Farhad Heydarian - Professor of Pediatrics, Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Sarah Ghahremani - Assistant Professor of Pediatrics, Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Mona Nasiri - Assistant Professor of Pediatrics, Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Somaye Ghahremani - Nuclear medicine specialist, Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Saeede Noori - General Practitioner, Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Alireza Attaei Nakhaei - Assistant Professor of Pediatrics, Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

Background Febrile Seizure is considered as one of the most common seizure disorders during childhood. The purpose of this study is to compare serum potassium levels in children with febrile seizures and febrile children without seizures. Materials and Methods In this case study, ۳۲۰ children admitted to Ghaem Hospital (Mashhad, Iran) aged six to ۶۰ months were selected. In the case group, there were ۱۶۰ children with febrile seizures, and in the control group, there were ۱۶۰ febrile children without seizures. Potassium serum levels at the time of hospitalization as well as age, gender, duration and cause of fever, duration of hospital stay, and family history of seizures in both groups were investigated and compared. Results Potassium serum levels were significantly higher in children with seizures than in those without seizures (P=۰.۰۰۷). Among children with seizures, those with complex seizures had significantly higher potassium levels (P=۰.۰۲۴). The binary regression test showed that the level of potassium was a risk factor for febrile seizures (P = ۰.۰۲۵). Conclusion Based on the results, higher potassium serum levels can be a risk factor in febrile seizure.

Children, Potassium Level, Seizures, Fever