Resumen
Introducción: el inicio del ataque cerebrovascular (ACV) perinatal a menudo pasa desapercibido y solo se reconoce varios meses o incluso años después, típicamente en forma de parálisis cerebral hemiparética. Este retraso hace que sea casi imposible realizar estudios longitudinales desde el momento de la lesión, lo cual dificulta la comprensión de los mecanismos fisiopatológicos subyacentes y limita el desarrollo de estrategias terapéuticas dirigidas.
Contenidos: este análisis respalda la hipótesis conceptual de que una reducción de la inhibición cortical contribuye a la recuperación tras un ACV perinatal y sugiere, además, que dicha reducción podría ser inducida por la desaferentación. A medida que se inicia la recuperación de la actividad muscular, el grado de desaferentación también cambia, lo que conlleva una modulación dinámica y secuencial de la inhibición cortical. Este estado inhibitorio en evolución influye en la manera en que el sistema motor se reorganiza, dando lugar a los tres patrones corticoespinales observados en pacientes con ACV perinatal. Con base en este modelo dinámico de recuperación, se discute la estimulación transcraneal como una posible línea de investigación futura, aprovechando su capacidad para reducir la inhibición cortical.
Conclusión: este artículo propone que la recuperación tras un ACV perinatal sigue un proceso dinámico y secuencial representado por tres patrones corticoespinales. Esta perspectiva conceptual abre el camino para investigaciones futuras, incluyendo la posibilidad de estrategias terapéuticas personalizadas mediante estimulación transcraneal ajustadas a la organización corticoespinal del paciente.
Citas
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