Continuous monitoring of nerve, spine and brain function has been demonstrated to reduce the likelihood of postoperative complications for a wide range of surgical procedures. Monitoring should be performed whenever the surgical team determines that nerve, spine or brain structures are at-risk due to the complexity of the surgery, the extent of the preoperative problem, or any other patient related factors.

The OHSU Intraoperative Monitoring Services is available to provide state-of-the-art monitoring technical and interpretation services at hospitals in the Greater Portland and Southwest Washington areas on a fee-for-service basis.

The Intraoperative Monitoring Services team has monitoring training and experience comparable to or exceeding any programs in the nation in the areas of neurosurgery, orthopedic surgery, otolaryngology/head & neck surgery and cardiovascular surgery.

A bipolar electrode recording probe rests on the VIIIth cranial nerve while electrophysically mapping the vestibular and acoustic sections prior to a vestibular neurectomy.

Clinical Staff:

William Hal Martin, Ph.D. FASNM - Director
Professor of Otolaryngology/Head & Neck Surgery
Professor of Public Health & Preventive Medicine
35 years of experience

Robert L. Folmer, Ph.D.
Associate Professor of Otolaryngology/Head & Neck Surgery
15 years of experience

Baker Y-B. Shi, M.D., Ph.D.
Assistant Professor of Otolaryngology/Head & Neck Surgery
15 years of experience

Anne N. Tucker, Au.D., CCC-A, CNIM, DABNM
Instructor of Otolaryngology/Head & Neck Surgery
11 years of experience

Contact information:

For information or service scheduling, contact:

William Hal Martin, Ph.D.
503 494 2927
martinw@ohsu.edu
Oregon Hearing Research Center
NRC04
3181 SW Sam Jackson Park Rd.
Portland, OR 97239

Pedcle screw placement verification is performed by electrically stimulating pedicle screws and recording the threshold at which EMG responses can be evoked from related muscle groups.