Estudo clínico e videofluoroscópico da disfagia na fase subaguda do acidente vascular encefálico

Clinical swallowing assessment in the diagnosis of silent aspiration

ABSTRACT Purpose: to identify, in the clinical assessment of swallowing, signs indicating silent aspiration in ischemic stroke patients. Methods: forty-six patients were assessed, 17 days being the mean time elapsed from the stroke to the swallowing assessment. The clinical assessment encompassed structural and functional aspects, oximetry monitoring, and cervical auscultation. During the videofluoroscopy examination, the patients were also monitored with pulse oximetry. In both assessments, the patients were given 100 ml of liquid. In the statistical analysis, the exact logistic regression test and odds ratio calculation were used, with a 0.05 significance level. Results: seven, out of the 46 patients, presented aspiration, which was silent in six of them. Change in the cervical auscultation, in the clinical assessment (OR: 18.8; 95% CI: 1.2 - 1000, p = 0.03), was associated with silent aspiration, as detected in the videofluoroscopy. The hawking present in the analysis of the recording (OR: 12.2; 95% CI: 1.23 - ∞, p = 0.03), was associated with possible non-silent laryngotracheal penetrations and aspirations. No change was identified regarding oxygen saturation in patients presented with silent aspiration. Conclusion: the change in cervical auscultation observed in the clinical assessment can indicate silent aspiration in patients affected by an ischemic stroke.

Swallowing progression during the acute phase of cortical and subcortical ischemic stroke and its association with the extension of brain damage and cognitive impairment

Objective: To assess swallowing progression and its association with the extension of brain damage and cognitive impairment during the acute phase of ischemic stroke. Methods: Cross-sectional, observational study with 50 patients, who were admitted to a Stroke Unit with cerebral ischemia, with a maximum stroke time of 24 h. The following clinical tools were used: National Institutes of Health Stroke Scale, Mini-Mental State Examination, Frontal Battery Assessment, and the Alberta Stroke Program Early CT Score for neuroimaging. The Gugging Swallowing Screen and the Functional Oral Intake Scale were used to assess swallowing. The patients were assessed at three different time-points: at hospital admission, after 72 h of hospitalization, and at hospital discharge. Results: The mean age of patients was 65.5 years. The frequency of dysphagic patients was 50.0%, 18.0%, and 12.0% at admission, after 72 h of hospitalization, and at discharge, respectively. Scores on the Frontal Battery Assessment and the Alberta Stroke Program Early CT Score were associated with dysphagia progression. Conclusion: Dysphagia is a common complication in the acute phase of stroke, and is associated with the extension of brain damage and cognitive impairment.

Dysphagia and Associated Pneumonia in Stroke Patients from Brazil: A Systematic Review

Dysphagia and its associated complications are expected to be relatively more frequent in stroke patients in Brazil than in similar patients treated in developed countries due to the suboptimal stroke care in many Brazilians medical services. However, there is no estimate of dysphagia and pneumonia incidence for the overall stroke population in Brazil. We conducted a systematic review of the recent literature to address this knowledge gap, first screening citations for relevance and then rating full articles of accepted citations. At both levels, judgements were made by two independent raters according to a priori criteria. Fourteen accepted articles underwent critical appraisal and data extraction. The frequency of dysphagia in stroke patients was high (59% to 76%). Few studies assessed pneumonia and only one study stratified patients by both dysphagia and pneumonia, with an increased Relative Risk for pneumonia in patients with stroke and dysphagia of 8.4 (95% CI 2.1, 34.4). Across all articles, we identified bias related to: heterogeneity in number and type of stroke; no rater blinding; and, assessments that were not reproducible, reliable or validated. Despite the high frequency of dysphagia and associated pneumonia in stroke patients in Brazil, the quality of the available literature is low and that there is little research focused on these epidemiologic data. Future rigorously designed studies are in dire need to accurately determine dysphagia incidence and its impact on stroke patients in Brazil. These data will be critical to properly allocate limited national resources that maximize the quality of stroke care.

Frequency and factors associated with dysphagia in stroke

PURPOSE

To investigate the frequency of dysphagia in acute stroke and the possible associated clinical and sociodemographic features.

METHOD

A cross-sectional study was performed including 100 stroke patients who were admitted to the Minas Gerais Regional Public Hospital. Sociodemographic and clinical data were collected, and the patients underwent clinical evaluation through the Gugging Swallowing Screen (GUSS).

RESULTS

The frequency of dysphagia was 50%, and most patients had severe swallowing disorders. Only a previous history of stroke was associated with dysphagia (p=0.02). Other sociodemographic and clinical variables were not associated with dysphagia, suggesting that the location and the pathophysiology of stroke did not influence its occurrence and severity.

CONCLUSION

The frequency of dysphagia after stroke is high, being a previous stroke an important risk factor for subsequent stroke.

Evolução da deglutição no pós-AVC agudo: estudo descritivo

RESUMO Objetivo: analisar a evolução da deglutição de pacientes após acidente vascular cerebral. Métodos: trata-se de estudo exploratório descritivo com amostra não probabilística em que foram acompanhados 100 pacientes admitidos com o diagnóstico de acidente vascular cerebral no Hospital Público Regional de Betim. Os pacientes foram submetidos à avaliação fonoaudiológica estruturada em dois momentos: nas primeiras 48 horas após acidente vascular cerebral e no momento da alta hospitalar. Utilizou-se a escala Gugging Swallowing Screen que é um instrumento padronizado e validado para ser utilizado na beira do leito. Resultados: na avaliação fonoaudiológica inicial, a frequência da disfagia foi de 52%, sendo que 28% dos pacientes foram classificados como disfagia grave com alto risco de aspiração. A média de tempo entre a avaliação inicial da deglutição e a do momento da alta hospitalar foi de 22,1 dias. Na alta, apenas 2,1% dos pacientes ainda apresentavam disfagia grave. Observou-se mudança do perfil de deglutição do paciente de acordo com a gravidade da disfagia e da consistência da dieta oral. Conclusão: a frequência de disfagia após acidente vascular cerebral é alta, mas há progressiva mudança no perfil de deglutição do paciente durante o período de internação.

Disfagia orofaríngea neurogênica: análise de protocolos de videofluoroscopia brasileiros e norte-americanos

Resumo: Este artigo tem por objetivo analisar e comparar o uso de protocolos brasileiros e norte-americanos para videofluoroscopia da deglutição em pacientes com histórico de acidente vascular encefálico. Trata-se de uma revisão bibliográfica de artigos brasileiros e norte-americanos. Foram selecionados artigos com descrição de procedimentos para videofluoroscopia da deglutição em sujeitos que sofreram acidente vascular encefálico, publicados entre 2003 e 2013. Os procedimentos descritos para realização de videofluoroscopias foram analisados de forma quantitativa e qualitativa. Consideraram-se as variáveis: posicionamento para o exame, consistências e quantidades de oferta de bolo, tipos de utensílios e utilização de protocolos Foram encontrados 16 artigos que atenderam aos critérios supracitados, sendo nove (56,25%) norte-americanos e sete (43,75%) brasileiros. Observou-se que quatro dos estudos nacionais (57,14%) não relatam as quantidades oferecidas, enquanto todos os artigos norte-americanos detalharam as quantidades, que variaram entre 2 e 15 mL; os tipos de alimento e suas consistências foram detalhadas em todos os estudos nacionais e norte-americanos, porém os nacionais o fizeram de forma genérica, sem identificação dos alimentos. Quanto à posição do paciente durante o exame, 57,14% dos artigos nacionais não relataram e todos os artigos norte-americanos o fizeram. Os utensílios para oferta do bolo são citados em 55,55% dos artigos norte-americanos e em apenas 14,28 % dos nacionais. Quanto à utilização de protocolos para avaliação 33% dos estudos norte-americanos não os citam, comparados aos 71,42% dos nacionais. Observou-se a necessidade de padronização dos procedimentos e terminologias utilizadas na videofluoroscopia da deglutição, de modo a facilitar a intercompreensão e reprodutibilidade dos estudos.

Correlation between the reason for referral, clinical, and objective assessment of the risk for dysphagia

PURPOSE

To correlate the reason for referral to speech therapy service at a university hospital with the results of clinical and objective assessment of risk for dysphagia.

METHODS

This is a cross-sectional, observational, retrospective analytical and quantitative study. The data were gathered from the database, and the information used was the reason for referral to speech therapy service, results of clinical assessment of the risk for dysphagia, and also from swallowing videofluoroscopy.

RESULTS

There was a mean difference between the variables of the reason for the referral, results of the clinical and objective swallowing assessments, and scale of penetration/aspiration, although the values were not statistically significant. Statistically significant correlation was observed between clinical and objective assessments and the penetration scale, with the largest occurring between the results of objective assessment and penetration scale.

CONCLUSION

There was a correlation between clinical and objective assessments of swallowing and mean difference between the variables of the reason for the referral with their respective assessment. This shows the importance of the association between the data of patient's history and results of clinical evaluation and complementary tests, such as videofluoroscopy, for correct identification of the swallowing disorders, being important to combine the use of severity scales of penetration/aspiration for diagnosis.

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.

Eficácia da fonoterapia em disfagia neurogênica usando a escala funcional de ingestão por via oral (FOIS) como marcador

OBJETIVO: avaliar a eficácia da fonoterapia e a interferência dos fatores de risco para disfagia no atendimento de pacientes adultos internados com doença neurológica e sintoma de disfagia, tendo a escala funcional de ingestão por via oral como marcador da progressão segura da dieta por via oral. MÉTODOS: foi realizado estudo retrospectivo de 49 prontuários de pacientes com disfagia neurogênica, atendidos em fonoterapia no leito hospitalar e comparada a escala de ingestão de alimentação por via oral antes e depois da terapia - FOIS, (mede a quantidade e tipo de alimento que o paciente consegue ingerir por via oral de forma segura). Foram estudados também possíveis fatores de interferência na melhora via ingestão oral na fonoterapia como: doença de base, idade, condições respiratórias, condições clínicas, estado de consciência, tempo de terapia e número de sessões. RESULTADOS: dos 49 pacientes, 36 apresentaram melhora na FOIS após a fonoterapia. Quanto aos possíveis fatores de interferência nessa melhora, foram constatados: a piora clínica do doente, as intercorrências clínicas e o rebaixamento do nível de consciência, como estatisticamente significantes para a não evolução em fonoterapia visando à ingestão de alimentos por via oral. Os outros fatores analisados como: doença de base, idade, condições respiratórias, tempo e numero de sessões não demonstraram significância estatística, sugerindo não interferir na melhora ou piora do paciente. CONCLUSÃO: observa-se melhora efetiva da ingestão de alimentos por via oral nos pacientes com disfagia neurogênica atendidos em ambiente hospitalar em fonoterapia, salvo se apresentarem intercorrências clínicas e rebaixamento do nível de consciência durante o processo.