The Hydration Status of Adult Patients with Oropharyngeal Dysphagia and the Effect of Thickened Fluid Therapy on Fluid Intake and Hydration: Results of Two Parallel Systematic and Scoping Reviews

Progress in dysphagia management in older patients

PURPOSE OF REVIEW

The review summarizes current knowledge, recent findings and knowledge gaps about the pathophysiology and therapy of oropharyngeal dysphagia in older persons.

RECENT FINDINGS

Oropharyngeal dysphagia is a major yet underrecognized health problem in older persons. Due to its high prevalence, its multifactorial etiology and multimodal treatment it has been classified as a geriatric syndrome. Although the knowledge of its pathophysiology and the effective diagnostic approach increased substantially during the last years, there is still minor evidence on how to effectively manage and treat dysphagia. However, treatment should be a multicomponent approach, combining swallowing training, nutritional therapy and oral hygiene. Emerging new fields are neurostimulation and chemical sensory stimulation which may be added in selected patients and indications. The individual components to be chosen should be based on the individual dysphagia pattern and severity as well as the capabilities of the patient. Frequently, the competing risks of inadequate nutrition and unsafe swallowing represent a challenge in determining the individual relevance of each component.

SUMMARY

The understanding of the pathophysiology of oropharyngeal dysphagia increased substantially during recent years. However, due the multifaceted appearance of dysphagia, which requires an individualized treatment, the evidence for therapeutic approaches increases rather slowly.

What's new about hydration in dementia?

PURPOSE OF REVIEW

The aim of this study was to conduct a review of the literature published over the past 18 months and present the latest findings on hydration in individuals with dementia.

RECENT FINDINGS

A systematic review identified sarcopenia, polypharmacy, delayed oral transit, and poor rinsing ability as markers of eating-drinking-swallowing difficulties in early-stage dementia. A cross-sectional study found a high prevalence of dehydration (57-68%) among dementia patients, associated with hypertension, diabetes, chronic kidney disease, dysphagia, and cognitive decline. An analysis of national dementia care guidelines showed that only the UK and Switzerland addressed assisted nutrition and hydration. "Jelly Drops," a hydrating product for dementia patients, received innovation awards. A study on US Physician Orders for Life Sustaining Treatment forms highlighted inconsistent terminology for end-of-life nutrition and hydration, calling for clearer language to aid decision-making.

SUMMARY

The new hydration-related recommendations in the ESPEN 2024 guidelines for dementia reflect a more individualized, proactive, and comprehensive approach to managing hydration. These guidelines emphasize the importance of early detection, personalized interventions, and consistent monitoring to ensure that dehydration is identified and treated promptly. Furthermore, the current literature supports the need for a specific terminology for dementia management using nutrition and hydration to improve patients' health outcomes.

Swallowing and Aspiration: How to Evaluate and Treat Swallowing Disorders Associated with Aspiration Pneumonia in Older Persons

Aspiration pneumonia (AP) is the most severe complication of oropharyngeal dysphagia (OD). It is highly underdiagnosed and undertreated among older patients hospitalized with community-acquired pneumonia (CAP). Our aim is to review the state of the art in the diagnosis and treatment of swallowing disorders associated with AP. We performed a narrative review, including our experience with prior studies at Hospital de Mataró, on the diagnosis and treatment of AP. AP refers to pneumonia occurring in patients with swallowing disorders, frequently coinciding with poor oral health and vulnerability. Its main risk factors include oropharyngeal aspiration, impaired health status, malnutrition, frailty, immune dysfunction, and oral colonization by respiratory pathogens. Incidence is estimated at between 5 and 15% of cases of CAP, but it is highly underdiagnosed. Diagnostic criteria for AP have not been standardized but should include its main pathophysiological element, oropharyngeal aspiration. Recently, a clinical algorithm was proposed, based on the recommendations of the Japanese Respiratory Society, that includes aspiration risk factors and clinical evaluation of OD. To facilitate the task for health care professionals, new artificial intelligence (AI)-based screening tools for OD combined with validated clinical methods such as the volume-viscosity swallowing test (V-VST) for the detection of AP are being validated. Prevention and treatment of AP require multimodal interventions aimed to cover the main risk factors: textural adaptation of fluids and diets to avoid oropharyngeal aspiration; nutritional support to avoid malnutrition; and oral hygiene to reduce oral bacterial load. The diagnosis of AP must be based on standardized criteria providing evidence on the main etiological factor, oropharyngeal aspiration. Clinical algorithms are valid in the diagnosis of AP and the identification of its main risk factors. Combination of AI-based tools with V-VST can lead to massive screening of OD and save resources and improve efficiency in the detection of AP.

Oropharyngeal Dysphagia in Hospitalized Older Adults with Dementia: A Prospective Cohort Study

OBJECTIVE

Oropharyngeal dysphagia (dysphagia) is highly prevalent (up to 86%) in hospitalized patients with Alzheimer disease and related dementias (ADRD). This study aims to describe the management and clinical course of dysphagia in hospitalized patients with ADRD.

DESIGN

Prospective observational cohort study.

SETTING AND PARTICIPANTS

The study was conducted across 10 hospitals within a large health system in New York. Participants were older adults with ADRD admitted to the medicine service and diagnosed with dysphagia to liquids on speech-language pathologist (SLP) assessment and were recruited between January and June 2023.

METHODS

Baseline characteristics [eg, dementia Functional Assessment Staging Tool (FAST)], dysphagia management (eg, prescribed diet), and clinical course (eg, dysphagia improvement, respiratory complications) were collected.

RESULTS

Of patients with ADRD and dysphagia (n = 62), the average age was 86.5 and 66.1% were FAST Stage 7. On admission, 48.4% had pneumonia, 79.0% had delirium, and 69.4% were made nil per os (NPO) for aspiration risk. Of those who received SLP reassessment after diet initiation (n = 25), 76% demonstrated dysphagia improvement; 75% of patients with FAST stage 7 demonstrated improvement. Respiratory complications occurred in 21.0% of patients on the following diets: NPO, nasogastric tube feeding, dysphagia diets, and comfort feeds. In univariate analyses, hospital-acquired dehydration, no dysphagia improvement, and delirium were associated with respiratory complications.

CONCLUSIONS AND IMPLICATIONS

The potential for dysphagia improvement in hospitalized patients with ADRD (even those with advanced dementia) highlights the critical need for standardizing reassessment. Further studies are needed to evaluate factors associated with respiratory complications in this population.

The relationship between oropharyngeal dysphagia and dehydration in older adults

BACKGROUND

Relationship between dysphagia and dehydration has not been studied widely. The aim of this study is to determine the frequency of dysphagia and dehydration in geriatric outpatient clinic, to evaluate the relationship between these two conditions.

METHODS

The cross-sectional study included 1345 patients. Plasma osmolarity (Posm) was calculated using the following formula: [1.86 x (Na + K) + 1.15 x glucose + urea + 14]. Overt dehydration was defined as a calculated Posm of > 300 mmol/L. Eating Assessment Tool (EAT-10) score of ≥ 3 was accepted as dysphagia. Associations between dehydration and dysphagia was evaluated.

RESULTS

Mean age was 78 ± 8 years, and 71% were females. Dysphagia was observed in 27% of patients. Dysphagia was associated with a higher number of drug exposure, dependency on basic activities of daily living and geriatric depression (p < 0.05). Overt dehydration was found in 29% of patients with dysphagia, and 21% of patients with no dysphagia (p = 0.002); and dysphagia was significantly associated with overt dehydration mmol/L (OR 1.49, 95% CI 1.13-1.96, p = 0.005) after adjustments for age and sex. In another model, EAT-10 score was found as one of the independent predictors of overt dehydration (OR1.03, 95% CI 1.00-1.06, p = 0.38), along with diabetes mellitus (OR 2.32, 95% CI 1.72-3.15, p < 0.001), chronic kidney disease (OR 3.05, 95% CI 2.24-4.15, p < 0.001), and MNA score (OR 0.97, 95% CI 0.94-1.00, p = 0.031).

CONCLUSION

EAT-10 scale was independently associated with overt dehydration among older adults, as MNA score was. Correction of both dysphagia and malnutrition might improve overt dehydration to a better extent than correction either of these factors alone. Future studies are needed to test cause and effect relationships.

Clinical reasoning during dysphagia assessment and management in acute care: A longitudinal qualitative study

BACKGROUND

Competent clinical reasoning forms the foundation for effective and efficient clinical swallowing examination (CSE) and consequent dysphagia management decisions. While the nature of initial CSEs has been evaluated, it remains unclear how new information gathered by speech-language therapists (SLTs) throughout a patient's acute-care journey is integrated into their initial clinical reasoning and management processes and used to review and revise initial management recommendations.

AIMS

To understand how SLTs' clinical reasoning and decision-making regarding dysphagia assessment and management evolve as patients transition through acute hospital care from referral to discharge.

METHODS & PROCEDURES

A longitudinal, qualitative approach was employed to gather information from two SLTs who managed six patients at a metropolitan acute-care hospital. A retrospective 'think-aloud' protocol was utilized to prompt SLTs regarding their clinical reasoning and decision-making processes during initial and subsequent CSEs and patient interactions. Three types of concept maps were created based on these interviews: a descriptive concept map, a reasoning map and a hypothesis map. All concept maps were evaluated regarding their overall structure, facts gathered, types of reasoning engaged in (inductive versus deductive), types of hypotheses generated, and the diagnosis and management recommendations made following initial CSE and during subsequent dysphagia management.

OUTCOMES & RESULTS

Initial CSEs involved a rich process of fact-gathering, that was predominantly led by inductive reasoning (hypothesis generation) and some application of deductive reasoning (hypothesis testing), with the primary aims of determining the presence of dysphagia and identifying the safest diet and fluid recommendations. During follow-up assessments, SLTs engaged in increasingly more deductive testing of initial hypotheses, including fact-gathering aimed at determining the tolerance of current diet and fluid recommendations or the suitability for diet and/or fluid upgrade and less inductive reasoning. Consistent with this aim, SLTs' hypotheses were focused primarily on airway protection and medical status during the follow-up phase. Overall, both initial and follow-up swallowing assessments were targeted primarily at identifying suitable management recommendations, and less so on identifying and formulating diagnoses. None of the patients presented with adverse respiratory and/or swallowing outcomes during admission and following discharge from speech pathology.

CONCLUSIONS & IMPLICATIONS

Swallowing assessment and management across the acute-care journey was observed as a high-quality, patient-centred process characterized by iterative cycles of inductive and deductive reasoning. This approach appears to maximize efficiency without compromising the quality of care. The outcomes of this research encourage further investigation and translation to tertiary and post-professional education contexts as a clear understanding of the processes involved in reaching diagnoses and management recommendations can inform career-long refinement of clinical skills.

WHAT THIS PAPER ADDS

What is already known on the subject SLTs' clinical reasoning processes during initial CSE employ iterative cycles of inductive and deductive reasoning, reflecting a patient-centred assessment process. To date it is unknown how SLTs engage in clinical reasoning during follow-up assessments of swallowing function, how they assess the appropriateness of initial management recommendations and how this relates to patient outcomes. What this paper adds to the existing knowledge Our longitudinal evaluation of clinical reasoning and decision-making patterns related to swallowing management in acute care demonstrated that SLTs tailored their processes to each patient's presentation. There was an emphasis on monitoring the suitability of the initial management recommendations and the potential for upgrade of diet or compensatory swallowing strategies. The iterative cycles of inductive and deductive reasoning reflect efficient decision-making processes that maintain high-quality clinical care within the acute environment. What are the potential or actual clinical implications of this work? Employing efficient and high-quality clinical reasoning is a hallmark of good dysphagia practice in maximizing positive patient outcomes. Developing approaches to understanding and making explicit clinical reasoning processes of experienced clinicians may assist SLTs of all developmental stages to provide high standards of care.

Fiberoptic endoscopic evaluation of swallowing (FEES) in pediatrics: A systematic review

OBJECTIVES

The systematic review aimed to provide an overview of the state-of-art regarding the use of fiberoptic endoscopic evaluation of swallowing (FEES) in pediatrics, specifically investigating FEES feasibility, safety, diagnostic accuracy, and protocols.

METHODS

Four electronic databases were searched for original studies on the pediatric population that instrumentally assessed swallowing function using FEES. A hand-search of the references of included studies was performed. Data on the population, feasibility of endoscope insertion and bolus trials, adverse events, sensitivity and specificity, and FEES equipment and protocol were extracted. The quality of the studies was assessed using the checklists of the Johanna Briggs Institute. Selection of the studies, data extraction, and quality appraisal were conducted by two independent researchers.

RESULTS

Eighty-two reports from 81 studies were included. The mean overall quality of the studies was 80 % (17-100 %). The feasibility of endoscope insertion was high (89%-100 %), while the feasibility of bolus trials varied from 40 % to 100 %. Adverse events were excessive crying (8 studies), irritability or agitation (4 studies), transitory oxygen desaturations (3 studies, 1.2-6.7 % of the patients), epistaxis (3 studies, 0.8-3.3 % of the patients), increased heart rate (1 study, 1 patient), vomiting (1 study, 1 patient), hypertonia (1 study), and hypersalivation (1 study). No major complications were reported. Using VFSS as the reference standard, FEES was generally found to be less sensitive (25-94 %) but more specific (75-100 %) for aspiration, whereas the reverse was true for penetration (sensitivity 76-100 %, specificity 44-83 %). FEES protocols were highly heterogeneous with poor reporting.

CONCLUSION

FEES is a safe, accurate, and generally feasible examination in the pediatric population with suspected dysphagia. However, a consensus on the best FEES protocol for clinical practice and research is currently lacking.

ESPEN guideline on nutrition and hydration in dementia - Update 2024

BACKGROUND & AIMS

Dementia is accompanied by a variety of changes that result in an increased risk of malnutrition and low-intake dehydration. This guideline update aims to give evidence-based recommendations for nutritional care of persons with dementia in order to prevent and treat these syndromes.

METHODS

The previous guideline version was reviewed and expanded in accordance with the standard operating procedure for ESPEN guidelines. Based on a systematic search in three databases, strength of evidence of appropriate literature was graded by use of the SIGN system. The original recommendations were reviewed and reformulated, and new recommendations were added, which all then underwent a consensus process.

RESULTS

40 recommendations for nutritional care of older persons with dementia were developed and agreed, seven at institutional level and 33 at individual level. As a prerequisite for good nutritional care, organizations caring for persons with dementia are recommended to employ sufficient qualified staff and offer attractive food and drinks with choice in a functional and appealing environment. Nutritional care should be based on a written care concept with standardized operating procedures. At the individual level, routine screening for malnutrition and dehydration, nutritional assessment and close monitoring are unquestionable. Oral nutrition may be supported by eliminating potential causes of malnutrition and dehydration, and adequate social and nursing support (including assistance, utensils, training and oral care). Oral nutritional supplements are recommended to improve nutritional status but not to correct cognitive impairment or prevent cognitive decline. Routine use of dementia-specific ONS, ketogenic diet, omega-3 fatty acid supplementation and appetite stimulating agents is not recommended. Enteral and parenteral nutrition and hydration are temporary options in patients with mild or moderate dementia, but not in severe dementia or in the terminal phase of life. In all stages of the disease, supporting food and drink intake and maintaining or improving nutrition and hydration status requires an individualized, comprehensive approach. Due to a lack of appropriate studies, most recommendations are good practice points.

CONCLUSION

Nutritional care should be an integral part of dementia management. Numerous interventions are available that should be implemented in daily practice. Future high-quality studies are needed to clarify the evidence.

Home caregiver strategies for feeding older adults with dysphagia after dehospitalization

OBJECTIVE

To understand caregivers' strategies for offering food to older adults with oropharyngeal dysphagia after dehospitalization.

METHOD

Qualitative research carried out with caregivers of older adults with oropharyngeal dysphagia, who were discharged after hospitalization at a university hospital in Bahia. Data collection was carried out between January and February 2023 through a semi-structured interview, whose data were organized based on content analysis and analyzed with the help of IRaMuTeQ software.

RESULTS

Three categories emerged: Caregivers' strategies for safely offering food to older adults with dysphagia; Caregiver strategies for oral hygiene for older adults; Recognition of continuity of speech therapy after dehospitalization.

CONCLUSION

Caregivers' strategies for offering food to older adults with oropharyngeal dysphagia were supported by tacit knowledge and effective care in the hospital-home transition.

Therapeutic Effect on Swallowing Function and on Hydration Status of a New Liquid Gum-Based Thickener in Independently-Living Older Patients with Oropharyngeal Dysphagia

ThickenUp® Gel Express (TUGE) is a new, xanthan- and acacia-gum-based, liquid, thickening product. In independently living older adults with oropharyngeal dysphagia (OD), we assessed: (1) the rheological properties of TUGE; (2) its therapeutic effect at four viscosity levels (achieved by 5 g, 10 g, 20 g and 30 g of TUGE in water + Omnipaque X-ray contrast) versus thin liquid; and (3) the effect on hydration status and gastrointestinal tolerance after fourteen days. Shear viscosity of TUGE was measured in SI units (mPa·s at 50 s-1). The Penetration Aspiration Scale (PAS) score and the swallow response at each viscosity level was assessed with videofluoroscopy (VFS), and in the 14-day study we assessed fluid intake, hydration, and tolerance. Thickened fluids with TUGE were unaffected (-0.3%) by α-salivary amylase (α-SA). The shear viscosity values with VFS were 49.41 ± 2.38, 154.83 ± 10.22, 439.33 ± 11.72 and 672.5 ± 35.62 mPa·s. We studied 60 independently living adults (70 ± 11.4 years) with mild OD (PAS 4.1 ± 2.2, 25% aspirations). TUGE caused a shear-viscosity-dependent improvement in PAS at 150-670 mPa·s and in safety of swallow, slightly increased oral residue, did not affect pharyngeal residue and reduced time to laryngeal vestibule closure (-27%) at 670 mPa·s. Fluid intake with TUGE (1488 mL/day) was well tolerated, and hydration status improved. In conclusion, TUGE was unaffected by α-SA and strongly improved safety of swallow in a viscosity-dependent manner without affecting pharyngeal residue. Fourteen-day treatment of thickened fluids with TUGE is safe and well tolerated and improves hydration status in older adults with dysphagia.

The Adverse Effects and Events of Thickened Liquid Use in Adults: A Systematic Review

PURPOSE

Practice pattern studies suggest that liquid modification is currently a primary strategy used by speech-language pathologists to manage dysphagia; however, the breadth of negative consequences associated with their use is not well understood. The purpose of this review was to summarize the evidence on adverse events and effects of thickened liquid (TL) use in adults.

METHOD

Six databases were searched in February 2022: EMBASE, MEDLINE (PubMed), Speechbite, AMED, AgeLine, and CINAHL. Articles were included if they compared adults receiving different TL viscosities and discussed at least one adverse event or effect of consuming TLs. Articles were excluded if they were review articles, rehabilitation studies, rheological analyses, not in English, or not peer reviewed. Screening and data extraction were completed by two independent reviewers. Risk of bias was assessed using Cochrane tools.

RESULTS

Thirty-three studies (N = 4,990 participants across all studies) were eligible for inclusion (2,405 unique records screened). Reported adverse events included dehydration (n = 5), pneumonia (n = 4), death (n = 2), urinary tract infection (n = 1), and hospitalization (n = 1); adverse effects included reduced quality of life (n = 18), aspiration (n = 12), reduced intake (n = 8), increased residue (n = 4), and reduced medication bioavailability (n = 2). Results were mapped on to codes and domains of the International Classification of Functioning, Disability and Health.

CONCLUSIONS

A range of adverse outcomes associated with TL use were identified. Adverse outcomes should be monitored and reported in dysphagia research. Given current research evidence, it is vital for clinicians to weigh the risks and benefits of TL use to mitigate potential adverse outcomes.

Shear-Viscosity-Dependent Effect of a Gum-Based Thickening Product on the Safety of Swallowing in Older Patients with Severe Oropharyngeal Dysphagia

Fluid thickening is a valid therapeutic strategy for patients with oropharyngeal dysphagia (OD). The main aim of this study was to determine the therapeutic effect of the xanthan-gum-based thickener Tsururinko Quickly (TQ, Morinaga Milk Co., Tokyo, Japan) in older patients with severe OD. A total of 85 patients (83.32 ± 6.75 y) with OD and a penetration-aspiration score (PAS) of n ≥ 3 were studied by videofluoroscopy while swallowing duplicate 10 mL boluses at <50 mPa·s, 100, 200, 400, 800, and 1600 mPa·s, to assess the safety and efficacy of swallowing and the biomechanics of a swallowing response at each viscosity level. At <50 mPa·s, only 16.25% patients swallowed safely, 45% had penetrations (PAS 3-5), and 38.75% had aspirations (PAS 6-8). Fluid thickening with TQ greatly increased the prevalence of patients with safe swallowing from 62.90% at 100 mPa·s to 95.24% at 1600 mPa·s in a shear-viscosity-dependent manner. The penetrations and aspirations were significantly reduced to 3.60% and 1.19%, respectively, at 1600 mPa·s. The threshold viscosity was 100 mPa·s and the increasing viscosity above 800 mPa·s did not further improve the therapeutic effect significantly. Increasing the shear viscosity significantly reduced the time to laryngeal vestibule closure (-16.70%), increased the time to upper oesophageal sphincter opening (+26.88%), and reduced the pharyngeal bolus velocity (-31.62%) without affecting the pharyngeal residue. TQ has a strong shear-viscosity-dependent effect on the safety of swallowing in older patients with severe OD without increasing the pharyngeal residue. The therapeutic range for TQ is 100-800 mPa·s, with 200 and 800 mPa·s being the optimal doses to cover the needs of older patients with OD.

Economic Evaluation of Clinical, Nutritional and Rehabilitation Interventions on Oropharyngeal Dysphagia after Stroke: A Systematic Review

Background: Post-stroke oropharyngeal dysphagia (PS-OD) and its complications increase healthcare costs, suggesting that its appropriate management is cost-effective. We aimed to assess the efficiency of healthcare interventions in PS-OD management. Methods: A systematic review was conducted following PRISMA recommendations. Four databases were searched from inception through 30 June 2021. Outcome measures were cost-effectiveness and cost-savings of healthcare interventions. English and Spanish literature were included. Narrative and tables were used to present and synthesise evidence. Quality was evaluated using the CHEERS Statement. Results: A total of 244 studies were identified, and 10 were included. Screening and diagnosis of PS-OD studies found: (1) adjusted reduction in hospitalisation costs when assessed during the first admission day; (2) non-significant reduction in hospitalisation costs with OD management after thrombolysis; and (3) videofluoroscopy as the most cost-effective screening method (compared to bedside evaluation and a combination of both). Two studies showed cost-effective rehabilitation programmes, including OD management. Pelczarska et al. showed an incremental cost–utility ratio of texture-modified diets using a gum-based thickener of 20,977 PLN (4660€) following a dynamic model, and Kotecki et al. commercially prepared thickened fluids that were 44% to 59% less expensive than in situ prepared fluids. Elia et al. showed home enteral nutrition was cost-effective (£12,817/QALY), and Beavan et al. showed higher nutrient intake and low increase in hospitalisation costs using looped-nasogastric tubes (£5.20 for every 1% increase). Heterogeneity between studies precluded a quantitative synthesis. Conclusions: Included studies suggest that healthcare interventions aiming to prevent OD complications are cost-effective. However, studies assessing novel strategies are needed.

Dysphagia and its association with other health-related risk factors in institutionalized older people: A systematic review

BACKGROUND

Dysphagia is considered a geriatric syndrome that is characterized by inability to or difficulty in safely and effectively forming or moving the food bolus toward the esophagus. This pathology is very common and affects approximately 50% of institutionalized older people. Dysphagia is often accompanied by high nutritional, functional, social, and emotional risks. This relationship implies a higher rate of morbidity, disability, dependence, and mortality in this population. This review is aimed at studying the relationship between dysphagia and different health-related risk factors in institutionalized older people.

METHOD

We conducted a systematic review. The bibliographic search was performed in the Web of Science, Medline, and Scopus databases. Data extraction and methodological quality were evaluated by two independent researchers.

RESULTS

Twenty-nine studies met the inclusion and exclusion criteria. A clear relationship between the development and progression of dysphagia and a high nutritional, cognitive, functional, social, and emotional risk in institutionalized older adults was found.

CONCLUSIONS

There is an important relationship between these health conditions that shows the need for research and new approaches to considerations such as their prevention and treatment as well as the design of protocols and procedures that will help reduce the percentage of morbidity, disability, dependence, and mortality in older people.

Characteristics and Therapeutic Needs of Older Patients with Oropharyngeal Dysphagia Admitted to a General Hospital

BACKGROUND

Oropharyngeal dysphagia (OD) is a prevalent geriatric syndrome causing severe nutritional and respiratory complications.

OBJECTIVE

We aimed to describe the characteristics and therapeutic needs of older patients with OD admitted to a general hospital.

DESIGN, PARTICIPANTS AND MEASUREMENTS

Prospective cohort study with patients (≥70 years) with OD consecutively admitted to a general hospital. OD was clinically assessed with the Volume-Viscosity Swallowing Test and nutritional status with the Mini Nutritional Assessment-short form. Oral health (OH) and periodontal diseases were evaluated by dentists. Functionality, frailty, sarcopenia, comorbidities, dehydration, quality of life (QoL) and mortality were also assessed.

RESULTS

We included 235 patients (87.3±5.5 years) with OD hospitalized for acute diseases (9.6±7.6 days). On admission, they had low functionality (Barthel: 51.3±25.1), frailty (Fried: 3.9±0.9; Edmonton: 10.3±2.7, 87.2-91.1% frail) and high comorbidities (Charlson: 3.7±2.0). Moreover, 85.1% presented signs of impaired safety and 84.7% efficacy of swallow. Up to 48% required fluid adaptation with a xanthan gum-based thickener (89.4% at 250 mPa·s; 10.6% at 800 mPa·s) and 93.2% a texture-modified diet (TMD) (74.4%, fork-mashable; 25.6%, pureed). A total of 98.7% had nutritional risk, 32.3% sarcopenia and 75.3% dehydration. OH was moderate (Oral Hygiene Index-simplified: 2.0±1.3) and 67.4% had periodontitis. QoL self-perception was 62.2% and 5.5% of patients died during hospitalization.

CONCLUSION

Hospitalized older OD patients have impaired safety of swallow, frailty, malnutrition, dehydration, low functional capacity and poor OH and high risk of respiratory infections. They need a multimodal intervention including fluid thickening, TMD, thickened oral nutritional supplementation and OH care to improve health status and reduce OD-associated complications.