pneumocephalus
Pronunciation: NEW-moh-SEF-ah-lus
Rare complication of laparoscopic surgery involving air trapped within the skull.
Full Definition
Pneumocephalus is an uncommon but potentially serious complication of laparoscopic surgery characterized by the presence of gas within the intracranial cavity. This can occur when CO₂ used for insufflation migrates through anatomical pathways or congenital defects to reach the brain. Patients may present with headache, confusion, or neurological symptoms postoperatively. The condition is typically diagnosed through CT imaging showing air pockets in the brain. Most cases are self-limiting as the CO₂ is gradually absorbed, but severe cases may require medical intervention. The term should not be confused with pneumoencephalus, which refers to deliberate introduction of air for diagnostic purposes.
Usage
Usage note: Distinguish clearly from pneumoencephalus (diagnostic procedure) in clinical documentation.
In Context
- "The patient developed pneumocephalus following prolonged laparoscopic surgery in the Trendelenburg position." — Case report
- "CT scan revealed pneumocephalus as the cause of the patient's postoperative neurological symptoms." — Radiology report