Services Offered

Global Monitoring, Inc is proud to offer multiple clinical and intraoperative services. If you are inquiring about a service or surgical procedure not listed, please contact us for more information.

Services Offered Include:

Evoked Potentials
    * BAEP
    * VEP
    * SSEP
    * Triggered
    * Spontaneous / Free-Run TcMEP
Pedicle Screw Stimulation
Cranial Nerve Monitoring
Laryngeal Nerve Monitoring
Direct Nerve Stimulation
Motor Strip Mapping
Newborn Hearing Screening
Surgeries covered Include:

Spinal Surgeries
    * Fusion
    * Decompressions
    * Tumor Resection
    * AVM Malformation
    * Scoliosis Correction
    * Tethered Cord
Cranial Surgeries
    * Aneurysm Clipping
    * Microvascular Decompression
    * Tumor Resection
    * Epilepsy Surgery
    * AVM Malformations
Cardiovascular Surgery
    * Aortic arch procedures
    * Carotid Endarterectomy

Billing Services

Global Monitoring, Inc. offers various options for billing services. Third-party billing through insurance, direct billing to a hospital, or a combination of both are available. Please contact us for more information or questions on billing services.

Services Description

The following services are individual modalities that can be used either alone or in combination with other modalities to fully monitor the nerves, spinal cord, and brain. Services are tailored to fit the needs of the individual patient and surgery in conjunction with the surgeon’s request for neuromonitoring.

EEG and Electrocorticography

Dating as far back as the 1800’s, electroencephalography (EEG) has traditionally been described as the “brain wave test.” EEG measures tiny electrical voltages generated by neurons in the brain. Traditionally, EEG is conducted painlessly in a clinical setting and can be a useful tool in the assessment of dementia, altered consciousness, coma, and brain death. However, EEG can also be conducted intraoperatively directly on an exposed brain; this is known as electrocorticography. The use of electrocorticography or intraoperative EEG has proven valuable by providing “real-time” assessment of brain function during cases such as tumor removal or aneurysm repair.

Evoked Potentials

First described in 1875, evoked potentials (EP) are similar to EEG potentials in that they are small electrical voltages. However, unlike EEG, EP’s are a series of averaged responses recorded to a time-locked stimulus. Stimuli have been specifically developed and are delivered dependent on the sensory system being evaluated, whether it be visual, auditory, or somatosensory. Averaged signals can be recorded from various areas in the nervous system, including nerves, spinal cord, brainstem, or cortex. EP’s from all modalities can be used in monitoring surgeries in which specific structures are at risk.


Electromyography is yet another common type of neurodiagnostic test utilized in clinical and surgical settings. In the late 1800’s, it was observed that muscles generated electrical activity. Research has helped to develop EMG as useful to assess both nerve and muscle function. Small diameter needles are placed into a muscle to assess its electrical characteristics. EMG is often used together with another test called nerve conduction in clinical settings to assess for neuropathies, radiculopathies, and myopathies.


Since the 1950’s, it has been observed that stimulating the cortex either directly or transcranially can elicit movement. Short pulses of electrical stimulation are sent through the skull to the cortex which activates muscles on the opposite side being stimulated. Transcranial motor evoked potentials (TcMEP) have since been developed as a modality useful to test the motor tracts of the spinal cord.