Dysphagia in the elderly population: A Videofluoroscopic study

Analysis of printing temperature effect on texture modification: Potential of soy protein isolate-based bigel for swallowing-friendly food

This work prepared the soy protein isolate (SPI)-beeswax-based bigel loaded with β-carotene, and the effect of printing temperature (PT) on texture regulation was investigated. During printing, increasing PT weakened the rheological properties and printability of ink. However, the mechanical strength and deformation resistance at non-linear regions of products were strengthened after printing. The more compact moisture binding state and stronger hardness and gumminess were found as PTs increased. Consequently, cold extrusion (PT at 25 °C) achieved the highest precision, and the product was classified as level-5 or level-6 minced and moist food under the International Dysphagia Diet Standardization Initiative (IDDSI) framework. Confocal laser scanning microscopy (CLSM) and Scanning electron microscope (SEM) showed that increasing PT might melt the beeswax-based oleogel and aggregate into larger particles during printing. After printing, the gathering particles would recrystallize and form the needle-like crystal with β/β' structure, as Polarized light microscopy (PLM) and X-ray diffraction (XRD) shown. This microstructure would provide the products with higher mechanical strength deliver β-carotene to the intestine and prolong the release behavior during digestion. This work provides new insight into achieving texture modification and tailoring high nutritional dysphagia diets by 3D printing.

Performance of swallowing function between older people with and without clinical complaints

PURPOSE

To compare the findings of speech-language-hearing evaluations, signs in fiberoptic endoscopic evaluation of swallowing, and nutritional risk between healthy older adults with and without self-reported swallowing difficulties and correlate the level of oral intake with the severity of pharyngeal residues and nutritional risk.

METHODS

This cross-sectional retrospective study included 71 older people and divided them into two groups based on the presence of swallowing complaints. Data were collected from speech-language-hearing evaluations, oral health status, and videoendoscopy signs with four food consistencies classified by the International Dysphagia Diet Standardisation Initiative (IDDSI) to compare the groups. Pharyngeal residues were analyzed and classified using the Yale Pharyngeal Residue Severity Rating Scale (YPRSRS), the level of oral intake was assessed using the Functional Oral Intake Scale (FOIS), and nutritional risk was evaluated using the Malnutrition Screening Tool (MST).

RESULTS

Differences were found in speech-language-hearing evaluations, as well as signs of posterior oral spillage and pharyngeal residues with levels 0, 2, and 4 consistencies and laryngeal penetration with level 0 consistency. The level of oral intake was moderately negatively correlated with the severity of pharyngeal residues and nutritional risk.

CONCLUSION

The group of older adults with complaints had differences in speech-language-hearing evaluations, posterior oral spillage, and pharyngeal residues with levels 0, 2, and 4 consistencies, and laryngeal penetration with level 0 consistency. The correlation indicated that the lower the level of oral intake, the greater the severity of pharyngeal residues and nutritional risk in the sample.

Application of B+M-Mode Ultrasound in Evaluating Dysphagia in Elderly Stroke Patients

OBJECTIVE

The purpose of this study was to evaluate and compare the swallow-related muscles and bones movement patterns during swallowing quantitatively by B+M-mode ultrasound, and to investigate its application value in dysphagia.

METHODS

Sixty elderly stroke patients with dysphagia (patient group) and sixty healthy elderly individuals (control group) were enrolled in this study. M-mode ultrasound was utilized to measure the radial displacement and duration of tongue and geniohyoid muscle movements. B-mode ultrasound was employed to assess hyoid bone displacement and the distance of hyoid-larynx approximation. Ultrasound parameters were compared between the two groups. Logistic regression was used to identify the optimal parameters with independent predictive value. The predictive efficacy of each parameter for dysphagia was evaluated using ROC curve analysis.

RESULTS

Both intraindividual and interindividual variations were observed in the B+M-mode imaging traces during the three swallows. Significant differences were found in the average radial displacement and duration of tongue and geniohyoid muscle movements, hyoid bone displacement, and hyoid-larynx approximation distance between the two groups (all p < 0.001). The radial displacement of the tongue and geniohyoid muscle, hyoid bone displacement, and hyoid-larynx approximation distance were lower in the patient group compared to the control group, while the duration of tongue and geniohyoid muscle movements was higher in the patient group. Logistic regression selected the radial displacement of the tongue, the duration of geniohyoid muscle movement, and the hyoid-larynx approximation distance as significant predictors. The combined model demonstrated excellent predictive performance with an AUC of 0.994 and good model fit (p < 0.001).

CONCLUSION

The B+M-mode ultrasound offers a rapid and safe technique for the preliminary evaluation of swallowing movements. It can serve as a quantitative and noninvasive method for the clinical screening of dysphagia.

Characterizing Physiologic Swallowing Impairment Profiles: A Large-Scale Exploratory Study of Head and Neck Cancer, Stroke, Chronic Obstructive Pulmonary Disease, Dementia, and Parkinson's Disease

PURPOSE

The purpose of the present study was to use a large swallowing database to explore and compare the swallow-physiology impairment profiles of five dysphagia-associated diagnoses: chronic obstructive pulmonary disease (COPD), dementia, head and neck cancer (HNC), Parkinson's disease (PD), and stroke.

METHOD

A total of 8,190 patients across five diagnoses were extracted from a de-identified swallowing database, that is, the Modified Barium Swallow Impairment Profile Swallowing Data Registry, for the present exploratory cross-sectional analysis. To identify the impairment profiles of the five diagnoses, we fit 18 partial proportional odds models, one for each of the 17 Modified Barium Swallow Impairment Profile components and the Penetration-Aspiration Scale, with impairment score as the dependent variable and diagnoses, age, sex, and race as the independent variables with interactions between age and diagnoses and between PD and dementia (in effect creating a PD with dementia [PDwDem] group). For components with > 5% missingness, we applied inverse probability weighting to correct for bias.

RESULTS

PD and COPD did not significantly differ on 13 of the 18 outcome variables (all ps > .02). Dementia, stroke, and PDwDem all showed worse impairments than COPD or PD on five of six oral components (all ps < .007). HNC had worse impairment than all diagnoses except PDwDem for nine of 10 pharyngeal components (all ps < .006). Stroke and HNC had worse penetration/aspiration than all other diagnoses (all ps < .003).

CONCLUSIONS

The present results show that there are both common and differing impairment profiles among these five diagnoses. These commonalities and differences in profiles provide a basis for the generation of hypotheses about the nature and severity of dysphagia in these populations. These results are also likely highly generalizable given the size and representativeness of the data set.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.27478245.

Presbyphagia: A Conceptual Analysis of Contemporary Proposals and Their Influences on Clinical Diagnosis

Swallowing is an essential process to maintain homeostasis in the human body. With aging, changes occur in both central and peripheral structures, giving rise to presbyphagia, involving morphological and functional alterations in swallowing. However, there is a lack of consensus on the definition of presbyphagia and its relationship with dysphagia. The primary objective of this research is to analyze the proposed definitions for the term "presbyphagia" in specialized literature and, secondarily, to assess how these definitions can influence the diagnosis of oropharyngeal dysphagia (OD). A systematic review was conducted to analyze the proposed definitions of presbyphagia and their impact on dysphagia diagnosis. Three main approaches to the definitions of presbyphagia were identified: (1) presbyphagia as an alteration in the swallowing process in healthy older adults, (2) presbyphagia as a swallowing disorder compensated by the physiological potential of healthy older adults, and (3) presbyphagia as a synonym for dysphagia. This study addresses the need for a clear definition of presbyphagia in older adults. It is concluded that presbyphagia should be understood as the etiology of OD rather than a compensated disorder or a synonym. This has significant implications for the diagnosis and treatment of swallowing disorders in the aging population. Given the ongoing nature of scientific discussion in this field, further research is required.

Swallowing performance of elderly people and sociodemographic, cognitive and language factors

PURPOSE

To analyze the correlation between swallowing, language and cognition performance and describe the sociodemographic data of elderly people without previous neurological disorders.

METHODS

Analytical cross-sectional study, with non-probabilistic sample for convenience and data collection by telecall. The aspiration screening test (Yale Swallow Protocol) was used to identify and exclude elderly people at risk of aspiration. Then, sociodemographic data were collected, and instruments were applied: activity of daily living (IADLs), risk of dysphagia (EAT-10), cognitive screening (Mini Mental State Examination - MMSE) and language (Montreal-Toulouse Language Battery - MTL-Brazil).

RESULTS

The sample consisted of 32 elderly people from the Federal District, with a mean age of 69.00±7.73 years and schooling of 10.00±5.60 years. The scores on the EAT-10, MMSE and MTL Battery instruments were altered in four, 22 and 26 elderly, respectively, indicating, in this case, risk of dysphagia, suggestion of cognitive alteration and language alteration. Regarding food, of the total sample, 13 seniors (40%) complained of needing modified food, as well as 10 of these also obtained MMSE scores suggestive of cognitive alteration. When comparing the groups with and without complaints and/or risk of dysphagia, there was no statistically significant difference in relation to sociodemographic, cognitive and language variables. Binary logistic regression models also showed no statistically significant results.

CONCLUSION

The present study, when correlating the swallowing, language and cognition findings, did not obtain statistically significant results. It was observed that the elderly with swallowing complaints also showed results suggestive of cognitive and language changes in the tests performed, but there was no statistically significant difference in relation to the elderly without complaints or swallowing changes.

The Development of an Artificial Intelligence Video Analysis-Based Web Application to Diagnose Oropharyngeal Dysphagia: A Pilot Study

The gold standard test for diagnosing dysphagia is the videofluoroscopic swallowing study (VFSS). However, the accuracy of this test varies depending on the specialist's skill level. We proposed a VFSS-based artificial intelligence (AI) web application to diagnose dysphagia. Video from the VFSS consists of multiframe data that contain approximately 300 images. To label the data, the server separated them into frames during the upload and stored them as a video for analysis. Then, the separated data were loaded into a labeling tool to perform the labeling. The labeled file was downloaded, and an AI model was developed by training with You Only Look Once (YOLOv7). Using a utility called SplitFolders, the entire dataset was divided according to a ratio of training (70%), test (10%), and validation (20%). When a VFSS video file was uploaded to an application equipped with the developed AI model, it was automatically classified and labeled as oral, pharyngeal, or esophageal. The dysphagia of a person was categorized as either penetration or aspiration, and the final analyzed result was displayed to the viewer. The following labeling datasets were created for the AI learning: oral (n = 2355), pharyngeal (n = 2338), esophageal (n = 1480), penetration (n = 1856), and aspiration (n = 1320); the learning results of the YOLO model, which analyzed dysphagia using the dataset, were predicted with accuracies of 0.90, 0.82, 0.79, 0.92, and 0.96, respectively. This is expected to help clinicians more efficiently suggest the proper dietary options for patients with oropharyngeal dysphagia.

Characteristics of Tongue Pressure Measured by Novel Multisite Flexible Sensors in Nasopharyngeal Carcinoma Patients With Dysphagia

OBJECTIVE

To explore characteristics of tongue pressure changes in nasopharyngeal carcinoma (NPC) patients with dysphagia after radiotherapy using a novel system with multisite flexible sensors.

DESIGN

Prospective observational study.

SETTING

Inpatient rehabilitation centers and community dwellings.

PARTICIPANTS

Nineteen patients with dysphagia after radiotherapy for NPC and 19 healthy participants were recruited for this study (N=38).

INTERVENTION

Not applicable.

MAIN OUTCOME MEASURES

A new 9-site (3 × 3) flexible tongue pressure sensor was used to measure tongue-to-palate pressure across different parts of the tongue. The oral tongue was divided into 3 parts: anterior tongue region (TAR), central tongue region (TCR), and posterior tongue region (TPR); 3 sensors were placed on each part. The mean tongue pressure and endurance time at the 3 sites in the TAR, TCR, and TPR were analyzed. The ratios of the mean TAR, TCR, and TPR values were calculated.

RESULTS

Pressures of TAR, TCR, and TPR in NPC patients with dysphagia were significantly lower than those in healthy participants (P<.05). The pressure in TPR decreased most significantly, followed by that in TCR. The endurance times of TAR and TCR were longer than those of healthy participants (P<.05). The endurance time of TPR was not significantly different between the patients and healthy participants (P>.05). Ratios of pressure between TAR and TCR and TAR and TPR in patients were lower than that in healthy participants (P<.05). There was no significant difference in the TCR to TPR pressure ratio between patients and healthy participants (P>.05).

CONCLUSIONS

Tongue pressure significantly decreased in NPC patients with dysphagia, and the drop in pressure was most pronounced in the TPR area. The results of our study indicate that we should pay attention to the pressure training of the TPR during treatments. The endurance time of the TAR and TCR increased significantly, which may be due to bolus transport compensation. Therefore, clinical rehabilitation strategies should aim to increase the endurance time training in NPC patients after radiotherapy to help increase the effectiveness of the swallowing process in patients.

Stability and consistency of symptom clusters in younger versus older patients receiving chemotherapy

BACKGROUND

By 2035, the number of newly diagnosed cancer cases will double and over 50% will be in older adults. Given this rapidly growing demographic, a need exists to understand how age influences oncology patients' symptom burden. The study purposes were to evaluate for differences in the occurrence, severity, and distress of 38 symptoms in younger (< 60 years) versus older (≥ 60 years) oncology patients undergoing chemotherapy and to evaluate for differences in the stability and consistency of symptom clusters across the two age groups.

METHODS

A total of 1329 patients were dichotomized into the younger and older groups. Patients completed demographic and clinical questionnaires prior to the initiation of their second or third cycle of chemotherapy. A modified version of Memorial Symptom Assessment Scale was used to evaluate the occurrence, severity, and distress of 38 common symptoms associated with cancer and its treatment. Differences between the two age groups in demographic and clinical characteristics and ratings of occurrence, severity, and distress for the 38 symptoms were evaluated using parametric and nonparametric tests. Exploratory factor analyses were done within each age group to identify symptom clusters using symptom occurrence rates.

RESULTS

Compared to the younger group (14.8 (± 7.0)), older adults reported a lower mean number of symptoms (12.9 (± 7.2)). Older patients experienced lower occurrence rates for almost 50% of the symptoms. Regarding symptom clusters, an eight-factor solution was selected for both age groups. Across the two age groups, the eight symptom clusters (i.e., physical and cognitive fatigue, respiratory, psychological, hormonal, chemotherapy-related toxicity, weight gain, gastrointestinal, epithelial) were stable. However, symptoms within the physical and cognitive, chemotherapy-related toxicity, and gastrointestinal clusters were not consistent across the age groups.

CONCLUSIONS

To be able to provide tailored and effective symptom management interventions to older oncology patients, routine assessments of the core symptoms unique to the symptom clusters identified for this group warrants consideration. The underlying mechanism(s) for these inconsistencies in symptom burden is an important focus for future studies.

Comparative Analysis of the Prevalence of Dysphagia in Patients with Mild COVID-19 and Those with Aspiration Pneumonia Alone: Findings of the Videofluoroscopic Swallowing Study

Background and Objectives: Patients recovering from mild coronavirus disease (COVID-19) reportedly have dysphagia or difficulty in swallowing. We compared the prevalence of dysphagia between patients diagnosed with mild COVID-19 and those diagnosed with aspiration pneumonia alone. Materials and Methods: A retrospective study was conducted from January 2020 to June 2023 in 160 patients referred for a videofluoroscopic swallowing study (VFSS) to assess for dysphagia. The cohort included 24 patients with mild COVID-19 and aspiration pneumonia, 30 with mild COVID-19 without aspiration pneumonia, and 106 with aspiration pneumonia alone. We reviewed the demographic data, comorbidities, and VFSS results using the penetration-aspiration scale (PAS) and functional dysphagia scale (FDS). Results: In a study comparing patients with mild COVID-19 (Group A) and those with aspiration pneumonia alone (Group B), no significant differences were observed in the baseline characteristics, including the prevalence of dysphagia-related comorbidities between the groups. Group A showed milder dysphagia, as evidenced by lower PAS and FDS scores, shorter oral and pharyngeal transit times (p = 0.001 and p = 0.003, respectively), and fewer residues in the vallecula and pyriform sinuses (p < 0.001 and p < 0.03, respectively). When Group A was subdivided into those with COVID-19 with (Group A1) and without aspiration pneumonia (Group A2), both subgroups outperformed Group B in terms of specific VFSS metrics, such as oral transit time (p = 0.01), pharyngeal transit time (p = 0.04 and p = 0.02, respectively), and residue in the vallecula (p = 0.04 and p = 0.02, respectively). However, Group B showed improved triggering of the pharyngeal swallowing reflex compared with Group A2 (p = 0.02). Conclusion: Mild COVID-19 patients showed less severe dysphagia than those with aspiration pneumonia alone. This finding was consistent across VFSS parameters, even when the COVID-19 group was subdivided based on the status of aspiration pneumonia.

Effects of suprahyoid muscle strengthening exercise using kinesiology taping on muscle activation and thickness in community-dwelling elderly: A randomized controlled trial

BACKGROUND

Recently, swallowing resistive exercise using kinesiology taping (KT) has been reported as a novel method for dysphagia rehabilitation However, clinical evidence is still unclear, and effects in the elderly have not been confirmed.

OBJECTIVE

This study aimed to investigate the effects of suprahyoid muscle strengthening exercise using KT on muscle activation and thickness in community-dwelling elderly.

METHODS

A total of 24 healthy older people were enrolled in this study and randomly assigned to an experimental group and a placebo group. In the experimental group, KT was attached to the front of the neck with a tension of about 70% to 80%, and a resistive swallowing exercise was performed. In the placebo group, the tape was applied similarly but without tension. Both groups performed resistive swallowing exercises 10 times a day (50 swallows per day) for 6 weeks. The activation and thickness of the suprahyoid muscles were measured using portable ultrasound equipment and an surface electromyelograph device.

RESULTS

The experimental group showed a significant increase in suprahyoid muscle activation (mean and peak) and muscle thickness (digastric and mylohyoid) than the placebo group (all, P < .05).

CONCLUSION

This study confirmed that suprahyoid muscle strengthening exercise using KT had a positive effect on the suprahyoid muscles in healthy older adults, thus suggesting the possibility of a therapeutic exercise method for dysphagia rehabilitation.

Evaluation of Esophageal Dysphagia in Elderly Patients

PURPOSE OF REVIEW

While guidelines exist for the evaluation and management of esophageal dysphagia in the general population, dysphagia disproportionately affects the elderly. In this article, we reviewed the literature on evaluating esophageal dysphagia in elderly patients and proposed a diagnostic algorithm based on this evidence.

RECENT FINDINGS

In older patients, dysphagia is often well compensated for by altered eating habits and physiologic changes, underreported by patients, and missed by healthcare providers. Once identified, dysphagia should be differentiated into oropharyngeal and esophageal dysphagia to guide diagnostic workup. For esophageal dysphagia, this review proposes starting with endoscopy with biopsies, given its relative safety even in older patients and potential for interventional therapy. If endoscopy shows a structural or mechanical cause, then further cross-sectional imaging should be considered to assess for extrinsic compression, and same session endoscopic dilation should be considered for strictures. If biopsies and endoscopy are normal, then esophageal dysmotility is more likely, and high-resolution manometry and additional workup should be performed following the updated Chicago Classification. Even after diagnosis of the root cause, complications including malnutrition and aspiration pneumonia should also be assessed and monitored, as they both result from and can further contribute to dysphagia. The successful evaluation of esophageal dysphagia in elderly patients requires a thorough, standardized approach to collecting a history, selection of appropriate diagnostic workup, and assessment of risk of potential complications, including malnutrition and aspiration.

Presbyphagia: Dysphagia in the elderly

Dysphagia has been classified as a “geriatric syndrome” and can lead to serious complications that result in a tremendous burden on population health and healthcare resources worldwide. A characteristic age-related change in swallowing is defined as “presbyphagia.” Medical imaging has shown some changes that seriously affect the safety and efficacy of swallowing. However, there is a general lack of awareness of the effects of aging on swallowing function and a belief that these changes are part of normal aging. Our review provides an overview of presbyphagia, which has been a neglected health problem for a long time. Attention and awareness of dysphagia in the elderly population should be strengthened, and targeted intervention measures should be actively implemented.

Removable partial prosthesis combined with swallowing training is an efficient clinical solution for oral cancer post-operation patients with palatal defect and dysphagia: a prospective study

OBJECTIVE

Dysphagia is one of the major complications of oral cancer patients, and is disturbing thousands of patients worldwide. Our study aim to evaluate the clinical efficacy of prosthesis combined with swallowing training on palatal defect and dysphagia in post-operative oral cancer patients.

MATERIALS AND METHODS

Sixteen oral cancer patients with palatal defect and dysphagia post-operation were treated with removable prosthesis and individualized swallowing function training. Swallowing function of patients before and after treatment was analyzed and compared by videofluoroscopic swallowing examination. The severity of depression and life quality were evaluated by Depression Scale (SDS) and Functional Assessment of Cancer Therapy-Head and Neck (FACT-H&N) scores, respectively.

RESULTS

Oral transit time (OTT) significantly shortened after treatment (P < 0.01), and Penetration-Aspiration Scale (PAS) scores was significantly higher after treatment (P < 0.001). Different consistency bolus showed different risk of aspiration. Thickened liquids were related to lower PAS scores (P < 0.001). SDS standard score was significantly lower after treatment (P < 0.05). The total score of FACT-H&N after treatment was significantly higher (P < 0.05). No patients came back for regressed swallowing function during the follow-up period (17.06 ± 2.376 months).

CONCLUSION

Removable prosthesis and swallowing training can significantly improve swallowing function, reduce depression degree, and improve quality of life (QOL).

CLINICAL RELEVANCE

Removable prosthesis combined with swallowing training is a cheap and effective method to improve QOL in patients with palate defect and dysphagia after oral cancer.

Association Between Oral Health and Swallowing Function in the Elderly

Objective

Although the oral environment significantly affects the risk of pneumonia, there have been few studies regarding its relation with swallowing. There is no doubt that there is a significant link between the oral environment and the development of pneumonia; however, there have been few comparative studies of swallowing using video endoscopy (VE) and video fluorography (VF) as indicators to determine the actual availability of oral intake and the choice of food form. This study was performed to examine whether the oral environment or swallowing function contributes more to the development of pneumonia in the elderly.

Methods

The study population consisted of 24 patients (7 men and 17 women; age range: 64-97 years; average age: 86 years) assessed using the Oral Health Assessment Tool (OHAT), VE and VF at Fukuoka Dental College Hospital. The most common disease was pneumonia (17 patients), followed by cerebral infarction (5 patients), pyelonephritis (4 patients), bronchitis (2 patients), Parkinson's disease (2 patients), scleroderma (1 patient), diabetes (1 patient), eosophageal cancer (1 patient) and Parkinson's syndrome> (1 patient). Some patients had multiple diseases. Oral intake was possible in 20 patients (80%), whereas tube feeding and gastric banding were required in 4 patients.

Results

The OHAT score was not correlated with either the VE or VF score. Furthermore, the OHAT score was not significantly different between the multiple- and no/single-pneumonia episode groups. The group with multiple episodes of pneumonia had lower VE and VF scores than those with no or only a single episode of pneumonia.

Conclusion

Oral assessment, VE and VF are necessary to evaluate swallowing in patients with suspected dysphagia. Swallowing function, especially as assessed by VE and VF, is more important than examination of the oral environment for evaluating risk of recurrent aspiration pneumonia in the elderly. In addition, multiple factors contribute to recurrent pneumonia in patients with a good oral environment, including subclinical aspiration, pharyngeal clearance and delayed activation of the gag reflex.

Postoperative Dysphagia Aortica: Comparison with Other Dysphagia

Dysphagia can be classified as oropharyngeal or esophageal, and functional or structural deficits of the esophagus can cause esophageal dysphagia. Dysphagia aortica (DA) is defined as dysphagia caused by extrinsic compression of the esophagus by the aorta. The aim of this study was to investigate the characteristics of DA by comparing the findings of videofluoroscopic swallowing studies (VFSS) with those of other dysphagia. Sixty-seven patients with postoperative dysphagia aortica (PDA), dysphagia after brainstem infarction (DBI), dysphagia after anterior cervical discectomy and fusion (DACDF), and subjective swallowing difficulty (SSD) without penetration and/or aspiration, who had undergone VFSS incorporating tests using 5 ml of thin and thick liquids, were included. The clinical data were collected retrospectively. The penetration-aspiration scale, functional dysphagia scale (FDS), esophageal transit time (ETT), and aortic lesion parameters (maximal diameter and distance between the lesion and the apex of the aortic arch) were assessed. The patients with PDA had higher FDS scores than the patients with SSD and lower scores than the patients with DBI did on thin liquids, while the FDS scores on thick liquids were lower in the patients with PDA than in those with DBI or DACDF. The patients with PDA had longer ETT than the other three groups. No correlation was found between the aortic lesion parameters and the VFSS findings. Although PDA has some oropharyngeal symptoms, the esophageal phase was affected mainly by PDA. After an operation on the aorta, VFSS should be considered before resuming oral feeding.

Dysphagia in non-intubated patients affected by COVID-19 infection

Purpose

Patients affected by COVID-19 are assumed to be at high risk of developing swallowing disorders. However, to our best knowledge, data on the characteristics and incidence of dysphagia associated with COVID-19 are lacking, especially in non-intubated patients. Therefore, we investigated the onset of swallowing disorders in patients with laboratory-confirmed COVID-19 infection who have not been treated with invasive ventilation, in order to evaluate how the virus affected swallowing function regardless of orotracheal intubation.

Methods

We evaluated 41 patients admitted to the COVID department of our Hospital when they had already passed the acute phase of the disease and were therefore asymptomatic but still positive for SARS-CoV-2 RNA by RT-PCR. We examined patients’ clinical history and performed the Volume-Viscosity Swallow Test (VVST). Each patient also answered the Swallowing Disturbance Questionnaire (SDQ). After 6 months, we performed a follow-up in patients with swallowing disorders.

Results

Eight of 41 patients (20%) presented with dysphagia symptoms during hospitalization and 2 of them (25%) still presented a SDQ high score and swallowing disorders with liquid consistency after 6 months.

Conclusion

Non-intubated patients can experience various grades of swallowing impairment that probably directly related to pulmonary respiratory function alterations and viral direct neuronal lesive activity. Although these symptoms show natural tendency to spontaneous resolution, their impact on a general physical impaired situation should not be underestimated, since it can adversely affect patients’ recovery from COVID-19 worsening health outcomes.