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IOM Procedures

CDI's staff technologists have experience in providing monitoring for a wide range of surgical procedures where neurological structures/functions are at risk. Glide the cursor over a specific procedure, below, for the suggested neurophysiological measurement(s) and recommended modalities.

Otolarynology (ENT)

ThyroidectomyNeurophysiological Measurement:
Recurrent Laryngeal Nerve
Recommended Modality:
Spontaneous and Evoked EMG
ParathyroidectomyNeurophysiological Measurement:
Recurrent Laryngeal Nerve
Recommended Modality:
Spontaneous and Evoked EMG
TympanoplastyNeurophysiological Measurement:
Facial Nerve (CN VII)
Recommended Modality:
Spontaneous and Evoked EMG
Facial Nerve DecompressionNeurophysiological Measurement:
Facial Nerve (CN VII)
Recommended Modality:
Spontaneous and Evoked EMG
MastoidectomyNeurophysiological Measurement:
Facial Nerve (CN VII)
Recommended Modality:
Spontaneous and Evoked EMG
Vestibular Nerve SectionNeurophysiological Measurement:
Vestibulocochlear (CN VIII)
Recommended Modality:
Spontaneous and Evoked EMG
Submandibular Gland ExcisionNeurophysiological Measurement:
Facial Nerve (CN VII)
Recommended Modality:
Spontaneous and Evoked EMG
Acoustic/Vestibular TumorNeurophysiological Measurement:
      Vestibulocochlear (CN VIII),
      Facial Nerve (CN VII),
      Glossopharyngeal (CN IX),
      Vagus (CN X)
Recommended Modality:
      Spontaneous and Evoked EMG
ParotidectomyNeurophysiological Measurement:
Facial Nerve (CN VII)
Recommended Modality:
Spontaneous and Evoked EMG
Radical Neck DissectionNeurophysiological Measurement:
      Spinal Accessory (CN XI),
      Facial Nerve (CN VII),
      Hypoglossal Nerve (CN XII)
Recommended Modality:
      Spontaneous and Evoked EMG
Cochlear ImplantNeurophysiological Measurement:
      Vestibulocochlear (CN VIII),
      Facial Nerve (CN VII),
      Glossopharyngeal (CN IX),
      Vagus (CN X)
Recommended Modality:
      Spontaneous and Evoked EMG

Neurosurgery

Cerebral AneurysmNeurophysiological Measurement:
Cortical Activity, Brainstem Activity
Recommended Modality:
EEG, TcMEP, SEP
Craniotomy (Crani for Tumor, AVM, etc.)Neurophysiological Measurement:
Dependent on Location
Recommended Modality:
EEG, TcMEP, SEP
Open Skull Based TumorNeurophysiological Measurement:
Cranial Nerves, Cortical Activity
Recommended Modality:
EEG, Spontaneous and Evoked EMG
Endoscopic Skull Based
TumorNeurophysiological Measurement:
Cranial Nerves, Cortical Activity
Recommended Modality:
EEG, Spontaneous and Evoked EMG
Spinal Cord Tumor ResectionNeurophysiological Measurement:
      Spinal Cord, Nerve Roots
Recommended Modality:
      SEP, TcMEP, Spontaneous and
      Evoked EMG
Chiari MalformationNeurophysiological Measurement:
Spinal Cord/Brainstem Activity
Recommended Modality:
SEP, BAEP, TcMEP
Microvascular DecompressionNeurophysiological Measurement:
      Cranial Nerve (dependent on
      location), Brainstem Activity
Recommended Modality:
      BAEP, Spontaneous and Evoked EMG
Epilepsy SurgeryNeurophysiological Measurement:
Cortical Activity
Recommended Modality:
EEG
Functional MappingNeurophysiological Measurement:
Cortical Activity
Recommended Modality:
EEG
Sub-clinical SeizuresNeurophysiological Measurement:
Cortical Activity
Recommended Modality:
EEG
Dorsal Root RhizotomyNeurophysiological Measurement:
Nerve Roots
Recommended Modality:
Spontaneous and Evoked EMG

Spine

LaminectomyNeurophysiological Measurement:
Spinal Cord, Nerve Roots
Recommended Modality:
SEP
ForaminotomyNeurophysiological Measurement:
Spinal Cord, Nerve Roots
Recommended Modality:
SEP
DiscectomyNeurophysiological Measurement:
Spinal Cord, Nerve Roots
Recommended Modality:
SEP
CorpectomyNeurophysiological Measurement:
Spinal Cord, Nerve Roots
Recommended Modality:
SEP
Pedical Screw FixationNeurophysiological Measurement:
Spinal Cord, Nerve Roots
Recommended Modality:
Spontaneous and Evoked EMG
ScoliosisNeurophysiological Measurement:
      Spinal Cord, Nerve Roots
Recommended Modality:
      SEP, TcMEP, Spontaneous and
      Evoked EMG
Interbody Fusions
(PLIF, TLIF, ALIF, etc.)Neurophysiological Measurement:
      Spinal Cord, Nerve Roots
Recommended Modality:
      SEP, TcMEP, Spontaneous and
      Evoked EMG
Vertebral Tumor
ResectionNeurophysiological Measurement:
      Spinal Cord, Nerve Roots
Recommended Modality:
      SEP, TcMEP, Spontaneous and
      Evoked EMG
Tethered CordNeurophysiological Measurement:
      Spinal Cord, Nerve Roots
Recommended Modality:
      SEP, TcMEP, Spontaneous and
      Evoked EMG
Spinal Cord Stimulator
ImplantationNeurophysiological Measurement:
Spinal Cord
Recommended Modality:
SEP

Diagnostics

Head TraumaNeurophysiological Measurement:
Cortical Activity, Spinal Cord
Recommended Modality:
EEG, SEP
UnconsciousnessNeurophysiological Measurement:
Cortical Activity, Spinal Cord
Recommended Modality:
EEG, SEP
HypothermiaNeurophysiological Measurement:

Recommended Modality:
SEP
Monitoring Movement DisordersNeurophysiological Measurement:
      Subthalamic Nuclei
Recommended Modality:
      EEG, TcMEP, SEP, Single
      Unit Recording
SeizuresNeurophysiological Measurement:
Cortical Activity
Recommended Modality:
EEG
FibromyalgiaNeurophysiological Measurement:

Recommended Modality:
SEP
Trigeminal NeuralgiaNeurophysiological Measurement:
Brainstem Activity
Recommended Modality:
BAEP
Multiple SclerosisNeurophysiological Measurement:
Long Pathways
Recommended Modality:
SEP, VEP
Newborn Hearing ScreeningNeurophysiological Measurement:
Brainstem Activity
Recommended Modality:
BAEP
High Cervical MyelopathyNeurophysiological Measurement:
Cortical Activity, Cervical Spine
Recommended Modality:
EEG, SEP
Hemifacial SpasmNeurophysiological Measurement:
Brainstem Activity
Recommended Modality:
BAEP, Facial Nerve Lateral Spread

Orthopedic

Acetabular FractureNeurophysiological Measurement:
Sciatic Nerve
Recommended Modality:
SEP
Total Hip ArthroplastyNeurophysiological Measurement:
Sciatic Nerve
Recommended Modality:
SEP
Total Hip RevisionNeurophysiological Measurement:
Sciatic Nerve
Recommended Modality:
SEP
Hip I & DNeurophysiological Measurement:
Sciatic Nerve
Recommended Modality:
SEP
Total Knee ArthroplastyNeurophysiological Measurement:
Sciatic Nerve
Recommended Modality:
SEP
Total Shoulder ArthroplastyNeurophysiological Measurement:
Brachial Plexus
Recommended Modality:
TcMEP, Spontaneous EMG
Bone Tumor ResectionNeurophysiological Measurement:
Spinal Cord
Recommended Modality:
SEP, TcMEP, Spontaneous EMG

Urology

Radical ProstatectomyNeurophysiological Measurement:
Pudendal Nerve
Recommended Modality:
SEP
Radical CystectomyNeurophysiological Measurement:
Parasympathetic Nerve
Recommended Modality:
Stimulation/Bladder Manometric

Cardiac

Abdominal/Thoracic
AneurysmNeurophysiological Measurement:
Spinal Cord, Cortical Activity
Recommended Modality:
SEP, EEG
Off Pump CABGNeurophysiological Measurement:
Spinal Cord, Cortical Activity
Recommended Modality:
SEP, EEG
Cardiopulmonary BypassNeurophysiological Measurement:
Spinal Cord, Cortical Activity
Recommended Modality:
SEP, EEG

Vascular

Carotid EndarterectomyNeurophysiological Measurement:
Spinal Cord, Cortical Activity
Recommended Modality:
SEP, EEG
Subclavian BypassNeurophysiological Measurement:
Cortical Activity
Recommended Modality:
SEP, EEG

Radiology

Endovascular Coiling of
AVM/AneurysmNeurophysiological Measurement:
Spinal Cord/ Cortical Activity
Recommended Modality:
SEP, EEG, TcMEP

Common Monitoring Modalities We Utilize

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