Neurophysiological Monitoring and Videolaryngoscopy

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Clalit Health Services




Postsynaptic Potential Summation


Procedure: Neurophysiological monitoring during intubation

Study type


Funder types




Details and patient eligibility


Myopathic patients undergoing cervical spine surgery are at risk for postoperative neurological deficits and sequelae. Awake fiberoptic intubation is considered the technique of choice for tracheal intubation in patient with cervical spine instability. However, awake fiberoptic intubation frequently causes significant patient discomfort, requires patient cooperation, anesthesiologist expertise and the availability of costly equipment . Videolaryngoscopy guided intubation is considered to be an effective alternative to awake fiberoptic intubation for cervical spine surgeries. Intraoperative neurophysiological monitoring (IONM) is a method that provides real time evaluation of the functional integrity of neural structures. The goal of IONM is to make surgery safer by detecting incipient neurological insults at a time when it can be avoided or minimized and by aiding in the identification of neural structure Rayia, et al. have described a case of monitoring intubation and neck extension for the indication of thyroidectomy in a Down syndrome boy with atlantoaxial instability under anesthesia with propofol and remifentanil without neuromuscular blockade. The authors conclude that this approach can be used to protect against spinal cord compression. While research has thoroughly evaluated the effect of laryngoscopy and intubation on cervical spine movement, to date, little is known about the impact of intubation process on neurophysiological responses, and on the feasibility of utilizing IONM for establishing a safe airway intubation. This prospective, interventional, cohort study is the first, to our knowledge, to examine the feasibility and added benefits of IONM throughout anesthetic intubation in patients undergoing cervical spine surgeries with the use of videolarynscope guided intubation.


20 estimated patients




18+ years old


No Healthy Volunteers

Inclusion criteria

All patients above 18y old, presenting for cervical spine surgeries , suffering from cervical spine instability, whom are able to comply with the study requirements and gave a written informed consent will be eligible for study enrollment.

Exclusion criteria

  • Patients presenting with heart disease will not be eligible to participate.
  • Patients with anticipated difficult airway.
  • Patients with a language barrier.
  • Patients with known allergy to any of the drugs used.
  • Pregnant women
  • Patients with a history of seizures or CVA.

Trial design

20 participants in 1 patient group

Neurophysiological monitoring during induction
Experimental group
Procedure: Neurophysiological monitoring during intubation

Trial contacts and locations



Central trial contact

Atara Davis; Leonid Eidelman

Data sourced from

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