About Cyclic Vomiting Syndrome ~ CVS

Cyclic Vomiting Syndrome:

By Mayo Clinic Staff

Cyclic vomiting syndrome is characterized by episodes of severe vomiting that have no apparent cause. Episodes can last for hours or days and alternate with relatively symptom-free periods of time. Each episode is similar to previous ones, meaning that episodes tend to start at the same time of day, last the same length of time and occur with the same symptoms and level of intensity.

Once thought to affect only children, cyclic vomiting syndrome occurs in all age groups. Research suggests that cyclic vomiting syndrome may affect almost 2 percent of school-age children and that the number of cases diagnosed in adults is increasing.

Cyclic vomiting syndrome may be related to migraines. Episodes can be so severe that the person has to stay in bed for days.

The syndrome is difficult to diagnose because vomiting is a symptom of many disorders. Treatment generally involves managing symptoms and lifestyle changes to help prevent the events that can trigger vomiting episodes. Medications, including anti-nausea and migraine therapies, may help lessen symptoms.

SYMPTOMS:
The symptoms of cyclic vomiting syndrome include:

Severe vomiting that occurs several times per hour and lasts less than one week
Three or more separate episodes of vomiting with no apparent cause in the past year
Other symptoms during a vomiting episode may include:

Abdominal pain
Diarrhea
Fever
Dizziness
Sensitivity to light
The intervals between vomiting episodes are generally symptom-free. But some people experience mild to moderate nausea or abdominal or limb painĀ  between episodes.

Continued vomiting may cause severe dehydration that can be life threatening. Symptoms of dehydration include:
Thirst
Less urination
Paleness
Exhaustion and listlessness

CAUSES:
The cause of cyclic vomiting syndrome is unknown. But the bouts of vomiting that characterize the syndrome can be triggered by:

Colds, allergies or sinus problems
Emotional stress or excitement, especially in children
Anxiety or panic attacks, especially in adults
Foods, such as chocolate or cheese
Overeating or eating right before going to bed
Hot weather
Physical exhaustion
Menstruation
Motion sickness
Identifying the triggers for vomiting episodes may help with managing cyclic vomiting syndrome.

COMPLICATIONS:
Cyclic vomiting syndrome can cause these complications:

Dehydration. Excessive vomiting causes the body to lose water quickly. Severe cases of dehydration may need to be treated in the hospital.
Injury to the food tube. The stomach acid that comes up with the vomit can damage the tube that connects the mouth and stomach (esophagus). Sometimes the esophagus becomes so irritated it bleeds.
Tooth decay. The acid in vomit can corrode tooth enamel.

SUPPORT:

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