Open AccessEvoked Potential Monitoring Identifies Possible Neurological Injury During Positioning for Craniotomy
Author(s) -
Zirka H. Anastasian,
Brian Ramnath,
Ricardo J. Komotar,
Jeffrey N. Bruce,
Michael B. Sisti,
Edward J. Gallo,
Ronald G. Emerson,
Éric Heyer
Publication year - 2009
Publication title -
anesthesia and analgesia/anesthesia and analgesia
Language(s) - English
Resource type - Journals
eISSN - 1526-7598
pISSN - 0003-2999
DOI - 10.1213/ane.0b013e3181b086bd
Subject(s) - medicine , craniotomy , physical medicine and rehabilitation , intensive care medicine , neuroscience , medical emergency , anesthesia , biology
Somatosensory-evoked potential (SSEP) monitoring is commonly used to detect changes in nerve conduction and prevent impending nerve injury. We present a case series of two patients who had SSEP monitoring for their surgical craniotomy procedure, and who, upon positioning supine with their head tilted 30 degrees-45 degrees, developed unilateral upper extremity SSEP changes. These SSEP changes were reversed when the patients were repositioned. These cases indicate the clinical usefulness of monitoring SSEPs while positioning the patient and adjusting position accordingly to prevent injury.