LEARN MORE Infantile Spasms (IS) are a medical emergency. Infantile spasms are a rare, but very serious type of seizure. Infantile spasms are caused by a condition in a baby’s brain and include repetitive, but often subtle movements—such as jerking of the mid-section, dropping of the head, raising of the arms or wide-eyed blinks. IS can be misdiagnosed as colic, reflux, or a startle reflex.Prompt diagnosis and treatment are critical, but this is challenging because infantile spasms can be mistaken for normal baby movements or other disorders that don’t demand urgency. — iSAN (Infantile Spasms Action Network) Information, causes, care, treatments, & more! Infantile Spasms Action Network Children's hospital (IS) Overview Children's hospital (Is) program