What is the primary purpose of a ventriculoperitoneal shunt?

What is the primary purpose of a ventriculoperitoneal shunt?

• A. Drain CSF into the pleural space
• B. Drain CSF into the peritoneal cavity
• C. Drain CSF into the stomach
• D. Drain CSF into the venous system

Answer: (C)

The main idea is to relieve hydrocephalus by moving excess CSF away from the brain's ventricles to a site where it can be absorbed. A ventriculoperitoneal shunt does this by routing CSF from the ventricles into the peritoneal cavity, where the peritoneum absorbs the fluid. Draining into the peritoneal cavity is preferred because it provides a large surface area for absorption and is well tolerated in children. Draining into the stomach isn’t a standard approach because the stomach isn’t an absorptive hub for CSF, and it could lead to complications. Other distal targets like the pleural space or venous system exist in alternate shunt types, but the ventriculoperitoneal configuration specifically uses the peritoneal cavity to manage CSF collection.

The main idea is to relieve hydrocephalus by moving excess CSF away from the brain's ventricles to a site where it can be absorbed. A ventriculoperitoneal shunt does this by routing CSF from the ventricles into the peritoneal cavity, where the peritoneum absorbs the fluid. Draining into the peritoneal cavity is preferred because it provides a large surface area for absorption and is well tolerated in children. Draining into the stomach isn’t a standard approach because the stomach isn’t an absorptive hub for CSF, and it could lead to complications. Other distal targets like the pleural space or venous system exist in alternate shunt types, but the ventriculoperitoneal configuration specifically uses the peritoneal cavity to manage CSF collection.