound technology. Method Five participants collected measures of swallowing from 20 healthy individuals using the Clarius ultrasound. Hyoid excursion and thyrohyoid approximation were derived during saliva, liquid, and puree swallowing. The cross-sectional area of the floor of mouth muscles and tongue thickness were obtained at rest. Measures were collected at two occasions minimum 11 days apart. Reliability was assessed for the entire process of data acquisition including scanning and online measurement, and for offline measurement of saved images. Results For most measures, reliability was poor (ICC [intraclass correlation coefficient] < .50) to moderate (ICC = .50–.75) for the entire process of data acquisition and poor to good (ICC > .75) when measuring saved images. Conclusion Further work is needed to elucidate whether our study findings apply to the Clarius system only or the data suggest a general limitation of pocket-sized ultrasound technology.

Treating Velopharyngeal Insufficiency in a Case of Substance Abuse: A New Client Population

Objective A case study is presented to illustrate the management of a patient who presented with significant tissue damage of the soft palate due to substance abuse, which involved the inhalation of drugs. Method The patient was seen in a university medical center cleft palate clinic upon referral from a mental health facility with reported speech and swallowing problems. Perceptual and physiologic speech testing, a behavioral swallowing assessment, and other interdisciplinary assessments were conducted to confirm the patient's complaints and develop a treatment plan. Results A speech appliance was fabricated to correct the defect and follow-up testing showed improvement in both speech and swallowing skills. Perceptual assessment indicated improved resonance balance and reduction in audible nasal emission, while physiologic testing revealed decreased nasal airflow. The team successfully implemented a plan to correct the patient's speech, resonance, and swallowing problems. Conclusions Substance abuse is now a significant national crisis and patients may need a range of services depending on their complex of problems. Some individuals may need assistance with speech, resonance, and swallowing disorders and require prosthetic intervention provided via interdisciplinary management from a cleft palate team.

Effect of Postoperative Oral Intake Status on Sarcopenia Six Months After Esophageal Cancer Surgery

Purpose: In patients with esophageal cancer, skeletal muscle mass has been reported to decrease progressively after surgery and be independently associated with a poor prognosis. The purpose of this study was to investigate perioperative changes in dysphagia, oral intake status, and nutritional status and identify factors related to sarcopenia six months after esophagectomy.Methods: A total of 134 patients who underwent radical resection for thoracic esophageal cancer between March 2016 and July 2019 were analyzed retrospectively. The diagnosis of sarcopenia was made by CT taken six months postoperatively using the cut-off criteria of skeletal muscle index (SMI) <52.4 cm2/m2 for male and SMI <38.5 cm2/m2 for female patients. As factors related to postoperative sarcopenia, dysphagia, oral intake status, nutritional status, and physical function were extracted from the medical records. Multivariate logistic regression analysis was performed to identify perioperative risk factors related to sarcopenia six months after surgery.Results: Of the 134 patients, 34.3% were judged to be unable to start oral intake on swallowing assessment. At discharge, 30.6% received tube feeding with or without oral intake. In the non-oral intake group on swallowing assessment, a significantly higher proportion of patients received tube feeding at discharge (p=0.014). Preoperative BMI, postoperative handgrip strength, and tube feeding at discharge were independent risk factors for sarcopenia six months after esophagectomy in male patients.Conclusions: Oral intake status at discharge is significantly related to postoperative sarcopenia in patients with esophageal cancer. Identifying high-risk groups might allow early detection of malnutrition and provision of appropriate care.

Relationship between tongue pressure and dysphagia diet in patients with acute stroke

A dysphagia diet is important for patients with stroke to help manage their nutritional state and prevent aspiration pneumonia. Tongue pressure measurement is a simple, non-invasive, and objective method for diagnosing dysphagia. We hypothesized that tongue pressure may be useful in making a choice of diet for patients with acute stroke. Using balloon-type equipment, tongue pressure was measured in 80 patients with acute stroke. On admission, a multidisciplinary swallowing team including doctors, nurses, speech therapists, and management dietitians evaluated and decided on the possibility of oral intake and diet form; the tongue pressure was unknown to the team. Diet form was defined and classified as dysphagia diet Codes 0 to 4 and normal form (Code 5 in this study) according to the 2013 Japanese Dysphagia Diet Criteria. In multivariate analysis, only tongue pressure was significantly associated with the dysphagia diet form (p<0.001). Receiver operating characteristic analyses revealed that the optimal cutoff tongue pressure for predicting diet Codes 1, 2, 3, 4, and 5 was 3.6 (p<0.001, area under the curve [AUC] = 0.997), 9.6 (p<0.001, AUC = 0.973), 12.8 (p<0.001, AUC = 0.963), 16.5 (p<0.001, AUC = 0.979), and 17.3 kPa (p<0.001, AUC = 0.982), respectively. Tongue pressure is one of the sensitive indicators for choosing dysphagia diet forms in patients with acute stroke. A combination of simple modalities will increase the accuracy of the swallowing assessment and choice of the diet form.

How Can Speech-Language Pathologists Think About Sensation During Swallowing Evaluation and Intervention?

Purpose Both the enjoyment of foods and safe swallowing revolve around incorporating multiple streams of sensory feedback to form a positive sensory experience; these include information about the taste, smell, texture, temperature, and even the sight of food. Traditional swallowing assessment and treatment paradigms have primarily focused on the motor aspects of swallowing. However, sensory information is vital for not only enjoying foods while eating but also coordinating safe and efficient swallow behaviors. The purpose of this clinical focus article is to discuss the clinical importance of sensation in swallowing evaluation and intervention. Conclusions During their clinical assessments of swallowing, speech-language pathologists are already documenting the functional results of oropharyngeal sensorimotor impairments (e.g., residue). A combination of sensory and motor aspects is already integrated within current behavioral treatment strategies for dysphagia. Focused attention to the salient sensory features of swallowing has the potential to improve swallowing evaluation and intervention efforts. A discussion of potential future research in improved measurement and documentation of altered sensation is provided.

Severe Dysphagia Predicts Poststroke Fever

Background and Purpose: Fever is a common observation after ischemic or hemorrhagic stroke and is associated with a worse clinical outcome. Infections, stroke severity, preexisting medical conditions, insertion of catheters, and dysphagia have been implicated in causing poststroke fever. Given that dysphagia has not been evaluated in detail yet, the aim of this study was to investigate if the severity of dysphagia assessed by a detailed swallowing assessment predicts poststroke fever. Methods: In this retrospective monocentric cohort study, all patients admitted for ischemic or hemorrhagic stroke within 12 months were included. Patients underwent a detailed standardized swallowing assessment including a clinical exam by a speech therapist and fiberoptic endoscopic evaluation in a subset of patients. Patients who developed fever within 5 days were compared with patients without fever regarding swallowing parameters and other clinical characteristics relevant for the prediction of poststroke fever. Results: Nine hundred twenty-three patients with acute ischemic or hemorrhagic stroke were included. One hundred twenty-seven (13.8%) patients developed fever. In multivariable analyses, fever was independently predicted by moderate-to-severe dysphagia in clinical assessments (odds ratio [95% CI], 3.05 [1.65–5.66]) and also by dysphagia with proven risk of aspiration as a combined end point of clinical and instrumental assessments (1.79 [1.07–3.00]). Other independent predictors were stroke severity (odds ratio, 1.06 per point on the National Institutes of Health Stroke Scale score [1.01–1.11]) and the presence of an urinary catheter (odds ratio, 2.03 [1.13–3.65]). Conclusions: Severe dysphagia evaluated by a detailed clinical assessment complemented by instrumental testing predicts the development of poststroke fever. Early identification of patients with severe dysphagia after stroke followed by consequent monitoring and treatment might be effective in reducing poststroke fever.

The Development and Validation of the SWADOC: A Study Protocol for a Multicenter Prospective Cohort Study

Background: After a coma, patients with severe brain injury may present disorders of consciousness (DOC). A substantial proportion of these patients also suffer from severe dysphagia. Assessment of and therapy for swallowing disabilities of patients with DOC are essential because dysphagia has major functional consequences and comorbidities. Dysphagia evaluation in patients with DOC is impeded by the lack of adapted tools. The first aim of this study was to create a new tool, the SWallowing Assessment in Disorders Of Consciousness (SWADOC), and propose a validation protocol. The SWADOC was developed to help therapists assess factors related to swallowing in patients with DOC. The second aim was to investigate the relationship between patients' level of consciousness and SWADOC items and scores.Method/Design: In this multicenter prospective cohort, 104 patients with DOC will be tested three times over five consecutive days with the SWADOC. Statistical analyses will focus on the reliability and validity of the SWADOC, especially the intrarater and interrater reliability, internal consistency, measures of dispersion, and concurrent validity with the Facial Oral Tract Therapy Swallowing Assessment of Saliva (FOTT-SAS). The level of consciousness will be assessed with the Simplified Evaluation of CONsciousness Disorders (SECONDs) and the Coma Recovery Scale-Revised (CRS-R).Discussion: The assessment of swallowing abilities among patients with DOC is the first necessary step toward the development of a customized dysphagia care plan. A validated scoring tool will be essential for clinicians to better assess dysphagia in patients with DOC and document the evolution of their disorders.Trial Registration: NCT04706689.

Dysphagia Identification and Assessment in Adults in Primary Care Settings—A Canadian Study of Dietitians

Dysphagia affects up to 35% of older adults living in the community and is considered a significant risk factor for malnutrition and aspiration. Early intervention is important, yet dietitian referrals for dysphagia management in primary care are disproportionately low considering the prevalence of dysphagia and its risk factors. As little is known about dietitian’s current dysphagia identification and assessment practices in Canada, an online survey was developed. Registered dietitians practicing in primary care were invited to participate. Of the 70 surveys completed, nearly 75% do not have a dysphagia screening process where they practice, and only 8% reported performing noninstrumental, clinical swallowing assessment (CSA). Lack of competency or skills required to complete dysphagia screening and assessment was the most reported barrier. Many respondents were unsure or did not believe CSA fell within their scope of practice, and over 70% reported needing hands-on dysphagia screening and assessment training. Current practices in primary care could be placing individuals with dysphagia, and those at risk, in jeopardy of being overlooked. Initiatives to increase dysphagia awareness, create screening processes, and increase awareness of dietitian’s scope of practice are needed to enable primary care dietitians to develop competency in dysphagia screening and assessment.