INTRODUCTION: Focal impaired awareness seizures are a common neurological disorder characterized by abnormal electrical activity in a specific brain region, resulting in impaired consciousness and neurological symptoms. Treatment options for patients may include antiepileptic medications, lifestyle modifications, or, in some cases, surgical intervention aimed at resecting the area of the brain responsible for seizure generation. Shunt malfunction can lead to seizures in cases of hydrocephalus
however, seizures triggered by stimulation of a specific brain area by the shunt catheter post-placement have not been reported. CASE: This case provides a compelling example of a seizure triggered by the stimulation of a foreign body in the ventricle. The patient is a 31-year-old man who suffered seizures due to the proximal catheter remaining in the ventricle. CONCLUSION: In general, accidental events during surgery should be carefully investigated and taken into consideration. And if necessary, timely intervention should be done to eliminate possible complications.