Can an implantable cardiac defibrillator cause a seizure?

An implantable cardiac defibrillator (ICD) is primarily designed to monitor and treat life-threatening arrhythmias by delivering electric shocks to restore normal heart rhythm. While it is not common for an ICD to directly cause seizures, the electric shocks delivered by the device may potentially provoke a seizure in individuals with a predisposition to seizure disorders. Additionally, any underlying heart condition or changes in cerebral blood flow due to arrhythmias can also contribute to seizure activity. If seizures occur, it's important for the patient to consult their healthcare provider for evaluation and management.