Prolonged relaxant effects of vecuronium in patients with deliberate hypermagnesemia: Time for caution in cesarean section

Akiko Yoshida, Yosuke Itoh, Kei Nagaya, Kazuya Takino, Jun Ichi Sugawara, Takashi Murakami, Kunihiro Okamura, Masahiko Takahashi

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We present two cases showing significantly prolonged action of vecuronium from magnesium treatment after general anesthesia for urgent cesarean section. The serum magnesium levels were maintained at a therapeutic range for severe eclampsia in one patient (5.6mg·dl-1) and for tocolysis in another with placenta previa totalis (6.9mġdl-1). The obstetrics-specific emergency in each patient led us to proceed with general anesthesia but using reduced-dose vecuronium, which failed to prevent prolongation of the neuromuscular block. As a result, the patients received prolonged mechanical ventilation. Our cases underscore the need for anesthesiologists as well as obstetricians to be aware of the prolongation of the action of nondepolarizing muscle relaxants as a result of magnesium treatment.

Original languageEnglish
Pages (from-to)33-35
Number of pages3
JournalJournal of Anesthesia
Volume20
Issue number1
DOIs
Publication statusPublished - 2006 Feb 1

Keywords

  • Eclampsia
  • Obstetrics
  • Placenta previa
  • Spinal anesthesia
  • Tocolysis

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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