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1.
Braz J Otorhinolaryngol ; 90(5): 101453, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38991403

RESUMO

OBJECTIVE: Due the lack of data on the treatment of Vascular Vertigo and Dizziness, this study aimed to report how we managed and treated those outpatients according to the recently introduced American Heart Association and Stroke Association guidelines. METHODS: We conducted a longitudinal case series from May 2022 to February 2023. We included patients who met the Bárány Society's Vascular Vertigo and Dizziness classification and were eligible for therapy in accordance with the American Heart Association and Stroke Association guidelines, featuring aspects of the stroke group and transient attack group. RESULTS: Overall, 41 patients (51.2% female; median age 72 years) were enrolled; 10 (24.3%) had ischemic strokes, 30 (73.1%) had transient ischemic attack, and 1 (2.4%) had a probable isolated labyrinthine infarction. The patients received dual antiplatelet (48.7%), single antiplatelet therapy (48.7%), and anticoagulant therapy (2.4%). No new crises occurred in 95.2% of the patients, and the transient ischemic attack group showed a significant decrease in discomfort from imbalance on the visual analog scale. CONCLUSIONS: Antiplatelets and anticoagulants are safe and effective in treating Vascular Vertigo and Dizziness as they prevent new ischemic events and increase the flow of the posterior circulation, reducing vertigo/dizziness attacks and imbalance complaints.


Assuntos
Anticoagulantes , Tontura , Inibidores da Agregação Plaquetária , Vertigem , Humanos , Tontura/etiologia , Feminino , Masculino , Idoso , Vertigem/etiologia , Inibidores da Agregação Plaquetária/uso terapêutico , Pessoa de Meia-Idade , Anticoagulantes/uso terapêutico , Pacientes Ambulatoriais , Idoso de 80 Anos ou mais , Estudos Longitudinais , Ataque Isquêmico Transitório/complicações , AVC Isquêmico/complicações , AVC Isquêmico/tratamento farmacológico
2.
Braz J Otorhinolaryngol ; 90(5): 101441, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38834014

RESUMO

OBJECTIVE: Dizziness or vertigo in older population frequently presents in clinical settings, yet its etiology remains elusive. The objective of this study was to delineate global trends and identify frontiers in research concerning dizziness or vertigo among older population. METHODS: We searched the research literature published from 2003 to 2022 on older population with dizziness or vertigo using two databases from the Web of Science Core Collection. A bibliometric and visualization analysis was conducted. Bibliometric tools facilitated co-authorship, co-citation, and keyword co-occurrence analyses, encompassing countries or regions, institutions, authors, journals, and references. RESULTS: The analysis included 1322 publications authored by 6524 individuals from 2244 institutions across 67 countries or regions, spanning 92 subject categories. A steady increase in publications was noted from 2003 to 2022. The University of Munich, Harvard University, and the University of California System emerged as leading institutions with the highest publication outputs. The United States, Germany, and China were predominant in publication counts. Eva Grill was identified as the most prolific author. Otology & Neurotology and Geriatrics & Gerontology emerged as the most prolific journal and subject category, respectively. The most prevalent keywords were "dizziness", "vertigo", "falls", and "geriatric", with "management", "gait", and "association" recognized as the principal research hotspots. CONCLUSION: This study provides a systematic analysis of global scientific research on older population dizziness/vertigo, revealing significant advancements in understanding over the past two decades. Management, gait, and association have emerged as the primary research focuses on recent years. These findings offer valuable insights for directing current research efforts to capture prevailing trends and explore new frontiers in this field.


Assuntos
Bibliometria , Tontura , Vertigem , Humanos , Idoso , Saúde Global , Pesquisa Biomédica/tendências , Pesquisa Biomédica/estatística & dados numéricos
3.
Braz J Otorhinolaryngol ; 90(3): 101393, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38350404

RESUMO

OBJECTIVE: To investigate whether additional Cognitive Behavior Therapy (CBT) combined with conventional therapy improves outcomes for patients with Persistent Postural-Perceptual Dizziness (PPPD) compared with conventional therapy alone. METHODS: Two reviewers independently searched PubMed, Embase, Web of Science, Cochrane Library, and ClinicalTrials.gov for relevant Randomized Controlled Trials (RCTs) examining CBT for PPPD which were conducted and published in English from January 2002 to November 2022. RCTs reporting any indicators for assessing corresponding symptoms of PPPD were included, such as Dizziness Handicap Inventory (DHI), Hamilton Anxiety Scale (HAMA), Hamilton Depression Scale (HAMD), Hospital Anxiety and Depression Scale (HADS), and Patient Health Questionnaire-9 (PHQ-9). Two independent reviewers conducted extraction of relevant information and evaluation of risk of bias. The Cochrane Collaboration risk of bias tool version 1.0 was used to evaluate risks and assess the quality of the included studies, and Cochrane Review Manager 5.3 software (RevMan 5.3) was used to perform meta-analyses. RESULTS: The results of six RCTs indicated that combining additional CBT with conventional therapy significantly improved outcomes for PPPD patients compared with conventional therapy alone, especially in DHI-Total scores (Mean Difference [MD = -8.17], 95% Confidence Interval [95% CI: -10.26, -6.09], p < 0.00001), HAMA scores (MD = -2.76, 95% CI: [-3.57, -1.94], p < 0.00001), GAD-7 scores (MD = -2.50, 95% CI [-3.29, -1.70], p < 0.00001), and PHQ-9 scores (MD = -2.29, 95% CI [-3.04, -1.55], p < 0.00001). Subgroup analysis revealed a significant benefit of additional CBT compared with conventional therapies alone, including Vestibular Rehabilitation Therapy (VRT) (MD = -8.70, 95% CI: [-12.17, -5.22], p < 0.00001), Selective Serotonin Reuptake Inhibitor (SSRI) (with controlled SSRI: MD = -10.70, 95% CI: [-14.97, -6.43], p < 0.00001), and VRT combined with SSRI (MD = -6.08, 95% CI [-9.49, -2.67], p = 0.0005) in DHI-Total scores. CONCLUSION: Additional CBT combined with conventional therapy may provide additional improvement for patients with PPPD compared with conventional therapy alone. However, more RCTs are needed to support and guide the application of CBT in treating PPPD. LEVEL OF EVIDENCE: I; Systematic review of RCTs.


Assuntos
Terapia Cognitivo-Comportamental , Tontura , Ensaios Clínicos Controlados Aleatórios como Assunto , Humanos , Terapia Cognitivo-Comportamental/métodos , Tontura/terapia , Resultado do Tratamento
4.
Braz J Otorhinolaryngol ; 90(2): 101378, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38219445

RESUMO

OBJECTIVES: When air irrigation is used for caloric stimulation in patients with a perforated ear, warm irrigation may elicit a nystagmus that initially beats in the opposite direction of what is expected for warm irrigations, which is referred to as "caloric inversion". This study aimed to investigate the disease group in which caloric inversion appeared in patients who underwent caloric testing and to classify the patterns of caloric inversion. METHODS: We conducted a retrospective review of bithermal caloric test results that were collected in our dizziness clinic between 2005 and 2022. Caloric inversion was defined when nystagmus induced by caloric stimulation appeared in the opposite direction to that expected. The incidence of caloric inversion among all patients who underwent bithermal caloric tests was calculated. To confirm the clinical diagnoses of the patients with caloric inversion, their clinical records were reviewed. RESULTS: Out of 9923 patients who underwent bithermal caloric tests, 29 patients (0.29%) showed a caloric inversion. The most common clinical diagnosis was chronic otitis media (21 of 29, 72%). Of the 21 patients with chronic otitis media, 20 patients showed a caloric inversion by warm air irrigation and one patient showed caloric inversion by cold air stimulation. Patients with clinical diagnoses other than chronic otitis media such as sudden sensorineural hearing loss, benign paroxysmal vertigo of childhood and recurrent vestibulopathy showed caloric inversion by warm air irrigation. Caloric inversion by warm water irrigation was observed in patients with lateral semicircular canal cupulopathy and recurrent vestibulopathy. Two patients (one with Meniere's disease and one with age-related dizziness) showed caloric inversion by cold water irrigation. CONCLUSION: Caloric inversion can be observed in various diseases other than chronic otitis media with tympanic membrane perforation. Special care should be taken in the interpretation of caloric test results. LEVEL OF EVIDENCE: Level 4.


Assuntos
Otite Média , Neuronite Vestibular , Humanos , Tontura , Testes Calóricos/métodos , Vertigem Posicional Paroxística Benigna , Otite Média/diagnóstico , Doença Crônica , Água
5.
Am J Case Rep ; 25: e941558, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38163945

RESUMO

BACKGROUND Superior semicircular canal dehiscence is an inner-ear pathology which presents with vertigo, disequilibrium, and hearing loss. Although the exact etiology of superior semicircular canal dehiscence is unknown, it is thought that an increase in middle-ear pressure disrupts a thin overlying temporal bone. Superior semicircular canal dehiscence is frequently seen in association with dehiscence of the tegmen tympani, which overlies the middle ear. Here, we present a case report of a 52-year-old Puerto Rican man with vertigo, dizziness, vomiting, and mild hearing loss associated with superior semicircular canal and tegmen tympani dehiscence after performing improper scuba diving techniques. CASE REPORT A 52-year-old Puerto Rican man presented to the emergency department with vertigo, dizziness, vomiting, and mild hearing loss in the right ear. The symptoms began shortly after scuba diving with inadequate decompression techniques on ascent. He was treated with recompression therapy with mild but incomplete improvement in symptoms. Bilateral temporal magnetic resonance imaging was suggestive of segmental dehiscence of the right superior semicircular canal and tegmen tympani. High-resolution computed tomography of the temporal bone confirmed right superior semicircular canal and tegmen tympani dehiscence with an intact left inner ear. CONCLUSIONS The increased inner-ear pressure that occurs during scuba diving can lead to dehiscence of the superior semicircular canal and tegmen tympani, causing vertigo and hearing loss. Performance of improper diving techniques can further increase the risk of dehiscence. Therefore, appropriate radiologic evaluation of the inner ear should be performed in such patients.


Assuntos
Mergulho , Perda Auditiva , Deiscência do Canal Semicircular , Masculino , Humanos , Pessoa de Meia-Idade , Tontura/complicações , Tontura/patologia , Deiscência do Canal Semicircular/complicações , Deiscência do Canal Semicircular/patologia , Mergulho/efeitos adversos , Canais Semicirculares/diagnóstico por imagem , Orelha Média/diagnóstico por imagem , Vertigem/etiologia , Vertigem/patologia , Perda Auditiva/complicações , Perda Auditiva/patologia , Vômito
6.
Int J Audiol ; 63(4): 242-249, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36803034

RESUMO

OBJECTIVE: This study aimed to determine the prevalence of dizziness and its associated factors in patients with COM at two otologic referral centres in a middle-income country. DESIGN: Cross-sectional study. Adults with and without COM diagnosis from two otology-referral centres in Bogotá (Colombia) were included. Dizziness and quality of life were assessed using the "Chronic Suppurative Otitis Media Questionnaire-12" (COMQ-12), and sociodemographic questionnaires were applied. Otoscopic evaluation and audiometric data were collected. STUDY SAMPLE: A total of 231 adults. RESULTS: Of the 231 participants, up to 64.5% (n = 149) reported at least mild inconvenience due to dizziness. Factors associated with dizziness included female sex (aPR: 1.23; 95% CI: 1.04-1.46), chronic suppurative otitis media (aPR: 3.02; 95% CI: 1.21-7.52), and severe tinnitus (aPR: 1.75; 95% CI: 1.24-2.48). An interaction was found between socioeconomic status and educational level, with more frequent reports of dizziness in the middle/high economic status and secondary education (aPR: 3.09; 95% CI: 0.52-18.55; p < 0.001). Differences of 14 points in symptom severity and 18.5 points in the total score of the COMQ-12 were found between the groups with dizziness and without dizziness. CONCLUSIONS: Dizziness was frequent in patients with COM and was associated with severe tinnitus and quality of life deterioration.


Assuntos
Otite Média Supurativa , Otite Média , Zumbido , Adulto , Humanos , Feminino , Otite Média Supurativa/diagnóstico , Tontura , Estudos Transversais , Colômbia/epidemiologia , Qualidade de Vida , Otite Média/complicações , Otite Média/diagnóstico , Otite Média/epidemiologia , Vertigem , Doença Crônica , Inquéritos e Questionários
7.
Codas ; 35(6): e20220176, 2023.
Artigo em Português, Inglês | MEDLINE | ID: mdl-38055412

RESUMO

PURPOSE: To determine the internal consistency and reliability of the "Questionário de Impacto Emocional da Vertigem (CIEV)" and to validate the instrument with respect to the Dizziness Handicap Inventory (DHI) in a sample of individuals with balance disorders. METHODS: 38 subjects participated in the study, males and females, aged from 23 to 85 years, who presented dizziness, vertigo, and/or falls complaints and attended to the Vestibular Disorders clinic at the University Hospital. Individuals with hearing complaints and/or tinnitus unrelated to dizziness, previous psychiatric comorbidities, and/or cognitive impairments were excluded. We performed an anamnesis and collected complementary data from the medical records. After that, the self-perception questionnaires, DHI, and CIEV, were applied. Statistical analysis was performed in which the Cronbach's alpha verified the internal consistency of the CIEV. Reliability and validity of the CIEV related to the DHI were calculated using Intraclass Correlation Index (ICC) and Pearson's correlation test, respectively. RESULTS: There was a statistically significant correlation between the scores obtained, for both reliability and validation analysis (p<0.001). The mean ICC showed a moderate correlation between the total scores (0.695) and a strong correlation with the physical, emotional, and functional DHI domains (0.706 to 0.869), being the emotional aspect the highest degree (0.869). Pearson's correlation showed strong correlation between the total scores (r=0.820) and varied from moderate to strong, with strongest correlations to the DHI emotional domain (r=0.788). CONCLUSION: The outcomes illustrate important contribution to validation parameters to consider clinical use of the CIEV in the Brazilian population, aiming to identify emotional aspects in patients with balance disorders.


OBJETIVO: Determinar a consistência interna e confiabilidade do "Questionário de Impacto Emocional da Vertigem-CIEV" e validar o instrumento em relação ao Dizziness Handicap Inventory (DHI), em uma amostra de pacientes com distúrbio do equilíbrio corporal. MÉTODO: Participaram 38 sujeitos, idades entre 23 e 85 anos, ambos os sexos, com queixas relacionadas à tontura, desequilíbrios e/ou quedas, atendidos em um ambulatório de Otoneurologia do Hospital Universitário. Foram excluídos sujeitos com queixas auditivas e/ou zumbido sem tontura associada, comorbidades psiquiátricas prévias e/ou comprometimento cognitivo que impedisse a compreensão dos questionários. Foi realizada anamnese, levantamento de prontuário para caracterização da amostra e aplicados os questionários de autopercepção, DHI e CIEV. O alfa de Cronbach verificou a consistência interna do CIEV e a confiabilidade e validade do CIEV em relação ao DHI foram calculadas pelo Índice de Correlação intraclasse (ICC) e teste de Correlação de Pearson, respectivamente. RESULTADOS: Houve correlação estatisticamente significante entre os escores obtidos, tanto à análise de confiabilidade quanto de validação (p<0,001). O ICC médio demonstrou moderada correlação para o escore total (0,695) e forte correlação com os domínios físico, emocional e funcional do DHI (0,706 a 0,869) sendo o maior grau para o domínio emocional (0,869). A Correlação de Pearson demonstrou grau forte para o escore total (r=0,820) e variação de moderado a forte para os domínios, com melhor resultado também para o domínio emocional do DHI (r=0,788). CONCLUSÃO: Os achados representam parâmetros importantes de contribuição para a validação do CIEV para uso clínico na população brasileira, direcionado para a identificação de aspectos emocionais em pacientes com distúrbios do equilíbrio corporal.


Assuntos
Avaliação da Deficiência , Tontura , Masculino , Feminino , Humanos , Brasil , Reprodutibilidade dos Testes , Vertigem/diagnóstico , Inquéritos e Questionários , Idioma
8.
Distúrbios Comun. (Online) ; 35(4): e63695, 31/12/2023.
Artigo em Inglês, Português | LILACS | ID: biblio-1552998

RESUMO

Introdução: A migrânea é um tipo de cefaleia primária incapacitante que, quando associada a crises de vertigem, configura-se migrânea vestibular. Objetivo: Verificar quais as principais manifestações clínicas da migrânea vestibular em adolescentes. Métodos: Trata-se de uma revisão integrativa da literatura, cujas buscas foram executadas nas bases de dados eletrônicas PubMed/Medline, Scientific Electronic Library Online (SciELO), e Portal da Biblioteca Virtual em Saúde (BVS), em junho de 2022. Foram incluídas publicações entre o ano 2012 e o mês de junho de 2022; estudos observacionais e ensaios clínicos envolvendo seres humanos, nos quais o objetivo fosse avaliar indivíduos com idades entre 12 e 19 anos com diagnóstico de migrânea vestibular e verificar suas principais manifestações clínicas nessa população. Resultados: Todos os estudos mencionaram um maior percentual de meninas nas amostras, porém a diferença entre os sexos para os diferentes diagnósticos não foi avaliada em todas as pesquisas. Conclusão: Verificou-se, com a presente revisão, que as manifestações clínicas da migrânea na adolescência são semelhantes às da população adulta. (AU)


Introduction: Migraine is a disabling type of primary headache that, when associated with vertigo attacks, constitutes vestibular migraine. Objective: To investigate the main clinical findings of vestibular migraine in adolescents. Methods: This is an integrative literature review, with searches conducted in the electronic databases PubMed/Medline, Scientific Electronic Library Online (SciELO), and the Virtual Health Library Portal (BVS) in June 2022. Publications from the year 2012 to June 2022 were included; observational studies and clinical trials involving human subjects, in which the objective was to assess individuals aged 12 to 19 years diagnosed with vestibular migraine and investigate their main clinical findings in this population. Results: All studies mentioned a higher percentage of girls in the samples; however, the difference between sexes for different diagnoses was not assessed in all studies. Conclusion: With this review, it was found that the clinical findings of migraine in adolescence are similar to those in the adult population. (AU)


Introducción: La migraña es em tipo de dolor de cabeza adolescente incapacitante que, cuando se dolesc em ataques de vértigo, constituye la migraña vestibular. Objetivo: Investigar las principales manifestaciones clínicas de la migraña vestibular em adolescentes. Métodos: Se trata de em revisión integradora de la literatura, em búsquedas realizadas em las bases de datos electrónicas PubMed/Medline, Scientific Electronic Library Online (SciELO) y el Portal de la Biblioteca Virtual em Salud (BVS) em junio de 2022. Se incluyeron publicaciones desde el año 2012 hasta junio de 2022; dolescê observacionales y ensayos clínicos que involucraran a sujetos humanos, en los cuales el objetivo fuera evaluar adolescentes de 12 a 19 años en diagnóstico de migraña vestibular e investigar sus principales manifestaciones clínicas em esta población. Resultados: Todos los adolescentes mencionaron en mayor porcentaje de niñas en las muestras; sin embargo, la diferencia entre los sexos para diferentes diagnósticos no fue evaluada en todos los adolescentes. Conclusión: En esta revisión, se descobrió que las manifestaciones clínicas de la migraña en la dolescência son similares a las de la población adulta. (AU)


Assuntos
Humanos , Adolescente , Transtornos de Enxaqueca/fisiopatologia , Vertigem , Adolescente , Tontura
9.
Rev. otorrinolaringol. cir. cabeza cuello ; 83(4): 339-345, dic. 2023. ilus
Artigo em Espanhol | LILACS | ID: biblio-1560347

RESUMO

Introducción: El mareo postural perceptual persistente (MPPP) es una de las causas más frecuentes de vértigo crónico. Si bien, los pacientes con MPPP tienen alteraciones de la percepción espacial, se desconoce si presentan alteraciones en el miedo a las alturas. Para no exponer a pacientes con MPPP a ambientes reales con altura, nos propusimos utilizar la realidad virtual para estudiar el miedo a las alturas. Objetivo: Cuantificar el miedo a las alturas en pacientes con MPPP y controles mediante ambientes simulados con realidad virtual. Material y Método: Estudio transversal, prospectivo de casos y controles pareados por edad y sexo. Se reclutaron pacientes con MPPP del Servicio de Otorrinolaringología del Hospital Clínico de la Universidad de Chile entre los años 2020 y 2021. Se midió presencia subjetiva de miedo y taquicardia. Los escenarios se desarrollaron con el programa Blender 2.8 y Oculus Link para equipo Oculus Quest. Se utilizaron cinco escenarios a diferentes alturas (pisos 1, 3, 6, 12, 19). Resultados: Se reclutaron 20 sujetos (12 mujeres, 47 años en promedio), incluyendo 10 pacientes con MPPP y 10 controles sin síntomas vestibulares. Ningún sujeto del grupo control presentó miedo en los escenarios presentados, mientras que siete pacientes del grupo MPPP tuvieron miedo subjetivo a una altura menor a 40 metros virtuales (Fischer, p < 0,05). Conclusión: Los pacientes con MPPP presentan, con mayor frecuencia, miedo subjetivo a las alturas que los controles, pero se requiere de nuevos estudios para determinar si este miedo es específico de MPPP, o es general a otras causas de vértigo crónico.


Introduction: Persistent Postural Perceptual Dizziness (PPPD) is one of the most common causes of chronic vertigo. While patients with PPPD have spatial perception alterations, it is unknown whether they present alterations in fear of heights. To avoid exposing patients with PPPD to high places, we aimed to use virtual reality to quantify fear of heights. Aim: To quantify fear of heights in patients with PPPD and controls using simulated environments with virtual reality. Material and Method: A prospective cross-sectional study of age- and sex-matched case-control pairs. PPPD patients were recruited from the Otolaryngology Service of the Clinical Hospital of the University of Chile between 2020 and 2021. Presence of subjective fear and tachycardia were measured. The scenarios were developed using Blender 2.8 and Oculus Link for the Oculus Quest. Five scenarios at different heights (floors 1, 3, 6, 12, 19) were used. Results: Twenty subjects were recruited (12 women, average age of 47 years), including 10 PPPD patients and 10 controls without vestibular symptoms. None of the control group subjects presented fear in the presented scenarios, while seven patients in the PPPD group had subjective fear at a height lower than virtual 40 meters (Fischer, p < 0.05). Conclusion: Patients with PPPD present a greater proportion of subjective fear to heights than controls, but further studies are required to determine if this fear is specific to PPPD or is general to other causes of chronic vertigo.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Adulto Jovem , Postura/fisiologia , Vertigem/fisiopatologia , Tontura/fisiopatologia , Realidade Virtual , Percepção de Movimento/fisiologia , Estudos Transversais
10.
Rev. otorrinolaringol. cir. cabeza cuello ; 83(4): 346-358, dic. 2023. ilus, graf
Artigo em Espanhol | LILACS | ID: biblio-1560349

RESUMO

Introducción: El mareo perceptual postural persistente (MPPP) es, probablemente, la causa más prevalente de mareo crónico. Sin embargo, su fisiopatología es aún motivo de duda y debate. En el presente artículo, proponemos que el MPPP se caracteriza por disfunciones cognitivas de orden superior, al punto de diferenciarse en estas dimensiones de controles sanos y pacientes con patologías vestibulares no-MPPP. Objetivo: Determinar si pacientes con MPPP presentan alteraciones discriminantes respecto a grupos controles, en ámbitos de atención, memoria de trabajo visoespacial, planificación espacial, funciones ejecutivas y rendimiento cognitivo global. Material y Método: Estudio descriptivo transversal con sujetos de entre 18 y 65 años, reclutados de una unidad de otoneurología ambulatoria. Se aplicaron pruebas Montreal Cognitive Assessment (MoCA), tarea de retención de dígitos, Trail Making Test, Corsi Block-Tapping Task y Torre de Londres. Resultados: 30 pacientes fueron categorizados en tres grupos: grupo MPPP (n = 14), grupo vestibular no-MPPP (n = 11) y grupo control (n = 5). El grupo MPPP exhibió un rendimiento significativamente inferior en pruebas de planificación, velocidad de procesamiento y funciones ejecutivas en ámbitos visoespaciales, mientras que en atención y memoria visoespacial no hubo diferencias entre grupos. Conclusión: El MPPP podría caracterizarse por una disfunción de procesos cognitivos superiores de construcción espacial de mayor complejidad, respetando funciones visoespaciales de menor orden como la memoria de trabajo. Estos hallazgos ofrecen nuevas luces para comprender la fisiopatología del MPPP y sus implicancias clínicas.


Introduction: Persistent postural-perceptual dizziness (PPPD) is probably the most prevalent cause of chronic dizziness. However, its pathophysiology is still a matter of uncertainty and debate. In this article, we propose that PPPD is characterized by higher-order cognitive dysfunctions, to the point of differentiating it from healthy controls and patients with non-PPPD vestibular pathologies. Aim: To determine whether patients with PPPD exhibit discriminant alterations compared to control groups in the areas of attention, visuospatial working memory, spatial planning, executive functions, and global cognitive performance. Materials and Methods: A cross-sectional descriptive study was conducted with subjects between the ages of 18 and 65 years, recruited from an outpatient otoneurology unit. Tests included the Montreal Cognitive Assessment (MoCA), digit retention task, Trail Making Test, Corsi Block-Tapping Task, and the Tower of London. Results: 30 patients were categorized into three groups: PPPD group (n = 14), non-PPPD vestibular group (n = 11), and control group (n = 5). The PPPD group showed significantly lower performance on tests of planning, processing speed, and executive function in visuospatial domains, while there were no differences between groups in attention and visuospatial memory. Conclusion: PPPD may be characterized by dysfunction of higher-order cognitive processes related to spatial construction of greater complexity, while sparing lower-order visuospatial functions such as working memory. These findings offer new insights into the pathophysiology of PPPD and its clinical implications.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Adulto Jovem , Postura/fisiologia , Tontura/fisiopatologia , Percepção de Movimento/fisiologia , Doença Crônica , Epidemiologia Descritiva , Disfunção Cognitiva/fisiopatologia , Navegação Espacial/fisiologia , Memória de Curto Prazo/fisiologia
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