Rehabilitation training for children with neuromuscular disease in PICU / 中国小儿急救医学

Neuromuscular diseases refer to a class of congenital or acquired diseases mainly involving the spinal cord anterior horn motor cells, peripheral nerves, neuromuscular junction and skeletal muscle.The common symptoms and signs include respiratory failure, skeletal malformations, joint contracture, gait abnormalities and movement disorders, and so on.Children in PICU are in more critical conditions.Early systematic, standardized and individualized rehabilitation training can promote the recovery of neuromuscular function, prevent or reduce complications, reduce the incidence and severity of late limb dysfunction, as well as improve the long-term quality of life of children.This review summarized the rehabilitation training of children with neuromuscular disease in PICU.

Complex treatment of neuromuscular diseases in PICU / 中国小儿急救医学

Neuromuscular diseases are a group of disorders that affect the anterior horn cells of the spinal cord, peripheral nerves, neuromuscular junction and skeletal muscle.A subset of children with neuromuscular disease have rapidly progressive conditions that threaten respiratory and medulla oblongata function.The main causes of neuromuscular disease in PICU include severe neurological impairment, infections, comorbidities, unexpected situations, and other conditions that can exacerbate the primary disease.In each case, timely identification and development of the specific therapies and supportive care measures could improve prognosis.

Respiratory support for neuromuscular disease in children / 中国小儿急救医学

Neuromuscular disease is a group of rare diseases related to heredity and immunity.Most children require assisted ventilation due to chronic respiratory failure.Acute respiratory failure associated with respiratory infections is the most common cause of unplanned hospitalizations, and chronic respiratory failure is a common cause of death.Although there are many guidelines and consensus on neuromuscular disease, there is little focusing on respiratory problems.In this review, the studies related to neuromuscular disease in children were reviewed to summarize the characteristics of respiratory system, common complications and pathogenesis, respiratory function assessment and respiratory support measures, so as to protect the respiratory function of neuromuscular disease and prolong life.

Progress and challenges in diagnosis and treatment of neuromuscular disease in children / 中国小儿急救医学

Neuromuscular disease (NMD) is a group of disorders that affect the nervous system and muscles, leading to weakness, wasting, and the causes are diverse, often causing disability and death.In recent years, there have been significant advances in the diagnosis and treatment of NMDs in children, including new gene therapies, drug therapies, and rehabilitation interventions.However, there are still many challenges and problems that need to be addressed in the management of these conditions.Only through further research and investment, we can provide better treatment and support for patients, thus improve their quality of life.

Improvement of Motor and Life Functions after Nusinersen Treatment in an Adult Patient with Spinal Muscular Atrophy Type II / The Japanese Journal of Rehabilitation Medicine

Spinal muscular atrophy is a neuromuscular disease characterized by muscle atrophy and progressive muscle weakness due to the degeneration of motor neurons in the anterior horn of the spinal cord. We report a case of an adult patient with spinal muscular atrophy type II and difficulty holding a sitting position. The patient was evaluated before and after Nusinersen treatment and thereafter periodically for up to 3 months for motor and daily living functions. At 3 months post-treatment, the Expanded version of the Hammersmith Functional Motor Scale and the Revised Upper Limb Module, which are motor function assessment tools for evaluating spinal muscular atrophy, showed an increase of 2 points. Evaluation of daily functioning using the Canadian occupational performance measure demonstrated improvements in eating and computer finger manipulation, and these improvements were considered important in daily lives by the patient. This report shows that the Nusinersen treatment improved motor and daily life functions in a patient with spinal muscular atrophy and low motor function. The report also concludes that rehabilitation evaluation for spinal muscular atrophy should include a disease-specific assessment of motor function, combined with an assessment focusing on physical symptoms and daily life functions to capture clinical changes that are responsive to individual patients with spinal muscular atrophy.

Impact of the motor function of individuals with spinal muscular atrophy on caregiver burden / Impacto de la función motora de los individuos con atrofia muscular espinal en la carga de sus cuidadores / Impacto da função motora de indivíduos com atrofia muscular espinhal na sobrecarga de seus cuidadores

ABSTRACT Spinal Muscular Atrophy (SMA) is a neurodegenerative disease that impairs motor function, justifying the help of a caregiver. This study aimed to analyze the impact of the motor function of individuals with SMA on caregiver burden. This is a cross-sectional study of 32 individuals with SMA and 27 caregivers, carried out in a rehabilitation center, using the identification questionnaire, anamnesis and sociodemographic profile, Motor Function Measurement Scale and Burden Interview. Motor function and caregiver burden were compared between SMA types using the analysis of covariance (ANCOVA) and correlated using Pearson's correlation test. Individuals with SMA type I had greater impairment of motor function when compared to types II and III, and individuals with type III had better scores in all domains of motor function. No correlation was observed between motor function and caregiver burden: however, most caregivers presented some level of burden, especially those from mild to moderate. Moderate to severe burden was found in caregivers with SMA in a considerable prevalence, which requires care and attention from health professionals.

RESUMEN La atrofia muscular espinal (AME) es una enfermedad neurodegenerativa que provoca un deterioro de la función motora, por lo que requiere la asistencia de cuidadores. El objetivo de este estudio fue analizar el impacto de la función motora de los individuos con AME en la carga de sus cuidadores. Se trata de un estudio transversal, realizado en un centro de rehabilitación con 32 individuos con AME y 27 cuidadores, utilizando como metodología el cuestionario de identificación, anamnesis y perfil sociodemográfico, la escala de medida de la función motora y la entrevista de carga. La función motora y la carga de los cuidadores se compararon entre los tipos de AME mediante el análisis de covarianza (Ancova) y se correlacionaron mediante la prueba de correlación de Pearson. Los individuos con AME tipo I tuvieron un mayor deterioro de la función motora en comparación con los tipos II y III, y los individuos de tipo III obtuvieron mejores puntuaciones en todos los dominios de la función motora. No se encontró correlación entre la función motora y la carga del cuidador, pero la mayoría de los cuidadores tenían algún nivel de carga, en particular de leve a moderada. Se encontró una carga de moderada a grave en los cuidadores con AME con una prevalencia considerable, lo que requiere cuidados y atención por parte de los profesionales de la salud.

RESUMO Atrofia muscular espinhal (AME) é uma doença neurodegenerativa que provoca comprometimento na função motora, justificando o auxílio de cuidador. O objetivo deste estudo foi analisar o impacto da função motora de indivíduos com AME na sobrecarga de seus cuidadores. Trata-se de um estudo transversal realizado em um centro de reabilitação com 32 indivíduos portadores de AME e 27 cuidadores, utilizando como metodologia o questionário de identificação, anamnese e perfil sociodemográfico, a escala da medida da função motora e Burden Interview. A função motora e a sobrecarga do cuidador foram comparadas entre os tipos de AME por meio da Análise da Covariância (Ancova) e correlacionadas pelo teste de correlação de Pearson. Os indivíduos com AME tipo I apresentaram maior comprometimento da função motora quando comparado entre os tipos II e III, e indivíduos tipo III apresentaram melhores escores em todos os domínios da função motora. Não foi percebida correlação entre função motora e sobrecarga de cuidador, entretanto encontramos a maior parte dos cuidadores apresentando algum nível de sobrecarga, com destaque ao de leve a moderado. A sobrecarga moderada a severa foi encontrada nos cuidadores com AME em uma prevalência considerável, o que requer cuidado e atenção dos profissionais de saúde.

Terapia con cánula nasal de alto flujo en pacientes pediátricos en domicilio / High flow nasal cannula therapy in pediatric patients at home

Se realiza comentario de estudio de Israel en el cual analizan 75 pacientes pediátricos que utilizaron cánula nasal de alto flujo (CNAF) en domicilio, evaluando la seguridad, las indicaciones, los parámetros de utilización, la duración del tratamiento, los resultados clínicos y la satisfacción de los padres. Se acompaña de una revisión de la literatura del tema.

A comment is made on a study conducted in Israel analyzing 75 pediatric patients who used high-flow nasal cannula at home, evaluating safety, indications, utilization parameters, treatment duration, clinical outcomes, and parental satisfaction. It is accompanied by a literature review on the topic.

Decanulación en Paciente Pediátrica con Enfermedad Neuromuscular: reporte de caso

RESUMEN La enfermedad de multiminicores es un trastorno neuromuscular hereditario caracterizado por la presencia de múltiples 'cores' en biopsia muscular y características clínicas de una miopatía congénita. El presente caso trata de una paciente de 10 años de edad, con diagnóstico de enfermedad neuromuscular multiminicores, traqueostomizada desde los 7 años de edad por destete fallido y debilidad muscular. La paciente fue derivada al Departamento de Rehabilitación Cardio-respiratoria del hospital de Clínicas de la Facultad de Ciencias Médicas de la Universidad Nacional de Asunción, presentando en su primera evaluación dependencia crónica de oxígeno (por más de 12 meses), tos débil y no funcional con flujo pico tosido e inferior a 160 L/m, insuficiencia respiratoria crónica e hipercapnia (53 mmHg de CO2ET). Durante su seguimiento en nuestro departamento fueron seguidas las pautas de Rehabilitación Respiratoria contempladas en el Proyecto de evaluación, tratamiento y seguimiento de pacientes con Enfermedades Neuromusculares, y aprobado por el Consejo Superior de la Facultad de Ciencias Médicas de la Universidad Nacional de Asunción, dichas pautas están fundamentadas en los estudios y publicaciones científicas del Dr. John Bach (Rudgers University, Newart, Nueva Jersey-EEUU) y su equipo colaborador del Grupo Iberoamericano de Cuidados Respiratorios en Enfermedades Neuromusculares. Como resultado final del tratamiento y seguimiento aplicado por más de un año la paciente fue decanulada exitosamente, en un consultorio para pacientes ambulatorios, sin descompensaciones hemodinámicas, con una excelente tolerancia y sin requerimiento de internaciones hospitalarias.

ABSTRACT Multiminicores disease is a hereditary neuromuscular disorder characterized by the presence of multiple 'nuclei' on muscle biopsy and clinical features of a congenital myopathy. The present case concerns a 10-year-old patient, diagnosed with multiminicores disease, tracheostomized since she was seven due to failed weaning and muscle weakness. The patient was referred to the Department of Cardio-respiratory Rehabilitation of the Clínicas Hospital from the National University of Asunción, presenting in her first evaluation chronic oxygen dependence (for more than 12 months), weak and non-functional cough with cough peak flow less than 160 L / m, chronic respiratory failure and hypercapnia (52 mmHg CO2ET). We did the follow-up in order to the Respiratory Rehabilitation guidelines contemplated in the Project for the evaluation, treatment and follow-up of patients with Neuromuscular Diseases, which was approved by the Superior Council of the Medical Sciences School from the National University of Asunción, these guidelines are based on scientific studies and publications done by Dr. John Bach (Rudgers University, Newart, New Jersey-USA) and his collaborating team from the Ibero-American Group for Respiratory Care in Neuromuscular Diseases. As a result, the patient was successfully decannulated, in an outpatient clinic, without hemodynamic decompensations, with excellent tolerance and without the requirement of hospital admissions.

Validación del Cuestionario pediátrico de calidad de vida™ (Pediatric Quality of Life Inventory™) Módulo neuromuscular, versión 3. 0 en español para Argentina / Validation of the Pediatric Quality of Life Inventory™, Neuromuscular Module, version 3. 0 in Spanish for Argentina

Objetivo: Evaluar las propiedades psicométricas del Cuestionario pediátrico de calidad de vida (PedsQLTM 3.0) Módulo Neuromuscular, versión en español para Argentina, en niños entre 2 y 18 años con enfermedades neuromusculares. Población y métodos: Estudio observacional, analítico, prospectivo, de validación, realizado en el Hospital Garrahan entre el 19 de marzo de 2019 y el 9 de marzo de 2020. A los 10-15 días se realizó el retest del cuestionario para validar en los pacientes que reportaron estabilidad. Resultados: Participaron 185 niños y sus padres. Sobre la factibilidad de la herramienta, los participantes comprendieron fácilmente su contenido. La confiabilidad resultó aceptable, con una consistencia interna de 0,82 en niños y 0,87 en padres y un coeficiente de correlación intraclase en el retest de 0,70 en niños y 0,82 en familiares. Sobre la validez del constructo se confirmaron 8 de 11 hipótesis establecidas (72,7 %). Conclusión: El cuestionario fue validado en sus propiedades psicométricas

Objective: To assess the psychometric properties of the Pediatric Quality of Life Inventory™ (PedsQL™ 3.0), Neuromuscular Module, version in Spanish for Argentina, for children aged 2-18 years with neuromuscular disease. Population and methods: Observational, analytical, prospective validation study conducted in Hospital Garrahan between March 19th, 2019 and March 9th, 2020. The retest questionnaire was administered 10-15 days later to validate it among patients who reported a stable condition. Results: A total of 185 children and their parents participated. In terms of the questionnaire's feasibility, its content was easily understood by participants. Its reliability was acceptable, with an internal consistency of 0.82 among children and 0.87 among parents and a retest intraclass correlation coefficient of 0.70 among children and 0.82 among parents. In relation to the construct validity, 8 of the 11 hypotheses established (72.7 %) were confirmed. Conclusion: The questionnaire's psychometric properties were validated.

Knowledge of healthcare professionals about poliomyelitis and postpoliomyelitis: a cross-sectional study

ABSTRACT BACKGROUND: Postpoliomyelitis syndrome is a clinical condition that can affect poliomyelitis survivors. OBJECTIVE: Our aim was to evaluate knowledge of poliomyelitis and postpoliomyelitis syndrome among Brazilian healthcare professionals. DESIGN AND SETTING: Cross-sectional study conducted at a Brazilian public higher education institution located in the state of Goiás. METHODS: The participants (n = 578) were Brazilian physicians, physical therapists, nurses, nutritionists and psychologists. A self-administered questionnaire (30 questions) was designed to probe knowledge about poliomyelitis and postpoliomyelitis syndrome. From the questionnaire, we created a structured test to objectively evaluate the knowledge of these professionals. The test was composed of 20 questions and was scored over a range from 0 (totally ill-informed) to 20 (totally well-informed). RESULTS: In general, the physicians, physical therapists and nurses demonstrated better understanding of poliomyelitis and postpoliomyelitis syndrome. The healthcare professionals who had received previous information about poliomyelitis and postpoliomyelitis syndrome had significantly higher scores than those who had never received information (P < 0.001). On average, this difference was approximately 28.6%. CONCLUSIONS: The findings from the present study indicate that there is a critical need for improvement of knowledge about postpoliomyelitis syndrome among Brazilian healthcare professionals. The services provided by these professionals may therefore become compromised. Furthermore, public healthcare initiatives should be implemented to improve knowledge among healthcare professionals.

Descripción clínica de pacientes pediátricos con enfermedades neuromusculares en una muestra de población chilena / Clinical description of pediatric patients with neuromuscular diseases in a Chilean population sample

OBJETIVO: Describir clínica y diagnóstico de 152 pacientes pediátricos asistentes al policlínico del Programa de Enfermedades Neuromusculares (ENM) en un centro terciario de la Región Metropolitana, Chile. METODOLOGÍA: Revisión de fichas programa EMN (2012-2016). RESULTADOS: 49% niñas, mediana de edad: 9 años (rango, 0­18), consultan por alteraciones de la marcha, debilidad e hipotonía. Segmentos más afectados son músculo y nervio periférico (92%). Diagnósticos más frecuentes son neuropatías adquiridas (26,1%), distrofias musculares (14,8%) y trastornos miotónicos (12,7%). Comorbilidades más frecuentes son patología traumatológica (23,2%) y discapacidad intelectual (13,4%). Los pacientes con patología hereditaria tienen mayor chance de requerir ventilación mecánica (OR 15,4; IC 95% 1,9­119,2) y presentar morbilidad traumatológica (OR 4,1; IC 1,03­16,4) que los con patología adquiridas. Confirmación genético-molecular en 38,4% de los pacientes con patología hereditaria. CONCLUSIONES: El conocimiento de características clínicas y posibilidades de estudio de las ENM puede mejorar las estrategias de atención.

INTRODUCTION: Neuromuscular diseases (NMS) represent a heterogeneous group of acquired and hereditary pathologies that affect the motor unit. There are few descriptive studies of patients with NMS in Chile and Latin America. OBJECTIVES: To clinically and epidemiologically characterize the pediatric population attending a polyclinic run using the NMS program of a hospital in the Metropolitan Region in Chile. Methodology: A review was made of database and clinical records of patients diagnosed with NMS between January 2012 and December 2016. RESULTS: A total of 142 patients, 51% of whom were male, with a median age 9 years (0-18 years), were included. The most frequent reasons for consultation were altered gait, decreased strength, and hypotonia. The most frequently affected segments were muscles and peripheral nerves (92% of the sample). The most frequent diagnoses were acquired neuropathies (26.1%), muscular dystrophies (14.8%), and myotonic disorders (12.7%). The most frequent comorbidities were traumatological pathologies (23.2%) and intellectual disabilities (13.4%). When comparing NMS with hereditary vs. acquired etiologies, those with hereditary etiologies had a higher risk of requiring mechanical ventilation (OR 15.4 [95%CI 1.9-119.2]) and having a traumatological disease (OR 4.1 [CI 1.03-16.4]) compared to those with acquired etiologies. For 38.4% of patients with hereditary etiologies, confirmation was obtained through molecular genetic testing. CONCLUSIONS: This study provides information on the frequency of NMS and their main comorbidities in a Chilean pediatric sample. These results provide information regarding current possibilities for studies and could aid in planning care for these patients in our country. Keywords: Neuromuscular disease, Muscular disease, Neuropathies, Neurological Diagnostic.

Respiratory muscle impairment evaluated with mep/mip ratio in children and adolescents with chronic respiratory disease / Fraqueza muscular respiratória avaliada por meio da relação pemax/pimax em crianças com doença respiratória crônica

ABSTRACT Objective: To evaluate the strength of respiratory muscles and to compare maximum inspiratory (MIP) and expiratory (MEP) pressure and MEP/MIP ratio between patients with chronic respiratory diseases and healthy individuals. Methods: Case-control study. Individuals with neuromuscular disease and post-infectious bronchiolitis obliterans were considered. In addition, they were also matched according to anthropometric and demographic characteristics with healthy children and adolescents. MIP, MEP in the three groups, and pulmonary function only in patients with chronic respiratory diseases were recorded. Results: A total of 52 subjects with CRD (25 with neuromuscular disease, and 27 with post-infectious bronchiolitis obliterans) and 85 healthy individuals were included, with an average age of 11.3±2.1 years. Patients with neuromuscular disease and post-infectious bronchiolitis obliterans presented lower MIP and MEP when compared with healthy individuals, although MEP/MIP ratio was lower in patients with neuromuscular disease (0.87±0.3) and higher in patients with post-infectious bronchiolitis obliterans (1.1±0.3) compared to the healthy group (0.97±0.2). Only in patients with neuromuscular disease a negative correlation was observed between MEP/MIP ratio and age (r=-0.50; p=0.01). Conclusions: Differences in the pattern of muscular weakness between patients with chronic respiratory diseases were observed. In patients with neuromuscular disease, a decrease in the MEP/MIP ratio depending on MIP was verified; and in those patients with post-infectious bronchiolitis obliterans, an increase in the MEP/MIP ratio depending on MIP was also observed.

RESUMO Objetivo: Avaliar a força dos músculos respiratórios e comparar a relação entre a pressão expiratória máxima (PEmáx) e a pressão inspiratória máxima (PImáx) em pacientes com doença respiratória crônica (DRC) e crianças saudáveis. Métodos: Estudo caso-controle. Foram selecionados indivíduos com doença neuromuscular e bronquiolite obliterante pós-infecciosa. Ademais, os grupos foram pareados com crianças e adolescentes saudáveis, considerando características antropométricas e demográficas. Foram registradas a PImáx e a PEmáx nos três grupos e a função pulmonar apenas em pacientes com doença respiratória crônica. Resultados: Foram incluídos 52 indivíduos com DRC (25 com doença neuromuscular e 27 com bronquiolite obliterante pós-infecciosa) e 85 indivíduos saudáveis, com idade média de 11,3±2,1 anos. Pacientes com doença neuromuscular e bronquiolite obliterante pós-infecciosa apresentaram menor PImáx e PEmáx em comparação aos indivíduos saudáveis, embora a relação PEmáx/PImáx tenha sido menor nos pacientes com doença neuromuscular (0,87±0,3) e maior nos pacientes com bronquiolite obliterante pós-infecciosa (1,1±0,3) em comparação ao grupo saudável (0,97±0,2). Somente em pacientes com doença neuromuscular foi observada uma correlação negativa entre a razão PEmáx/PImáx e a idade (r=-0,50; p=0,01). Conclusões: Foram observadas diferenças no padrão de fraqueza muscular em pacientes com doença respiratória crônica. Nos pacientes com doença neuromuscular, verificou-se diminuição na relação PEmáx/PImáx dependendo da PImáx; em pacientes com bronquiolite obliterante pós-infecciosa, foi observado aumento na relação dependendo da PImáx.

Evaluation of clinical, epidemiological and electrophysiological variables for early diagnosis of amyotrophic lateral sclerosis / Avaliação de variáveis clínicas, epidemiológicas e eletrofisiológicas para diagnóstico precoce da esclerose lateral amiotrófica

Motor neuron disease (MND) is a systemic disease with a broad clinical spectrum. It is characterized by primary involvement of the lower or upper motor neuron (UMN), or both, simultaneously, represented by the most common form, amyotrophic lateral sclerosis (ALS). ALS is rapidly progressive and fatal disease that evolve to death due to respiratory failure, on average, in three to five years since the onset of symptoms. This fact attends to the early and correct diagnosis of the disease. OBJECTIVE: To evaluate clinical, epidemiological and electrophysiological variables for the early diagnosis of ALS. METHODS: This is an observational, descriptive and retrospective study, conducted from the collect of the database, in which the variables were submitted to statistical analysis: Mann-Whitney test and Fisher's exact test. RESULTS: When correlating clinical, epidemiological and electrophysiological findings of patients with ALS and other forms of MND, the variables: age of onset of symptoms (P=0,02) hyperreflexia (P=0,001), presence of bulbar symptoms/signs (P<0,001), pathological reflexes (P=0.001), and presence of fasciculation in electromyography (P=0,001) presented statistical significance for the diagnosis of ALS. CONCLUSION: Despite the small sample size, the findings reinforce the importance of well- done neurological examination, to search for signs of involvement of the UMN, in the first evaluation of patients with suspected MND. And that more research is needed to better understand the different phenotypes of the disease in order to obtain an increasingly early diagnosis to offer improvements in the quality of life of these patients

A doença do neurônio motor (DNM) é uma doença sistêmica com amplo espectro clínico. É caracterizada pelo envolvimento primário do neurônio motor inferior ou superior (NMS), ou ambos, simultaneamente, representados pela forma mais comum de esclerose lateral amiotrófica (ELA). A ELA é uma doença rapidamente progressiva e fatal que evolui para óbito devido à insuficiência respiratória, em média, em três a cinco anos desde o início dos sintomas. Esse fato atenta ao diagnóstico precoce e correto da doença. OBJETIVO: Avaliar variáveis clínicas, epidemiológicas e eletrofisiológicas para o diagnóstico precoce de ELA. MÉTODOS: Estudo observacional, descritivo e retrospectivo, realizado a partir da coleta do banco de dados, no qual as variáveis foram submetidas a análises estatísticas: teste de Mann-Whitney e teste exato de Fisher. RESULTADOS: Ao correlacionar achados clínicos, epidemiológicos e eletrofisiológicos de pacientes com ELA e outras formas de DNM, as variáveis: idade de início dos sintomas (P=0,02) hiperreflexia (P=0,001), presença de sintomas/sinais bulbares (P<0,001), reflexos patológicos (P=0,001) e presença de fasciculação na eletromiografia (P=0,001) apresentaram significância estatística para o diagnóstico de ELA. CONCLUSÃO: Apesar do pequeno tamanho da amostra, os achados reforçam a importância do exame neurológico bem feito, na busca de sinais de envolvimento da NMS, na primeira avaliação de pacientes com suspeita de DMN. E que são necessárias mais pesquisas para melhor entendimento dos diferentes fenótipos da doença, a fim de obter um diagnóstico cada vez mais precoce para oferecer melhorias na qualidade de vida desses pacientes

Presiones y pico flujo tosido en la asistencia mecánica de la tos / Pressures used and peak cough flow during mechanical cough assistance

Introducción: En las personas con enfermedad neuromuscular, la incapacidad para toser y para generar flujos espiratorios adecuados constituye el principal limitante para mantener una adecuada salud del sistema respiratorio. La asistencia mecánica de la tos es un dispositivo que genera presión positiva y negativa en la vía aérea y simula una tos normal. Se realizó una revisión bibliográfica. Se incluyeron 9 estudios, con un total de 235 sujetos adultos con enfermedad neuromuscular. Objetivos: Describir los valores de presiones de insuflación y exsuflación utilizados y su relación con los valores de pico flujo tosido. Desarrollo: El 28 por ciento era de género femenino y las edades estaban comprendidas entre 14 a 77 años. Las presiones utilizadas variaron entre los estudios, con valores que iban desde +15/ -15 cm H2O a los +40/ -40 cm H2O. Con respecto a los valores de pico flujo tosido, 7 estudios observaron incrementos estadísticamente significativos al aplicar la terapéutica. En estos estudios, para obtener un flujo espiratorio superior a 160 L/min se requirieron presiones de al menos -30/+30 cm H2O. Conclusiones: Se requieren futuras investigaciones que permitan el desarrollo de un consenso respecto a aplicación de la asistencia mecánica de la tos en sujetos con enfermedad neuromuscular, así como establecer criterios de selección de las presiones de insuflación y exsuflación a programar durante la terapéutica(AU)

Introduction: In people with neuromuscular disease, the inability to cough and generate adequate expiratory flows is the main limitation to maintain adequate health of the respiratory system. The mechanical assistance of the cough is a device that generates positive and negative pressure in the airway, simulating a normal cough. 9 studies were included, with a total of 235 adult subjects with neuromuscular disease. Objectives: Describe the values ​​of insufflation and exsufflation pressures used and to describe their relationship with peak cough flow values. Development: 28 percent were female and the ages between 14 and 77 years old. The pressures used varied between the different studies, with values ​​ranging from + 15 / -15 cm H2O to + 40 / -40 cm H2O. According to the peak cough flow values, seven studies observed statistically significant increases when applying the therapy. In these studies, to obtain an expiratory flow greater than 160 L / min, at least -30 / + 30 cm H2O were required. Conclusions: Future research is required to allow the development of a consensus regarding the application of mechanical cough assistance in subjects with neuromuscular disease, as well as establishing selection criteria for insufflation and exsufflation pressures to be programmed during therapy(AU)

Descripción clínica de pacientes pediátricos con Enfermedades Neuromusculares en una muestra de población chilena / Neuromuscular Disease: Clinical and Epidemiological Characterization of a Chilean Pediatric Population

Las Enfermedades Neuromusculares (ENM) representan un grupo heterogéneo de patologías adquiridas y hereditarias que afectan la unidad motora. Existen escasos estudios descriptivos en Chile y Latinoamérica de pacientes con ENM. Objetivo: Caracterizar clínica y epidemiológicamente a población pediátrica asistente a policlínico del Programa de ENM en periodo de 3 años en hospital de Región Metropolitana. Pacientes y Método: Revisión de base de datos y fichas clínicas de pacientes con diagnóstico de ENM entre enero 2012 y diciembre 2016. Resultados: 142 pacientes, 51% sexo masculino, mediana de edad 9 años (0-18). Motivos de consulta frecuentes fueron alteración de la marcha, falta de fuerza e hipotonía. Los segmentos más afectados fueron músculo y nervio periférico (92% de la muestra). Los diagnósticos más frecuentes fueron Neuropatías Adquiridas (26,1%), Distrofias Musculares (14,8%) y Trastornos Miotónicos (12,7%). Las comorbilidades más frecuentes fueron las patologías traumatológicas (23,2%) y discapacidad intelectual (13.4%). Los pacientes con patología hereditaria presentaron mayor riesgo de requerimiento de ventilación mecánica (OR 15,4 [IC 95% 1.9-119.2]) y comorbilidad traumatológica (OR 4,1[IC 1.0316.4]) que los con patología adquiridas. 38,4 % de los pacientes con etiología hereditaria tuvieron confirmación genético-molecular. Conclusiones: Este estudio da información de la frecuencia de las distintas ENM y sus principales comorbilidades en una muestra pediátrica chilena. Aporta datos referentes a las posibilidades de estudio disponible en nuestro país y podría ser de ayuda en la planificación de la atención de estos pacientes. Palabras claves: enfermedad neuromuscular, enfermedad muscular, neuropatías, diagnóstico neurológico.

Neuromuscular diseases (NMS) represent a heterogeneous group of acquired and hereditary pathologies that affect the motor unit. There are few descriptive studies of patients with NMS in Chile and Latin America. Objective: To clinically and epidemiologically characterize the pediatric population attending a NMS polyclinic of a hospital in the Metropolitan region. Methodology: A database and clinical record review of patients diagnosed with NMS between January 2012 and December 2016 was performed. Results: A total of 142 patients, 51% of whom were male, with a median age 9 years (0-18 years), were included. The most frequent reasons for consultation were altered gait, lack of strength, and hypotonia. The most frequently affected segments were muscles and peripheral nerves (92% of the sample). The most frequent diagnoses were acquired neuropathies (26.1%), muscular dystrophies (14.8%), and myotonic disorders (12.7%). The most frequent comorbidities were traumatological pathologies (23.2%), and intellectual disabilities (13.4%). When comparing NMS with hereditary vs. acquired etiologies, those with hereditary etiologies had a higher risk of requiring mechanical ventilation (OR 15.4 [95%CI 1.9-119.2]) and having traumatological disease (OR 4.1 [CI 1.03-16.4]), compared to those with acquired etiologies. For 38.4% of patients with hereditary etiologies, confirmation was obtained through a molecular genetic test. Conclusions: This study provides information on the frequency of NMS and their main comorbidities in a Chilean pediatric sample. These results provide information regarding current possibilities for studies and could aid in planning care for these patients in our country. Palabras claves: Neuromuscular disease, Muscular disease, Neuropathies, Neurological Diagnostic.

The association of hand grip strength with functional measures in non-ambulatory children with Duchenne muscular dystrophy / Associação da força de preensão manual com medidas funcionais em crianças com distrofia muscular de Duchenne, que não deambulam

ABSTRACT Duchenne muscular dystrophy (DMD) is a disease characterized by progressive loss of muscle fiber, gradually from proximal to distal. Although a few studies have investigated hand grip strength in non-ambulatory DMD patients, a lack of literature was found determining its relationship with functional capacity. Objective: The aim of this study was to determine the associations between hand grip strength and functional measures in non-ambulatory children with DMD. Methods: Hand grip strength was evaluated using a dynamometer in children with DMD. The children with DMD were evaluated with the Turkish version of the Egen Klassifikation Scale Version 2 (EK2) for global functional capacity, the Performance of Upper Limb (PUL) for upper limb functional performance and the ABILHAND-Kids for hand ability. Results: The mean age of 38 DMD children was 12.02 ± 1.99 years. Dominant hand grip strength of the children with DMD was higher than the non-dominant hand (p < 0.05). The EK2 was 13.02 ± 5.50, PUL was 49.86 ± 14.34 and ABILHAND-Kids was 26.81 ± 7.59. Hand grip strength was found to be correlated with the EK2 (p < 0.05). Conclusions: It is known that measuring functional ability and strength in very weak children with DMD has been difficult and complex for therapists/clinicians in the clinical environment. Although there is a moderate correlation, hand grip strength may be used in clinical practice as a practical assessment tool to have an immediate insight into the global functional capacity in non-ambulatory DMD children.

RESUMO A distrofia muscular de Duchenne (DMD) é uma doença caracterizada por perda progressiva da fibra muscular, gradualmente de proximal a distal. Embora poucos estudos tenham investigado a força de preensão manual em pacientes com DMD não ambulatoriais, foi observada uma falta de literatura para determinar suas relações com a capacidade funcional. Objetivo: O objetivo deste estudo foi determinar as associações entre força de preensão manual e medidas funcionais em crianças não ambulatoriais com DMD. Métodos: A força de preensão manual foi avaliada com dinamômetro em crianças com DMD. As crianças com DMD foram avaliadas com a versão turca da Egen Klassifikation Scale Versão 2 (EK2) para capacidade funcional global, desempenho do membro superior (PUL) para desempenho funcional do membro superior e ABILHAND-Kids para a habilidade manual. Resultados: A idade média de trinta e oito crianças com DMD foi de 12,02 ± 1,99. A força de preensão manual dominante das crianças com DMD foi maior que a da mão não dominante (p < 0,05). A EK2 foi calculada em 13,02 ± 5,50, PUL em 49,86 ± 14,34 e ABILHAND-Kids em 26,81 ± 7,59. A força de preensão manual foi correlacionada com a EK2 (p < 0,05). Conclusões: Sabe-se que medir a capacidade funcional e força em crianças muito fracas com DMD tem sido difícil e complexo para terapeutas / clínicos em ambiente clínico. Embora exista uma correlação moderada, a força de preensão manual pode ser usada na prática clínica como uma ferramenta de avaliação prática para obter imediatamente uma percepção da capacidade funcional global em crianças com DMD não ambulatoriais.

Perfil demográfico y clínico-funcional de pacientes con atrofia muscular espinal atendidos en el Instituto Teletón Santiago / Demographic and clinical-functional profile of patients with spinal muscular atrophy attending Instituto Teletón Santiago

Introducción: La atrofia muscular espinal (AME) es una enfermedad neuromuscular (ENM) severa caracterizada por la degeneración de las motoneuronas alfa del asta anterior de la médula espinal, generando una debilidad progresiva de la musculatura proximal. La incidencia mundial se estima en 1/6.000-10.000 nacidos vivos. Contamos con escasos datos de las características de los pacientes con AME en la población chilena. Objetivo: Determinar magnitud, características demográficas y clínico funcionales de los pacientes con AME atendidos en el Instituto Teletón Santiago (ITS). Pacientes y Método: Estudio descriptivo transversal, basado en revisión del sistema informático ITS, fichas clínicas y encuesta telefónica. Resultados: Se identificaron 62 pacientes con AME con controles en ITS, 49 (79%), fueron incluidos. 30,6%, 36,7% y 32,7% corresponden a pacientes con AME 1, 2 y 3 respectivamente. Edad promedio 10,6 ± 6,6 años; pérdida de marcha edad mediana de 6,8 años en pacientes AME 3. 67,3% requieren algún tipo de asistencia ventilatoria, 44,9% presentan trastornos de deglución, 75,5% escoliosis, 49,0% subluxación o luxación de cadera, 79,6% retracciones articulares y 65,3% dolor. En participación, el 83% de las actividades de ocio se realizan dentro del hogar, principalmente de tipo tecnológico; 77,5% realiza salidas sociales. Conclusión: Las características clínico funcionales de los pacientes con AME, evidencian un grupo que presenta un alto nivel de dependencia en todos los tipos de la enfermedad, múltiples comorbilidades y alteraciones músculo-esqueléticas secundarias y por ello requiere de un programa de rehabilitación multidisciplinaria tal como lo describe la literatura internacional.

Introduction: Spinal muscular atrophy (SMA) is a severe neuromuscular disease (NMD) characterized by the loss of alpha motor neurons of the anterior horn of the spinal cord, causing progressive weakness of proximal muscles. Global prevalence is estimated to be 1/6,000-10,000 live births. There is limited data on SMA patients in the Chilean population. Objective: To establish the scale, demographics and functional-clinical characteristics of SMA patients attending Instituto Teletón Santiago (ITS). Patients and Method: Cross-sectional, descriptive study based on the review of ITS's data information system, clinical records and telephone surveys. Results: 62 SMA patients were identified attending regular controls at ITS, 49 (79%) were included in the study. 30.6%, 36.7% and 32.7% correspond to SMA 1, 2 or 3, respectively. Average age 10.6 ± 6.6 years; loss of gait at a median age of 6.8 years in SMA 3 patients. 67.3% require some type of breathing assistance, 44.9% have swallowing problems, 75.5% scoliosis, 49% hip dislocation or subluxation, 79.6% contracture of joints and 65.3% pain. In terms of social participation, 83% of recreational activities are carried out indoors, mainly related to the use of technology; and 77.5% go out to take part in social activities. Conclusion: Functional-clinical characteristics of SMA patients show that there is a group with high levels of dependence in all types of the disease, multiple concurrent disorders and secondary musculoskeletal conditions, and therefore, in the necessity to have a multidisciplinary rehabilitation system, as described in international literature.

Manejo respiratorio en atrofia muscular espinal: cambio de paradigma en la era de las nuevas terapias específicas / Respiratory care in spinal muscular atrophy in the new therapeutic era

Resumen: La atrofia muscular espinal (AME) es la enfermedad genética mortal más frecuente en lactantes, con severidad variable. Se clasifica en cuatro subtipos: tipo 0 de inicio prenatal y recién nacido ya afecta do, con ausencia de esfuerzo respiratorio y ningún desarrollo motor, tipo 1 de inicio en menores de 3 meses que no logran sentarse, tipo 2 que logran sentarse, pero no caminar y tipo 3 que consiguen caminar. La causa más seria de morbimortalidad es la neumonía y la insuficiencia respiratoria. La información a los cuidadores debe contemplarse desde el diagnóstico, para la toma de decisiones anticipadas. Los objetivos del manejo incluyen el estímulo de la tos, evitar la deformación de la caja torácica, la hipoventilación, y tratar oportunamente las infecciones respiratorias, el trastorno de de glución, el reflujo gastroesofágico y la malnutrición. El objetivo de esta actualización es discutir los nuevos desafíos en cuidados respiratorios con un enfoque preventivo, considerando la reciente dis ponibilidad de tratamientos específicos -oligonucleótidos antisentido nusinersen- y otros que están en desarrollo, incluída la terapia génica.

Abstract: Spinal muscular atrophy (SMA) is the first inherited cause of mortality in infants, with four subtypes: SMA0 prenatal onset, SMA1 babies less than 3 months non sitters, SMA2 sitters and SMA3 walkers. Pneumonia and respiratory insufficiency are the most severe complications. Informed parental de cisions are relevant. Respiratory management includes cough assistance, prevention of lung under development due to chest deformity, prompt treatment of respiratory infections, hypoventilation, swallow problems, gastro esophageal reflux and malnutrition. In view of the FDA and EMA approval of the nonsense oligonucleotides nusinersen, the first specific treatment for SMA and the future with gene therapy and others under development, we need to optimize preventive respiratory manage ment with the new standard of care.

Sobrevida de pacientes con distrofia muscular de Duchenne / Survival of patients with Duchenne muscular dystrophy

INTRODUCCIÓN: La distrofia muscular de Duchenne (DMD) conduce a un deterioro progresivo de la función muscular y muerte prematura. Los estudios longitudinales sobre el curso de esta patología en Chile, son nulos. OBJETIVO: Determinar sobrevida entre los años 1993-2013, en 2 periodos (1993 2002 y 2003-2013); y efecto de determinantes sociales en pacientes con DMD ingresados a Institutos Teletón Chile (IT). PACIENTES Y MÉTODO: Estudio pronóstico de seguimiento en serie clínica de 462 pacientes portadores de DMD. La información requerida se obtuvo mediante búsqueda de pacientes con DMD en cubo OLAP (On-Line Analytical Processing). De las fichas clínicas del IT-Stgo, se registraron las variables correspondientes al método diagnóstico, etapa de DMD descrito en función al deterioro muscular y funcionamiento mediante Escala Swinyard; existencia y tipo de exámenes que concluyen el diagnóstico y en los casos que se informó, la existencia de antecedentes familiares. Se realizó análisis de sobrevida de Kaplan Meier, donde la sobrevida global se definió entre el nacimiento y edad de muerte. Los factores determinantes analizados fueron estimados a través del modelo de riesgos proporcionales de Cox-Snell. RESULTADOS: La sobrevida a los 20 años de edad desde el ingreso a los IT, fue de 51,7% (IC95%: 45,1-57,8%); en el período 1993-2002 de 48,5% y entre 2003-2013 de 72,8%. El porcentaje de sobrevida a la misma edad, según nivel socioeconómico alto fue de 82%, medio 67% y bajo 42%, diferencia estadísticamente significativa entre nivel alto y medio, respecto de extrema pobreza. Según zonas del país, la sobrevida fue cercana al 75% a los 17 años de edad. CONCLUSIONES: La información de sobrevida aportada en pacientes con DMD desde la infancia hasta la vida adulta, es valiosa para predecir el curso clínico de la enfermedad con la atención médica actual. Se evidencia mejoría en la probabilidad de sobrevida a los 20 años e inequidad pronunciada según variable socioeconómica.

INTRODUCTION: Duchenne muscular dystrophy (DMD) leads to a progressive deterioration of the mus cle function and premature death. There are no longitudinal studies on the course of this pathology in Chile. OBJECTIVE: To determine survival between the years 1993-2013, divided into two periods (1993-2002 and 2003-2013), and the effect of social determinants in patients with DMD admitted in Teleton Institutes of Chile (TI). PATIENTS AND METHOD: Prospective follow-up study in a clinical series of 462 patients with DMD. The information was obtained by searching for patients with DMD in OLAP cube (Online Analytical Processing). From the clinical records of the TI of Santiago, the variables corresponding to the diagnostic method, stage of DMD described in terms of muscle de terioration and function according to Swinyard classification were recorded; existence and type of tests that conclude the diagnosis and, in the cases reported, the existence of family history. Kaplan Meier survival analysis was applied, where global survival was defined between birth and age of death. The determinant factors analyzed were estimated through the Cox-Snell's proportional risk model. RESULTS: Survival at 20 years of age from TI entry was 51.7% (CI95%: 45.1-57.8), 48.5% in the period 1993-2002 and 72.8% between 2003-2013. The percentage of survival at the same age according to socioeconomic status (SES) was 82% in high SES, 67% in middle SES, and 42% in low SES, with a statistically significant difference between high and middle SES in relation to extreme poverty. Ac cording to country areas, the survival was close to 75 % at 17 years of age. CONCLUSIONS: The survival information from patients with DMD from childhood to adult life is valuable for predicting the clinical course of the disease with the current medical care. There is evidence of improvement in the probability of survival at the age of 20 and marked inequity according to the socioeconomic variable.

Advance of Motor Function Measurements Applied in Neuromuscular Diseases (review) / 中国康复理论与实践

@#Neuromuscular disease (NMD) is a group of hereditary or acquired myopathy typically manifested as motor dysfunction. There is still no consensus in the standardized tools for evaluation of motor function. Among the tools widely used, Motor Function Measure can be used in all kinds of NMD, while North Star Ambulatory Assessment and Performance of the Upper Limb can be for Duchenne muscular dystrophy, and Hammersmith Functional Motor Scale, the Children's Hospital of Philadelphia Infant Test of Neuromuscular Disorders and Upper Limb Module for spinal muscular atrophy.