Cyclic Vomiting Syndrome

Overview

Cyclic vomiting syndrome (CVS) is a disorder characterized by recurrent, prolonged episodes of severe nausea and vomiting with no apparent cause, separated by periods of complete symptom relief. It is more common in children but can affect adults. Episodes can last from hours to days and are often triggered by stress, excitement, or infections. CVS is closely related to migraine and may share underlying mechanisms. Treatment focuses on preventing episodes and managing symptoms when they occur.

Symptoms

Common Symptoms

• Sudden, repeated episodes of severe vomiting (can be 6+ times per hour)
• Episodes last from hours to days
• Periods of complete wellness between episodes
• Episodes often start at the same time of day or night
• Prodrome: nausea, sweating, paleness before vomiting starts
• Abdominal pain
• Sensitivity to light
• Headache
• Exhaustion after episodes
• Triggers: stress, excitement, infections, certain foods, menstruation

Diagnosis

Diagnosis typically involves clinical evaluation, medical history, blood tests, and appropriate imaging studies. A healthcare provider will assess symptoms, order relevant laboratory work, and may refer to a specialist for confirmation.

Treatments

Treatment depends on the underlying cause and severity. Options may include medication, lifestyle modifications (diet, exercise, stress management), and ongoing monitoring. Always work with a qualified healthcare provider to develop an appropriate treatment plan.