Comparison of the Spectral Features of the Frontal Electroencephalogram in Patients Receiving Xenon and Sevoflurane General Anesthesia.

Background: Depth-of-anesthesia monitoring is often utilized for patients receiving xenon anesthesia. Processed electroencephalogram (EEG) depth-of-anesthesia monitoring relies to a significant extent on frequency domain analysis of the frontal EEG, and there is evidence that the spectral features observed under anesthesia vary significantly between anesthetic agents. The spectral features of the EEG during xenon anesthesia for a surgical procedure have not previously been described.

Use of a Flexible-Tipped "Bougie" During Videolaryngoscopic Intubation in a Patient With a Base of Tongue Tumor: A Case Report.

A patient with a base of tongue tumor was judged to be safe to intubate under general anesthesia, with a new flexible tip "bougie." This enabled rapid and easy navigation around the distorted anatomy caused by the tumor. The bougie's tip can be flexed or extended by activating a slide on the shaft and was intended for use with the hyperangulated blade of a videolaryngoscope.

Comparison of two ventilation techniques during general anesthesia for extracorporeal shock wave lithotripsy: high-frequency jet ventilation versus spontaneous ventilation with a laryngeal mask airway.

Objectives: To compare high-frequency jet ventilation (HFJV) with spontaneous ventilation (SV) in general anesthesia for extracorporeal shock wave lithotripsy (ESWL).

Methods: We conducted a retrospective review of 91 consecutive patients undergoing either HFJV with a Ben Jet airway or SV with a laryngeal mask airway, comparing the total number of shocks for stone ablation and the time in the post-anesthetic care unit between groups. Stone ablation rates on postoperative x-rays were compared.

Plasma ropivacaine levels following scalp block for awake craniotomy.

The plasma levels of ropivacaine HCl with 5 mcg/mL epinephrine were measured in 10 patients following scalp blockade for awake craniotomy. A mean dose of 260 mg (3.6 mg/kg) resulted in peak plasma concentrations of 1.