A system (100) for treating a medical condition comprising: - at least one electrode (125) coupled to at least one vagus nerve (127) of a patient, - an implantable device operatively coupled to the electrode and comprising a generator ( 110) electrical signal capable of applying an electrical signal to the vagus nerve at a selected point in a physiological cycle of the patient selected from the patient's cardiac cycle and the patient's respiratory cycle using the electrode to treat the medical condition, and - a coupled device operatively to the electrode and capable of detecting said selected point in the physiological cycle of the patient, wherein the electrical signal comprises a plurality of microburst, each microburst comprising a plurality of pulses, adjacent to the plurality of pulses that are separated by an interpulse interval, adjacent to the plurality of microbursts that are separated by an interstate period, and characterized in that each microburst comprises between 2 to 25 pulses per microburst, the interpulse interval ranges of between about 1 to 50 milliseconds being selected, and each microburst has a duration of 100 milliseconds or less.Un sistema (100) de tratamiento de una condición médica que comprende: - al menos un electrodo (125) acoplable a al menos un nervio (127) vago de un paciente, - un dispositivo implantable acoplado operativamente al electrodo y que comprende un generador (110) de señal eléctrica capaz de aplicar una señal eléctrica al nervio vago en un punto seleccionado en un ciclo fisiológico del paciente seleccionado del ciclo cardíaco del paciente y el ciclo respiratorio del paciente usando el electrodo para tratar la condición médica, y - un dispositivo acoplado operativamente al electrodo y capaz de detectar dicho punto seleccionado en el ciclo fisiológico del paciente, en donde la señal eléctrica comprende una pluralidad de microestallido, comprendiendo cada microestallido una pluralidad de pulsos, adyacentes de la pluralidad
