The recording of somatosensory-evoked potentials (SEP) is recommended for carotid artery surgery. The electrophysiological early warning provided by monitoring SEP is a vital tool to avoid neurological impairment resulting from cerebral ischemia. The SEP test is performed in a continuous repetitive manner and the waveforms are indicative of changes in cerebral perfusion (SEP >>). As opposed to Doppler ultrasonography, the SEP test is relatively easy to set up, and it provides continuous information throughout the procedure. The SEP is an easy-to-implement solution that can identify the onset of cerebral ischemia during carotid surgery.
SEPs allow a direct assessment of the effectiveness of selected ischemia-preventative measures (measures to prevent inadequate circulation). As a result, critical changes during the surgical treatment of carotid stenosis (narrowing of the major neck artery) are visible. This real-time information enables the surgeon to change his or her operation strategy during the procedure and prevent possible postoperative neurological deficits.
In thoracic and thoraco-abdominal aortic aneurysms, there is mention of a pathological enlargement of the aorta. This has the typical symptoms of back pain, hoarseness and dysphagia. With an advanced aneurysm, there is a risk of rupture and a high mortality rate of patients.
Due to the continuous recording of somatosensory-evoked potentials (SEP) and motor-evoked potentials (MEP), thoracic and thoraco-abdominal aortic surgery can be indicated at the beginning of a spinal ischemia.
Spinal neuromonitoring is also an important tool during the procedure and allows the clinician to directly check the effectiveness of selected ischemia-preventative measures. For surgeon and patient, the use of these techniques can provide additional risk-mitigation during this life-saving intervention.
inomed somatosensory-evoked potentials technology, when applied to carotid surgery and surgery of the thoracic and thoraco-abdominal aortic aneurysms, provides the surgeon with additional information. This information enables the surgeon to mitigate risk and enhance the outcome for the patient, resulting in a better quality of life.