Infantile tremor syndrome: Role of Vitamin B12 revisited

OBJECTIVE: To study the role of Vitamin B12 as an etiological factor in patients of infantile tremor syndrome (ITS). METHODS: Twelve consecutive admissions of children diagnosed clinically as ITS were assessed. Assessment was done using a predefined pro forma to document patient demographic factors, general examination, systemic examination as well as relevant hematological and biochemical investigations. RESULTS: Out of the 12 cases of ITS, 6 were males and 6 were females. Two cases had serum B12 levels below reference values, five had levels in low normal range, and remaining five had normal values. CONCLUSIONS: Role of Vitamin B12 deficiency as an etiological factor in the patients of ITS is inconclusive.