Abstract

Cyclical vomiting syndrome (CVS) is a chronic idiopathic functional gastrointestinal disorder characterised by intermittent episodes of severe nausea and vomiting with symptoms-free intervals in between. CVS is seen in various age groups with a prevalence of 1.9%. Numerous psychosocial, physical and infectious stressors have been attributed as a trigger of CVS. Often, a co-existing organic and psychiatric comorbidities mask the disorder, and an absence of diagnostic investigation causes a delay in diagnosis and makes it challenging to treat.

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