A ventriculoperitoneal shunt operation is surgery to insert a drainage tube (catheter) into the brain. The tube runs into the abdominal cavity. This tube is used to move extra fluid in the brain to the abdomen where it can be absorbed. The entire tube is under the skin and not visible.

This type of shunt is used to treat hydrocephalus, an condition that results in excess fluid in the brain. Excess fluid can cause increased pressure. This pressure can damage sensitive brain tissues. The shunt drains the excess fluid and reduces pressure on the brain.

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