Related Experiment Video
Updated: Jul 20, 2026
07:43
Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
19.2K
Case of Pituitary Apoplexy After Surgery
Ian J McClain1, Philip M Skidd
1Larner College of Medicine (IJM, PMS), University of Vermont, Burlington, Vermont; and Departments of Surgery (PMS), and Neurological Sciences (PMS), University of Vermont Medical Center, Burlington, Vermont.
Summary
No abstract available in PubMed .
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Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
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