What is the purpose of a ventriculoperitoneal shunt?

What is the purpose of a ventriculoperitoneal shunt?

• A. Drain CSF into the bladder
• B. Drain CSF into the peritoneal cavity
• C. Drain CSF into the skull
• D. Drain CSF into the subarachnoid space

Answer: (B)

A ventriculoperitoneal shunt moves excess cerebrospinal fluid from the brain’s ventricles to a distant absorptive site, relieving hydrocephalus and lowering intracranial pressure. The peritoneal cavity is used because it has a large absorptive surface, allowing the CSF to be absorbed into the bloodstream and maintain normal pressure. Draining CSF into the bladder isn’t a standard, reliable absorption route and could cause infections and urinary issues. Draining into the skull would not reduce intracranial pressure and would keep CSF trapped. Draining into the subarachnoid space would not bypass an obstruction or allow effective absorption, so it wouldn’t relieve the issue.

A ventriculoperitoneal shunt moves excess cerebrospinal fluid from the brain’s ventricles to a distant absorptive site, relieving hydrocephalus and lowering intracranial pressure. The peritoneal cavity is used because it has a large absorptive surface, allowing the CSF to be absorbed into the bloodstream and maintain normal pressure.

Draining CSF into the bladder isn’t a standard, reliable absorption route and could cause infections and urinary issues. Draining into the skull would not reduce intracranial pressure and would keep CSF trapped. Draining into the subarachnoid space would not bypass an obstruction or allow effective absorption, so it wouldn’t relieve the issue.