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  • Title: [Anesthetic management for a patient with pheochromocytoma using magnesium sulfate and epidural block].
    Author: Sakamoto T, Kitagawa K, Kawaguchi M, Shimokawa M, Sha K, Kitaguchi K, Furuya H.
    Journal: Masui; 1996 Nov; 45(11):1400-5. PubMed ID: 8953877.
    Abstract:
    A 54-year-old woman with pheochromocytoma was anesthetized using magnesium sulfate infusion. Anesthesia was induced with thiopental and fentanyl, and maintained with 0.5% sevoflurane in nitrous oxide/oxygen and 60 mg.hr-1 of epidurally infused lidocaine. Muscle relaxation was achieved with intermittent administration of vecuronium under neuromuscular monitoring. Magnesium 2 g was infused prior to the tracheal intubation and followed by continuous infusion of 2 g.hr-1. These anesthetic techniques made hemodynamic state stable, and no additional vasoactive agents were needed. However, the infusion rate of magnesium was reduced to a half because of PQ interval prolongation. Magnesium is believed to be useful for anesthetic management for patients with pheochromocytoma, but the proper dose and the way of administration should be further investigated for their safe clinical use.
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