نتایج جستجو برای: loss of consciousness

تعداد نتایج: 21189645  

Journal: :Anesthesiology 2010
Pierre Boveroux Audrey Vanhaudenhuyse Marie-Aurélie Bruno Quentin Noirhomme Séverine Lauwick André Luxen Christian Degueldre Alain Plenevaux Caroline Schnakers Christophe Phillips Jean-François Brichant Vincent Bonhomme Pierre Maquet Michael D Greicius Steven Laureys Mélanie Boly

BACKGROUND Mechanisms of anesthesia-induced loss of consciousness remain poorly understood. Resting-state functional magnetic resonance imaging allows investigating whole-brain connectivity changes during pharmacological modulation of the level of consciousness. METHODS Low-frequency spontaneous blood oxygen level-dependent fluctuations were measured in 19 healthy volunteers during wakefulnes...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Patrick L Purdon Eric T Pierce Eran A Mukamel Michael J Prerau John L Walsh Kin Foon K Wong Andres F Salazar-Gomez Priscilla G Harrell Aaron L Sampson Aylin Cimenser ShiNung Ching Nancy J Kopell Casie Tavares-Stoeckel Kathleen Habeeb Rebecca Merhar Emery N Brown

Unconsciousness is a fundamental component of general anesthesia (GA), but anesthesiologists have no reliable ways to be certain that a patient is unconscious. To develop EEG signatures that track loss and recovery of consciousness under GA, we recorded high-density EEGs in humans during gradual induction of and emergence from unconsciousness with propofol. The subjects executed an auditory tas...

Journal: :Journal of General Internal Medicine 2011

Journal: :iranian journal of nuclear medicine 2002
abbas madani javad esmaili javad jannati banafsheh dormanesh

a known case of nephrotic syndrome aged 32 months was admitted to icu because of loss of consciousness. in physical exam he had tachycardia, tachypnea and hypotension. lab data showed metabolic alkalosis and hypoxia. in cxr, vascular cut off was seen in right lung and perfusion lung scan showed absence of perfusion in the right lung.treatment was started with heparin and streptokinase, but unfo...

Journal: :iranian journal of child neurology 0
p. karimzadeh pediatric neurologist, associated professor, pediatric neurology department, pediatric neurology research center, shahid beheshti university of medical sciences l. afshar khas pediatric neurologist, assistant professor of rafsanjan university of medical scienc a. mosavat pediatric neurologist, assistant professor of pediatrics, rafsanjan university of medical sciences

objective absence status epilepticus (ase) is a common form of nonconvulsive status epilepcticus. it is  characterized by loss of consciousness with spike and wave discharges in eeg simultaneously. the most effective treatment of ase is diazepam, either infusion or in divided doses; the former is more expensive since patients must be admitted in an intensive care unit. the aim of this study was...

ژورنال: بیهوشی و درد 2016

Spinal anesthesia is the preferred technique for caesarean section. Although hypotension are common, but neurologic complications are rare.  Nevertheless, these side effects are serious and must be considered. The incidence of post dural puncture meningitis is very rare complication . In this paper we report a patient who had spinal anesthesia for cesarean section the three days ago and ensuing...

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