Intraoperative Neurophysiology Monitoring Unit (IONM)
The Intraoperative Neurophysiology Monitoring unit consists of a group of neurologists with formal training in clinical neurophysiology and IONM technologists, who work closely with other neurologists, surgeons and anesthesiologists at Massachusetts General Hospital to prevent postoperative neurologic deficit in a wide variety of surgical procedures.
Intraoperative neurophysiology is a fast growing field in neurology and clinical neurophysiology. Through an array of electrophysiological techniques, neurophysiologists are able to identify functional neural tissue, detect impending damage, localize the level of such damage within the neuroaxis and relay this information to surgeons during a variety of procedures. Neuro-monitoring and neuro-mapping prevent post-operative neurological deficit of the brain, brainstem, spinal cord, cranial and peripheral nerves.
Intraoperative neurophysiology has a significant positive impact for patient safety, enhances patient care, and is a great venue for neuroscience research.
The Intraoperative Neurophysiology Monitoring (IONM) team at Massachusetts General Hospital is a professional team of neurologists and technologists with many years of IONM experience, who provide live functional guidance. We are present during any surgery in which there lies a high risk of neurological deficit. The IONM service is committed to improve neurological outcome after surgery.
As a whole, the team has been part of multidisciplinary care, working closely with members of the Neurology, Neurosurgery, Vascular Surgery, Orthopedic Surgery and Anesthesia Departments. Our physicians are board certified neurologists with formal training in all aspects of clinical neurophysiology (i.e. EEG, Evoked Potentials, and EMG).
The advanced technologies available at our institution enable us to continually set new standards in the field, and the IONM service conducts cutting edge research having as primary goal improvement of patient care and overall clinical outcome. We aim to better the various techniques and methods we utilize, to further protect and prevent postoperative neurologic deficit.
- Link to IONM Fellowship- One year Clinical IONM fellowship
- Rotation for Neurophysiology Fellowship- 2 week rotation for MGH Epilepsy Fellows
Mirela V. Simon, M.D.
Medical Director, Intraoperative Monitoring Unit
Request for Services
Page OR Neuromonitoring Beeper: #11581
We are a 24 hour on call service during the week. Please page the main pager and follow instructions. A timely response will follow.
- Sarah Costello
IONM Fellowship Program Coordinator
- Mirela V. Simon, M.D., M.Sc.
Medical Director, Intraoperative Neurophysiology Unit
- Dinesh Nair, M.D., Ph.D.
- Reiner See, M.D.- IONM Fellow
- Mallory Davis
Administrative Manager, Clinical Neurophysiology Division
Office: (857) 238- 5460
(857) 238- 5478
Aaron Tripp, R.EEG.T, CNIM
- Sharika Rajan, M.D.- Research Fellow
Conditions and diseases that may warrant the use of Intraoperative Neurophysiological Monitoring during surgery:
- Abdominal Aortic Aneurysm
- Acoustic Neuroma
- Acute Spinal Cord Compression
- Acute Spinal Cord Injury
- Ankylosing Spondylitis
- Aortic Arch Surgery
- Back and Neck Pain
- Bone Cancers of the Spine
- Brachial Plexus Injury
- Brain Tumors
- Brainstem Tumors
- Cardiac Surgery
- Carotid Artery Disease
- Cerebral Aneurysm
- Cervical Spondylosis
- Chiari Malformation
- Epilepsy and Seizures
- Lumbo-Sacral Spine Disease
- Nerve Injury
- Nerve Tumors
- Pelvic Tumors
- Shoulder Surgery
- Skull Base Surgery
- Spinal Cord Tumors
- Spine Trauma
- Tethered Cord
- Thyroid Surgery
- Thoracic Aortic Aneurysm
- Thoracic Tumors