Cyclical vomiting syndrome: Recognition, assessment and management

Table 1 North American Society for Pediatric Gastroenterology, Hepatology and Nutrition criteria for cyclical vomiting syndrome

All of the following criteria must be met to fulfil the definition of CVS

At least 5 attacks in any interval, or A minimum of 3 attacks during a 6-mo period

Episodic attacks of intense nausea and vomiting lasting 1 h 10 d and occurring at least 1 wk apart

Stereotypical pattern and symptoms in the individual patient

Vomiting during attacks occurs at least 4 times/h for at least 1 h

Return to baseline health between episodes

Not attributed to another disorder

CVS: Cyclical vomiting syndrome.