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What is cyclic vomiting syndrome?

Cyclic vomiting syndrome (CVS) is a rare disorder characterized by recurring periods of vomiting in an otherwise normal child. Children in the pre-school or early school years are most susceptible to CVS, although it can appear anywhere from infancy to adulthood. This disorder was identified a century ago, but its cause is still unknown. Episodes can be triggered by

emotional stress or infections, can last hours or days and can return at any time. Abdominal pain is a frequent feature.

Cyclic vomiting syndrome is a rare digestive disorder that affects children and adults. Cyclic vomiting syndrome (CVS) is a condition where someone has times of severe nausea and vomiting, but normal periods of health in between. The vomiting can last for several hours or even days, along with other symptoms such as paleness, tiredness, headache, dizziness, being bothered by light, and belly (abdominal) pain. The episodes of vomiting can be treated with medications, and the good news is that most children with CVS tend to outgrow it as they get older.

The terms CVS and abdominal migraine often have been used interchangeably because of overlap in clinical criteria. Indeed, the key criteria, except vomiting, in abdominal migraines are identical to those in CVS: recurrent, stereotypical, and severe episodes of abdominal pain; punctuating well periods; autonomic symptoms (eg, pallor, lethargy); and a family history of migraine headaches. As a result, symptoms of abdominal pain and vomiting allow many children to be diagnosed with CVS or abdominal migraine. When both symptoms occur, the authors use the predominant or consistent symptom as the primary label.

More information on cyclic vomiting syndrome (CVS)

What is cyclic vomiting syndrome? - Cyclic vomiting syndrome (CVS) is a rare disorder characterized by recurring periods of vomiting in an otherwise normal child.
What're the symptoms of cyclic vomiting syndrome? - Cyclic Vomiting Syndrome is characterized by recurrent, prolonged attacks of severe nausea, vomiting and prostration with no apparent cause.
How is cyclic vomiting syndrome diagnosed? - The diagnosis of CVS depends upon looking at the symptoms and medical history and by excluding more common diseases or disorders.
What is the treatment for cyclic vomiting syndrome? - Treatment varies, but people with cyclic vomiting syndrome are generally advised to get plenty of rest; sleep; and take medications that prevent a vomiting episode.
What're the complications of cyclic vomiting syndrome? - The severe vomiting that defines cyclic vomiting syndrome is a risk factor for several complications.
How to prevent cyclic vomiting syndrome? - People whose episodes are frequent and long-lasting may be treated during the symptom-free intervals in an effort to prevent or ease future episodes.
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All information is intended for reference only. Please consult your physician for accurate medical advices and treatment. Copyright 2005,, all rights reserved. Last update: July 18, 2005