Study for the Medical Council of Canada Qualifying Examination (MCCQE) I. Engage with flashcards and multiple-choice questions with detailed feedback. Prepare confidently!

Multiple Choice

Which of the following is NOT a commonly listed complication of shunting in normal pressure hydrocephalus?

The main idea here is understanding which shunt complications are typically emphasized for normal pressure hydrocephalus. In this context, the most commonly encountered issues are related to the shunt’s function or the brain’s response to altered CSF dynamics: subdural hematoma from overdrainage, infection, and shunt failure or obstruction. Overdrainage can cause the ventricles to collapse slightly and pull on bridging veins, leading to a subdural bleed; infection is a risk with any implanted CSF device; and mechanical failure or obstruction of the shunt is a frequent reason for recurrence of symptoms and needs revision. Seizures are not usually listed among the common shunt-specific complications. They can occur in some patients due to other factors such as preexisting epilepsy, brain injury, infection, or hemorrhage, but they are not a typical or frequent direct consequence of shunting in normal pressure hydrocephalus. If seizures do occur, they’re generally considered a less common or incidental complication rather than a standard, expected risk of the shunt procedure.

The main idea here is understanding which shunt complications are typically emphasized for normal pressure hydrocephalus. In this context, the most commonly encountered issues are related to the shunt’s function or the brain’s response to altered CSF dynamics: subdural hematoma from overdrainage, infection, and shunt failure or obstruction. Overdrainage can cause the ventricles to collapse slightly and pull on bridging veins, leading to a subdural bleed; infection is a risk with any implanted CSF device; and mechanical failure or obstruction of the shunt is a frequent reason for recurrence of symptoms and needs revision.

Seizures are not usually listed among the common shunt-specific complications. They can occur in some patients due to other factors such as preexisting epilepsy, brain injury, infection, or hemorrhage, but they are not a typical or frequent direct consequence of shunting in normal pressure hydrocephalus. If seizures do occur, they’re generally considered a less common or incidental complication rather than a standard, expected risk of the shunt procedure.