Toxicidad por flecainida: aparición de signo de Brugada y bloqueo de rama izquierda

Marcelo Vicente Puga, Yisel Gallardo Medina, Jesús A Castro Hevia, Juan J Quirós Luis Quirós Luis

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Resumen

Se trata de una paciente femenina de 47 años, que presentó episodio de taquicardia por reentrada intranodal y se inició tratamiento con flecainida, sin recurrencias. Luego de dos años de tratamiento presentó toxicidad por ese fármaco, que se manifestó eléctricamente con aparición de un bloqueo de rama izquierda y posteriormente del patrón convexo del síndrome de Brugada, cambios eléctricos que desaparecieron al suspender el antiarrítmico. Se realizó posteriormente ablación exitosa de la vía lenta del circuito de la arritmia.

Palabras clave

toxicidad por flecainida; síndrome de Brugada; bloqueo de rama izquierda; taquicardia por reentrada intranodal

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