Video versus direct laryngoscopy on successful first-pass endotracheal intubation in ICU patients.

Background: Airway management in intensive care unit (ICU) patients is challenging. The aim of this study was to compare the rate of successful first-pass intubation in the ICU by using the direct laryngoscopy (DL) and that by using the video laryngoscopy (VL).

Methods: A randomized, non-blinded trial comparing first-pass success rate of intubation between VL and DL was performed.

New 9, 19-cycloartane triterpenoid from the root of Cimicifuga foetida.

Aim: To study the 9, 19-cycloartane triterpenes from the roots of Cimicifuga foetida.

Method: Chromatographic separations by silica gel, C18 reversed phase silica gel, and high-performance liquid chromatography (HPLC) were used. All of the structures were elucidated on the basis of spectroscopic analysis and chemical methods.