For the disease caused by cannabinoids, see Cannabinoid hyperemesis syndrome.
Medical condition
Cyclic vomiting syndrome
Other names
Cyclical vomiting syndrome
Specialty
Gastroenterology
Cyclic vomiting syndrome (CVS) is a chronic functional condition of unknown pathogenesis. CVS is characterized as recurring episodes lasting a single day to multiple weeks. Each episode is divided into four phases: inter-episodic, prodrome, vomiting, and recovery. Inter-episodic phase (symptom free phase), is characterized as no discernible symptoms, normal everyday activities can occur, and this phase typically lasts one week to one month. The prodrome phase is known as the pre-emetic phase, characterized by the initial feeling of an approaching episode, still able to keep down oral medication. Emetic or vomiting phase is characterized as intense persistent nausea, and repeated vomiting typically lasting hours to days. Recovery phase is typically the phase where vomiting ceases, nausea diminishes or is absent, and appetite returns. "Cyclic vomiting syndrome (CVS) is a rare abnormality of the neuroendocrine system that affects 2% of children."[1] This disorder is thought to be closely related to migraines and family history of migraines.[2][3]
^Lee LY, Abbott L, Mahlangu B, Moodie SJ, Anderson S (September 2012). "The management of cyclic vomiting syndrome: a systematic review". European Journal of Gastroenterology & Hepatology. 24 (9): 1001–6. doi:10.1097/MEG.0b013e328355638f. PMID 22634989. S2CID 19343777.
^Fleisher DR, Gornowicz B, Adams K, Burch R, Feldman EJ (December 2005). "Cyclic Vomiting Syndrome in 41 adults: the illness, the patients, and problems of management". BMC Medicine. 3 (1): 20. doi:10.1186/1741-7015-3-20. PMC 1326207. PMID 16368014.
^Abell TL, Adams KA, Boles RG, Bousvaros A, Chong SK, Fleisher DR, et al. (April 2008). "Cyclic vomiting syndrome in adults". Neurogastroenterology and Motility. 20 (4): 269–84. doi:10.1111/j.1365-2982.2008.01113.x. hdl:2027.42/72300. PMID 18371009. S2CID 8718836.
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