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Kernohan's Notch Phenomenon: A Case Study

Schedler, Pam; Geary, Siobhan
Journal of Neuroscience Nursing: June 2002
Articles: PDF Only

Abstract:

In a patient suffering from brain herniation due to a right-sided subdural hematoma, a neurological examination should show left-sided deficits, known as localizing signs, and a decreased level of consciousness. However, false localizing signs may be present, attributed to pressure on Kernohan's notch. A case study demonstrates these false localizing signs, known as Kernohan's notch phenomenon.

Questions or comments about this article may be directed to: Pam Schedler, MS RN CCRN, Sutter Medical Center, Nursing Administration. 2801 L Street, Sacramento, CA 95816. She is a clinical nurse specialist-neuroscience at Sutter General Hospital.

Siobhan Geary, MS RN CNRN, is a clinical nurse specialist-neuroscience at Sutter Medical Center.

© 2002 American Association of Neuroscience Nurses