La Administración de Medicamentos y Alimentos de EE.UU. ha aprobado el primer dispositivo médico para la prevención de las migrañas. Se llama Cefaly y funciona mediante la estimulación de los nervios debajo de la frente.
Con forma de tiara, el electrodo del dispositivo alimentado por batería está colocado justo por encima de los ojos del paciente. Proporciona una corriente eléctrica, creando una sensación de hormigueo.
En un ensayo controlado aleatorio de 67 personas publicado en la revista Neurology el mes pasado, Cefaly redujo los ataques de migraña crónica en un promedio de dos por mes y el 38% de los usuarios tenían por lo menos una reducción del 50% en el número de episodios de migraña. El dispositivo no fue presentado en el estudio para reducir la severidad de los ataques.
Los pacientes no debieran usar el dispositivo por más de 20 minutos al día. A diferencia de los medicamentos para la migraña, Cefaly no tiene efectos secundarios conocidos y puede ser combinado con otros medicamentos.
“Se necesitan nuevas terapias en la migraña y el realizar más estudios de neuroestimulación utilizando diseños de estudio innovadores garantizan explorar la manera óptima para crear una base de evidencia aceptable para el uso generalizado de este tratamiento potencialmente valioso”, escribe el Dr. Eishi Asano, profesor asociado de pediatría y neurología de la Universidad Estatal Wayne en Detroit.
El fabricante del dispositivo es STX-Med, ubicado en Bélgica. El dispositivo ya está a la venta en Canadá, donde cuesta 250 dólares en el sitio web de Costco Wholesale.
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