Rheumatoid arthritis: neurologic manifestations
Jan. 17, 2023
Nearly 3,000 illustrations, including video clips of neurologic disorders.
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
Full spectrum of neurology in 1,200 comprehensive articles.
Listen to MedLink on the go with Audio versions of each article.
A 15-year-old male with refractory intracranial hypertension after severe traumatic brain injury. Intracranial pressure steadily rises and initially correlates with intracranial pressure pulse amplitude. RAP, which correlates intracranial pressure to amplitude, is over 1, suggesting impaired brain compliance. This is further reflected in the scatter plot (right) correlating intracranial pressure and amplitude. As intracranial pressure exceeds 65 mmHg, amplitude decreases with rising intracranial pressure, suggesting that the critical threshold of brain compliance has been exceeded. (Contributed by Dr. Brian Appavu.)