Journal of neurosurgical anesthesiology
-
J Neurosurg Anesthesiol · Apr 2013
Comparative StudyAn alternative position for the BIS-Vista montage in frontal approach neurosurgical cases.
Appropriate placement of the bispectral index (BIS)-vista montage for frontal approach neurosurgical procedures is a neuromonitoring challenge. The standard bifrontal application interferes with the operative field; yet to date, no other placements have demonstrated good agreement. The purpose of our study was to compare the standard BIS montage with an alternate BIS montage across the nasal dorsum for neuromonitoring. ⋯ We determined that the nasal montage produces values that have slightly more variability compared with that ideally desired, but the variability is not clinically significant. In cases where the standard BIS-vista montage would interfere with the operative field, an alternative positioning of the BIS montage across the nasal bridge and under the eye can be used.
-
J Neurosurg Anesthesiol · Apr 2013
Postischemic sevoflurane offers no additional neuroprotective benefit to preischemic dexmedetomidine.
We designed this study to determine whether a combination of dexmedetomidine and sevoflurane postconditioning provides additive neuroprotection in a rat model of transient global cerebral ischemia. ⋯ A combination of preischemic dexmedetomidine and sevoflurane postconditioning provides no additional neuroprotective benefit over preischemic dexmedetomidine or sevoflurane postconditioning alone.
-
J Neurosurg Anesthesiol · Apr 2013
Accuracy of end-tidal CO2 measurement through the nose and pharynx in nonintubated patients during digital subtraction cerebral angiography.
To determine the accuracy of end-tidal CO2 (PETCO2) obtained in the nose through the Smart CapnoLine and in the pharynx through the modified Filterline H Set with supplemental oxygen at 5 L/min in nonintubated patients undergoing digital subtraction cerebral angiography (DSA). ⋯ In a clinical setting, end-tidal CO2 measurements sampled from the nose and the pharynx were accurate and reliable in nonintubated patients with a nasopharynx airway in place during DSA.