The diagnosis of a breath-holding spell is made clinically. A good history including the sequence of events, lack of incontinence and no postictal phase, help to make an accurate diagnosis. Some families are advised to make a video recording of the events to aid diagnosis. An
electrocardiogram (ECG) may rule out cardiac
arrhythmia as a cause. There is some evidence that children with
anemia (especially iron deficiency) may be more prone to breath-holding spells.
Classification There are four types of breath-holding spells. ; Simple breath-holding spell : This is the most common type and the cause is the holding of breath. The usual precipitating event is frustration or injury. There is no major alteration of circulation or oxygenation and the recovery is spontaneous. ; Pallid breath-holding spells : The most common stimulus is a painful event. The child turns pale (as opposed to blue) and loses consciousness with little if any crying. The EEG is also normal, and there is no postictal phase, nor incontinence. The child is usually alert within minutes. There may be a relationship with adulthood
syncope. ; Complicated breath-holding spells : These may simply be a more severe form of the two most common types. They generally begin as either a cyanotic or pallid spell that is then associated with
seizure-like activity. An EEG taken while the child is not having a spell is still generally normal. ==Treatment==