BACKGROUND Intraoperative arterial hypotension can lead to severe complications in patients undergoing carotid endarterectomy, in particular if cerebral auto-regulation is impaired. Short-acting agents, such as phenylephrine or ephedrine, commonly used to correct intra-operative hypotension, have different hemodynamic effects. Recently, it was reported that, in healthy anesthetized subjects wit...

Krystyna Lesiak and Wojciech J. Stec Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-362 Lodz, Boczna 5, Poland Z. Naturforsch. 33b, 782-785 (1978); received March 28, 1978 1,3,2-Oxazaphospholidines, (—)Ephedrine, Thioanilides, Thioesters, Stereochemistry Both isomers of 2-anilido-3,4-dimethyl-5-phenyl-l,3,2-oxazaphospholidine-2-thiones (2 a and 2 b) derived from ...

Objectives: The δ15N, δ13C, and δ2H profile of the ephedrine as a methamphetamine precursor is fingerprint to describing its origin. origin one supporting data in profiling. In this research, isotope profiles natural, synthetic, semi-synthetic clusters were established. These applied predict from seized samples Indonesia. Methods: clustered two steps. Initially, pseudoephedrine various prepared...

Capillary electrophoresis using β-cyclodextrin and dimethyl-β-cyclodextrin as chiral selectors was performed in parallel to gas chromatography-mass spectrometry, in an effort to characterize the enantiomeric substances in 557 illicit methamphetamine tablets in Thailand collected during 1983-2000. The study revealed the stimulants in these tablets, namely ephedrine, methamphetamine and caffeine,...

An unusual case of ventricular arrhythmia is reported with electrocardiograms showing complete attacks of ventricular tachycardia, ventricular flutter and ventricular fibrillation. The etiology is unknown. Large doses of quinidine, to the point of toxicity, seemed to halt the arrhythmia but did not prevent its recurrence. Ephedrine was given with resulting immediate improvement and no recurrenc...