Cyclic vomiting syndrome (CVS) is characterized by abrupt, repeated, sometimes prolonged episodes of severe vomiting. CVS commonly occurs during the night or early morning hours and may last for several hours or days. Cycles alternate with symptom-free periods. Patients with CVS often have a personal or family history of migraine.
The exact cause of CVS is unknown, but there appears to be a link between CVS and migraine headaches. In children, CVS can be triggered by emotional stress and excitement. Other triggers include infection, certain foods, menstruation and exhaustion.
Children with CVS will have a pattern of vomiting with a consistent time of onset, duration and symptoms. Common symptoms of CVS include:
Vomiting can cause dehydration, which can be life-threatening. It is important to watch for signs of dehydration, including:
If your child is vomiting repeatedly and shows other symptoms of CVS, a pediatric gastroenterologist will perform exams and tests to make a diagnosis. Exams and tests include:
Treatments for CVS include:
Visit the websites below to find support groups and services and learn more about CVS.
Riley at IU Health offers a broad range of supportive services to make life better for families who choose us for their children's care.
This website offers extensive information about CVS for patients and families, including causes, symptoms, treatments and clinical trials.
In addition to our primary hospital location at the Academic Health Center in Indianapolis, IN, we have convenient locations to better serve our communities throughout the state.
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