cyclic vomiting syndrome
Also written as: CVS — Cyclic vomiting syndrome
A functional gastrointestinal disorder characterized by recurrent episodes of severe nausea and vomiting separated by periods of normal health.
Full Definition
Cyclic vomiting syndrome (CVS) is a chronic functional disorder characterized by recurrent, stereotypical episodes of intense nausea and vomiting lasting hours to days, separated by symptom-free intervals. The condition primarily affects children, with many patients having a personal or family history of migraines. Episodes often follow a predictable pattern for each individual and may be triggered by stress, infections, or certain foods. While the exact pathophysiology is unclear, CVS is thought to involve dysfunction of the brain-gut axis and shares similarities with migraine headaches.
Usage
Usage note: Often abbreviated as CVS; associated with migraine disorders and may respond to migraine preventive medications.
In Context
- "The child's recurrent vomiting episodes every 6-8 weeks were consistent with cyclic vomiting syndrome." — Pediatric gastroenterology consultation
- "Family history of migraines supported the diagnosis of cyclic vomiting syndrome." — Pediatric neurology note