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Dictionary: Single Ventricle Defect

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Single ventricle defect: a heart usually has two working ventricles (pumping chambers). Having a single ventricle (VEN-trih-kul) means that only one of the two ventricles works well enough to pump blood.

Illustration: Healthy Heart

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Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.