Cyclical vomiting syndrome: diagnosis, causes and treatment

Nurs Stand. 2010 Feb;24(23):35-41. doi: 10.7748/ns2010.


Cyclical vomiting syndrome (CVS) is a disorder of unknown cause. Patients experience episodes of sudden violent vomiting that last from a few hours to a few days, which can occur several times a year. CVS affects children and adults yet despite numerous studies the cause of the condition is unknown. The aim of this article is to outline the current theories for the possible causes of CVS and to examine the various treatment options available.

MeSH terms

  • Humans
  • Periodicity*
  • Syndrome
  • Vomiting* / diagnosis
  • Vomiting* / etiology
  • Vomiting* / therapy