Non-invasive brainstem monitoring: the ocular microtremor.

  • Robertson J
  • Timmons S
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Abstract

The ocular microtremor (OMT) is mediated by the oculomotor area of the brainstem and is altered in several pathologic states, including traumatic brain injury, general anesthesia, brain death, coma, Parkinsonism and multiple sclerosis. The EYETECT tremor monitor is a non-invasive means of measuring the frequency and amplitude of this microscopic tremor. It has been clinically tested in these clinical scenarios and has been found to be a reliable means of detecting the depth of anesthesia, and has been useful in predicting outcome in coma and traumatic brain injury patients and in confirming brain death. This paper reviews the scientific literature on the EYETECT OMT monitor, describes the underlying physiology and discusses the potential for future works and clinical use of this innovative technology.

Author-supplied keywords

  • Anesthesia
  • Brain Death
  • Brain Stem
  • Coma
  • Eye Movements
  • Humans
  • Monitoring, Physiologic
  • Oculomotor Muscles
  • Predictive Value of Tests
  • Tremor
  • anatomy & histology
  • diagnosis
  • etiology
  • innervation
  • methods
  • physiopathology

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Authors

  • James Robertson

  • Shelly Timmons

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