Effects of a multidisciplinary management program on neurologically impaired patients with dysphagia

Clinical Practice Guidelines for Oropharyngeal Dysphagia

OBJECTIVE

Dysphagia is a common clinical condition characterized by difficulty in swallowing. It is sub-classified into oropharyngeal dysphagia, which refers to problems in the mouth and pharynx, and esophageal dysphagia, which refers to problems in the esophageal body and esophagogastric junction. Dysphagia can have a significant negative impact one's physical health and quality of life as its severity increases. Therefore, proper assessment and management of dysphagia are critical for improving swallowing function and preventing complications. Thus a guideline was developed to provide evidence-based recommendations for assessment and management in patients with dysphagia.

METHODS

Nineteen key questions on dysphagia were developed. These questions dealt with various aspects of problems related to dysphagia, including assessment, management, and complications. A literature search for relevant articles was conducted using Pubmed, Embase, the Cochrane Library, and one domestic database of KoreaMed, until April 2021. The level of evidence and recommendation grade were established according to the Grading of Recommendation Assessment, Development and Evaluation methodology.

RESULTS

Early screening and assessment of videofluoroscopic swallowing were recommended for assessing the presence of dysphagia. Therapeutic methods, such as tongue and pharyngeal muscle strengthening exercises and neuromuscular electrical stimulation with swallowing therapy, were effective in improving swallowing function and quality of life in patients with dysphagia. Nutritional intervention and an oral care program were also recommended.

CONCLUSION

This guideline presents recommendations for the assessment and management of patients with oropharyngeal dysphagia, including rehabilitative strategies.

Attitude and experience of neurologists towards percutaneous endoscopic gastrostomy: an Egyptian study

Background

Dysphagia is a common symptom among various neurological diseases. Guidelines recommend gastrostomy insertion for prolonged dysphagia with lower rate of intervention failure encountered with percutaneous endoscopic gastrostomy (PEG) as compared to nasogastric tube insertion.

Methods

Neurology consultants only were included and completed a self-administered questionnaire concerning their practice backgrounds and previous experience with PEG feeding during their practice.

Results

Ninety-eight percent stated that they would recommend PEG for patients with prolonged need of nasogastric feeding. However, only 88% actually referred patients to perform PEG, with the cerebrovascular disorders being the most common cases to be referred. The main barriers the surveyed neurologists faced were family resistance and financial reasons (53.5%). Interestingly, younger neurologists practicing for less than 15 years referred patient to perform PEG significantly more frequent than older ones (p = 0.01). About 18% of our sample confirmed the lack of sufficient knowledge about the benefits of PEG feeding, and only 22% previously attended scientific sessions about the benefits and indications of PEG.

Conclusion

Based on our study, we recommend that PEG should be more encouraged in indicated neurological cases. Scientific sessions targeting neurologists and public awareness about the benefits of PEG and its relatively infrequent complications are highly demanded.

The South African dysphagia screening tool (SADS): A screening tool for a developing context

Background

Notwithstanding its value, there are challenges and limitations to implementing a dysphagia screening tool from a developed contexts in a developing context. The need for a reliable and valid screening tool for dysphagia that considers context, systemic rules and resources was identified to prevent further medical compromise, optimise dysphagia prognosis and ultimately hasten patients’ return to home or work.

Methodology

To establish the validity and reliability of the South African dysphagia screening tool (SADS) for acute stroke patients accessing government hospital services. The study was a quantitative, non-experimental, correlational cross-sectional design with a retrospective component. Convenient sampling was used to recruit 18 speech-language therapists and 63 acute stroke patients from three South African government hospitals. The SADS consists of 20 test items and was administered by speech-language therapists. Screening was followed by a diagnostic dysphagia assessment. The administrator of the tool was not involved in completing the diagnostic assessment, to eliminate bias and prevent contamination of results from screener to diagnostic assessment. Sensitivity, validity and efficacy of the screening tool were evaluated against the results of the diagnostic dysphagia assessment. Cohen’s kappa measures determined inter-rater agreement between the results of the SADS and the diagnostic assessment.

Results and conclusion

The SADS was proven to be valid and reliable. Cohen’s kappa indicated a high inter-rater reliability and showed high sensitivity and adequate specificity in detecting dysphagia amongst acute stroke patients who were at risk for dysphagia. The SADS was characterised by concurrent, content and face validity. As a first step in establishing contextual appropriateness, the SADS is a valid and reliable screening tool that is sensitive in identifying stroke patients at risk for dysphagia within government hospitals in South Africa.

Aspiration Pneumonia Following Severe Traumatic Brain Injury: Prevalence and Risk Factors for Long-Term Mortality

Dysphagia and aspiration pneumonia are prevalent but infrequently studied complications following severe traumatic brain injury (TBI). Aspiration pneumonia is responsible for a significant number of long-term deaths in this population, however, the reported number of deaths attributed to aspiration pneumonia may be inaccurate. This multicentre inception cohort (n= 2545) study analysed consecutive discharges from 3 metropolitan inpatient brain injury rehabilitation units from January 1990 to October 2007 following inpatient rehabilitation following primary TBI. Subject data was linked to national death registries to determine cause of death where relevant. This study aimed to (a) evaluate the prevalence of aspiration pneumonia, percutaneous endoscopic gastrostomy (PEG) insertion and dysphagia following TBI, (b) identify the number of deaths ascribed to aspiration pneumonia, and (c) characterise associated risk factors for long-term aspiration pneumonia related deaths compared to all other causes of death. In-hospital PEG insertion occurred in 18.4% of the sample, two thirds of whom remained dysphagic at discharge. In-hospital aspiration pneumonia was recorded in 3.6% of the sample. Postdischarge, people with TBI were 79 times more likely to die from aspiration pneumonia than the general population. Risks were higher for subjects discharged to a nursing home, with severe ongoing functional disability, dysphagia at discharge, in those who had experienced in-hospital aspiration pneumonia or required PEG insertion. Early identification and risk management of dysphagia and aspiration pneumonia in TBI nursing home populations may maximise these individuals' quality and length of life.

Factors affecting dysphagia management and compliance with recommendations in non-metropolitan healthcare settings

It is acknowledged that a team approach to management of stroke is essential to improving patient outcomes. For the speech-language pathologist (SLP), communication and swallowing are key concerns in stroke rehabilitation. However, little is known about how services are provided following stroke in non-metropolitan areas. This paper presents findings from a study investigating issues related to the provision of dysphagia services in non-metropolitan New South Wales (NSW) and Victoria. The theme 'You've got to have an impact' was one of the major themes identified from analysis of data gathered via semi-structured interviews with eight SLPs. Participants in this study highlighted compliance with recommendations as a point of breakdown in the care of the patient with dysphagia. Underlying compliance were issues related to team functioning that could hold the key to improving outcomes. These findings have implications for non-metropolitan SLPs' ability to participate within a stroke team, for the way care for patients with dysphagia is conceptualized, and for improvement of compliance with SLP recommendations.

Interdisciplinary evaluation of dysphagia: clinical swallowing evaluation and videoendoscopy of swallowing

Patients with dysphagia have impairments in many aspects, and an interdisciplinary approach is fundamental to define diagnosis and treatment. A joint approach in the clinical and videoendoscopy evaluation is paramount.

Aim

To study the correlation between the clinical assessment (ACD) and the videoendoscopic (VED) assessment of swallowing by classifying the degree of severity and the qualitative/descriptive analyses of the procedures.

Study design

cross-sectional, descriptive and comparative.

Materials and methods

held from March to December of 2006, at the Otolaryngology/Dysphagia ward of a hospital in the country side of São Paulo. 30 dysphagic patients with different disorders were assessed by ACD and VED. The data was classified by means of severity scales and qualitative/descriptive analysis.

Results

the correlation between severity ACD and VED scales pointed to a statistically significant low agreement (KAPA = 0.4) (p=0,006). The correlation between the qualitative/descriptive analysis pointed to an excellent and statistically significant agreement (KAPA=0.962) (p<0.001) concerning the entire sample.

Conclusion

the low agreement between the severity scales point to a need to perform both procedures, reinforcing VED as a doable procedure. The descriptive qualitative analysis pointed to an excellent agreement, and such data reinforces our need to understand swallowing as a process.

Effects of therapy in oropharyngeal dysphagia by speech and language therapists: a systematic review

Medical and paramedical treatments should be evaluated according to current standards of evidence-based medicine. Evaluation of therapy in oropharyngeal dysphagia fits into this growing interest. A systematic review is given of the literature on the effects of therapy in oropharyngeal dysphagia carried out by speech therapists. Thus, the review excludes reports of surgical or pharmacological treatments. The literature search was performed using the electronic databases PubMed and Embase. All available inclusion dates up to November 2008 were used. The search was limited to English, German, French, Spanish, and Dutch publications. MESH terms were supplemented by using free-text words (for the period after January 2005). Fifty-nine studies were included. In general, statistically significant positive therapy effects were found. However, the number of papers was rather small. Moreover, diverse methodological problems were found in many of these studies. For most studies, the conclusions could not be generalized; comparison was hindered by the range of diagnoses, types of therapies, and evaluation techniques. Many questions remain about the effects of therapy in oropharyngeal dysphagia as performed by speech and language therapists. Although some positive significant outcome studies have been published, further research based on randomized controlled trials is needed.

Evaluation of swallowing disorders with videofluoroscopy in Austria: a survey

AIM

The aim of our study was to assess the availability of videofluoroscopy to examine patients with swallowing disorders in Austria.

MATERIALS AND METHODS

A questionnaire was sent to the department heads of the radiology departments of all hospitals (n=143) and to all non-hospital-based radiologic practices (n=226) throughout Austria. The survey focused on the availability of videofluoroscopic swallowing studies and on the studies performed in patients with deglutition disorders.

RESULTS

The questionnaire was completed and returned by 134 of 143 radiology departments (94%) and 65 of 226 non-hospital-based radiologists (29%). Videofluoroscopic swallowing studies were performed in 38 of 134 radiology departments (28%) and in 21 of 65 practices (32%). The method is available in all nine Austrian states (100%) and 27 of 99 districts (27%). The number of examinations performed in different states ranged from 0.7 to 19 studies/10,000 population per year. The number of videofluoroscopic examinations per department or practice in the year 2001 ranged between 5 and 690 (median, 100 examinations). To 85% of videofluoroscopy units patients were referred from otorhinolaryngology/phoniatrics-logopedics, to 69% of videofluoroscopy units referrals were also from internal medicine, from neurology in 54%, and from pediatrics in 20%.

CONCLUSION

Despite the widespread availability of videofluoroscopy throughout Austria, its use still varies largely between different states. The data show that in general there is a wide-spread demand for videofluoroscopic swallowing studies.

Treatment of Oropharyngeal Dysphagia

Substantial ignorance and controversy surround the management of neuromyogenic pharyngeal dysphagia. The major obstacle to confident recommendations is the lack of high-level evidence supporting most available therapies. There is reasonable evidence supporting cricopharyngeal disruption (myotomy or dilatation) in primary restrictive disorders of this region, but low-level evidence supporting myotomy in pure neuromyogenic dysphagia. There is reasonable evidence supporting current dietary recommendations as aspiration-minimization strategies. There is only low-level evidence, albeit consistent, to support swallow-behavior modification therapies. The type of therapy needs to be tailored to the individual and depends upon many variables, including cognitive ability, severity and mechanics of pharyngeal dysfunction, and the perceived safety of continued oral feeding. One or more of these strategies are recommended where appropriate because where the level of evidence is low, it is at least consistently favorable and such therapies have not been proven to be ineffective.

[Clinical, endoscopical and manometric evaluation of swallowing in patients with acquired autoimmune myasthenia gravis]

Dysphagia, or difficulty swallowing, is a common problem following myasthenia gravis (MG) and may lead to aspiration of saliva, food or liquids. We herein present 22 MG patients, with complaint of dysphagia, evaluated by phonoaudiological evaluation, nasofibrolaryngoscopical analysis and manometry of upper esophageal sphincter. The main objective was to evaluate the phases of the swallowing process and anatomical and functional aspects of oropharyngeal musculature. The age of patients varied from 19 to 74 years; being 19 female and 3 male. The main data were: (1) statistically significant relation between the phonoaudiological clinical evaluation and nasofibrolaryngoscopical one; (2) stomatognatical system disorders present in 100%; (3) swallowing and chewing disorders present in 100%, when clinically evaluated, and in 81,8% when evaluated by the nasofibrolaryngoscopy; (4) statistically significant relation between penetration/aspiration and antecedents of pneumonia; (5) stomatognatical muscles very altered, difficulty controlling the bolus, collection of food in the pharynx or larynx and presence of penetration and/or aspiration showed significant correlation with weakness of a pharyngeal muscles. These findings justify the necessity to evaluate clinically the swallowing phases in MG patients, with the main purpose to prevent both aspiration and dehidration from inadequate oral intake.

Disfagia orofaríngea na distrofia miotônica: avaliação fonoaudiológica e análise nasofibrolaringoscópica

Apresentamos vinte pacientes com distrofia miotônica de Steinert, avaliados entre 1995 e 1999, pela análise fonoaudiológica e nasofibrolaringoscópica, com o objetivo de analisar e classificar as alterações da deglutição orofaríngea e funções do sistema estomatognático e considerar os fatores preditivos. A idade dos pacientes variou de 12 a 53 anos; 13 eram do sexo masculino e 7 do feminino. Os principais achados foram: (1) há relação estatisticamente significante entre avaliação fonoaudiológica e nasofibrolaringoscópica; (2) foram observadas alterações do sistema estomatognático, em 100% dos casos; (3) foram registradas alterações de deglutição em 95% dos pacientes, à avaliação fonoaudiológica, e em 70%, à nasofibrolaringoscopia; (4) os pacientes têm maior dificuldade para deglutir alimentos consistentes; (5) os músculos estomatognáticos muito alterados, desordem da fase faringeal, tosse após deglutição, antecedentes de pneumonia e queixas de mastigação/ deglutição apresentaram correlação estatisticamente significante com maior gravidade da doença. Foram avaliadas, estática e funcionalmente, estruturas envolvidas na dinâmica da deglutição. Esta avaliação deve constar da rotina do atendimento aos pacientes com distrofia miotônica de Steinert.

Predictive value of clinical indices in detecting aspiration in patients with neurological disorders

OBJECTIVES

(1) To evaluate the predictive value of a detailed clinical screening of aspiration in patients with neurological diseases, both with and without symptoms of dysphagia taking videofluoroscopy as the gold standard; (2) to assess the existence of risk factors for silent aspiration, measuring the cost-benefit ratio of radiological examination.

METHODS

93 consecutive patients meeting the diagnostic criteria for a neurological disease with a risk of swallowing dysfunctions (cerebrovascular accidents, brain injury, Parkinson's disease, multiple sclerosis, amyotrophic lateral sclerosis, myotonic dystrophy, and abiotrophic diseases) underwent a detailed clinical assessment using a 25 item form to check for symptoms of dysphagia and impairment of the oropharyngeal swallowing mechanism. The 3 oz water swallow test was also performed to assess the aspiration risk. Sensitivity, specificity, positive predictive, and negative predictive values (NPV) of dysphagia, history of cough on swallowing, and 3 oz test positivity, versus videofluoroscopy documented aspiration, taken as the gold standard, were measured in all the patients and in subgroups with different neurological disorders.

RESULTS

Non-specific complaints of dysphagia showed a very poor predictive value, whereas the symptom "cough on swallowing" proved to be the most reliable in predicting the risk of aspiration, with 74% sensitivity and specificity, 71% positive predictive, and 77% negative predictive value. The standardised 3-oz test had a higher predictive potential than the clinical signs, but had low sensitivity. The association of cough on swallowing with the 3 oz test gave a positive predictive of 84%, and an negative predictive value of 78%. In cases where the clinical tests failed to detect any impairment, videofluoroscopy documented only a low risk (20%) for mild aspiration.

CONCLUSIONS

The association of two clinical items (such as history of cough on swallowing and 3 oz test positivity) provides a useful screening tool, the cost:benefit ratio of which seems very competitive in comparison with videofluoroscopy in aspiration risk evaluation.

Outcomes of individualized interventions in patients with severe eating difficulties

The aim of this case study is to describe the outcomes of individualized interventions for patients with severe eating difficulties. The participants were 15 patients who had severe eating difficulties following a stroke or brain tumor and were receiving oral feeding or tube feeding. Interventions focused on training functions needed for eating, activities in eating, and discussions with the patient. Improvements were especially noted in eating activities, and some improvements were noted in oral movements and nutritional status. Before the interventions, none of the patients ate regular food; afterward, six did, and in four patients, the feeding tube was removed. The patients said eating was easier, and they could eat in a safe way. Furthermore, they appreciated the attention to their experience during meals. Although the impairments were not always alleviated, the patients found means to cope with their eating difficulties.

Modified barium swallow: clinical and radiographic correlation and relation to feeding recommendations

Clinical and videofluoroscopic evaluation of swallowing were correlated to determine their agreement and relationship to feeding recommendations. We reviewed a total of 148 patients with swallowing difficulties, of which 93 (45 women, 48 men; mean age 62 years) were evaluated by both clinical and radiographic examinations. A variety of materials were used for clinical bedside evaluation of oral and pharyngeal function. Radiographic examination was done with variable viscosity materials and videotape recording of the oral cavity and pharynx. The severity of oral and pharyngeal abnormalities was graded and findings of the examinations were compared. The combined results of both evaluations generated an index of swallowing difficulty which was correlated to the type of diet used if oral feeding was recommended or to a nonoral route of nutrition. In the assessment of oral and pharyngeal dysfunction, clinical evaluation and radiographic examination correlated closely in 94% of patients; however, the status of pharyngeal function was not determined in 61 (66%) of the 93 patients by clinical examination alone. The combined swallowing index was calculated in 89 patients and its severity correlated significantly with the type of feeding recommended; 64 patients were placed on one of three types of diets and 25 had enteral feedings. In conclusion, combined clinical and radiographic examinations correlated well, but clinical evaluation alone was limited by failure to evaluate the pharynx in many patients. The swallowing severity correlated well with final feeding recommendations.

Efficacy of behavioral treatment for oropharyngeal dysphagia

In this critique of research in behavioral treatment of dysphagia, three types of investigations are briefly reviewed: general management guides, specific behavioral treatments applied to single patients or a few patients, and dysphagia programs applied to large numbers of patients. Efficacy of treatment has been demonstrated in some of the single-case or small-group studies where specific techniques have been utilized. Unfortunately, efficacy has not been demonstrated in any of the studies where large groups of patients have been enrolled in dysphagia programs. Some of the critical factors that have been lacking in many of these studies are discussed and the need to include functional outcome measures in efficacy studies is emphasized.

Treatment efficacy for adults with oropharyngeal dysphagia

Over the last 10 years, the literature in the area of oropharyngeal dysphagia has focused on treatment techniques for specific medical conditions and the documentation of treatment efficacy. Increasingly, there has been multidisciplinary involvement in the study of swallowing physiology and dysphagia. Investigators have used a wide range of technologies in quantifying changes in swallowing physiology as a result of imposed therapeutic adjustments and maneuvers. Group studies and single case design investigations have attempted to address the question of treatment efficacy. This article addresses the status of clinical treatment and the future needs for research.