A transformation of trigeminal neuralgia into SUNCT/SUNA: A case report and literature review / Uma transformação da neuralgia do trigêmeo em SUNCT/SUNA: relato de caso e revisão da literatura

Introduction: Trigeminal neuralgia and Short-lasting Unilateral Neuralgiform Headache with Conjunctival injection and Tearing (SUNCT)/Short-lasting Unilateral Neuralgiform Headache Attacks with Cranial Autonomic Symptoms (SUNA) are characterized by similar clinical manifestations, which may lead to diagnostic confusion. However, the transformation of trigeminal neuralgia into SUNCT/SUNA is a rare phenomenon. This report describes a case of trigeminal neuralgia transformation into SUNCT/SUNA due to neurovascular compression and reviews all previously published cases of trigeminal neuralgia to SUNCT/SUNA transformation in the literature. Case presentation: A 49-year-old Thai male patient presented with progressive right facial pain for a period of three months. One year prior, he developed trigeminal neuralgia along the maxillary branch of the trigeminal nerve, characterized by electrical shock-like pain in the right upper molar, exacerbated by eating. His symptoms were effectively managed with carbamazepine. Nine months later, he began experiencing recurrent electrical shock-like pain along the ophthalmic division of the right trigeminal nerve, accompanied by lacrimation, which failed to respond to continued treatment with carbamazepine. Three months prior to presentation, his symptoms evolved into SUNCT/SUNA, characterized by electrical shock-like pain in the right periorbital area and conjunctival injection, lacrimation. Neuroimaging revealed high-grade neurovascular compression of the right trigeminal nerve by the right superior cerebellar artery. The patient's symptoms resolved following microvascular decompression. Conclusion: Clinicians should be aware that patients with longer disease duration of trigeminal neuralgia who develop new neuralgic pain in the ophthalmic branch division with mild autonomic symptoms may be at risk for transformation into SUNCT/SUNA.

Introduction: Trigeminal neuralgia and Short-lasting Unilateral Neuralgiform Headache with Conjunctival injection and Tearing (SUNCT)/Short-lasting Unilateral Neuralgiform Headache Attacks with Cranial Autonomic Symptoms (SUNA) are characterized by similar clinical manifestations, which may lead to diagnostic confusion. However, the transformation of trigeminal neuralgia into SUNCT/SUNA is a rare phenomenon. This report describes a case of trigeminal neuralgia transformation into SUNCT/SUNA due to neurovascular compression and reviews all previously published cases of trigeminal neuralgia to SUNCT/SUNA transformation in the literature. Case presentation: A 49-year-old Thai male patient presented with progressive right facial pain for a period of three months. One year prior, he developed trigeminal neuralgia along the maxillary branch of the trigeminal nerve, characterized by electrical shock-like pain in the right upper molar, exacerbated by eating. His symptoms were effectively managed with carbamazepine. Nine months later, he began experiencing recurrent electrical shock-like pain along the ophthalmic division of the right trigeminal nerve, accompanied by lacrimation, which failed to respond to continued treatment with carbamazepine. Three months prior to presentation, his symptoms evolved into SUNCT/SUNA, characterized by electrical shock-like pain in the right periorbital area and conjunctival injection, lacrimation. Neuroimaging revealed high-grade neurovascular compression of the right trigeminal nerve by the right superior cerebellar artery. The patient's symptoms resolved following microvascular decompression. Conclusion: Clinicians should be aware that patients with longer disease duration of trigeminal neuralgia who develop new neuralgic pain in the ophthalmic branch division with mild autonomic symptoms may be at risk for transformation into SUNCT/SUNA

2020: Renewing the paradigms for orofacial pain / 2020: renovando los paradigmas para el dolor orofacial

Abstract In 2020, two important changes were adapted by the international health community: a new definition of pain and a new classification for orofacial pain conditions. With these changes new tasks and challenges also emerged, and clinicians from several disciplines begun to adopt and reconsidered classic paradigms, and the policies derived from them. This new perspective article, examine the new definition of pain proposed by the International Association for the Study of Pain, and the new International Classification of Orofacial Pain; analyzing the positive impact and further perspectives of these.

Resumen En 2020, dos importantes cambios fueron adaptados por la comunidad internacional en salud: una nueva definición de dolor y una nueva clasificación para las condiciones de dolor orofacial. Con estos cambios, también emergieron nuevos retos y tareas, y los clínicos de diversas disciplinas empezaron adaptar y reconsiderar los paradigmas clásicos; y las políticas derivadas de estos. En este artículo de nueva perspectiva, examinaremos nueva definición de dolor propuesta por la Asociación Internacional para el Estudio del Dolor, y la nueva Clasificación Internacional de Dolor Orofacial; analizando el impacto positivo y las próximas perspectivas de estos cambios.

Prevalence of signs and symptoms of temporomandibular disorders in children in the state of Puebla, Mexico, evaluated with the research diagnostic criteria for temporomandibular disorders (RDC/TMD)

The aim of this work was to describe the prevalence of signs and symptoms of temporomandibular disorders (TMD) in children of the State of Puebla, Mexico. A descriptive observational study was performed. After calculating sample size, children who met the following selection criteria were included: registered at an official elementary school, either sex, ages between 8 and 12 years, who accept to participate in the study and whose parents have signed the informed consent forms. The Research Diagnostic Criteria for Temporomandibular Disorders were used by calibrated researchers (Kappa.90) under the same conditions. Descriptive statistics were applied by using SPSSv15 software. The study included 235 children, 129 (54.9%) female and 106 (45.1%) male, of average age 9.31+1.2 years. Prevalence of signs and symptoms was 33.2%, and predominately muscular (82%), 48.1% showed signs of muscular pain and 19.1% joint pain. 63.4% showed signs of alteration in the mouth opening pattern, 39.1% presented joint sounds on opening or closing the mouth and 20.4% on mandibular excursions. The high prevalence of signs and symptoms related to temporomandibular disorders, in particular in children with mixed dentition, shows the importance of TMD evaluation during this period, when morphological changes associated to growth and craniofacial development prevail.

El objetivo del presente trabajo fue describir la prevalencia de signos y sintomas de los trastornos temporomandibulares (TTM) en ninos del estado de Puebla, Mexico. Se realizo un estudio observacional descriptivo. Previo calculo de tamano de muestra, se incluyeron ninos que cumplieron con criterios previos de seleccion: inscriptos en escuela primaria oficial, de cualquier sexo, en edades de 8 a 12 anos, que aceptaron participar en el estudio y cuyos padres firmaron el consentimiento informado. Se utilizaron los Criterios de Investigacion Diagnostica para los TTM, aplicados por investigador estandarizado (Kappa .90) bajo las mismas condiciones. Se calculo estadistica descriptiva con el programa SPSS v15. Se incluyeron 235 ninos, 129 (54.9%) mujeres y 106 (45.1%) varones con promedio de edad de 9.31}1.2 anos. La prevalencia de signos y sintomas de TTM fue del 33.2% predominantemente musculares (82%), 48.1% presentaron dolor muscular y 19.1% articular. El 63.4% presento alteraciones en el patron de apertura bucal, 39.1% presento ruidos articulares en apertura o cierre y 20.4% a las excursiones mandibulares. Las altas prevalencias de los signos y sintomas relacionadas con los Trastornos Temporomandibulares, particularmente en ninos con denticion mixta, demuestran la importancia de la evaluacion de los TTM durante este periodo, donde prevalecen los cambios morfologicos asociados al crecimiento y al desarrollo craneofacial.

Dolor orofacial: Características. Neurofisiología: mecanismos moduladores. Su vinculación con alteraciones del movimiento mandibular / Orofacial pain: Characteristics. Neurophysiology: modulating mechanisms. Its association with mandibular movement alterations

El dolor es el síntoma más habitual en la consulta odontológica y el factor causal de mayor importancia y frecuencia para que el paciente acuda en busca de asistencia. En los últimos años los neurólogos han hecho importantes avances en el estudio de los aspectos neurofisiológicos del dolor, referidos fundamentalmente a los mecanismos y sustancias que regulan su persistencia e intensidad. Lamentablemente gran parte de la información llega muy escasamente al odontólogo. Es interesante señalar también que tanto en el nivel pregrado como en el de posgrado son muy escasos los cursos con contenidos referidos a este tema. El objetivo de este trabajo es brindar una revisión básica y actualizada sobre distintos aspectos del síntoma dolor, a saber: nocicepción y dolor, diferencias conceptuales. Características: tipo de dolor: crónico-agudo, superficial, heterotópico. Neurofisiología: vías de conducción. Mecanismos modulares inhibitorios y de sensibilización, metaméricos y centrales. Sustancias que lo provocan: fenómenos de hiperalgesia, neuroplasticidad y persistencia del síntoma. Características del dolor inflamatorio, sensibilización periférica. El factor psicológico como modulador intrínseco del dolor vinculado al sufrimiento. Aspectos cognitivos, afectivo-emocionales y conductuales. Por último, algunos conceptos referidos a la posible asociación del dolor con alteraciones del movimiento mandibular

Dor facial idiopatica (2 parte): tratamento e prognostico / Idiopathic facial pain (part 2): treatment and prognosis

O presente trabalho procura introduzir um novo conceito na fisiopatologia e tratamento da chamada "sindrome da dor e disfuncao da ATM". Este trabalho doi dividido em duas partes, a primeira abrangeu a definicao, classificacao, etiologia e hipotese sobre a dor facial idiopatica v. 53(4). Nesta segunda parte abordamos o tratamento, prognostico e sugestoes de conduta. O tratamento da dor facial atipica consiste basicamente em aconselhamento e orientacao do paciente, e num segundo estagio, no uso de medicacao anti depressiva triciclica ou similar. O uso de placas de mordida e eventualmente considerado, porem tem sido pouco eficaz no tratamento. Artroscopia pode ser utilizada em pacientes resistentes e a cirurgia praticamente esta contra-indicada. Esta conduta e baseada num modelo de trabalho desenvolvido neste departamento e em outros centros mundiais, e vem revolucionando o tratamento clinico dos pacientes portadores de dor facial idiopatica

Dor facial idiopatica, parte 1: definicao, classificacao e etiologia / Idiopathic facial pain, part 1: definition, classification and aetiology

O presente trabalho procura introduzir um novo conceito na fisiopatologia e tratamento da chamada 'sindrome da dor e disfuncao da ATM'. Este trabalho foi dividido em duas partes, nesta primeira abordamos a definicao, classificacao, etiologia e hipotese sobre a dor facial idiopatica. A segunda parte abordara o tratamento e seus problemas, prognostico e sugestoes de conduta. Sob esta nova visao, esta 'sindrome' passa a ser abordada como parte da entitulada 'Dor Facial Idiopatica'. A dor facial idiopatica e subdividida didaticamente em (1) artromialgia facial, (2) dor facial atipica, (3) odontalgia atipica, (4) disestesia bucal. Sob este enfoque, fatores etiologicos oclusais sao menos valorizados, enfatizando-se mais os aspectos psicologicos e bioquimicos. O diagnostico deve ser preciso, e uma anamnese que inclua aspectos psicologicos e sociais e fundamental. Esta conduta e baseada num modelo de trabalho desenvolvido neste departamento e em outros centros mundiais, e vem revolucionando o tratamento clinico dos pacientes portadores de dor facial idiopatica

Curso de diagnóstico da dor facial / Course of diagnostic in facial pain

Após conceituar a dor, discutir a terminologia pertinente ao tema e recapitular certos princípios de fisiopatologia, o autor discorre sobre a anemnese e o exame físico do paciente com dor facial. A exposição, inicialmente genérica é posteriormente, destinada a doenças específicas. O assunto é apresentado de forma a instituir o clínico sobre o diagnóstico diferencial da dor facial e, sobretudo, oferecer-lhe instruções, didaticamente agrupados, sobre um tema que é extenso, subjetivo e difícil, mas de grande importância prática