Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial
Sitting position does not alter minimum alveolar concentration for desflurane.
Hypotension is a common complication of the sitting position during anesthesia, and is often counteracted by decreasing anesthetic depth, thereby exposing patients to the risk of being inadequately anesthetized. Baroreceptor unloading and the consequent sympathoexcitation, as during head up tilt, decreases pain threshold and arouses the central nervous system (CNS), whereas hypotension exerts a direct CNS depressant effect. We estimated the minimal alveolar concentration (MAC) of desflurane for immobility in patients undergoing surgery in the sitting position, in comparison to MAC desflurane for patients having a similar type of surgery in the supine position. ⋯ The sitting position does not change desflurane anesthetic requirements for immobility.
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To review the effects of the long QT syndrome (LQTS) in the parturient and the current anesthetic management of patients with LQTS. ⋯ An understanding of LQTS and the associated risk factors contributing to dysrhythmias is important for anesthesthesiologists caring for parturients with LQTS.