Cyclic Vomiting Syndrome

Cyclic Vomiting Syndrome (CVS) is a disorder where a person experiences recurrent attacks of nausea and vomiting that may last hours to days with an unknown etiology. The attacks usually last for the same length of time and occur at the same time of day; most often late night to early morning. One third of children may have cyclic vomiting syndrome and/or abdominal migraine in childhood followed by migraine disease in adulthood.1

Studies have shown that 39–87% of children with CVS and 24–70% of adults with CVS have a migraine association based upon either a positive family history or concomitant or subsequent development of migraines in the patient.”1