The prognostic factors causing recurrent differentiation syndrome through treatment were reported, including an increased incidence of DS in females with a significant P-value of 0.01, Table 4, and in patients with wild FLT3 with a significant P-value of 0.04, Table 5, receiving steroids with ATRA may decrease the incidence of DS with a P-value of 0.058, Table 4. The gene discussed is FLT3; the disease is Dravet syndrome.