Revista española de anestesiología y reanimación
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Rev Esp Anestesiol Reanim · Aug 2001
[Preoperative testing routines for healthy, asymptomatic patients in the Canary Islands (Spain)].
To analyze patterns of routine testing before elective/scheduled surgery in healthy/asymptomatic patients classified as ASA I or II according to the American Society of Anesthesiologists. ⋯ Hospitals and individual anesthesiologists differ considerably in how they request preoperative tests. The variations can not be explained solely by differing patient needs given that respondents were contemplating only healthy/asymptomatic individuals undergoing relatively simple procedures.
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Rev Esp Anestesiol Reanim · Aug 2001
Case Reports[Cauda equina syndrome after intradural anesthesia with bupivacaine].
A 70-year-old man developed pain and functional weakness in the lower limbs with dysesthesia and urinary retention after subarachnoid anesthesia with 0.5% hyperbaric bupivacaine. Neurological and electrophysiological tests and follow-up, as well as diagnostic images (CAT and MR), ruled out spinal cord lesions. ⋯ Associated with use of microcatheters for continuous subarachnoid anesthesia and 5% hyperbaric lidocaine, cauda equina syndrome is rare after a single injection of bupivacaine. Although the pathogenesis of cauda equina syndrome is poorly understood, there is agreement on the neurotoxicity of local anesthetics, particularly of 5% hyperbaric lidocaine.
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Rev Esp Anestesiol Reanim · Aug 2001
[Changes in the bispectral index and the spectral edge frequency 90 during different phases of anesthesia with sevoflurane].
Electroencephalographic monitoring is one of the techniques used to measure hypnosis during anesthesia. Efforts to find a means to apply this monitoring function are justified by cases of intraoperative awakening and are in the interest of guaranteeing patient welfare and controlling anesthesia. ⋯ Electroencephalographic monitoring is useful for distinguishing between states of consciousness and unconsciousness during anesthesia, and is valid for the phases of induction and recovery. BIS values over 58 and SEF90 values over 13 may indicate inadequate hypnosis.