Spontaneous recovery from rocuronium measured by mechanomyography during 100- or 200-Hz tetanic stimulations compared to normalized train-of-four with acceleromyography.

Neuromuscular block recovery was evaluated using high-frequency tetanic ulnar nerve simulations compared to normalized train-of-four (NTOF) in anesthetized patients. Under intravenous general anesthesia, we compared rocuronium-induced neuromuscular recovery using 5 s 100- and 200-Hz tetanic stimulations via isometric mechanomyography to acceleromyographic NTOF in 20 consenting patients. The primary outcome was the comparison by Student's t-tests of 100- and 200-Hz tetanic fade ratios (residual force at the end of the contraction / maximal force reached during the 5 s) before rocuronium administration and at different recovery levels.

The interest of 100 versus 200 Hz tetanic stimulations to quantify low levels of residual neuromuscular blockade with mechanomyography: a pilot study.

A more sensitive method than the train-of-four ratio seems required to detect low levels of residual neuromuscular blockade before tracheal extubation. The goal of the study was to determine the potential benefit of 5 s of 100 versus 200 Hz tetanic stimulation to quantify the residual block with mechanomyography in anesthetised patients. Twenty informed and consenting 18- to 80-year-old patients undergoing nose surgery were included.

Fabrication and Characterization of a Flexible Fluxgate Sensor with Pad-Printed Solenoid Coils.

This paper presents the fabrication and characterization of a flexible, flat, miniaturized fluxgate sensor with a thin amorphous rectangular magnetic core fabricated by the pad/printing technique. Both the design and the various printing steps of the sensor are presented. The fluxgate sensor comprises of solenoid coils, and to the best of our knowledge, is the first to be printed with a conventional micro-printing technique.